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Power supply/pulse modulation conversion multiplexing module with multi-mode output

A technology of pulse modulation and pulse modulator, which is applied in the electronic field, can solve the problems that cannot meet the actual needs of special aviation equipment, and achieve the effect of solving the needs of high-voltage switch control

Active Publication Date: 2020-05-22
CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a multi-mode output power supply / pulse modulation conversion and multiplexing module to solve the problem in the prior art that cannot meet the actual needs of special aviation equipment

Method used

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  • Power supply/pulse modulation conversion multiplexing module with multi-mode output
  • Power supply/pulse modulation conversion multiplexing module with multi-mode output
  • Power supply/pulse modulation conversion multiplexing module with multi-mode output

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Embodiment Construction

[0023] see figure 1 As shown, the power supply / pulse modulation conversion and multiplexing module implementing the multi-mode output of the present invention includes a switching power supply, a linear voltage regulator, a pulse driver, an envelope and a pulse modulator.

[0024] The switching power supply receives aviation +28V DC power input and generates the following working power supplies: +5V, 1.65A; -5V, 0.3A; +15V, 0.32A; -15V, 0.12A; -150V, 1mA. The switching power supply includes an on / off control circuit, a step-up power supply circuit and a flyback power supply circuit.

[0025] Such as figure 2 As shown, the on / off control circuit is used to accept external on / off control commands and control the power on or off, and the on / off control circuit includes an on / off control circuit and an initial power supply circuit. Among them, the on / off control circuit, the transistor switch Q22 controls the on / off of the switching power supply by controlling the power input o...

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Abstract

The invention discloses a multimode output power supply / pulse modulation conversion reuse module. The multimode output power supply / pulse modulation conversion reuse module comprises a switching powersupply, a linear voltage regulator, a pulse driver and an enveloped pulse drive modulator, wherein the switching power supply is used for converting +28V DC into different voltages; the linear voltage regulator is used for generating +50V DC and +28V DC; the pulse driver is used for converting a TTL pulse digital signal into a pulse switching signal with the pulse level of +15V to -150V; the enveloped pulse modulator is used for receiving a TTL pulse digital modulating signal and modulating and converting the TTL pulse digital modulating signal into a +28V pulse switching signal.

Description

【Technical field】 [0001] The invention belongs to the field of electronic technology, in particular to a multi-mode output power supply / pulse modulation conversion and multiplexing module applied to avionics. 【Background technique】 [0002] Along with the development trend of avionics systems with diversified functions and miniaturized structures, power supplies are increasingly required to be able to achieve multi-channel multi-mode outputs under the condition of meeting the volume to meet the needs of system applications. [0003] Since aviation equipment has higher and higher requirements for the output power type and driving signal of the power supply, the integrated power modules on the general market cannot meet the individual needs of aviation equipment at all. [0004] At present, the aviation equipment required by the industry needs to convert the 28V DC power supply on the aircraft into a total of 7 output voltages, which are ±5V, ±15V, and -150V switching power su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/335G05F1/46
CPCG05F1/46H02M3/3353
Inventor 吴海珍邵一鹏张艳清
Owner CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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