Power distribution control circuit and power distribution circuit

By combining the first switching circuit, the second switching circuit, and the signal holding circuit, and using a D flip-flop to control the MOSFET, the problem of the large size and heavy weight of the magnetic latching relay in spacecraft is solved, achieving stable control and high reliability of the load power supply, making it suitable for the complex environment of spacecraft.

CN120999611APending Publication Date: 2025-11-21SICHUAN STAR GLORY DEFENSE TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202511354441.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

In spacecraft, the use of magnetic latching relays has problems such as large size, heavy weight, high price, small overcurrent capacity and poor environmental adaptability, making it difficult to meet the needs of high current loads and affecting power supply stability.

Method used

A combination of a first switching circuit, a second switching circuit, and a signal holding circuit is used. The D flip-flop controls the MOSFET to achieve stable control of the load power supply. The signal holding circuit maintains the current level for a preset time when the signal level changes, ensuring the continuity and stability of the power supply state.

Benefits of technology

It achieves stable control of load power supply, reduces development costs, improves the operational reliability and control accuracy of the power supply system, adapts to complex working conditions, and avoids power outages or abnormal starts caused by signal mutations.

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Abstract

The invention relates to the technical field of power supplies, and discloses a power distribution control circuit and a power distribution circuit, a first switch circuit can orderly receive and transmit a reset signal and a preset signal, and provides an accurate input basis for subsequent signal processing; and the signal holding circuit can maintain the current level for preset time when the preset signal and the reset signal have level changes, so that circuit misoperation caused by instantaneous fluctuation of the input signal can be avoided, the continuity and the stability of the power supply state of the load are further ensured, and power supply interruption or abnormal starting of the load caused by sudden signal change is prevented. And the second switching circuit is connected with the load by accessing the first power supply voltage, so that ordered on-off control of power supply of the load can be realized under the synergistic effect of the signal holding circuit, and the power supply state of the load can be accurately adjusted according to actual requirements.
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