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step up voltage from 5v to 20v or above...

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abusabbath

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how to make voltage form PIC (5V) step up till 20V and above...
any suggestion what theory i want to use....
 

1. DC-DC converter with external inductor.
2. Charge pump with external capacitors.
 

can u explain...i dont understand it..plsss
 

see MICROCHIP

AN1047 - Buck-Boost LED Driver Using the PIC16F785 MCU
**broken link removed**

Understanding the boost topology
AN980 - Designing a Boost-Switching Regulator with the MCP1650
**broken link removed**
 

abusabbath said:
how to make voltage form PIC (5V) step up till 20V and above...
any suggestion what theory i want to use....
Click to expand...

Please make clear your concern, if I am not mistaken, you are paying attention to that how to drive circuit of 20V from the PIC at voltage of 5V, right?

nguyennam
 

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