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Self-regulated cooling system for switching power supplies using parasitic effects of switching

  • US 6,775,162 B2
  • Filed: 12/11/2001
  • Issued: 08/10/2004
  • Est. Priority Date: 12/11/2001
  • Status: Expired due to Fees
First Claim
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1. A cooling system for a switching power supply, said power supply having a primary circuit comprising a semiconductor switch, wherein said cooling system comprises:

  • (a) a capacitor and diode in series, together connected in parallel with said switch;

    (b) a power converter connected in parallel with said capacitor; and

    (c) a cooling element powered by said power converter for cooling said switching power supply, wherein the voltage of said cooling element varies automatically in proportion to the current provided to said primary circuit.

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