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US 12,227,090 B2Granted
Control signal modification to preclude phase coincidental switching
AssigneeFord Global Technologies, LLC
InventorsBaoming Ge, Lihua Chen, Serdar Hakki Yonak
Life of this patent
Estimating the term…
Abstract
While a voltage at a gate of one of a pair of series connected switches of a phase leg is greater than a threshold value, circuitry generates a signal with a logical value that precludes a gate driver corresponding to a gate of the other of the pair of series connected switches from driving the gate of the other of the pair of series connected switches.
Claims20
A power converter comprising:
- a pair of series connected switches arranged to define a phase leg;
- a pair of gate drivers, each of the gate drivers arranged to drive a corresponding gate of one of the switches;
- and
- circuitry configured to preclude one of the gate drivers from driving the corresponding gate of the one of the switches responsive to a voltage at the gate of the other of the switches exceeding a threshold value regardless of a state of a control signal provided to the circuitry.
1 more element
A method comprising:
- while a voltage at a gate of one of a pair of series connected switches of a phase leg is greater than a threshold value, generating a signal with a logical value that precludes a gate driver corresponding to a gate of the other of the pair of series connected switches from driving the gate of the other of the pair of series connected switches.
A power converter comprising:
- a pair of series connected switches arranged to define a phase leg;
- a pair of gate drivers, each of the gate drivers arranged to drive a corresponding gate of one of the switches;
- and
- circuitry configured to preclude one of the gate drivers from driving the corresponding gate of the one of the switches responsive to a current through the other of the switches exceeding a threshold value regardless of a state of a control signal provided to the circuitry.
1 more element
Dependencies are inferred from the claim text.