Overload protection in an electronic device

Abstract

A mechanism for providing overcurrent and/or overvoltage protection to a load of an electronic device (200, 300), as well as providing overtemperature protection to the electronic device. A thermal fuse (150) of the electronic device is adapted to disconnect when an overheat in a first portion (I1, 311) of the electronic device occurs. The first portion is different from the load and/or un-associating with a portion at the load's side. A heat conversion component (260) is thermally coupled to the thermal fuse of the electronic device. The heat conversion component is electrically coupled to the load, and configured to disconnect the thermal fuse responsive to the value of an electrical property of the load's driving signal (through the load) exceeding a predetermined electrical value. Disconnecting the thermal fuse causes an input signal to the electronic device to be electrically disconnected from the load. The thermal fuse has double function of thermal protection at a portion different from the load and electrical protection at the load.

Dependencies are inferred from the claim text.