Adjustable precision voltage source

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< Power Electronic ~ Adjustable precision voltage source

eric

Posted: Fri Sep 01, 2006 6:15 pm Post subject: Adjustable precision voltage source

Site Admin Joined: 01 Jan 1970 Posts: 311

A Burr-Brown application
Many applications require a precision voltage source which can be
adjusted through zero to both positive and negative output voltage.
An example is a bipolar power supply. Perhaps the most obvious
implementation of a bipolar voltage source would be to use a
bipolar voltage reference. However, a simpler solution is to use a
single voltage reference and a precision unity-gain inverting amplifier.
If a precision difference amplifier is used for the unity-gain
inverting amplifier, the circuit requires just two chips and a potentiometer.

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