LM78S40 Switching Voltage Regulator

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A D.C. power supply is usually regulated by some type of feedback circuit that senses any change in the D.C. output and develops a control signal to compensate for this change. This feedback maintains an essentially constant output. In a monolithic regulator, the output voltage is sampled and a high-gain differential amplifier compares a portion of this voltage with a reference voltage.

Read more source:
http://www.national.com/an/AN/AN-711.pdf
Thank you.

This entry was posted on Thursday, December 27th, 2007 at 5:01 pm and is filed under Power supply, switching 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.