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Lithium-ion battery autonomous bypass module for satellite power supply

A technology of satellite power supply and galvanic isolation circuit, which is applied in the field of satellite power supply, can solve problems such as untimeliness and lower product reliability, and achieve the effects of improving reliability, wide application range, and improving safety and reliability

Active Publication Date: 2018-02-06
中电科蓝天科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The untimeliness of software will reduce the reliability of the product

Method used

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  • Lithium-ion battery autonomous bypass module for satellite power supply
  • Lithium-ion battery autonomous bypass module for satellite power supply
  • Lithium-ion battery autonomous bypass module for satellite power supply

Examples

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Embodiment Construction

[0020] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0021] see Figure 1 to Figure 5 , a lithium-ion battery autonomous bypass module for satellite power supply, including: two circuit channels (A channel and B channel) with the same circuit structure and a bypass drive circuit, each circuit channel is composed of a voltage comparison circuit, a An oscillating circuit and a galvanic isolation circuit are sequentially connected in series; where:

[0022] see figure 2 , the figure shows the structure of the voltage comparison circuit in channel A, each voltage comparison circuit includes two operational amplifiers (U3-A, U3-B), each of which has an input terminal for receiving the battery voltage , the other two input terminals are reference terminals (VREF-1, VREF-2), and the two reference t...

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PUM

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Abstract

The invention discloses an autonomous bypass module of a lithium ion storage battery for a satellite power supply, which is characterized in that it comprises: two circuit channels with the same circuit structure, each circuit channel consists of a voltage comparison circuit, an oscillation circuit, The isolation circuits are sequentially connected in series; wherein: each voltage comparison circuit includes two operational amplifiers, each galvanic isolation circuit includes a transformer, and the output terminal of the RC bridge oscillator passes through the current limiting resistor, the triode and the primary of the transformer in turn. The coils are electrically connected; the output terminal of a secondary coil in each galvanic isolation circuit is the output terminal of the galvanic isolation circuit; a bypass drive circuit is also included, and the bypass drive circuit includes two sets of Darlington tubes ; The output terminal of each galvanic isolation circuit is electrically connected to one input terminal of the two sets of Darlington tubes.

Description

technical field [0001] The invention relates to the technical field of satellite power supplies, in particular to an autonomous bypass module of lithium-ion storage batteries for satellite power supplies. Background technique [0002] The lithium-ion battery autonomous bypass module is an important part of the space power supply. It protects the lithium-ion battery pack used in the space at all times, prevents the battery from being damaged by a single cell, and prolongs the service life of the lithium-ion battery pack. . Autonomous bypass technology is an essential key technology for long-life satellite lithium-ion battery management. [0003] At present, domestic satellite bypass modules are mostly realized by software, and the possibility of bypass circuit action is small. Complicated software algorithms lead to waste of software resources and untimely software instructions. During the use of lithium-ion battery packs for long-life satellites, timely removal of damaged ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q23/00
Inventor 李玲胡斌冯利军
Owner 中电科蓝天科技股份有限公司
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