The signal generator of changeable working frequency

Published:2011/7/21 0:30:00 Author:Borg | Keyword: signal generator, working frequency | From:SeekIC

The signal generator consists of the multi-resonance oscillator composed of T1 and T2, the constant current source is generated by T3 and T4. The current is regulated by potentiometer R2, the frequency upper limit and lower limit are regulated by R1 and R3 respectively. The voltage stabilizer D1 provides with a 10V stable voltage for the basic poles of T3 and T4, so the frequency can be regulated when the voltage is changing. The emitter resistors of R4, R5 and R3 can limit the maximum input current. The frequency range of the circuit is about 10~200kHz.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Signal_Processing/The_signal_generator_of_changeable_working_frequency.html

Print this Page | Comments | Reading(3)