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230V Blinking LED
Attention:
This
Circuit is using 230V that is lethal. Please take
appropriate precautions !!
Introduction I
needed a pulsating light for a certain signaling.
Voltage was 230V. So I decided to make a simple
circuit, consisted of a LED diode, two capacitors,
two resistors, a diac and a diode.
Description
Activity of the circuit is extraordinarily simple.
The capacitor charges by the diode and the resistor.
When the voltage on the capacitor achieves 30V the
diac "releases" the electrical tension and the
capacitor empties thorough the diac, LED blinks.
Time base is dependent from the capacitor and the
resistor, which is in series with diode 1N4007.
Capacitor must be at least for 40V.
Schematic
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author:
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this circuit in PDF
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