Missile-borne secondary power supply multipath output time sequence control circuit

Abstract

The invention relates to a missile-borne secondary power supply multipath output time sequence control circuit, and belongs to the field of missile-borne computers. The output end of an input reverse connection protection and EMI filter circuit is connected with the input end of a power failure maintaining and pre-voltage-stabilizing circuit and the input end of a multi-path isolation output time sequence control circuit, and the output end of the power failure maintaining and pre-voltage-stabilizing circuit is connected with the input end of a DC push-pull isolation conversion rectification circuit. The output end of the DC push-pull isolation conversion rectification circuit is connected with the input end of the multi-path isolation output time sequence control circuit and the input ends of the second-stage voltage stabilization filtering output circuit a, the second-stage voltage stabilization filtering output circuit b and the second-stage voltage stabilization filtering output circuit c; and the output end of the multi-path isolation output time sequence control circuit is connected with the input ends of the second-stage voltage-stabilizing filtering output circuit b and the second-stage voltage-stabilizing filtering output circuit c. The method has the advantages of small influence of load characteristics, high control precision and stability, flexible time sequence adjustment, controllable power-off time sequence and capability of realizing advanced power-on and lagged power-off of a certain path of output.

Description

Technical field [0001] The present invention is the field of bullet -load computers, which involves a bomb load secondary power supply multi -road output timing control circuit. Background technique [0002] Power supply of bullet -load computer equipment is usually powered by multi -channel isolation secondary power supply, such as host1, bus VOUT2, and switch volume VOUT3.In order to ensure that the logical control and data communication of the computer equipment are reliable during the process of power -on and power -off, the timing requirements of multi -channel isolation of the power output power supply of the secondary power supply are as follows: When the power is called, the host1 advance bus VOUT2 and switch volume VOUT3 power;At the time of the electricity, the host1 lags of VOUT1 VOUT2 and switching volume VOUT3 power. Therefore, it is particularly important to design a multi -channel quarantine output secondary power supply with the control function of the power -to -...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is how to provide a multi-channel output sequence control circuit of the missile-borne secondary power supply to solve the load characteristic influence in the traditional sequence control method Large size, poor control accuracy and stability, inflexible timing adjustment, uncontrollable power-off sequence or inability to simultaneously power on and power off a certain output at the same time

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