The function of a voltage multiplier circuit is to produce a DC output voltage that is higher than the AC peak input voltage, often used in applications requiring high voltage but low current, such as ¹ ² ³:
- Cathode ray tubes (CRTs) in TVs, computers, and oscilloscopes
- X-ray systems and lasers
- Ion pumps and electrostatic systems
- Photomultiplier tubes and travelling wave tubes (TWTs)
- Copy machines and other high-voltage, low-current devices
These circuits achieve this multiplication through a series of diodes and capacitors that charge and discharge in a specific sequence, producing a DC output that is two or more times the AC peak input voltage.
