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Temperature control circuit

A temperature control and circuit technology, applied in temperature control, control/regulation system, non-electric variable control, etc., can solve problems such as electronic equipment cannot start or work normally

Inactive Publication Date: 2014-04-30
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the components of existing electronic equipment can only work normally in the environment of 0-70 ℃, which makes the electronic equipment unable to start or work normally in the low temperature environment

Method used

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  • Temperature control circuit

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Embodiment Construction

[0027] Please refer to figure 1 , the temperature control circuit 20 of the present invention can make an electronic device operate normally in a low temperature environment, and the temperature control circuit 20 is installed in the electronic device. A preferred embodiment of the temperature control circuit 20 includes a microprocessor U1 , a temperature detection module 22 , a circuit protection module 24 and a heating module 26 . The microprocessor U1 is also a part of other functional circuits of the electronic device, and the electronic device can only operate normally when the microprocessor U1 starts normally, for example, the microprocessor U1 is a CPU of a computer system, so The microprocessor U1 is not only used to control the temperature control circuit 20, but also used to control the north and south bridges. Only when the microprocessor U1 starts normally, the computer system can be started normally.

[0028] The temperature detection module 22 includes a negat...

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PUM

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Abstract

The invention discloses a temperature control circuit, which comprises a microprocessor, a circuit protection module, a heating module and a temperature detection module, wherein the temperature detection module is used for detecting the internal temperature of electronic equipment and outputting a detection signal to the microprocessor and the circuit protection module; the circuit protection module is used for receiving the detection signal and a locking signal from the microprocessor and outputting a reset signal to the microprocessor according to the detection signal and the locking signal, so that the microprocessor is in a reset state all the time before the internal temperature of the electronic equipment reaches a preset operating temperature; and the microprocessor is used for outputting a heating signal to the heating module according to the detection signal and the reset signal, so that the heating module starts heating to raise the internal temperature of the electronic equipment. By the temperature control circuit, the electronic equipment can be normally started in a low-temperature environment and can keep the normal operation after being started.

Description

technical field [0001] The invention relates to a temperature control circuit. Background technique [0002] Most components of existing electronic equipment can only work normally in an environment of 0-70° C., which makes the electronic equipment unable to start or work normally in a low temperature environment. Contents of the invention [0003] In view of the above, it is necessary to provide a temperature control circuit that can enable electronic equipment to operate normally in a low temperature environment. [0004] A temperature control circuit comprising: [0005] a microprocessor; [0006] A circuit protection module; [0007] a heating module; and [0008] A temperature detection module, used to detect the internal temperature of the electronic equipment and output a detection signal to the microprocessor and the circuit protection module, the circuit protection module receives the detection signal and a signal from the locking signal of the microprocessor...

Claims

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Application Information

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IPC IPC(8): G05D23/24
Inventor 谢明志
Owner STATE GRID CORP OF CHINA
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