Air negative ion generator（空气负离子净化器，英文）

天狼晓月

Air negative ion generator increased the use of high-voltage corona ion content in the air to improve air quality, can promote good health, known as "air vitamin." Clinical Practice has proved that its respiratory system, circulatory system and neurological diseases such as have secondary effects, which in life and the medical profession to be widely used.
This paper describes an efficient open-negative-ion generator, which uses high-voltage thyristor inverter, suspension-firing pin, the structure simple and effective, safe and reliable. Mains voltage 160-250V can work properly, and the power pole province, only about 1W, so long-term continuous operation.
Work

(Figure 1)
The negative ion generator circuit shown in Figure 1. 220V electricity by the VD1, VD2, and R1, R2 of the rectifier, current limiting, one-way pulse-off current control of VS to produce oscillations, the step-up transformer T, after VD3 rectifier million volts by the negative pressure, the discharge for the air discharge, resulting in ionization, generates negative ions.
Select and production of components
parts list below.
No. Name Model Number resistor 22K 1/2W 1 R2 R1 resistor 27K 1/4W 1 R3 resistance 2-4M 1 C1 metallized paper dielectric capacitor 0.1u/400V 1 VD1, VD2 silicon rectifier diode IN4007 2 VD3 single reactor 18kV 1 VS SCR 1A/400V 1 T to the pulse transformer Home 1
T available 14-inch black and white TV line output transformer restructuring, the removal of all low-voltage windings, with F \u003d0.35mm enamelled wire or wire wound 28 turns to package L1, the original ignition coil for the L2, R3 is a protection against electric shock resistance, resistance to 2-4MO. Three electrodes can be an ordinary nickel-plated pin, high-side output high-voltage wire to use black and white lines.
As long as the components of the circuit well, welding correct, do not need debugging to work properly.