Voltage Doubler vs. Voltage Tripler vs. Voltage Quadrupler

voltage multiplier
voltage doubler
voltage tripler
voltage quadrupler
diode

This article compares voltage doublers, voltage triplers, and voltage quadruplers, outlining the differences between these voltage multiplier circuits.

What is a Voltage Multiplier?

A voltage multiplier is an electronic circuit that takes an AC waveform as input with a peak voltage (Vm) and produces a DC voltage output. The key feature of a voltage multiplier is that the output DC voltage is an integer multiple of the peak AC input voltage (Vm).

Voltage Doubler

Circuit and Operation

Voltage Doubler

Figure 1 illustrates a typical voltage doubler circuit. As you can see, the input is an AC signal, and the output is a DC voltage. The primary function of this circuit is to approximately double the peak input voltage.

Output Voltage

The output DC voltage (Vout) is approximately equal to 2 * Vm, where Vm is the peak voltage of the AC input.

Voltage Tripler and Voltage Quadrupler

Circuit and Operation

Voltage Tripler,Voltage Quadrupler

Figure 2 shows the circuits for both a voltage tripler and a voltage quadrupler. These circuits build upon the principles of the voltage doubler to achieve higher output voltages.

Output Voltages

  • Voltage Tripler: A DC voltage of approximately 3 * Vm can be obtained across capacitors C3 and C1.
  • Voltage Quadrupler: A DC voltage of approximately 4 * Vm can be obtained across capacitors C4 and C2.

In essence, these circuits use a combination of diodes and capacitors to progressively charge the capacitors and achieve the desired multiplication of voltage.

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Flow Measurement Methods and Instruments

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