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Power supply circuit for an ion engine sequentially operated power inverters

  • US 6,154,383 A
  • Filed: 07/12/1999
  • Issued: 11/28/2000
  • Est. Priority Date: 07/12/1999
  • Status: Expired due to Term
First Claim
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1. A power supply circuit comprising:

  • a voltage bus having a input line and a return line;

    a pulse width modulation circuit having a plurality of independently controllable outputs for generating respective dependent entry controllable duty cycles;

    a plurality of power supply modules coupled to said bus and said pulse width modulation circuit, each module coupled to a respective one of said plurality of independently controllable outputs, each module having a primary winding and a secondary winding, each secondary winding coupled to a rectifier circuit, each rectifier circuit coupled in series, each primary winding having a voltage controlled by said pulse width modulation circuit,whereby said pulse width modulation circuit sequentially increasing a first duty cycle of a first one of said plurality of independently controllable outputs until a predetermined duty cycle is reached, thereafter increasing a second duty cycle of a second one of said plurality of independently controllable outputs until a predetermined voltage is obtained.

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