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Lithium ion battery autonomous bypass module for satellite power supply

A technology of satellite power supply and galvanic isolation circuit, applied in the field of satellite power supply, can solve the problems of reducing product reliability, untimely and other problems, and achieve the effect of improving reliability, wide application range, and improving safety and reliability.

Active Publication Date: 2015-12-16
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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Abstract

The invention discloses a lithium ion battery autonomous bypass module for a satellite power supply, which is characterized by comprising two circuit paths with the same circuit structure, wherein each circuit path is formed by sequentially connecting a voltage comparison circuit, an oscillating circuit and an electric coupling isolation circuit in series; each voltage comparison circuit comprises two operational amplifier, each electric coupling isolation circuit comprises a transformer, and an output terminal of an RC bridge-type oscillator is electrically connected to a primary coil of the transformer sequentially through a current-limiting resistor and a triode; and an output terminal of one secondary coil in each electrical coupling isolation circuit is an output terminal of the electric coupling isolation circuit. The lithium ion battery autonomous bypass module further comprises a bypass driving circuit, wherein the bypass driving circuit comprises two sets of Darlington transistors; and the output terminal of each electric coupling isolation circuit is electrically connected with an input terminal of the two sets of Darlington transistors.

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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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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