Negative ion air cleaner high-voltage direct current power supply

Abstract

The invention discloses a negative ion air cleaner high-voltage direct current power supply. A noise reduction rectification filter circuit is connected with an alternating current power supply, an output of the noise reduction rectification filter circuit is connected with a DC-DC voltage regulator circuit which is connected with an inverter circuit, the inverter circuit is connected with a boosted circuit and a high frequency boosting transformer, the high frequency boosting transformer is connected with a voltage doubling rectifying circuit, the voltage doubling rectifying circuit is connected with a negative ion air cleaner, and corona wire heater voltage of the negative ion air cleaner is generated by a low-voltage secondary winding of the high frequency boosting transformer. According to the negative ion air cleaner high-voltage direct current power supply, the DC-DC voltage regulator circuit is added on the front stage of an inverter to achieve voltage adjustment, reduction of electromagnetic interference is facilitated, and control complexity of the inverter is lowered; a corona wire heating alternating current power supply is additionally arranged, the winding used for heating is wound on the outer layer of the high-voltage transformer on the premise that cost and complexity of a negative ion generator are not improved, therefore, the transformer can provide corona voltage and corona wire heating alternating voltage at the same time, and insulating treatment is eliminated.

Description

technical field [0001] The invention relates to a high-voltage direct-current power supply for an anion air purifier. Background technique [0002] Negative ion air purifier is an environment-optimized appliance that uses its own negative ions to purify, remove dust, deodorize, and sterilize the air. It differs from traditional air purifiers in that it uses negative ions as the active factor and actively Capture harmful substances in the air, while the traditional air purifier is drawn by a fan and uses a filter to filter dust to purify the air. No consumables are required. Currently, negative ion air purifiers using negative ion converter technology and nanofullerene negative ion releaser technology don’t even need fans, don’t make any noise, and can be used at night. [0003] However, the high-voltage DC power supply of the existing negative ion air purifier such as figure 1 As shown, the secondary side of the high ratio step-up transformer is connected to a voltage dou...

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Problems solved by technology

[0003] However, the high-voltage DC power supply of the existing negative ion air purifier such as figure 1 As shown, the secondary side of the high ratio step-up transformer is connected to a voltage doubler rectifier circuit, so it is equivalent to a high capacitive load on the primary side of the transformer, that is, the inverter is connected to an equivalent high capacitive load. And the load current is very small (light load), which makes it very difficult to adjust the output voltage by changing the duty cycle of the inverter.

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