Precision AC/DC Converters

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Although semiconductor diodes available today are close to ideal” devices, they have severe limitations in low level applications. Silicon diodes have a 0.6V threshold which must be overcome before appreciable conduction occurs. By placing the diode in the feedback loop of an operational amplifier, the threshold voltage is divided by the open loop gain of the amplifier.

Read More source:
http://www.national.com/ms/LB/LB-8.pdf

This entry was posted on Tuesday, October 30th, 2007 at 7:53 pm and is filed under Converter Circuit, Power supply. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.