Self-energy-storage high-power OC driver interface circuit

Abstract

Provided is a self-energy-storage high-power OC driver interface circuit. A power source of the self-energy-storage high-power OC driver interface circuit can be reliably disconnected without depending on external conditions. The self-energy-storage high-power OC driver interface circuit comprises an electricity-cascade preventing circuit, a pulse generating circuit, a pulse driver circuit and a corresponding energy storage circuit. The self-energy-storage high-power OC driver interface circuit has the advantages of being simple in design, low in cost, adjustable in retention time, flexible, reliable and good in practicability. When the self-energy-storage high-power OC driver interface circuit is adopted, the situation that the power source of the self-energy-storage high-power OC driver interface circuit can be reliably disconnected after an OC instruction is given out can be ensured, and instruction reliability is improved.

Description

technical field [0001] The invention relates to a self-storage high-power OC drive interface circuit, which is suitable for applications that require reliable shutdown of its own power supply without relying on external conditions, and belongs to the technical field of electronic circuits for satellite platforms or loads. Background technique [0002] The moon night and fault-tolerant management modules of the lunar surface patrol device need to automatically shut down the primary bus of the whole device in time after receiving the ground command. The command is OC mode, and the driving capacity is not less than 200mA. The hold time is not less than 20ms. [0003] According to the requirements of the independent power-off capability of the moon night and fault-tolerant management modules of the lunar surface patrol device, the following two processing methods are designed according to the traditional design idea: (1) Additional power supply method: This method requires the d...

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Problems solved by technology

The advantage of this method is that it is easy to handle, but the disadvantage is that it needs to add additional power supply development requirements. If a new power supply is assembled into the integrated electronic unit, the whole machine mechanism needs to be changed, otherwise the whole machine needs to provide a new power supply installation position, the weight of the whole machine and power consumption. Both have greatly increased; (2). Module energy storage method: This method is to design an energy storage module for the secondary power supply. The energy storage module needs to ensure that the power supply time for the moon night and the fault-tolerant management module exceeds 20ms after the primary bus is powered off.

The advantage of the modification method is that there is no need to increase the need for additional power supply development. The disadvantage is that the energy storage circuit requires a large space. The PCB and the chassis need to be redesigned. At the same time, the weight and power consumption of the whole machine have increased greatly

[0004] In order to realize the function of closing the primary bus of the inspector, the above two methods both involve the adjustment of the structure of the whole device, and also increase the weight of the whole device

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