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US 8,710,873 B2Granted
System and method for a driver circuit with a referenced control signal
AssigneeInfineon Technologies Austria AG
InventorsJens Barrenscheen, Laurent Beaurenaut, Marco Bachhuber, Tommaso Bacigalupo, Marcus Nuebling
Life of this patent
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Abstract
In accordance with an embodiment, a method of operating a gate driving circuit includes receiving a reference timing pulse, measuring the received timing pulse according to a local clock generator of the gate driving circuit, and generating a switching control signal based on the measured received timing pulse.
Claims20
A method of operating a gate driving circuit, the method comprising:
- receiving a learning mode activation command from a digital bus;
- operating the gate driving circuit in a learning mode in response to the learning mode activation command;
- receiving a reference timing pulse while operating in the learning mode;
- measuring the received timing pulse according to a local clock generator of the gate driving circuit while operating in the learning mode;
- and
- generating a switching control signal based on the measured received timing pulse while operating in a first mode.
3 more elements
A circuit comprising:
- a clock generator;
- a state machine coupled to the clock generator and a digital bus;
- and
- an output driver having an input coupled to a switching control signal output of the state machine, wherein the state machine is configured to
- receive a learning mode activation signal from the digital bus,
- operate the state machine in a learning mode in response to the learning mode activation signal,
- receive a reference timing pulse during operation in the learning mode,
- measure the received reference timing pulse according to the clock generator during operation in the learning mode, and
- modify the switching control signal based on the measured received reference timing pulse.
6 more elements
A switch driving circuit comprising:
- an output driver configured to be coupled to a control node of a switching transistor;
- a control circuit coupled to the output driver, the control circuit configured to
- measure a reference pulse from a switching control input in a first mode of operation, and
- produce a first timing delay from the switching control input to an output of the output driver based on the measured reference pulse in a second mode of operation;
- and
- a communication interface coupled to the control circuit and coupled to a digital interface, wherein the communication interface is configured to receive a configuration command from the digital interface and place the control circuit in the first mode of operation upon receipt of the configuration command.
3 more elements
Dependencies are inferred from the claim text.