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Aircraft direct current power supply

A DC power supply, aviation technology, applied in the field of power supply, to achieve the effect of small size, high efficiency and low noise

Inactive Publication Date: 2015-04-29
XIAN RVNUO NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aviation power supply requirements: strong load adaptability, high efficiency, good stability, good output waveform quality, simple operation, small size, light weight, intelligent control, abnormal protection function, adjustable output frequency, fast output response speed, strong overload capacity , fully isolated output, long life and anti-damage characteristics; the existing aviation power supply still cannot fully meet the requirements

Method used

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  • Aircraft direct current power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Such as figure 1 The aviation DC power supply shown includes a delay soft start circuit connected to the 220V input, a rectification circuit 1 connected in sequence, a filter circuit 2, an inverter circuit 3, a transformer circuit 4, a secondary rectification circuit 5, and a secondary filter circuit Circuit 6; and a drive circuit for controlling the inverter circuit 3; a control circuit board for receiving current feedback signals and voltage feedback signals, and controlling the drive circuit; a power supply circuit board for providing DC power to the control circuit board;

[0011] The rectifier circuit 1 is used to convert 220V AC power into DC power and output it to the filter circuit 2; after the DC power is filtered, it is sent to the inverter circuit 3, and the drive circuit is controlled by the control circuit board, and the drive circuit controls BG1 and BG2 to turn on and off alternately Then, the DC power is converted into high-frequency pulses, and then thr...

Embodiment 2

[0013] The above inverter circuit is composed of two insulated gate bipolar transistors (IGBT): BG1 and BG2, and three capacitors: C1, C2, and C3; the collector of BG1 is connected to the positive pole of the circuit output by the filter circuit, and the collector of BG1 is connected to the positive pole of the circuit output by the filter circuit. The transmitter is connected to the collector of BG2, the emitter of BG2 is connected to the negative pole of the output circuit of the filter circuit, the gates of BG1 and BG2 are respectively connected to the drive circuit, and C1 and C2 are connected in series between the positive pole and the negative pole of the output circuit of the filter circuit , C3 is connected in series with the output negative pole of the inverter circuit.

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PUM

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Abstract

The invention belongs to the technical field of power supplies, and particularly relates to an aircraft direct current power supply. The aircraft direct current power supply comprises a time-delay soft starting circuit connected with 220V input, and a rectifying circuit, a filtering circuit, an inversion circuit, a voltage transformation circuit, a secondary rectifying circuit and a secondary filtering circuit which are connected in sequence, and further comprises a driving circuit for controlling the inversion circuit, a control circuit board for receiving a current feedback signal and a voltage feedback signal and controlling the driving circuit, and a power supply circuit board for providing direct current power to the control circuit board. The aircraft direct current power supply can provide direct current power of 270 V, adopts current mode type PWM control and full-bridge transformation and is high in dynamic response and high in overcurrent protection function; by the adoption of insulated gate bipolar transistor (IGBT) high-frequency static transformation, the aircraft direct current power supply is small in size, light in weight, low in noise and high in efficiency.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to an aviation DC power supply. Background technique [0002] Aviation power supply requirements: strong load adaptability, high efficiency, good stability, good output waveform quality, simple operation, small size, light weight, intelligent control, abnormal protection function, adjustable output frequency, fast output response speed, strong overload capacity , fully isolated output, long life and anti-damage characteristics; the existing aviation power supply still cannot fully meet the requirements. Contents of the invention [0003] The purpose of the present invention is to provide an aviation DC power supply for the use requirements of the aviation power supply, including a delay soft-start circuit connected to the 220V input, a rectifier circuit connected in sequence, a filter circuit, an inverter circuit, a transformer circuit, a secondary Rectifier ci...

Claims

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Application Information

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IPC IPC(8): H02M7/217H02M7/537
CPCH02M7/219H02M7/537
Inventor 龚丽君
Owner XIAN RVNUO NEW ENERGY
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