Simple SCR oscillator

Posted on May 29, 2012

Silicon controlled rectifiers (SCR) can easily oscillate if there is an inductor (a speaker coil in this case) which gives just enough extra voltage to completely switch off the sustain current. In this way a new cycle may start and oscillations set in. It operates over a wide range of supply voltage and components values are not critical at all. Operational frequency in this circuit goes from 100Hz at 11V to 10KHz at 100V.

Simple SCR oscillator
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

New Circuits



Popular Circuits

synchronized sawtooth
Solar Cell Voltage Regulator
constant current Basic schematic help
portable solar lantern circuit uses 6
555 Timer Astable calculator for Astable Multivibrator Designing
Four channel RF remote control
Stereo Digital Camera Power-up Pulse Generator
Multiplicative DA converter IC inexpensive 8 DA circuit