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Temperature control circuit and temperature control method

A temperature control and circuit technology, which is applied in the direction of temperature control using electric methods, can solve problems such as high internal temperature, low load continuity rate of power equipment, and failure to meet user needs, so as to achieve high load continuity rate and meet the requirements of use. effect of demand

Inactive Publication Date: 2015-10-07
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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Problems solved by technology

[0002] Power equipment such as electric welding machines are prone to high internal temperatures during operation, so that when they work at room temperature, they will also frequently have over-temperature protection, which will cause the power equipment to stop working, thereby making the load duration of the power equipment Low, can not meet the needs of users

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  • Temperature control circuit and temperature control method
  • Temperature control circuit and temperature control method
  • Temperature control circuit and temperature control method

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] The temperature control circuit in one embodiment is used to control the temperature of the power equipment. The power device can be a device that generates a lot of heat during operation such as an electric welding machine, so that its internal temperature will change accordingly. figure 1 It is a functional block diagram of a temperature control circuit diagram in an embodiment, and the temperature control circuit includes a temperature sampling circuit 110 , a first generation circuit 120 , a first comparison circuit 130 and a first execution circuit 140 . Wherein, the first comparison c...

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Abstract

The invention relates to a temperature control circuit. The temperature control circuit is used for control of a temperature of a power device. The temperature control circuit comprises a temperature sampling circuit used for real-time sampling of an internal temperature of a power device and output of the sampled value, a first generation circuit used for generating a first protection parameter, a first comparison circuit used for generating a corresponding adjusting signal according to a magnitude relationship of a sampling value and the value of the first protection parameter, a first generation circuit used for changing and outputting the value of the first protection parameter when the adjusting signal changes, and a first execution circuit used for adjusting the work current of the power device according to the adjusting signal to achieve temperature control of the power device. The value of the first protection parameter is a first protection threshold or a second protection threshold. The temperature control circuit can ensure that the power device has a high load succession rate and meets usage requirements of users. The invention also relates to a temperature control method.

Description

technical field [0001] The invention relates to the technical field of temperature control, in particular to a temperature control circuit and a temperature control method. Background technique [0002] Power equipment such as electric welding machines are prone to high internal temperatures during operation, so that when they work at room temperature, they will also frequently have over-temperature protection, which will cause the power equipment to stop working, thereby making the load duration of the power equipment Low, can not meet the needs of users. Contents of the invention [0003] Based on this, it is necessary to provide a temperature control circuit that enables the power device to have a higher duty cycle. [0004] A temperature control circuit, used to control the temperature of a power device, comprising: a temperature sampling circuit, used to sample the internal temperature of the power device in real time and output a sampled value; a first generating ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19
Inventor 不公告发明人
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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