![how to destructively test 2n3055 transistor how to destructively test 2n3055 transistor](https://i.ytimg.com/vi/kAnHfTnCGcQ/maxresdefault.jpg)
Notice with the fake that (a) the logo isnt quite right, and (b) it uses different fonts (e.g. Both show virtually the same with multimeter diode check. This reduces the collector emitter resistance of Q2 and so the output voltage gets increased accordingly. Below is the known good transistor on the left and the suspect transistor on the right. Pictured is an ordinary 2N2222 NPN low voltage bi-polar switching transistor. When removing it from the circuit, always use a heat sink to protect the diode junctions from failure due to too much heat. This decrease of output voltage (Vout) makes V BE of Q2 to decrease. This Instructable is for testing a transistor after it has been removed from the circuit. When the output load increases, the output voltage (Vout) gets reduced.This decrease in V BE increases the collector emitter resistance of Q2 and so the output voltage (Vout) gets reduced accordingly. This increase in Vout decreases the base emitter voltage of Q2 because the zener diode D2 is operating in the breakdown region and the voltage across it is unchangeable. When ZD1 is 12V, the base voltage is also the 12 volts. In the same, the base voltage of transistor-Q1 is also a constant. To begin with, An electrical current flows through the resistor-R1 to limits current to the Zener diode. When the input voltage (output of the rectifier section) increases, the output voltage of the regulator (Vout) also increases. 12V 1A linear voltage regulator using 2n3055 transistor and Zener diode.The overall working of the circuit can be demonstrated by explaining two situations. Resistor R1 provides the base current for Q1 and also keeps the zener diode D2 in the active region. Transistor Q1 (2N 3054) and Q2 (2N 3055) form a darlington pair.
HOW TO DESTRUCTIVELY TEST 2N3055 TRANSISTOR SERIES
The circuit shown below is a basic series voltage regulator based on transistors.
![how to destructively test 2n3055 transistor how to destructively test 2n3055 transistor](https://www.industrial-electronics.com/images/tegtueae_8-1.jpg)
Additional series pass transistors have to be added to the 7805 based regulator circuit for improving their current capacity. You will find the forward voltage drop will be slightly lower on the base/emitter junction (in the order of about 0.01v). Conventional integrated series regulators like 7805 can only deliver up to 1A. transistors is that transistors test as 2 diodes back to back with the base as common. Such transistor voltage regulators are suitable for application where high output current is required. Regulated DC Power Supply using transistors.Ī low ripple regulated DC power supply designed based on transistors is shown here.