Open loop bi-directional converters and corresponding control methods
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United States of America Patent
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Feb 27, 2018
Issued Date -
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app pub date -
Nov 9, 2016
filing date -
Nov 9, 2016
priority date (Note) -
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Abstract
According to some aspects of the present disclosure, open loop bi-directional converters and corresponding control methods are disclosed. Example open loop bi-directional converters include a transformer, one or more primary switches coupled to a primary side of the transformer, one or more secondary switches coupled to a secondary side of the transformer, an input capacitor coupled to an input terminal, an output capacitor coupled to an output terminal, and a primary side controller operable to control the one or more primary switches in an open loop mode at a fixed frequency and a fixed duty cycle. The open loop bi-directional converter is coupled to provide current from the secondary side of the transformer to the primary side of the transformer automatically when the voltage of the input capacitor is reduced below the voltage of the output capacitor.
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