In the car, negative ions can be important for reducing the effects of the positive charges accumulated in the metallic structure, causing discomfort mainly to those With allergies. The complete circuit is shown in Figure 1.

 

Figure 1 – Complete circuit
Figure 1 – Complete circuit

 

Figure 2 shows a PCB suitable for this project.

 

Figure 2 – PCB for the project
Figure 2 – PCB for the project

 

If powered from a battery, the power supply sector is not used.

T2 is any flyback obtained from an old no-functioning TV set or another piece of equipment using a TRIAC circuit. You must be sure to choose a flyback with an exposed ferrite core where the primary is wound. This primary coil is formed by 7 to 15 turns of any wire between 22 and 18 AWG. You can also use a car ignition coil of any type.

C3 is a glass capacitor, as in the previous project (BM041E)

(not included the power supply)

IC-1: 555 integrated circuit timer

D3: High-voltage rectifier (20 kV)

Q1: TIP31 silicon NPN power transistor

R1, R2: 10 k ohm X 1/8 W resistors, brown, black, orange

R3: 1 k ohm x 1/8 W resistor, brown, black, red

C1: 1,000 µF x 25 V electrolytic capacitor

C2: 0.047 µF polyester or ceramic capacitor

C3: Glass capacitor (see text)

X1: Electrode (as in the basic project)

F1: 1A fuse

 

 

Datasheets


N° of component