# 12 Volt Capacitor Power Supply

About 8566 readers of this Blog visited the transformer less power supply article posted and there are queries regarding the design of the circuit to power different types of gadgets. So one more circuit is posted here that can give 12 volt DC at 300 milli amperes current. This circuit uses AC capacitor to drop the AC power to generate 12 volt DC.

# Transformerless Power Supply

One of the major problems that is to be solved in an electronic circuit design is the production of low voltage DC power supply from AC to power the circuit. The conventional method is the use of a step-down transformer to reduce the 230 V AC to a desired level of low voltage AC. The most suitable and low cost method is the use of a Voltage Dropping Capacitor in series with the phase line.

# Transformerless Power Supply

One of the major problems that is to be solved in an electronic circuit design is the production of low voltage DC power supply from AC to power the circuit. The conventional method is the use of a step-down transformer to reduce the 230 V AC to a desired level of low voltage AC. The most suitable and low cost method is the use of a Voltage Dropping Capacitor in series with the phase line.

# Simple Transformer less Power Supply

This is the simplest version of a transformer less power supply to power low current devices. It can give 30 to 40 milli ampere current and 12 to 15 volt DC depending on the input voltage.

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# 12 Volt Capacitor Power Supply

About 560 readers of this Blog visited the transformer less power supply article posted and there are queries regarding the design of the circuit to power different types of gadgets. So one more circuit is posted here that can give 12 volt DC at 300 milli amperes current. This circuit uses AC capacitor to drop the AC power to generate 12 volt DC.

# Current in AC Capacitor

When a capacitor and a resistor are connected to AC lines, a constant current can be maintained through the resistor, so long as the Rectance of the capacitor is greater than the resistance of the resistor. The current flow depends on the value of the capacitor assuming that the input voltage is greater than the output voltage.

# Transformerless Power Supply

One of the major problems that is to be solved in an electronic circuit design is the production of low voltage DC power supply from AC to power the circuit. The conventional method is the use of a step-down transformer to reduce the 230 V AC to a desired level of low voltage AC. The most suitable and low cost method is the use of a Voltage Dropping Capacitor in series with the phase line.