Multipath superimposed type high-frequency and high-voltage power supply based on DSP2812

A high-frequency high-voltage power supply, superimposed technology, applied to electrical components, output power conversion devices, AC power input conversion to DC power output, etc., can solve the problem that the output amplitude cannot be adjusted in real time, and the frequency adjustment of high-voltage power supply is not easy to achieve and other issues to achieve the effect of high intelligence and controllability

Inactive Publication Date: 2017-02-22
NO 21 RESERCH INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional high-voltage AC power supplies usually use transformers to boost the low-amplitude AC power to achieve high-voltage output. The frequency adjustment of this high-voltage power supply is not easy to achieve, and the output amplitude cannot be adjusted in real time.

Method used

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  • Multipath superimposed type high-frequency and high-voltage power supply based on DSP2812
  • Multipath superimposed type high-frequency and high-voltage power supply based on DSP2812
  • Multipath superimposed type high-frequency and high-voltage power supply based on DSP2812

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Embodiment Construction

[0031] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0032] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] The present invention provides a DSP2812-based multi-channel superimposed high-frequency high-voltage power supply, which adopts a multi-stage series mode to output high voltage such as figure 1 As shown, using the VVVF (Variable Voltage Variable Frequency) modulation method, the high-frequency and high-voltage multi-channel power supply is a group of four power supplies. According to the technical requirements, the voltages of each channel are related to each other in frequency, amplitude and phase, so it can be expressed by the following formula :

[0034] V 1 =ksin(wt)+A 1

[0035] V 2 =ksin(wt+Q 2 )+A 2

...

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Abstract

The invention discloses a multipath superimposed type high-frequency and high-voltage power supply based on DSP2812. The high-frequency and high-voltage power supply includes a DSP control circuit, a power conversion circuit and a power inverter circuit, wherein the power inverter circuit outputs one-path high-frequency and high-voltage alternating currents in a multipolar series connection mode, multipath level signals with same cycles are adopted to be superimposed into a group of sinusoidal waveform or square waveform voltage signals, and each path of level signals is modulated by a path of PWM waveform signals. The power supply achieves modulation on the frequency, amplitude and phase position of an output power supply, and has high intelligence and controllability.

Description

technical field [0001] The invention relates to the technical field of power supply hardware, in particular to a DSP2812-based multi-channel superimposed high-frequency high-voltage power supply. Background technique [0002] In the fields of military, industry, and daily life, high-frequency high-voltage power supplies are widely used. For example, high-voltage power supplies are often used in medical equipment such as X-ray machines and CT; high-voltage AC power supplies are required for withstand voltage tests of capacitors and cables. Power supply; the change of material properties on the surface of metal materials, and the manufacture of ozone also require the use of high-frequency and high-voltage power supplies. Traditional high-voltage AC power supplies usually use transformers to boost the lower-amplitude AC power to achieve high-voltage output. The frequency adjustment of this high-voltage power supply is not easy to achieve, and the output amplitude cannot be adju...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/5395
CPCH02M7/5395
Inventor 娄鹏钱儿孙耀程张东宁王真
Owner NO 21 RESERCH INST OF CHINA ELECTRONICS TECH GRP
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