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High-power high-voltage D. C. electrostatic electric power unit

A high-voltage DC, power supply device technology, applied in the direction of conversion equipment with intermediate conversion to AC, can solve the problems of inability to effectively improve conversion efficiency, low efficiency, and high frequency, and achieve low power consumption, stable operation, and high frequency. high effect

Inactive Publication Date: 2003-12-31
北京天地四海环保科技有限公司
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  • Abstract
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Problems solved by technology

Both schemes have their defects: the first scheme has high frequency, but low power, so the efficiency is not high; the second scheme has high power, but the frequency can only reach the intermediate frequency, about 10KHZ, so the efficiency is also low
It can be seen that the above-mentioned technologies cannot really effectively improve the conversion efficiency.

Method used

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  • High-power high-voltage D. C. electrostatic electric power unit
  • High-power high-voltage D. C. electrostatic electric power unit
  • High-power high-voltage D. C. electrostatic electric power unit

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Embodiment Construction

[0037] see figure 1 , The power supply device provides power to the whole circuit through the isolation transformer. Firstly, it provides AC power to the voltage regulator, and at the same time, the overvoltage and overcurrent protection circuit sends the voltage and current signals to the microprocessor to realize overcurrent and overvoltage protection. The voltage regulation and rectification circuit is controlled by a microprocessor, that is, the microprocessor receives the voltage and current sampling signals transmitted by the overvoltage and overcurrent protection circuit, and compares them with the preset value. If it is greater than the preset value, the microprocessor cuts off the power supply circuit. output to ensure the safety of the circuit; the microprocessor also samples and judges the output value of the rectifier output circuit, if the voltage value is within the preset range, the microprocessor outputs a control signal, and the voltage regulation rectifier ci...

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Abstract

The invention relates to a power supply unit, in particular a high power high voltage direct current static electric power supply unit which can serve as the power source for dust collection, spraying and X-ray static electricity. The invention provides an intelligent control power supply unit possessing the advantages of small volume, high frequency, large power, high efficiency and reliability. By integrating inversion driver, inverter and booster transformer, the unit realizes the automatic control by microprocessor for stable high voltage direct current power supply, enabling the power source to keep operating on the optimum working point.

Description

technical field [0001] The invention relates to a power supply device, in particular to a high-power high-voltage DC electrostatic power supply device which can be used as a dust removal, spray coating and X-ray electrostatic power supply. Background technique [0002] In the existing high-voltage electrostatic power supply device, the core technology mostly uses a transistor oscillator circuit and a voltage doubler rectifier circuit to obtain DC high voltage. Among them, the transistor oscillating circuit converts the direct current supplied by the previous circuit into high-frequency alternating current, boosts the voltage through the capacitor voltage doubler circuit, and outputs high-voltage direct current after rectification. The disadvantage of this technology is that the high-frequency alternating current generated by the transistor oscillating circuit has a low frequency; although the capacitor voltage doubler circuit is easy to boost, the output current is small and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/22H02M3/28
Inventor 文复生常广月
Owner 北京天地四海环保科技有限公司
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