Charge Pump DC to DC Power Converters

Vee (negative supply) from PIC PWM by David Covick

Simple Transformer based charge pump

See also:

• http://romanblack.com/smps/conv.htm A cheap circuit to make +13v from a +5v supply. Useful for some types of FLASH memory which require a higher programming voltage.

Archive:

• List post "[EE]: How to build a cheap charge pump" 2 stage capacitor pump run from PIC PWM pin. See picture.
• List post "[EE]: How to build a cheap charge pump" Boost Switcher runs from PIC PWM output. Zenar regulation could be replaced with PIC A2D to vary PWM.