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Electronics >> Schematics Depot >> Power

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To make them easier to find, the schematics on this page have been divided into sections. To jump right to a specific section, click on the appropriate link below.
[ power supplies | battery monitors | voltage doublers | voltage inverters ]
power supplies:
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5 volt power supply
this 5 volt power supply is powered from a standard US AC wall outlet.

12 volt power supply
this 12 volt power supply is powered from a standard US AC wall outlet.

multiple volt power supply
this multiple power supply is powered from a standard US AC wall outlet, and generates four commonly used voltages: +5v, -5v, +12v, and -12v.

battery power monitors:
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"high" or "low" voltage battery monitor
this battery monitors the power of your battery and lights an led when it is too low (configurable to light when battery power is high.)

12 volt battery monitor
this is a battery monitor for use on a 12 volt monitor. a single led lights up to warn you of a low battery.

LM3914 battery monitor
this sophisticated little battery monitor is based on the LM3914 IC. it features an array of leds which light up and extinguish according to the battery power. for use on 12 volt batteries.

voltage doublers:
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voltage doubler
this 5 volt power supply is powered from a standard US AC wall outlet.

voltage inverters:
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voltage inverters
this 5 volt power supply is powered from a standard US AC wall outlet.






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