A method for seamlessly switch constant voltage and constant current of variable frequency power supply

A variable frequency power supply, constant voltage and constant current technology, applied in the direction of conversion equipment that can be converted to DC without intermediate conversion, can solve the problem of no seamless switching of variable frequency power supply, and achieve the effect of improving adaptability

Inactive Publication Date: 2019-01-11
西安埃克森电源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The frequency conversion power supply currently on the market is mainly used for debugging aging power supply for export equipment and power supply for imported equipment. This kind of frequency conversion power supply equipment only has constant voltage function, but some laboratories or experimental inspection institutions need to have frequency conversion power supply with constant voltage and constant current automatic switching equipment, so this type of equipment cannot meet the actual needs, and there is no variable frequency power supply with seamless switching function in the prior art

Method used

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  • A method for seamlessly switch constant voltage and constant current of variable frequency power supply

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Effect test

Embodiment 1

[0026] The present invention provides such figure 1 A variable frequency power supply constant voltage constant current seamless switching technology method shown includes a variable frequency power supply constant voltage constant current circuit 1, and the variable frequency power supply constant voltage constant current circuit 1 includes a voltage PI conditioning circuit 2, a current PI conditioning circuit 3 and The gating circuit 4, the variable frequency power supply constant voltage constant current circuit 1 also includes a diode and a voltage regulator tube, the voltage PI conditioning circuit 2, the current PI conditioning circuit 3 and the gating circuit 4 all include the first N1 chip 5, the first N1 chip A resistor and a capacitor, the output end of the voltage PI conditioning circuit 2 is connected to the output end of the gating circuit 4, the output end of the voltage PI conditioning circuit 2 and the output end of the gating circuit 4 are provided with a secon...

Embodiment 2

[0037] The present invention provides such figure 1 A variable frequency power supply constant voltage constant current seamless switching technology method shown includes a variable frequency power supply constant voltage constant current circuit 1, and the variable frequency power supply constant voltage constant current circuit 1 includes a voltage PI conditioning circuit 2, a current PI conditioning circuit 3 and The gating circuit 4, the variable frequency power supply constant voltage constant current circuit 1 also includes a diode and a voltage regulator tube, the voltage PI conditioning circuit 2, the current PI conditioning circuit 3 and the gating circuit 4 all include the first N1 chip 5, the first N1 chip A resistor and a capacitor, the output end of the voltage PI conditioning circuit 2 is connected to the output end of the gating circuit 4, the output end of the voltage PI conditioning circuit 2 and the output end of the gating circuit 4 are provided with a secon...

Embodiment 3

[0047] The present invention provides such as figure 1 A variable frequency power supply constant voltage constant current seamless switching technology method shown includes a variable frequency power supply constant voltage constant current circuit 1, and the variable frequency power supply constant voltage constant current circuit 1 includes a voltage PI conditioning circuit 2, a current PI conditioning circuit 3 and The gating circuit 4, the variable frequency power supply constant voltage constant current circuit 1 also includes a diode and a voltage regulator tube, the voltage PI conditioning circuit 2, the current PI conditioning circuit 3 and the gating circuit 4 all include the first N1 chip 5, the first N1 chip A resistor and a capacitor, the output end of the voltage PI conditioning circuit 2 is connected to the output end of the gating circuit 4, the output end of the voltage PI conditioning circuit 2 and the output end of the gating circuit 4 are provided with a se...

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PUM

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Abstract

A method for seamlessly switch that constant voltage and constant current of variable frequency power supply includes constant voltage and constant current circuit of variable frequency power supply,a constant voltage and constant current circuit of the variable frequency power supply comprises a voltage PI conditioning circuit, a current PI conditioning circuit and a gate circuit, the voltage PIconditioning circuit, a current PI conditioning circuit and a gate circuit each comprise a first N chip. The output end of the voltage PI conditioning circuit is connected with the output end of thegate circuit. The output end of the voltage PI conditioning circuit and the output end of the gate circuit are provided with a second N chip. The output end of the second N chip is provided with a second resistor. The second resistor is arranged at the input end of the current PI conditioning circuit. The invention realizes the seamless automatic switching of two PI regulators, thereby meeting thetechnical requirements of constant voltage and constant current seamless switching of the power supply system of the variable frequency power supply, can be used as any occasion requiring constant voltage and constant function of the variable frequency power supply, and improves the adaptability of the variable frequency power supply.

Description

technical field [0001] The invention relates to the technical field of variable frequency power supply control, in particular to a technical method for seamless switching of constant voltage and constant current of variable frequency power supply. Background technique [0002] The frequency conversion power supply currently on the market is mainly used for debugging aging power supply for export equipment and power supply for imported equipment. This kind of frequency conversion power supply equipment only has constant voltage function, but some laboratories or experimental inspection institutions need to have frequency conversion power supply with constant voltage and constant current automatic switching equipment, so this type of equipment cannot meet the actual needs, and there is no variable frequency power supply with seamless switching function in the prior art. [0003] Therefore, it is necessary to invent a technical method for seamless switching of constant voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/20
CPCH02M5/20
Inventor 欧阳小雷温玮华
Owner 西安埃克森电源有限公司
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