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This electronics video tutorial explains how to build a 12V DC power supply using a 220V AC power source, conventional diodes, zener diodes, capacitors, resistors, and a transformer. The step down transformer brings the 220V AC voltage to 13V AC. The conventional germanium diodes form a full wave bridge rectifier converting AC to DC. The zener diode acts a voltage regulator and the capacitor reduces ripple voltage and converts the pulsating DC wave into a smooth DC output. The series current limiting resistor reduces the surge current that flows through the diode when the capacitor is charging.

What Is a Diode?


How To Solve Diode Circuit Problems:


Diode Logic Gates - OR, NOR, AND, & NAND:


Clipper Circuits:


Clamper Circuits:


Half-Wave Rectifiers:


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Full-Wave Rectifiers:


Full-Wave Bridge Rectifiers:


Capacitor Voltage Booster Circuit:


Half Wave Voltage Doubler Circuit:


Full Wave Voltage Doubler Circuit:


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Voltage Multiplier Circuit:


Light Emitting Diodes:


Power Dissipation In LEDs & Diodes:


Final Exams and Video Playlists:


Full-Length Videos and Worksheets:


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12V Single Phase Transformer:
Zener Diodes:
Resistors:
Alligator Wires:
Supercapacitors:
1N4007 Diodes:

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