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Charger with thermal regulation circuit

A charger and thermal regulation technology, applied in the direction of current collectors, circuit devices, battery circuit devices, etc., can solve the problems of easily damaged chips and high chip temperature, and achieve the effect of constant heat and improved safety

Active Publication Date: 2015-12-30
WUXI ZGMICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the constant current charging stage, due to the low battery voltage, the heat on the power transistor inside the chip is relatively large, which will cause the temperature of the chip to be too high, and the chip is easily damaged

Method used

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Embodiment Construction

[0015] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] The term "one embodiment" or "embodiment" here refers to that specific features, structures or characteristics related to the embodiment can be included in at least one implementation of the present invention. The appearances of "in one embodiment" in various places in this specification do not necessarily all refer to the same embodiment, nor do they necessarily refer to a separate or selected embodiment that is mutually exclusive of other embodiments. "Multiple" and "several" in the present invention mean two or more. "And / or" in the present invention means "and" or "or".

[0017] figure 1 It is a schematic circuit diagram of an implementation of the charger 10 in the present invention. Such as figure 1 As shown, the ...

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Abstract

The invention provides a charger with a thermal regulation circuit. The charger comprises a charging circuit for providing charging current for a battery, the thermal regulation circuit for outputting a drive signal to the charging circuit to reduce charging current when the temperature exceeds a predetermined temperature threshold value. Compared with the prior art, the thermal regulation circuit is added into the charger, when the charger temperature is higher than the predetermined temperature threshold value, the charging current is reduced to ensure constant heat inside a chip, so that not only is continuous charging realized, but also the chip is free of over temperature, and the safety is improved.

Description

【Technical field】 [0001] The invention relates to the field of battery charging, in particular to a charger with heat regulation function. 【Background technique】 [0002] At present, linear chargers have been widely used. A linear charger usually has a constant current charging phase and a constant voltage charging phase. During the constant current charging stage, due to the low battery voltage, the heat on the power transistor inside the chip is relatively large, which will cause the temperature of the chip to be too high, and the chip is easily damaged. [0003] Therefore it is necessary to provide a new solution to solve the above problems. 【Content of invention】 [0004] The purpose of the present invention is to provide an improved charger, which has a thermal regulation circuit, which can adjust the charging current according to the temperature of the charger, so that excessive high temperature can be avoided. [0005] To achieve the above object, the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 田文博尹航王钊
Owner WUXI ZGMICRO ELECTRONICS CO LTD
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