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Aerospace low-voltage BUCK anti-interference and delay starting circuit

A delay start, circuit technology, applied in electrical components, regulating electrical variables, instruments, etc., can solve problems such as poor start-up characteristics and power-off characteristics, unable to meet the requirements of spacecraft load characteristics, etc., to achieve monotonicity and meet load requirements. The requirements of characteristics, the effect of simple circuit structure

Pending Publication Date: 2022-03-11
BEIJING SATELLITE MFG FACTORY
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  • Claims
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Problems solved by technology

[0004] In order to avoid the problem that the low-voltage BUCK circuit cannot meet the requirements of the spacecraft load characteristics due to poor load characteristics, start-up characteristics and power-off characteristics, the invention provides an aerospace low-voltage BUCK anti-interference and delay start circuit

Method used

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  • Aerospace low-voltage BUCK anti-interference and delay starting circuit
  • Aerospace low-voltage BUCK anti-interference and delay starting circuit

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Embodiment Construction

[0032] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, and the embodiments cannot be repeated here one by one, but the embodiments of the present invention are not therefore limited to the following embodiments.

[0034] figure 1 and figure 2 Respectively schematically represent the composition of each part and the specific structure diagram of the aerospace low-voltage BUCK anti-interference and delay start circuit of this embodiment. like figure 1 As shown, the aerosp...

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Abstract

The invention relates to an aerospace low-voltage BUCK anti-interference and time-delay starting circuit in the technical field of aerospace power supplies, which comprises an input bus (1), a low-voltage BUCK circuit (2), an isolation filter circuit (3) and an enabling end time-delay starting circuit (4), and is characterized in that the input bus (1) is used for supplying power to the low-voltage BUCK circuit (2), the isolation filter circuit (3) and the enabling end time-delay starting circuit (4); the low-voltage BUCK circuit (2) is used for supplying power to a load; the isolation filter circuit (3) is used for isolating a power circuit and a control circuit in the low-voltage BUCK circuit (2) and filtering; and the enabling end delay starting circuit (4) is used for controlling the starting or disconnecting time of the low-voltage BUCK circuit (2). The on-load characteristic, the starting characteristic and the power-off characteristic of the low-voltage BUCK circuit can be enhanced, and power-on and power-off are monotonous.

Description

technical field [0001] The invention relates to the technical field of aerospace power supplies, in particular to an aerospace low-voltage BUCK anti-interference and delay start circuit. Background technique [0002] The development trend of miniaturization, light weight, and high efficiency of satellites and other spacecraft has put forward new requirements for the power density of on-board secondary power supplies. As far as the power supply is concerned, it must be designed as a power supply with high efficiency, small size and strong adaptability in order to adapt to the development trend of spacecraft. [0003] In order to meet the high power density requirements of the spaceborne secondary power supply, a multi-output low-voltage spacecraft power supply based on a low-voltage BUCK chip is designed. The low-voltage BUCK chip provides users with a variety of designable functions, such as soft start, frequency adjustment, voltage feedback, adjustable input under-voltage ...

Claims

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Application Information

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IPC IPC(8): H02M1/44H02M1/36H02M3/155
CPCH02M1/44H02M1/36H02M3/155
Inventor 皇志启杨冬平谢鹏飞纪明明马涛穆城
Owner BEIJING SATELLITE MFG FACTORY
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