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Square wave alternating current power supply system with fixed frequency

A fixed frequency, square wave AC technology, applied in the electric power field, can solve the problems of high realization cost and complicated control method realization process, and achieve the effect of strong load capacity, strong practical value and strong practicability.

Pending Publication Date: 2021-12-10
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PWM wave is controlled by DSP, and the control method is complex and costly

Method used

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  • Square wave alternating current power supply system with fixed frequency
  • Square wave alternating current power supply system with fixed frequency
  • Square wave alternating current power supply system with fixed frequency

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 2 It is an electrical schematic diagram of a square wave AC power supply system in the prior art. The present invention overcomes the defects of the prior art and proposes a square wave AC power supply system with a fixed frequency, which can output a square wave voltage signal of ±28V and a frequency of 20KHz.

[0021] Such as figure 1 As shown, a square wave AC power supply system with a fixed frequency includes a 28V DC power supply, a voltage converter, an inverter controller, an isolation amplifier module, and a secondary amplifier module; the output of the 28V DC power supply is divided into two circuits, of which 1 The 15V DC is converted into 15V DC through a voltage converter, and the 15V DC supplies power to the inverter controller and the isolation amplifier module at the same time; the other output of the 28V DC power...

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PUM

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Abstract

The invention discloses a square wave alternating current power supply system with fixed frequency. The input is 28V DC signals, and the 28V DC signals are divided into two paths, wherein one path is converted into 15V DC through a voltage converter, the 15V DC supplies power to an inversion controller and an isolation amplification module at the same time, and the other path supplies power to a secondary amplification module; a sawtooth wave signal with a fixed frequency output by the inversion controller is used as a control signal of the isolation amplification module; and an output signal of the isolation amplification module is subjected to secondary amplification through the secondary amplification module, and then a voltage signal of a tire pressure rotary transformer is output. The power supply system is high in loading capacity, capable of providing square wave signals with fixed frequency and voltage, high in practicability and high in practical value.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a square wave AC power supply system. Background technique [0002] The tire pressure resolver is the executive part of the aircraft tire pressure monitoring system. The tire pressure resolver is installed on the axle of the aircraft wheel. The tire pressure resolver rotates with the rotation of the aircraft wheel, but the power supply cable of the aircraft does not move. , in order to meet the power supply demand of the tire pressure resolver, the method of non-contact AC power supply is adopted on the aircraft; in the manufacturing process of the tire pressure resolver, in order to truly simulate the working state of the tire pressure resolver on the The power supply system for the pressure resolver test is exactly the same as that of the aircraft, so the power supply system of the tire pressure resolver test device needs to convert the +28V power supply into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/10H02M7/44H02M3/00
CPCH02M1/10H02M7/44H02M3/00
Inventor 丁磊韩亚国农贵军张晓龙张星罗凯
Owner XIAN AVIATION BRAKE TECH