Charging circuit and protection method thereof

A charging circuit and charging power supply technology, applied in battery circuit devices, safety/protection battery circuits, circuit devices, etc., can solve the problems of component damage, lack of current protection, affecting the normal use of batteries, etc., to prevent component damage and protect components. Effect

Pending Publication Date: 2019-03-29
HEFEI LCFC INFORMATION TECH
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  • Abstract
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  • Claims
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Problems solved by technology

When a large current suddenly flows into the trickle charging circuit, it may cause damage to the components in the trickle charging circuit, which will affect the normal operation of the trickle charging circuit and cause it to fail to charge the battery normally. Affect the normal use of the battery
[0004] Therefore, in view of the fact that the cur

Method used

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  • Charging circuit and protection method thereof
  • Charging circuit and protection method thereof
  • Charging circuit and protection method thereof

Examples

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Example Embodiment

[0037] The structure and working principle of the present invention will be further described below with reference to the accompanying drawings.

[0038] like figure 1 As shown, a charging circuit provided by an embodiment of the present invention includes:

[0039] a plurality of charging branches 3, the branch input terminals of the plurality of charging branches 3 are connected in parallel to form a charging input terminal, and the plurality of charging branches 3 are respectively connected to the charging terminals of the battery 4; and

[0040] Protection circuit 2, the protection circuit is connected in series between the charging input terminal and the charging power supply 1; wherein,

[0041] The protection circuit 2 adjusts the charging current provided by the charging power source to a preset current value, and then transmits it to the charging input terminal.

[0042] In the embodiment of the present invention, a protection circuit 2 can be added between the char...

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Abstract

The invention discloses a charging circuit and a protection method thereof. The charging circuit of the present invention comprises: a plurality of charging branches, wherein the branch input ends ofthe plurality of charging branches are connected in parallel to form a charging input end; and a protection circuit connected in series between the charging input end and a charging power source. Theprotection circuit adjusts the charging current provided by the charging power source to a preset current value and then delivers charging current to the charging input end. The charging circuit and the protection method thereof of the present invention adjust the current through the protection circuit by adding the protection circuit between the charging input end and the charging power source, thereby achieving an effect of limiting the current flowing into the charging branches.

Description

technical field [0001] The invention relates to the technical field of power circuits, in particular to a charging circuit and a protection method thereof. Background technique [0002] In the trickle charging circuit under the dual-battery architecture, it will determine which battery in the circuit to charge according to the signal reception of the embedded controller (English name: Embedded Controller, English abbreviation: EC). [0003] Since the principle of the trickle charging circuit is to charge the battery with a small current, each component in the trickle charging circuit has a relatively low current resistance. When a large current suddenly flows into the trickle charging circuit, it may cause damage to the components in the trickle charging circuit, which will affect the normal operation of the trickle charging circuit and cause it to fail to charge the battery normally. Affect the normal use of the battery. [0004] Therefore, in view of the fact that the cu...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0026H02J7/0077
Inventor 陈玮璟利仁中
Owner HEFEI LCFC INFORMATION TECH
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