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Charger circuit and PWM controller thereof

  • US 7,583,061 B2
  • Filed: 01/03/2007
  • Issued: 09/01/2009
  • Est. Priority Date: 06/16/2006
  • Status: Active Grant
First Claim
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1. A PWM controller, comprising the characteristic that a short circuit mode circuit has input ends connecting respectively and simultaneously to a power supply input end and an output end of an output driving circuit, and an oscillator which has a temperature compensation circuit which includes a medium value multi-transistor resistor of a negative temperature coefficient and a well resistor of a positive temperature coefficient.

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