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Fixed phase power controller with analog trigger

  • US 7,224,151 B2
  • Filed: 02/04/2005
  • Issued: 05/29/2007
  • Est. Priority Date: 02/04/2005
  • Status: Expired due to Fees
First Claim
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1. A fixed phase power controller that converts a line voltage to an RMS load voltage, the controller comprising:

  • line terminals for a line voltage and load terminals for a load voltage;

    a full wave bridge connected to said line and load terminals;

    a transistor switch connected to said bridge and that clips the load voltage;

    a DC source that is independent of a change in magnitude of the line voltage;

    a capacitor that has one terminal connected to said DC source and to said transistor switch to turn said transistor switch off and on at a first frequency that defines the RMS load voltage; and

    a reset circuit connected in parallel with said capacitor for resetting said capacitor to an initial state at a rate that corresponds to the first frequency.

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