Filtering and wave trapping circuit-based voltage following negative ion generator

A technology of negative ion generator and notch circuit, which is applied to instruments, electrical components, adjusting electrical variables, etc., can solve problems such as low sensitivity and inability to improve air, and achieve the effect of eliminating residual AC noise signals and avoiding misoperation.

Inactive Publication Date: 2018-03-20
CHENGDU LEIKEER SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Yet the sensitivity of present negative ion generator is not high, can't improve indoor air

Method used

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  • Filtering and wave trapping circuit-based voltage following negative ion generator
  • Filtering and wave trapping circuit-based voltage following negative ion generator

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Experimental program
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Embodiment

[0016] like figure 1 As shown, the present invention is mainly composed of a control chip U3, a triode VT1, a gas sensor Q, a transformer T2, an amplifier P, a discharge terminal E, a potentiometer R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, and a capacitor C4 , Capacitor C5, capacitor C7, capacitor C6, diode D2, diode D3, filter trap circuit and power supply circuit.

[0017] When connected, the potentiometer R1 is connected in series between the filter trap circuit and the f2 end of the gas sensor Q. The positive pole of the capacitor C4 is connected to the negative pole of the amplifier P, and the negative pole is connected to the f2 terminal of the gas sensor Q. Resistor R2 is connected in parallel with capacitor C4. The positive pole of the capacitor C5 is connected to the output terminal of the amplifier P, and the negative pole is connected to the negative pole of the capacitor C4 after passing through the resistor R3. The P pole of...

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PUM

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Abstract

The invention discloses a filtering and wave trapping circuit-based voltage following negative ion generator. The voltage following negative ion generator is characterized by mainly comprising a transformer T2, a control chip U3, a triode VT1, a discharge terminal E, a potentiometer R1, a diode D2 and the like, wherein the potentiometer R1 is connected between the b end and the f2 end of a gas sensitive sensor Q in series; and the P electrode of the diode D2 is connected with the control end of the potentiometer R1 while the N electrode of the diode D2 is connected with the base electrode of the triode VT1. Negative ions can be generated automatically according to the concentration of harmful gas in the room, so that high sensitivity is achieved, and indoor air can be purified effectively;meanwhile, the sensitivity can be adjusted according to needs, so that the voltage following negative ion generator can be applicable to different occasions; and the discharge terminal can be controlled stably, thereby generating stable negative ions and purifying indoor air effectively.

Description

technical field [0001] The invention relates to the field of air purification, in particular to a voltage-following negative ion generator based on a filter trap circuit. Background technique [0002] In recent years, the widespread use of air conditioners and computers and the prevalence of building decoration have led to the deterioration of indoor air quality. Toxic and harmful gases and suspended solids exceed the standard, but healthy negative ions are seriously lacking, resulting in an increase in the incidence of diseases and a decrease in work efficiency. In order to improve air quality, various air purification technologies and equipment have emerged, including negative ion generators. The negative ion generator detects the concentration of harmful gases in the indoor air, and when the concentration of harmful gases is too high, it will automatically start to generate negative ions, so as to achieve the purpose of fresh air. Yet the sensitivity of present negative...

Claims

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Application Information

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IPC IPC(8): H01T23/00A61L9/22H02M3/335H02M1/14H02M1/32F24F3/16F24F11/00F24F110/50
CPCA61L9/22F24F3/16F24F8/30H01T23/00H02M1/14H02M1/32H02M3/335
Inventor 黄涛
Owner CHENGDU LEIKEER SCI & TECH
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