Boost switching power conversion

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source

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Details

323285, 363 21, H02M 3335, G05F 156, G05F 162

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active

053213483

ABSTRACT:
Boost switching power conversion involves an apparatus for controlling transfer of power from an input voltage source to an output voltage sink. The apparatus includes a switch for controllably permitting or inhibiting delivery of current from the source to the output sink when the switch is off or on, respectively. Circuit elements of the apparatus define a characteristic time scale for time variation of the flow of current in the switch after the switch is turned on, and a switch controller is provided for turning the switch on and off at times when the current in the switch is zero. The rate at which the switch is turned on is controlled to regulate the ratio of the voltage across the output voltage sink to the average value of voltage across the input source such that the ratio is greater than or equal to one. A uni-directional conducting device is provided to permit current flow to the voltage sink after the switch has opened and to prevent reverse current flow from the voltage sink back toward the input source.

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Todd et al., "Practical Resonant Power Converters-Theory and Application", Powertechnics Magazine, May 1986, vol. 2, No. 5, pp. 29-35.
Andreycak, "1 MHz 150W Resonant Converter Design Review".
EPO Search Report.
Barbi et al., "Sinusoidal Line Current Rectification At Unity Power Factor With Boos Quasi-Resonant Converters", APEC '90 Conference Proceedings, Mar. 1990, Los Angeles, USA; pp. 553-562.
Sebastian et al., "A Very Simple Method To Obtain One Additional Fully Regulated Output In Zero-Current-Switched Quasiresonant Converters"; PESC '90 Conference Proceedings, vol. II, Jun. 1990, San Antonio, Texas, USA; pp. 536-542.

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