Constant current charging device

A constant current charging and charging technology, applied in the direction of adjusting electric variables, control/regulation systems, instruments, etc., can solve the problems of reducing battery life, unstable current and voltage, affecting battery charging efficiency, etc., and achieve stable charging current , The effect of stabilizing the charging voltage

A constant current charging and charging technology, applied in the direction of adjusting electric variables, control/regulation systems, instruments, etc., can solve the problems of reducing battery life, unstable current and voltage, affecting battery charging efficiency, etc., and achieve stable charging current , The effect of stabilizing the charging voltage

CN113448370AActive Publication Date: 2021-09-28SILICON INTEGRATED SYSTEMS

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Embodiment Construction

[0013] In order to make the purpose, technical solutions and effects of the present disclosure more clear and definite, the present disclosure will be further described in detail below with reference to the drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present disclosure, and the word "embodiment" used in the present disclosure specification is meant to be used as an example, illustration or illustration, and is not intended to limit the present disclosure. Furthermore, the article "a" as used in this disclosure and the appended claims may generally be construed to mean "one or more" unless specified otherwise or clear from the context in the singular. Moreover, in the accompanying drawings, components with similar or identical structures and functions are denoted by the same component numbers.

[0014] see figure 1 as well as figure 2 , figure 1 A block diagram of a constant current charging device...

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Abstract

The invention provides a constant current charging device which is used for charging a to-be-charged device and comprises a reference current source for providing a reference current; a current mirror which is electrically coupled to the reference current source and outputs a mirror current; a current adjusting unit which is electrically coupled to the current mirror and the to-be-charged device and outputs a charging current according to the mirror current so as to charge the to-be-charged device; and a current compensation unit which is electrically coupled to the current mirror and the current adjusting unit and adjusts the charging current according to the reference voltage.

Description

technical field [0001] The disclosure relates to the technical field of charging, in particular to a constant current charging device. Background technique [0002] Existing charging devices include a constant current charging mode and a constant voltage charging mode. When the battery is initially charged, the charging device charges the battery in a constant current charging mode. After the battery is charged to a certain voltage, the charging device charges the battery in a constant voltage charging mode. [0003] However, the current and voltage provided by the existing charging device are sometimes unstable, and the unstable current or voltage will not only affect the charging efficiency of the battery, but also reduce the service life of the battery. [0004] Therefore, it is necessary to propose a solution to the above-mentioned problems in the prior art. Contents of the invention [0005] The disclosure provides a constant current charging device, which can solv...

Claims

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Application Information

Patent Timeline
28 Sep 2021
Publication
CN113448370A
IPC
G05F1/56
CPC
G05F1/56; Y02E60/10
Inventors
林松生; 陈耿男