Be careful and take risks...
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Let's light a 12 volt LED strip from 230 volts without a transformer,
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Materials needed : -
1A Diode - 4
12v - 1w Zener Diode - 2
155pf 400v - 1
330k Resistor - 1
68 ohm Resistor -2
470uf 35v capacitor -1
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The main component of a Transformerless power supply circuit is Voltage dropping capacitor or X-rated capacitor, which are specially designed for AC mains. This X rated capacitor is connected in series of Phase line of AC, to drop the voltage. This type of Transformer less power supply is called Capacitor Power Supply.