System and Methods for Improving Power Handling of an Electronic Device
First Claim
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1. An electronic device comprising:
- a heatsink;
a set of IGBTs coupled to the heatsink and configured to deliver power to a field exciter and a battery;
a temperature sensor disposed in the heatsink; and
a controller configured to;
receive a temperature reading from the temperature sensor and, based on the temperature reading, determine a junction temperature for at least one of the IGBTs of the set of IGBTs; and
de-rate an output power provided by each of the IGBTs based, at least in part, on the junction temperature.
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Abstract
There is provided an electronic device that includes a heatsink and a set of IGBTs coupled to the heatsink and configured to deliver power to a field exciter and a battery. The electronic device also includes a temperature sensor disposed in the heatsink and a controller. The controller is configured to receive a temperature reading from the temperature sensor and, based on the temperature reading, determine a junction temperature for at least one of the IGBTs of the set of IGBTs. The controller is also configured to de-rate an output power provided by each of the IGBTs based, at least in part, on the junction temperature.
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Citations
20 Claims
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1. An electronic device comprising:
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a heatsink; a set of IGBTs coupled to the heatsink and configured to deliver power to a field exciter and a battery; a temperature sensor disposed in the heatsink; and a controller configured to; receive a temperature reading from the temperature sensor and, based on the temperature reading, determine a junction temperature for at least one of the IGBTs of the set of IGBTs; and de-rate an output power provided by each of the IGBTs based, at least in part, on the junction temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power system for a vehicle comprising:
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a heatsink; a set of IGBTs coupled to the heatsink and configured to deliver power to a field exciter and a battery; a temperature sensor disposed in the heatsink; and a controller configured to; receive a temperature reading from the temperature sensor and, based on the temperature reading, determine a junction temperature for at least one of the IGBTs of the set of IGBTs; and de-rate an output power provided by each of the IGBTs based, at least in part, on the junction temperature. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of reducing thermal cycling in an electronic device comprising:
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receiving a temperature reading from a temperature sensor disposed in a heatsink; based on the temperature reading, determining a junction temperature of at least one IGBT of a set of IGBTs; and de-rating an output power provided by each of the IGBTs based, at least in part, on the junction temperature. - View Dependent Claims (18, 19, 20)
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Specification