Systems and methods for auxiliary power dropout protection
AssigneeWiTricity Corporation
InventorsConor Rochford, Milisav Danilovic
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AssigneeWiTricity Corporation
InventorsConor Rochford, Milisav Danilovic
Estimating the term…
The disclosure features circuits and methods for protecting transistors of a wireless power receiver, which can be controlled by gate drivers powered by an auxiliary power source. The circuit can include a comparator configured to generate a signal indicating a comparison of a value of the auxiliary power source to a predetermined threshold, and a fault latch coupled to the comparator. The fault latch can be configured to trigger based on the generated signal and transmit a signal to respective inputs of the gate drivers to cause a latched-on state of respective gates of the transistors. Switches respectively coupled to the gate drivers can be configured to disconnect respective outputs of the gate drivers from the respective transistor gates. Gate hold-up circuits respectively coupled to the respective transistor gates can be configured to maintain the latched-on state of the respective transistor gates for a period of time.
A method for protecting one or more components of a wireless power receiver comprising one or more transistors configured to be controlled by respective one or more gate drivers, the gate drivers configured to be powered by an auxiliary power source, the method comprising:
A protection circuit for one or more components of a wireless power receiver, the one or more components comprising one or more transistors configured to be controlled by respective gate drivers, the gate drivers configured to be powered by an auxiliary power source, the circuit comprising:
Dependencies are inferred from the claim text.