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The zener diode can set a pretty reliable voltage as long as current is steady. Since a load will likely take too much current from a zener directly, the zener can instead set the voltage to a NPN bipolar junction transistor (BJT) emitter follower which will output about 0.6 volts less than the zener voltage.
#2n2222 #NPN #electronics
Негізгі бет Ғылым және технология Voltages of NPN BJT emitter follower improved zener voltage with 6 tenths volt drop circuit
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