Invention Grant
- Patent Title: Thermal protection circuit
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Application No.: US14753245Application Date: 2015-06-29
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Publication No.: US09819172B2Publication Date: 2017-11-14
- Inventor: Changqi Li , Bingwu Luo
- Applicant: Huawei Device Co., Ltd.
- Applicant Address: CN Dongguan
- Assignee: HUAWEI DEVICE (DONGGUAN) CO., LTD.
- Current Assignee: HUAWEI DEVICE (DONGGUAN) CO., LTD.
- Current Assignee Address: CN Dongguan
- Agency: Conley Rose, P.C.
- Priority: CN201310119670 20130408
- Main IPC: H02H5/04
- IPC: H02H5/04

Abstract:
A thermal protection circuit which relates to the field of electronic technologies can detect temperature of multiple locations simultaneously and adjust a preset threshold flexibly, thereby improving system reliability. The thermal protection circuit includes: at least one temperature sensor, a detection circuit, an execution circuit, a self-locking and triggering circuit, a protective temperature regulation circuit, and a power supply circuit. The at least one temperature sensor converts a temperature signal into an electrical signal and sends the electrical signal to the detection circuit; the detection circuit detects whether temperature reaches the preset threshold, and sends a turn-off signal to the execution circuit if the temperature reaches the preset threshold; the execution circuit cuts off power supply to the system; and the self-locking and triggering circuit maintains, a power-off state of the system until a power switch is triggered.
Public/Granted literature
- US20150303679A1 Thermal Protection Circuit Public/Granted day:2015-10-22
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