Very useful video. Thank you for all the time and effort you put into it! Always a thumbs up and looking forward to the next video!
@electronicsNmore
4 жыл бұрын
Thanks for watching! I greatly enjoyed yesterday's video!
@JT-lq4yd
4 жыл бұрын
I subbed to PF for the excellent and valuable info on his videos, now I'm finding out he watches electronicsNmore videos... I will have to subscribe to electronicsNmore(when i finish this comment) for the same useful information as PF does and as shown in this video.
@94crocky
2 жыл бұрын
@@JT-lq4yd exactly my thoughts. A great compliment to have Project Farm comment on your video.
@shanefages
10 ай бұрын
Hey it’s project farm lol I watch your vids all the time man
@davidyummus6259
10 ай бұрын
Did you make one ?
@benhahaj8826
Жыл бұрын
Man thats all I need? I knew there was a way to make one I spent atleast 3 hours scouring the web, I even went over to chatgpt and asked them boys. I just can't believe no one else made this video!
@Miata822
3 жыл бұрын
Wonderful video. I used NTC thermistors in a commercial application to start high power DC cooling fans in an application that used a switch mode power supply sometimes. Mouser carries a wide assortment of these devices. Two tips on their use: Avoid the urge to automatically oversize these components. Choose an amperage rating just above your real load (fused correctly, of course). Secondly, these things get quite hot. Ensure they don't cause thermal damage to your wires but don't actively cool them. Resistance increases when they are cooled. I used a delay-on-make relay to cut the thermistors out of the circuit once the fans had started. A note on practical use. Once you turn the load on and get it running the thermistor's resistance drops. When you turn the load off the resistance will remain low until the thermistor cools. Switching the load off then immediately back on again before the thermistor cools will likely overload your power supply or inverter. That is part of the reason I used the time delay relay, so that the fans could cycle on and off with the thermistors being cool for each start.
@electronicsNmore
3 жыл бұрын
Yes, you cannot cycle on and off quickly. The component needs to cool at least 30 seconds. Thanks for watching!
@natvega1
Жыл бұрын
I made one here in Puerto Rico, all I could find was a 10D-20, the fridge at start up is 8 amp and 1.5 amp running, I have a chinese inverter without any info on it of amp rating. The fridge with this 10D-20 starts up with no problem with one car battery and the small inverter, the battery remains at 12.1 after one hour even without solar, so I would say that this device does curve the inrush current well enough to power your fridge at startup with a cheap inverter.
@cafepuya
Жыл бұрын
Eso quiere decir que puedo hacer que el compresor de una nevera grande arranque con una planta pequeña??
@natvega1
Жыл бұрын
@@cafepuya primero tiene que medir el ampere de arranque luego el ampere del motor despues del arranque, si el ampere de arranque es de 11 ampere y luego 6 ampere corriendo, tienes que conseguir un inrush current limiter segun el consumo de arranque y el consumo del motor despues del arranque entonces si con una planta pequeña cual alcanza los amperes del motor despues del arranque, si funciona ya lo e visto muchas veces.
@cafepuya
Жыл бұрын
@@natvega1 Es que tengo una Sportsman GEN1000i de 1000W-800w mi nevera dice en el sticker de adentro 6.5A.. A la planta le tengo un kill-a-watt para ver el consumo de watts y cuando está corriendo veo que usa 120w a 230w aveces marca 0.0 como si estuviera apagada.. pero de momento cuando el Compressor arranca.. llega como a los 8Amperes y la planta de apaga. No se si con este truco pueda solucionar eso.
@natvega1
Жыл бұрын
@@cafepuya si, si hace este inrush current limiter tu nevera va funcionar con el sportman, enviame tu email y te envio una photo de como se hace, el limiter cuesta $6 y se encuentra en cualquier tienda de venta electronico
@natvega1
Жыл бұрын
@@cafepuya How do you reduce the starting current of a refrigerator? a) use a start capacitor, 150uF, for the first 1000ms. b) use an NTC thermistor. c) power resistors, for the first 1000ms (similar effect as NTC) d) voltage transformation to a lower voltage, e.g. from 230V to 200V.
@dennisjohnson5271
4 жыл бұрын
You can find these current limiters in the variable speed, dc, hvac blower motors used in most late model ac systems. I stock them on my service truck because they fail very often. Most techs replace the motors for around $800-1000 I take them apart and replace the limiter for about $200. This is the most common failure of the hvac motors.
@electronicsNmore
4 жыл бұрын
Many people allow their air filters to get very dirty, and the reduced airflow causes the winding of the blow motor to run hotter. Thanks for watching!
@KristoferTravelsHomesteading
3 жыл бұрын
This works great. I made this device exactly like yours. I have an off grid system and my new fridge was tripping my inverter all the time because of the big surge when it starts up. Ever since I installed this running on just the 5 ohms it has not tripped the inverter. Thank you thank you.
@electronicsNmore
3 жыл бұрын
Glad it helped! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others on social networking sites. Thank you kzitem.infoplaylists
@stevej.6674
3 жыл бұрын
I have the exact same problem with my new 240v fridge....probably going to try & make one of these also.
@amlanganon
3 жыл бұрын
@@stevej.6674 good day!! how did it go? what thermistor did you buy... i have same problem with my 220v 150 watts fridge..always trips the inverter after it wakes from cycle..
@SuperWhizy
2 жыл бұрын
Love your "schematic"; unorthodox but effective at clearly explaining the role of the grey box. Keep at it!
@lazar2175
4 жыл бұрын
Very elegant solution. But i think most people trying to run big inductive loads off inverters are trying to do emergency repair, so i thought i'd give you a few ideas on how you could limit the inrush current with stuff you can find around your house. So if you are a regular guy you probably don't have NTC's just laying around, especially in a emergency situation when power is out. What you probably own or could easily get your hands on is a graphite pencil. Shave off the ends and connect the wires to it, then wire a lightswitch in parallel to it. It is a single use and incredibly dangerous but when that little risk is the difference between life and death, i'm pretty sure you won't care. I used this method to start a really big drill when we had floods in 2014. I used that drill to bust a hole in a floor and stop water into coming into first floor flats and creating damage.
@electronicsNmore
4 жыл бұрын
Not really about what you'd do in an emergency situation. It's about having the device on hand now, so in the event you need to power an appliance/power tool using a small generator or power inverter, you'll have a good chance of doing it. Before the pencil trick, I'd pull the oil filled run caps out of my A/C system to get the inrush reduced. Thanks for watching!
@charlesrichards5389
3 жыл бұрын
MacGyver would be proud!
@eldiony45360
11 күн бұрын
Thanks dude u just safed be alot of time and money well not that much time because ive been researching for a while but still i now know U got ur self a new like and a new subscriber
@billg4630
2 жыл бұрын
I knew the minute I seen project Farm comment that this was a good video after watching it I can confirm it's an awesome video thanks a lot appreciate it
@electronicsNmore
2 жыл бұрын
Glad you enjoyed it!
@GregHassler
2 жыл бұрын
Cool, simple solution. I just ordered parts to build something similar. I'm just going to put a receptacle on the end directly in the box.
@NETBotic
4 жыл бұрын
I always take an angle grinder camping, thanks!
@electronicsNmore
4 жыл бұрын
There are other things that have high inrush, that was just a good example. :-)
@NETBotic
4 жыл бұрын
@@electronicsNmore excellent example
@Lumbeelegend
3 жыл бұрын
I'm off grid, and was looking for a solution to stop my window unit AC, (~1300w) from tripping my 5Kw inverter/charge controller. The in-rush is making it impossible to run it, even though I run my water heater on it (resistive vs inductive, as you stated). Hopefully this will work. I may build a few of these, lol. Thank you so much.
@johnq8792
3 жыл бұрын
RV uses fridge or AC which the inverter can't handle, and the commercial unit for this problem is $300.- this $1 fix is a way out, and thank you for this.
@Vigo327
3 жыл бұрын
@@Lumbeelegend Did you try yet? Very curious..
@impressusa
2 жыл бұрын
I've read through as many of the comments as I could and did not find this subject addressed; apologies if its buried further down the line. I would like to use this directly in my shop on 120V house current where my table saw sometimes trips the 15A breaker. This has been the case ever since I bought the table saw a few years ago and it's something I just deal with. If this could alleviate the inrush current that trips the breaker then, AWESOME!! Really enjoyed the video. Clear, concise and your voice is very professional.
@stevef8993
4 жыл бұрын
Just used those on a project at work. The common name for the device is a thermistor. Nice video.
@electronicsNmore
4 жыл бұрын
Correct. Thanks for watching Steve!
@idicalidical5343
4 жыл бұрын
Good work, I looked for a super cheapie inverter with built-in limiter without success, and settled on a capacitor setup which has been inconsistent as success depended on the particular load. So I'll give this a go.
@electronicsNmore
4 жыл бұрын
If you get the right ICL value, it works great. Thanks for watching!
@jregamey
2 жыл бұрын
I had my inverter replaced. It ended up being a smaller unit but it has soft start. So great. It could do better then my 4000 watt inverter
@fortwoods
3 жыл бұрын
Wow this is amazing and thanks for including the link to the data sheet. There are 15 and 20 amp ones as well. Awesome.
@electronicsNmore
3 жыл бұрын
Glad you enjoyed the video! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others on social networking sites. Thank you kzitem.infoplaylists
@KG-wh8yv
2 жыл бұрын
Well done and great explanation ! This will work for my 2000W BESTEK Inverter tripping running a 200 watt Fridge when the power is out. Btw, your explanation at the end about why shouldn't wire them in parallel exactly explains what happened to the person on an RV website that said his setup exploded when he plugged it in.
@button-puncher
Жыл бұрын
Great video! Thanks for the idea. Personally, I'm going to use a metal box and using a barrier strip for the connections. Putting these in a plastic box is just asking for trouble.
@remingtontreich9986
Ай бұрын
Thank you very much. You just saved me from buying a new generator.
@vevenaneathna
Ай бұрын
you can also use a solid state relay coz the optocoupler has to start at the 0 cross point of the sine wave. not sure what would cause more parasitic resistance when running.
@Allenw154
Жыл бұрын
If you’re near a Home Depot, you can setup an excellent box cheap. Get a 2 gang square metal box, a toggle switch, a duplex outlet, and a square box cover with toggle/duplex holes. Sleek and secure!
@david.vieiraocurioso4917
Ай бұрын
Its Very helpfull. Thanks you!
@anthonyalleyne8724
Жыл бұрын
Great video! Instead I used one sl32 10015 and it worked perfectly!! Thanks.
@electronicsNmore
Жыл бұрын
Glad it helped Anthony! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others. Thanks kzitem.infoplaylists
@davidyummus6259
10 ай бұрын
So, a 1 OHM 20amp Thermistor would work fine ?
@Ewolk89
4 жыл бұрын
Loved the video! Thank you! So what you really have to do is break the Hot line and add the components, switch and box. The other lines can stay intact.
@electronicsNmore
4 жыл бұрын
Yes. Only add to the hot AC line.
@rogergregory5981
4 жыл бұрын
Nice and very useful , In the uk If you have trouble with 110 volt site transformers tripping circuit breaker's when you plug the in /switch then you can get round this by plugging in your power tool to the trans former first then switch on power tool , then switch on the transformer this can limit inrush to the transformer and prevent the circuit breaker tripping
@electronicsNmore
4 жыл бұрын
Interesting workaround! Thanks for watching
@budpark7790
2 жыл бұрын
I added a normally-closed, momentary-action shorting switch across the NTC on my table saw. I labeled the new switch "soft start" and "run" and mounted it next next to the on-off switch. When starting on utility power where soft-start isn't needed, I simply turn on the power switch and the NTC isn't in the circuit, being shorted by "start" switch. When starting on battery/inverter power, I first activate the "start" switch, putting the NTC in the circuit before turning on the power switch. As soon as the saw comes up to speed I release the "start" switch back to "run", again shorting the NTC. This allows the NTC to begin cooling while the motor is running and provides for more frequent starts. I wonder if it might also increase the life of the NTC by significantly reducing the time it is in use?
@stratocasterblue
2 жыл бұрын
Is this the reason for shorting one of the thyristors in his circuit, he never says why he put the switch in, it must be like you explain it to allow for cooling to provide more frequent starts, because why not just leave them in series without a switch to give you 10 ohm resistance a 50 volt drop every time you start it, strange he never explains that.
@teku3985
3 жыл бұрын
This is a useful video for a quick and cheap soft starter for preventing inrush currents in devices. However, you should design an updated version of the circuit. While this design works, and works well, there is one fatal flaw. If you unplug the load and plug it back in or switch the load on and off it draws the same inrush current we are trying to prevent.
@electronicsNmore
3 жыл бұрын
This method isn't recommended for rapid switching ON/OFF of appliances/devices.
@CraigHesling
Жыл бұрын
Great tip! Have you considered adding another switch position to bypass both in-rush limiters, once startup is complete?
@lenturnbow8038
Жыл бұрын
Already done. Each thermistor drops to about 60 milliohms shortly after power is applied. For a 6 A load, the voltage drop for each is about 360 mV.
@pulesjet
4 жыл бұрын
Good Stuff from you Sir. Easy and Practical. Think I will build one into a small pig tail extension cord.
@electronicsNmore
4 жыл бұрын
Glad you enjoyed the video
@freeradical431
2 жыл бұрын
Where were you ten years ago when I went off grid? lol I just got a new water pump 12 amps that wont start off my Cotek sk1500. If this will work on a capacitor start motor its gonna be a big help!
@flash001USA
4 жыл бұрын
Couple of McQuestions: Once the threshold temperature is reached and the resistance drops does it hold that resistance as long as the load is still powered up? In other words does it stay latched in it's low resistance state once it's activated even when the current demand drops once the inductive load has started? I ask this because once the resistance is triggered low then the voltage drop across the Inrush Limiter will fall too so it would naturally cool down.
@electronicsNmore
4 жыл бұрын
Yes. As long as the load is applied, the low level of resistance will remain. The ICL will be fairly hot, but it's normal. You cannot rapidly cycle loads on and off using the ICL. You must wait 30 secs to 1 minute. Thanks for watching!
@pepeshopping
4 жыл бұрын
flash001USA Google has the answer.
@andrewferg8737
4 жыл бұрын
You can add a temperature sensing circuit to bypass the inrush limiter once it heats up.
@electronicsNmore
4 жыл бұрын
@Andrew Ferg Not necessary because the resistance drops to a very low level. Thanks for watching!
@charlesrichards5389
3 жыл бұрын
@@andrewferg8737 Not a bad idea. Inrush limiters do wear out. In fact, they are often the only part that wears out on pool chlorinator control boards.
@dwash595
7 ай бұрын
Great video. I have a project for it already! Three actually. Thanks!!!
@JasonCarmichael
3 жыл бұрын
Sure beats the heck out of paying $140 for someone else's soft starter! Thanks!
@electronicsNmore
3 жыл бұрын
There are cheaper soft starters sold, but this is as cheap as you'll get. :-) Be sure to look over my video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others on social networking sites. Thanks kzitem.infoplaylists
@OgBooder302
2 жыл бұрын
Where can i find them?
@JasonCarmichael
2 жыл бұрын
@@OgBooder302 links are in the discription
@raphola1
2 жыл бұрын
This is good education. Thank you.
@raybrown9655
28 күн бұрын
can you make a soft start to be used on RV a/c (DOMETIC) on 5th wheel in order to use a small 2000 gen to run a/c
@jimm2442
2 жыл бұрын
Fantastic! So glad I found you. Thank you!
@electronicsNmore
2 жыл бұрын
You're welcome!
@alexvonbosse5090
4 жыл бұрын
Very good information! Thanks for sharing!
@electronicsNmore
4 жыл бұрын
Thanks, and you're welcome! Helpful videos like this are only worthwhile to make if viewers take one minute of their time to share the video link with others.
@pfoxhound
Жыл бұрын
Very nice 👍🏿, can you please make one for air conditioner compressor, because if air conditioner doesn't start and continue to work immediately, than the elements will get hot fast and there will be no soft start for the compressor.
@jamesallen6007
3 жыл бұрын
Simply put. Many thanks.🇬🇧😷
@electronicsNmore
3 жыл бұрын
Glad you enjoyed it James! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others on social networking sites. Thank you kzitem.infoplaylists
@riloariichoariicho884
4 жыл бұрын
I like this idea.it's so helpful to me
@electronicsNmore
4 жыл бұрын
Great to hear!
@davidbivens2246
2 жыл бұрын
I NEED HELP…. I have an air conditioner 5.9 amps running. 115v @ 60 hz. My inverter is 1000 watts. The inverter is overloaded 9 out of ten times I turn the a/c on with it. Which thermistor do I need?
@markrigneymd6570
4 жыл бұрын
I am a firm believer in Occam's razor!
@anonymous.369
Ай бұрын
Great video, thank you. Can you do one for 50 amp 240v 4 wire split phase grnerator/inverter. Thx.
@oldmgbs2
4 жыл бұрын
Very handy device, thanks.
@electronicsNmore
4 жыл бұрын
You're welcome Steve! Be sure to share. Thank you
@jp040759
4 жыл бұрын
Good simple solution!!!!
@electronicsNmore
4 жыл бұрын
Yes. It's very handy to have around in the event you have an inrush problem. Thanks for watching!
@benkanobe7500
2 жыл бұрын
Amazing! Thank You, Thank You, Thank You! I am going to make one this weekend. I think using a metal box would dissipate heat better (or would it?).
@timothydelossantos3622
3 жыл бұрын
Can i use this with an air-conditioning non inverter, will this soft start the compressor every time it kicks on?
@jrm4408
9 ай бұрын
I would like to make one of these for an off grid cabin I have. It has a fairly new Best Buy/Insigina 9.9 cu ft fridge/freezer that lists power consumption of 160W at 1.4A. I have a 12v 2000W inverter connected to 2 banks of GC2 6V batteries in series, so 2 pairs of 6V's on a battery switch so I can switch from bank 1, 2, or tie both together. You'd think that would be enough to start the fridge under any circumstances, but it doesn't. When one bank gets on the low side but still far from the end of its cycle, the fridge starting up will trip the low power alarm on the inverter and it won't reset itself (all power cables are correctly sized, probably overly large). If I flip the battery switch briefly to the other bank then back again, the inverter will be happy, quit beeping and the fridge will run until it shuts off, and the cycle repeats. Question is - do you think the setup in your video would be sufficient for this fridge, or should I be re-sizing the components and if so how do I know what size?
@jrm4408
8 ай бұрын
I built this and tried it out but it didn't seem to solve the problem and the inverter still trips to under voltage. The fridge (1.4 running amps) is the only thing I'm using this for. Should I be using smaller inrush current limiter like a 5D-11 rated for 4A continuous?
@marksr49341
Жыл бұрын
Great, thank you.
@Olavotemrazaodenovo
4 жыл бұрын
Excellent idea.
@electronicsNmore
4 жыл бұрын
Glad you liked it! Be sure to share the video link. Thank you
@graceho99
4 жыл бұрын
Great information. It would work even better when combined with power factor boost capacitor(s).
@electronicsNmore
4 жыл бұрын
Glad you enjoyed the video! Capacitors do come in handy. :-) Be sure to share. Thanks
@glasser2819
2 жыл бұрын
smart man... and cheap too 👍
@techs5564
4 жыл бұрын
great trick.
@electronicsNmore
4 жыл бұрын
Thanks for watching! Please share the video.
@AlanCanon2222
2 жыл бұрын
A thought on using this circuit to power a room air conditioner (I'm thinking 450 W, 115 VAC, 5000 BTU). Considering also what others here have suggested (power factor capacitor, and a timed relay), etc. My thought is that the air conditioner has two motors in it, the fan and the compressor. So should I actually open up the air conditioner and install two separate instances of this DIY soft starter, one on the fan motor, and one on the compressor motor, both with independent inrush limiters, capacitors, and relays? That way the fan and compressor loads are each separately buffered. What I'm worried about is that the fan will run continuously (keeping the inrush current limiter hot and therefore out of action), the compressor will turn off, then on again, and the inrush current limiter will not be active. Having two separate soft starters would seem to solve that problem.
@skipwilson5086
Жыл бұрын
I just found this video this morning, already watched it two or three times and copied the adderess so I could share it with my buddy down in Louisiana, any way I'm wondering if you could do one or at least answer the question about a single phase 10 Hp motor that keeps throwing my inverter into safe mode. I've got an 18K inverter that drives the motor, but it still needs a soft start, Any help would be sincerely appreciated.
@ThePreyMantas
4 жыл бұрын
Very useful. Another great tip eNm! Keep'em coming!
@electronicsNmore
4 жыл бұрын
As long as people share, they'll keep coming. 😀 Thanks for watching!
@ThePreyMantas
4 жыл бұрын
@@electronicsNmore What do you think about these Graphene Module Packs?
@mega-hb4re
Жыл бұрын
You didn’t need to put a switch , just have the resistors straight thru the hot line
@rjl110919581
4 жыл бұрын
thank you for detail video
@electronicsNmore
4 жыл бұрын
You're welcome Rob! Please share the video link with others. Thank you
@abidchaudhary3439
5 ай бұрын
Thank you so much❤
@electronicsNmore
5 ай бұрын
You're welcome! Be sure to check out my extensive video playlists for many other videos of interest to you and share. Thanks
@robindas1207
4 жыл бұрын
sweet! nice demo
@electronicsNmore
4 жыл бұрын
Glad you enjoyed it! Be sure to check out my wide range of videos for many other videos of interest to you, and most importantly share my video links with many others. Thanks Robin! kzitem.infoc/playlists
@y1hardtop
4 жыл бұрын
Fantastic tip!!
@electronicsNmore
4 жыл бұрын
Glad you enjoyed the video!
@jws3925
7 ай бұрын
Nice idea! I am going to try this. Question: What is the difference between these in rush limiters and a resistor, in this case like a 5 ohm, 100watt resister? I am using a resistor in series for a few seconds between a battery bank and an inverter prior to hooking up the last cable to the inverter to prevent the spark I would incur due to the in rush current which is caused by the charging up of the internal capacitors of the inverter. I know one is a DC circuit and one an AC circuit so that is one difference. I don't know if this the reason for these in rush current limiters vs just a resistor. Do they both work the same? What does the 15% designation mean in the specifications of the limiter? I see there are other limiters with different specs such as one rated for 20 amps, 1 ohm resistance and 20%? I want to start an electric motor that after startup will draw 6 amps but, as you know, it draws about 3x that on startup. Will your idea work for me and, if so, what size in rush limiter should I be looking at. Thanks so much.
@liquidrockaquatics3900
3 жыл бұрын
Interesting. Would you couple this with a capacitor for greater effect?
@cmh-re
Жыл бұрын
If you want to know how this works, its simple. at startup motors act just like resistors whit very low rating, so following ohm's law at rated voltage they let X current go across them. by adding an ntc in series you are just adding a series resistor that's going to lower the voltage reaching the motor. for example if it lets half voltage reach the motor, the current going across the motor will be X/2. as the component heats up the amount of voltage acros the motor increases, while the motor rotating speed is inversely proportional to motor current. hence you have removed the startup spike. pay attention that a large enough motor could not start if it doesnt receive enough current. also modern fridges whit electronics inside will also fail to start due to the detection of a low voltage on the plug
@ahmadmughal2893
3 жыл бұрын
Great information
@electronicsNmore
3 жыл бұрын
Glad you liked it
@dig1035
4 жыл бұрын
Very cool vid, thanks!
@electronicsNmore
4 жыл бұрын
Glad you enjoyed it! Please share the link. Thank you
@carlhartman2818
3 жыл бұрын
Shop around for the inrush current limiters. Mouser sells the exact part number for $1.80 in single quantities up to 9, with 10 or more the price drops to 1.64 each. Amazon gets $14.99 for a package of two.
@electronicsNmore
3 жыл бұрын
Now add in the shipping cost for Mouser. :-)
@carlhartman2818
3 жыл бұрын
@@electronicsNmore $7.99 for UPS Ground.
@electronicsNmore
3 жыл бұрын
@@carlhartman2818 So you're not saving too much, and with Amazon Prime, you'll get it fast.
@carlhartman2818
3 жыл бұрын
Hey, I'm not being snarky. I like your concept and I plan on building several of these for myself and for friends. In any kind of quantity, Mouser is still a better source. Sometimes it pays to shop around in spite of the convenience of Amazon and in spite of affiliate links that you may have with them.
@SolarEngineering
4 жыл бұрын
great video! thank you.
@electronicsNmore
4 жыл бұрын
Glad you liked it! Be sure to look over my extensive video playlists below for many other videos of interest to you, and share links to my videos with many others on social networking sites. Thank you kzitem.infoplaylists
@davidyummus6259
10 ай бұрын
So the Limiters are 12 amps each,... Does that mean if you only need to start a smaller appliance of under 12 amps, you would just switch your box to "Low" to use just one ?... Could you not use a switch to have it wired to use both Limiters all the time ? Thanks for the video.
@kc4cvh
3 жыл бұрын
This may be a good solution for universal or shaded-pole motors, but I expect a starter for my 2 hp submersible well pump will take another form.
@HR-rt9nh
4 ай бұрын
can you attach a heat sink directly to it? or does it need to get hot to work and a heat sink would prevent it from working correctly
@ScinnerNo1
4 жыл бұрын
Thx for the video. I have a question. Let's say I wanted to power my refridgerator with your inverter, how much power will those two buggers dissipate in heat? And also could you bypass them when the fridge have started or are they needed every time the compressor starts?
@electronicsNmore
4 жыл бұрын
You need to choose the correct size ICL for the load. They can be bypassed if desired after start-up. Thanks for watching! www.ametherm.com/inrush-current/selecting-an-inrush-current-limiter.html
@justinmas299
5 ай бұрын
Cool thing, gonna make it and see
@stanwinston7199
2 жыл бұрын
Would I put the thermistors on both L1 and L2 for a 240V submersible 1.5HP 4" pump? Normal amperage on both legs is 11.5 A, so am thinking that I'd be able to mimic exactly what you have, but put 2 on each leg. Is that correct?
@MoritzvonSchweinitz
Жыл бұрын
I would like to use an inrush limiter like this for my hydropneumatic pump that has a cycle time of aprox. 20 seconds. How quickly do these NTC thermistors warm up and cool down? Something tells me that this elegant solution wouldn't work for a load that cycles 20 seconds on and 20 seconds off?
@OkeeeDokey
Жыл бұрын
Can you design a device that uses a soft start for home heatpump and use a car as a generator?
@emanwols8219
3 жыл бұрын
Thanks for video. exactly what i was looking for. really good info. i am having trouble selecting which NTC is appropriate for a 300watt inverter which will be powering a 200watt PTC ceramic steamer only. I am thinking i need an NTC that can handle 20 amps . thanks
@electronicsNmore
3 жыл бұрын
If the inverter is only 300w, then 20A is overkill.
@DIYwithBatteries
4 жыл бұрын
That looks pretty cool🤓 sir.
@electronicsNmore
4 жыл бұрын
Thanks for watching! Be sure to share the link.
@DIYwithBatteries
4 жыл бұрын
@@electronicsNmore yes i do sir 😊
@whitefreeman5798
Жыл бұрын
does this do the same thing as the soft start products sold for air conditioners that are 300 or more dollars
@business_goose6070
4 жыл бұрын
A capacitor rated correctly and put in parallel with the load would be able to output the amount of current needed for a short time , but would be more complex to create.
@electronicsNmore
4 жыл бұрын
You can limit inrush current by using a high value oil filled run capacitor (200-400uF) in series with the hot wire to the load. I've done it many times. Works great.. Thanks for watching! Be sure to share the video link with others so helpful videos like this are worthwhile to make. Way too many channels on YT that don't help others or educate others, are getting way too many views.
@business_goose6070
4 жыл бұрын
@@electronicsNmore thanks for the help
@manletopia4801
2 жыл бұрын
can it power a minifridge from a 100 watt inverter or at least tell me what a mini fridge draws on it?
@sahilsharmadec25
4 жыл бұрын
easy and logicable
@electronicsNmore
4 жыл бұрын
Glad you enjoyed the video! Be sure to look over my extensive video playlists below for many other videos of interest to you, use supplied Amazon links to support my channel when making purchases(No added cost to you), and share links to my videos with many others on social networking sites. Thank you kzitem.infoplaylists
@Edmorbus
4 жыл бұрын
Thanks for sharing
@electronicsNmore
4 жыл бұрын
Thanks for watching Ed! No idea why, but your comments always end up in spam. I need to approve them. Weird.
@frankl1955
4 жыл бұрын
That 2.7 looks like the same engine as in my 04 Optima. Not a bad engine but plugs and alternator can be a real pain.
@electronicsNmore
4 жыл бұрын
Same engine. Yes, you need to remove the intake plenum to replace the plugs near the firewall. I recently uploaded a video showing the full process on how to replace the alternator. Be sure to watch. Thanks!
@frankl1955
4 жыл бұрын
I will, I haven’t done it yet but I know what a pain. I got the repair books from the manfactuerer when I bought the car and when my alternator went all it told me for a V6 was “Good Luck”. Turns out the ball joint, tie rod cv axle, and motor mount is involved. Some say you can get it from the top but not without a lot of top side disassembly but it don’t look any easier.
@markrigneymd6570
4 жыл бұрын
I just saw your previous response to the same 220V question and I think my thinking was correct (just l got lucky with a tiny bit of self education) but I choose not to go with an "I think" when dealing with A/C. Still interested in you thoughts on the other more complex methods?
@graemeboese1405
2 жыл бұрын
Great video I have a inverter fridge should I mount this on the power to the compressor motor
@stanwinston7199
2 жыл бұрын
what is the purpose of the "on/off switch" ?? If you wanted to limit the initial power every time the load was on, wouldn't you want it always open?
@electronicsNmore
2 жыл бұрын
Pretty sure that was mentioned in the video.
@MiamiWebDesign
3 жыл бұрын
Awesome work. Commercially available softstarters for window AC units cost around $300. Can this be used to turn on a small fridge or window AC with a generator or inverter? Thanks for this video!
@electronicsNmore
3 жыл бұрын
If you size the inrush limiter properly, it can help you start up the fridge/AC. If you don't size it correctly, then the compressor may not start up.
@MiamiWebDesign
3 жыл бұрын
Thanks alot
@energydreamer5347
Жыл бұрын
@@electronicsNmore - is there a size limit to build this device? Is there a cutoff on scaling it up? Searching for a Soft Starter for 10HP AC Motor. Any feedback?
@ambitious44
3 жыл бұрын
hi , thanks for the great explanation. still one point : if we power Off and quickly try to power on the appliance, a good chance the thermal resistor still hot and thus didn't present high resistance so It will not work. I ve not tested it myself but I am curious if someone have experienced that exact very scenario I am describing here
@electronicsNmore
3 жыл бұрын
You cannot power on and off quickly. You need to wait at least 30 seconds.
@curtchase3730
3 жыл бұрын
Nice tutorial. You failed to mention the drawback of this method.....Repeated use. If you use a power tool for instance, you may have tool on and off many times during a job, like cutting 2x4's. The thermistor would have to cool really fast between starts or it will be supplied with full inrush current again, right?
@electronicsNmore
3 жыл бұрын
Correct, this method isn't ideal for fast ON/OFF switching. You need 30 seconds minimum wait time
@SalC1
2 жыл бұрын
@@electronicsNmore I have a portable log splitter that I want to run with this. I ordered the inrush current limiter and I plan to thermal epoxy it to the inside of an aluminum junction box to remedy this issue. Hopefully it works!
@danic9523
Жыл бұрын
If I build one for use with a small Residential refrigerator (with compressor) that will run 24/7off an inverter--will I need to add a capacitor somewhere? If yes, where would I place it if it had to be soldered. Also, is the same build applicable to a 30A unit if I buy 2 X 10 Ohm resistors?
@klausbrinck2137
2 жыл бұрын
I know "ground", but aren´t the other 2 cables both "hot" and equal to each other, bringing 110V AC each ??? Please explain...
@Skipperj
3 жыл бұрын
Thanks great stuff! Now,do you have a box for a 240v soft start, for a 4 ton ac?
@electronicsNmore
3 жыл бұрын
I would try using a hard start kit for your AC condensing unit.
@edwinsabado2385
Жыл бұрын
how about 220 v. what is the value to use sg333?
@zackvizeman5329
2 жыл бұрын
Great video much appreciated. Question: I am trying to lower the combat of a compressor with a rated LRA of 122 amp! The reason I need to do that is that its FLA is only 24 amp and I wonder if one could use a 30 AMP breaker instead of the specified 40 amp. Can I use your trick for that purpose? I greatly appreciate your response!
@button-puncher
Жыл бұрын
I was wondering the same thing. I'm guessing that Digikey or Mouser would have monster limiters that could handle the current. The only thing that I'd do is add a timer relay and a solenoid valve to the unloader line on the compressor. So that when you apply power it keeps the unloader pipe open for a few seconds until the compressor is up to speed. The close the solenoid to build pressure. You'd also want a relay to short the current limiter once the compressor is running. That way the current limiter won't burn up.
@ademgultekin9115
3 жыл бұрын
kutu içindeki diğer iki kabloyu neden kesip bağladınız acaba direkt bağlantı olamaz mı?
@bolmarie
4 жыл бұрын
Amazing solution. Thanks. Questions 1) Why did you install that switch? Why not always have the two SG333 in the circuit? 2) Will this harm non-inductive loads such as computer devices, TV, or cell phones powered by the inverter thru that soft starter end female plug?
@electronicsNmore
4 жыл бұрын
The switch allows me to choose between two levels of starting resistance. No reason to use what's shown for non-inductive loads. Thanks for watching
@stratocasterblue
2 жыл бұрын
@@electronicsNmore Why do you want two levels of starting resistance though, Why not just always use both in series to make 10 ohms and always have the lowest the inrush current making it easier on the inverter and the motor.
@EngineerMikeF
4 жыл бұрын
eNm- could you also post a link to the schematics for your projects in the description? Saves pause-&-scrawl process. Thanks a always
@electronicsNmore
4 жыл бұрын
Schematics/diagrams that are considered "simple", are only shown in the video. More complex circuits shown on my channel have links. Thanks for watching!
@jasonlucero1523
2 жыл бұрын
Hello. Great video! I would like to build a similar soft start for a miter saw. I would like to build it for 25 amps. Would this work? Ametherm SL32 1R030 (Pack of 2) NTC Thermistor, SG379 HVAC, Inrush Current Limiter 1 Ohm Ohm ±20% 1.18" (30mm), or what do you recommend? Thank you sooooo much!
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