Systems and methods for protecting power conversion systems from thermal runaway
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United States of America Patent
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Feb 27, 2018
Grant Date -
Jul 28, 2016
app pub date -
Feb 10, 2016
filing date -
Dec 6, 2013
priority date (Note) -
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Abstract
System and method for protecting a power conversion system. An example system controller includes a protection component and a driving component. The protection component is configured to receive a feedback signal, a reference signal, and a demagnetization signal generated based on at least information associated with the feedback signal, process information associated with the feedback signal, the reference signal, and the demagnetization signal, and generate a protection signal based on at least information associated with the feedback signal, the reference signal, and the demagnetization signal. The demagnetization signal is related to multiple demagnetization periods of the power conversion system, the multiple demagnetization periods including a first demagnetization period and a second demagnetization period. The driving component is configured to receive the protection signal and output a drive signal to a switch configured to affect a current flowing through a primary winding of the power conversion system.
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