Apparatus for driving inductive load

Details Apparatus for driving inductive load Apparatus for driving inductive load

2008-05-27

2008-05-27

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

C361S025000, C361S093800

Reexamination Certificate

active

07379285

ABSTRACT:
An apparatus is disclosed that drives an inductive load according to a control signal from an external controller transmits temperature data to it for indicating a condition of the inductive load through a line driver. The external controller regenerates the control signal according to the temperature data. According to the control signal, the apparatus operates a pair of power supply circuits to complementarily supply power to the load. Thermal conditions of the power supply circuits and the line driver are monitored for detecting an overheat condition. The transmission of temperature data to the external controller is enabled as long as no overheat condition is detected in both of the power supply circuits and line driver. If an overheat condition is detected in at least one of the power supply circuits and line driver, heat protection is performed and the overheat condition is communicated to the external controller.

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