Self oscillating relay and cap charger

127

02:09:55

Oscillating relay discharges through diode into charging capacitor. Will keep charging until power supply fails or capacitor fails

published 7 years ago

wyoelk

7 years ago

The relay, being mechanical will fail first of all. But, most important is that the circuit will operate the same way without the capacitors, diode or voltmeters as the settings of the relay cause it to open/close not the charge/discharge of the capacitor.

wyoelk

7 years ago

Maybe this circuit. http://everycircuit.com/circuit/5702230150742016

jpoulin0901

7 years ago

This is effectively what is known as an interrupter based boost converter. Voltage boosting circutry like this was once used to provide the large bias voltages needed in early vacuum tube radios.

jpoulin0901

7 years ago

Wyoelk: Actually any practical circuit would need to employ at least one capacitor to limit the frequency to a range in which the circuit is useful.

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