Unijunction transistor working performance speed measurement circuit

Published:2012/12/5 21:30:00 Author:Ecco | Keyword: Unijunction transistor, working performance , speed measurement | From:SeekIC

Measured single-junction transistor VBT ( set: BT33) and R3, C2 form relaxation oscillator. When VBT gets conduction, transistor VT1 obtains bias current by the bias resistor R2 ( S1 is OFF, S2 is closed), the light - emitting diode H1 emits light. +10 V power supply charges for C2 by R3 and VD2. The voltmeter V measured voltage across C2 will rise over time, when the E terminal potential reaches peak voltage of VBT, the VBT's E to B1 will be automatically turned on.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Measuring_and_Test_Circuit/Unijunction_transistor_working_performance_speed_measurement_circuit.html

Print this Page | Comments | Reading(3)