Patent ID: 11881857
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power switching system comprising:
a switch module including a power transistor and a transistor temperature sensor configured to measure a transistor temperature of the power transistor; and
a gate driver coupled to the switch module, the gate driver including:
a gate-driver temperature sensor configured to measure a gate-driver temperature of the gate driver;
a gate-driver temperature sense circuit configured to output a first pulse train signal corresponding to an internal fault signal based on the gate-driver temperature;
a transistor temperature sense circuit configured to receive the transistor temperature from the transistor temperature sensor and to output a second pulse train signal corresponding to an external fault signal based on the transistor temperature; and
a transceiver configured to communicate a combined signal including the first pulse train signal and the second pulse train signal over a shared communication channel across an isolation barrier of the gate driver.