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US 2018/0294653 A1Published application
System and method for wireless power transfer using a power converter with a bypass mode
AssigneeIntegrated Device Technology, Inc.
InventorsRosario PAGANO, Christopher Joseph DAFFRON, Angel Maria GOMEZ ARGUELLO, Siamak ABEDINPOUR
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Abstract
A system and method of wireless power transfer using a power converter with a bypass mode includes a power converter. The power converter includes a pulsed switch, a capacitor configured to supply a drive voltage to the pulsed switch, a first circuit configured to charge the capacitor when the power converter operates in a switched mode of operation, and, a second circuit configured to charge the capacitor when the power converter operates in a bypass mode of operation.
Claims6
1-14. (canceled)
A system comprising:
- a feedback circuit that generates a pulse width modulation signal based on an output voltage of a power converter and a reference voltage;
- and
- a threshold voltage detection circuit configured to:
- determine whether a duty cycle of the pulse width modulation signal exceeds a predetermined threshold;
- when the duty cycle exceeds the predetermined threshold:
- send a first signal to close a bypass switch associated with the power converter;
- and
- send a second signal to enable a charge pump associated with a pulsed switch associated with the power converter.
5 more elements
19-20. (canceled)
Dependencies are inferred from the claim text.