What is voltage doubler circuit?
A voltage doubler is an electronic circuit which charges capacitors from the input voltage and switches these charges in such a way that, in the ideal case, exactly twice the voltage is produced at the output as at its input. Voltage doublers are a variety of voltage multiplier circuit.
Which circuit can be used as a voltage doubler?
The Voltage Doubler. As its name suggests, a Voltage Doubler is a voltage multiplier circuit which has a voltage multiplication factor of two. The circuit consists of only two diodes, two capacitors and an oscillating AC input voltage (a PWM waveform could also be used).
How are voltage doublers used in a circuit?
The circuit is formed by an oscillating AC input voltage, two capacitors, and two diodes. The input voltage is AC, and the output is DC voltage with twice the peak value of the input AC voltage. In some applications, heavy and expensive step-up transformers can be replaced by voltage doublers.
Can a voltage doubler be a higher order multiplier?
Voltage doublers are a variety of voltage multiplier circuit. Many, but not all, voltage doubler circuits can be viewed as a single stage of a higher order multiplier: cascading identical stages together achieves a greater voltage multiplication. Figure 1. Villard circuit
How to double the voltage in a switched capacitor circuit?
Switched capacitor circuits. Figure 5. Switched capacitor voltage doubler achieved by simply switching charged capacitors from parallel to series. It is possible to use the simple diode-capacitor circuits described above to double the voltage of a DC source by preceding the voltage doubler with a chopper circuit.
How are voltage multipliers used in a circuit?
Voltage multipliers can be stacked together to triple a voltage, quadruple a voltage, and so on. A more common and sophisticated voltage doubler circuit is the full-wave voltage doubler, or Delon circuit, which uses two diodes and two capacitors to provide a doubled DC voltage output.