The invention discloses a multi-path balance control device of a lithium ion storage battery. The device contains input back pressure prevention isolation design, input parallel redundancy design, one-stage drive circuit design, two-stage drive circuit design, three-stage drive circuit design and multi-path integrated design. Input signals for the multi-path balance control device of the lithium ion storage battery contain TTL level and CMOS signals, and in space navigation product design, a CMOS circuit has higher reliability, and the output end of the multi-path balance control device has back pressure prevention isolation design; through the parallel redundancy design, the reliability of the multi-path balance control device is improved; the one-stage drive circuit design is used for improving the input drive capacity; the two-stage drive circuit design is used for improving the output drive capacity of a one-stage drive circuit; and the three-stage drive circuit design is used for improving the output drive capacity of a two-stage drive circuit. In the multi-path balance management process of the lithium ion storage battery, level signals are output through the CMOS circuit to control switch-on of the one-stage drive circuit of a balance circuit, the two-stage drive circuit is driven to be switched on, and then a three-stage drive circuit is driven to complete a balance function of high-current output capacity. By using the multi-path balance control device, the balance management performance of the lithium ion storage battery can be improved, and the complexity and cost of balance management design are reduced.

Multi-path balance control device of lithium ion storage battery

The invention discloses a large-power and long-life power supply system. The system comprises n solar cell circuits, n shunting adjustment circuits, one group of first maintenance isolation circuits, m groups of storage battery groups, m charging adjusting circuits, m discharging adjusting circuits, m second maintenance isolation circuits, m sets of monomer equalization circuits, one power collection and bus sampling error amplification circuit, one control and management circuit and one set of buses. Power of the large-power and long-life power supply system provided in the invention is 10kW and the system can be operated more than 15 years in an in-orbit mode.

Large-power and long-life power supply system

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Large-power and long-life power supply system