LOAD DUMP PROTECTION FOR POWER FET DEVICE
First Claim
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1. A load dump protection system operable to provide protection for power transistors used to drive a blower motor of a vehicle, said load dump protection system comprising:
- circuitry for detecting an over-voltage transient, said circuitry adjusting a drive transistor into a saturation mode in response to a detection of an over-voltage transient, said circuitry lowering the power dissipated by the drive transistor when said drive transistor is in said saturation mode.
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Abstract
A load dump protection system is operable to provide protection for power transistors used to drive a blower motor of a vehicle. The load dump protection system includes circuitry for detecting an over-voltage transient. The circuitry adjusts a drive transistor into a saturation mode in response to a detection of an over-voltage transient. The circuitry lowers the power dissipated by the drive transistor when the drive transistor is in the saturation mode.
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7 Claims
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1. A load dump protection system operable to provide protection for power transistors used to drive a blower motor of a vehicle, said load dump protection system comprising:
circuitry for detecting an over-voltage transient, said circuitry adjusting a drive transistor into a saturation mode in response to a detection of an over-voltage transient, said circuitry lowering the power dissipated by the drive transistor when said drive transistor is in said saturation mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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