Double-loop lithium battery charging system
A charging system and lithium battery technology, applied in the direction of battery disconnection circuit, battery circuit device, collector, etc., to reduce the probability of charging failure, low cost, and solve the effects of poor resistance to space single event effects
Active Publication Date: 2020-07-24
SICHUAN AEROSPACE SYST ENG INST
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Problems solved by technology
[0003]
In order to solve the problem of the anti-space single event effect of the charger designed by low-level devices in the prior art, the purpose of the present invention is to provide a low-cost and high-reliability dual-circuit lithium battery charging system
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[0016] Such as figure 1 As shown, a dual-circuit lithium battery charging system is applied to lithium battery charging equipment in low-orbit space radiation environment, including power conversion and isolation circuit, charging management unit, first charging circuit, second charging circuit, charging switch group , the first charging monitoring module, the second charging monitoring module and the charging interface protection circuit, the power conversion and isolation circuit are respectively connected with the charging switch group and the charging management unit, and the charging management unit is respectively connected with the charging switch group, the first charging circuit, the second charging circuit, the first charging monitoring module and the second charging monitoring module, the charging switch group is also connected to the first charging circuit and the second charging circuit, and the first charging circuit is also connected to the first charging detecti...
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The invention discloses a double-loop lithium battery charging system which is applied to lithium battery charging equipment under a low-orbit space radiation environment. The system comprises a powerconversion and isolation circuit, a charging management unit, a first charging loop, a second charging loop, a charging switch group, a first charging monitoring module and a second charging monitoring module. The power conversion and isolation circuit is connected with the charging switch group and the charging management unit. The charging management unit is connected with the charging switch group, the first charging loop, the second charging loop, the first charging monitoring module and the second charging monitoring module. The charging switch group is also connected with the first charging loop and the second charging loop, the first charging loop is also connected with a first charging detection module, and the second charging loop is also connected with a second charging detection module. The system has the advantages of low cost, high reliability, a small size and light weight.
Description
technical field [0001] The invention relates to the technical field of charging management of space equipment on orbit, in particular to a double-circuit lithium battery charging system. Background technique [0002] Due to the radiation environment of the space environment, the charger is susceptible to the influence of the space single event effect, resulting in abnormalities such as the control logic state, CMOS and MOSFET devices such as flipping (SEU), locking (SEL), and burning (SEB) on the charging circuit. Or failure, which will cause the failure of the charger control and protection functions, and eventually lead to equipment damage, especially in the operating conditions that are left unattended and require charging maintenance for a long time. At present, most chargers use industrial-grade devices, and industrial-grade devices are weak against the single particle effect of the space environment. In order to improve the environmental adaptability of the charger in ...
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IPC IPC(8): H02J7/00
CPCH02J7/0031H02J7/0036
Inventor 谭平邓凯王广伟王琦李鹏李丹冯琦刘俊
Owner SICHUAN AEROSPACE SYST ENG INST