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Analog photovoltaic power circuit

  • US 20080149167A1
  • Filed: 07/16/2007
  • Published: 06/26/2008
  • Est. Priority Date: 12/26/2006
  • Status: Abandoned Application
First Claim
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1. An analog photovoltaic power circuit, comprising:

  • a primary photovoltaic device group for receiving photo energy and generating an input voltage;

    a power stage for converting the input voltage to an output voltage;

    an optimum voltage point estimation circuit for estimating an optimum voltage point according to a ratio of the open circuit voltage of the primary photovoltaic device group; and

    an analog comparison and control circuit for controlling the conversion operation of the power stage according to a comparison between the optimum voltage point estimated by the optimum voltage point estimation circuit and the input voltage.

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