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Negative Power Supply Schematics

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voltage inverter

voltage inverter

http://www.reconnsworld.com/power_voltinvert.html

Generating -5VDC from +5VDC

Generating -5VDC from +5VDC

http://margo.student.utwente.nl/el/misc/text_cir/f_asci2.htm#ASCIISCHEM_020

+9V and -9V from one battery!

+9V and -9V from one battery!

http://www.geofex.com/circuits/+9_to_-9.htm

Generating -5VDC from +5VDC

Generating -5VDC from +5VDC

simple capacitor pump circuit based on 555 chip

http://margo.student.utwente.nl/el/misc/text_cir/f_asci2.htm#ASCIISCHEM_020

Generating -5 Volts From a 9 Volt Battery

Generating -5 Volts From a 9 Volt Battery

http://ourworld.compuserve.com/homepages/Bill_Bowden/page10.htm#5volts.gif

Negative Voltage Generator

Negative Voltage Generator

http://www.armory.com/~rstevew/Public/PSUs/-vgen.html