Low frequency oscillator-flasher

Posted on Feb 20, 2013    8975

Electrolytic capacitors are unnecessary to generate a 1 cps frequency. As an scs triggers on, the 0.2 µ¥ commutating capacitor turns off the other one and charges its gate capacitor to a negative potential. The gate capacitor charges towards 24 volts through 20 retriggering its scs. Battery power is delivered to the load with 88% efficiency.

Low frequency oscillator-flasher
Click here to download the full size of the above Circuit.

The 20 resistors can be varied to change prf or duty factor.

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