High-precision average output current control scheme for critical interrupted and continuous current mode of power current converter

High-precision average output current control scheme for critical interrupted and continuous current mode of power current converter

  • CN 101,237,190 A
  • Filed: 01/25/2008
  • Published: 08/06/2008
  • Est. Priority Date: 01/25/2008
  • Status: Active Application
First Claim
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1. the high accuracy average output current control scheme that is used for the critical interrupted and continuous pattern of power power pack, it is characterized in that forming:

  • the reference source piece that produces predetermined control signal by following functional block, carry out computing according to different capacity power pack topological structure according to pre-defined algorithm and produce corresponding reference source calculation function piece with reference to control signal, the state variable of detection power power pack also is transformed into state-detection piece with the signal same form signal of reference source calculation function piece output with it, be used to detect from the difference of reference source calculation function piece and state-detection piece output signal and output signal power controlling driver piece makes the power switch shutoff when the difference zero passage error-detecting piece, be used for the detected state variable zero passage zero passage detection piece that also output signal power controlling driver piece makes the power switch conducting when zero passage, be used for the driving power switch and be controlled by the error-detecting piece and the analog line driver piece of the output signal of zero passage detection piece.

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