Circuit Simulator - Voltage Doubler

Why Voltage Doubler?

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How to design a Voltage Doubler (electronic circuit)?

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Circuit Description:

This circuit uses some diodes and capacitors to generate 28 V from an 15 V input signal. The current from the input flows through the upper diode in one direction, charging the upper capacitor; the diode prevents the capacitor from being discharged when the input signal goes negative. The bottom diode/capacitor pair works the same way for the negative portion of the input cycle. -- Credits: Mr. Paul Falstad.





Mubarak said: (Sep 28, 2011)  
This circuit only works for higher voltages.. that is for greater than 10v.. if u check it for 1v.. it wont give higher voltage..

Anand said: (Nov 4, 2011)  
@Mubarak: Silicon diodes "open" at voltages between 0.6 and 0.8V. So both diodes will "eat" about 1.6V. If the input is below that threshold there will be nothing left to amplify.

@Shahid said: (Nov 17, 2013)  
Does input frequency have any effect on the voltage?

Kim said: (Dec 12, 2013)  
For any given cap size, input freq will alter current that can be taken out. Remember this is a charge pump, which can only dump one capacitor full of charge per cycle.

Gaurav said: (Dec 17, 2013)  
Does load resistance do have any effect on output voltage?

Patel Arun said: (Feb 1, 2014)  
What type input we must connect this ac or dc?

Surya said: (Mar 26, 2014)  
Which type of diodes and capacitors are used here?

Evelin said: (Oct 17, 2014)  
What will be the formula used for capacitor if the input is a DC supply?

Esset said: (Nov 6, 2014)  
What is the output voltage if the capacitors are remove?

Carlz said: (Dec 18, 2014)  
Any type of diodes will work in this circuit but it depends on switching speed., 1n4148 diode will work better.

Muhammad Ali said: (Sep 23, 2015)  
What kind of software is used and the accuracy rate?

Ugwuanyi Valentine said: (Oct 30, 2015)  
Will it work on DC to AC?

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