Switching device control with second assertion of drive signal during conduction phase
AssigneeSemiconductor Components Industries, LLC
InventorsKarel PTACEK, Tomas TICHY
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AssigneeSemiconductor Components Industries, LLC
InventorsKarel PTACEK, Tomas TICHY
Estimating the term…
A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In response to an OFF condition being detected, the first blanking interval being elapsed, and the exception timer being running, the control logic de-asserts the drive signal and commences a second blanking interval. In response to an ON condition being detected, the second blanking interval being elapsed, and the exception timer being running, the control logic commences a third blanking interval and asserts the drive signal. The control logic may assert and de-assert the drive signal multiple times while the exception timer is running.
A method, performed by a switching device controller, for controlling a drive signal for controlling a switching device, the method comprising:
A switch device controller, comprising:
A semiconductor device including a switching device controller, comprising:
Dependencies are inferred from the claim text.