High-power oil fume purification power supply and power supply short-circuit and arc discharge identification method.
A technology of oil fume purification and high power, which is applied in power supply testing, circuit devices, high-efficiency power electronic conversion, etc., and can solve problems such as fires
Pending Publication Date: 2020-03-17
南京汇凯顺电子科技有限公司
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Problems solved by technology
[0004] In order to solve the problem that the continuous flashover discharge phenomenon of the existing high-power range hood purification power supply will cause serious safety accidents such as fires, the present invention provides a high-power lampblack purification power supply and a power supply that can prevent fire safety accidents caused by continuous arcing. Short circuit and arc identification method
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[0026] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
[0027] like figure 2 As shown, a high-power oil fume purification power supply, the input end of the purification power supply is provided with a power filter and protection circuit, which is used to filter the high-frequency interference on the input voltage to ensure the reliable operation of the oil fume purification power supply. Reduce the internal interference of the oil fume purification power supply to the power grid, and improve the performance indicators of E...
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The invention discloses a high-power oil fume purification power supply and a power supply short-circuit and arc discharge identification method. A power supply filtering and protecting circuit is arranged at an input terminal of the high-power oil fume purification power supply; an output terminal of the power supply filtering and protecting circuit is connected with a power factor correction circuit connected with a boosted circuit; an output terminal of the boosted circuit is connected with a detection circuit; and an output terminal of the detection circuit is connected with a control circuit connected with a half-bridge driving circuit. The detection circuit is used for detecting voltage changes at the power supply voltage output terminal; the control device is used for adjusting thestable output of the system power supply voltage in a closed-loop mode according to detected feedback voltages. Therefore, Fire safety accidents caused by continuous sparking are prevented; the decibels and frequency of sparking arc discharge noise are reduced; and the service life of a power supply load is prolonged.
Description
technical field [0001] The invention relates to the field of high-voltage power supplies, in particular to a high-power oil fume purification power supply and a method for identifying short-circuit and arcing of the power supply. Background technique [0002] Oil fume purification principle: The oil fume purifier is on two metal anodes and cathodes with a large difference in curvature radius, and maintains an electrostatic field sufficient to ionize the gas through high-voltage direct current. The electrons, anions and cations generated after gas ionization are adsorbed on the On the soot particles passing through the electric field, the soot particles are charged. Under the action of the electric field force, the soot particles with different charges and polarities move to the electrode plates of different polarities and deposit on the electrode plates. Part of the charged oil fume particles in the corona area and very close to the corona area are opposite to the polarity ...
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IPC IPC(8): G01R31/40H02H1/00H02H5/00H02M1/12H02M1/42H02M1/44H02M3/00H02M7/04
CPCG01R31/40H02M7/04H02M1/42H02M3/00H02M1/12H02M1/44H02H5/00H02H1/0007Y02B70/10
Inventor 徐东方
Owner 南京汇凯顺电子科技有限公司