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Power Supplies: UPS
Last Updated on: Friday, July 18, 2008 11:33 AM

Power Supplies -- Main Page
 
Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Basic UPS:  (electronic diagram added 6/03)

Build a UPS for USB devices:  04/11/02 EDN Design Ideas  / (added 1/05)  Portable systems often include circuitry that derives power from an external source, such as USB. When  system disconnects from  USB supply, a battery takes over and supplies current via a dc/dc converter. A diode-OR connection (Figure 1) offers  easiest way to ensure that  supply voltage doesn't sag during this switchover to  battery. ...

Build a USB-based GPIB controller:  12/16/05  EDN Design Ideas  /  (added 11/06)  Roll-your-own USB-based instrumentation bus.

MOSFET  Circuit Ups Regulator's Output Current:  02/01/96 EDN-Design Ideas / (added 6/06)   -Use a current mirror and a power MOSFET to increase the output-current capability of an IC-voltage regulator….

PICREF-1: Uninterruptible Power Supply:  Microchip Application Note Published 28-Oct-05   (app note added 2/06)

Uninterruptible Power Supply:  Microchip Application Note Published 28-Oct-05   (app note added 2/06)

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