12V DC Voltage Doubler Circuit

This is the circuit diagram of DC voltage doubler / DC converter. The circuit will convert 12VDC power supply to become a 24VDC at  and 18VDC. Almost any PNP or NPN power transistors should be work for this circuit.

Parts list:

  • C1 and C2: 50μF/25V
  • Q1: TIP 29, TIP120, 2N4922, TIP61, TIP110, or 2N4921
  • Q2: TIP30, TIP125, 2N4919, TIP62, TIP115, or 2N4918
  • U1: NE 555 timer


Power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

Tags: 12v dc converter 12v voltage doubler dc converter circuit DC Voltage Doubler voltage doubler schematic

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