ELECTRONIC “MATCH”

The conductors of the PCB’s made by removing excess foil with a knife, a drill or chemical etching. Installation is carried out by solder-side conductors, by providing radio equipment subject to conditional image on the semiconductor diode and the body of the thyristor.

 

The principle of operation of the lighter based on the cycles of charge-discharge of capacitor C1. This happens when pressed (for time t<5 s) the SV1 button.

 

During the positive half cycle of steps network voltage capacitor C1 is charged. Through resistor R1, diode VD1 and the primary winding of the transformer T1. And when entering the negative half-cycle C1 is discharged. But through the open thyristor VS1, VD2 diode, the winding I of the transformer.

 

T1 — enhancing. In its secondary winding is induced a high voltage the voltage that causes arcing in the gap between the electrodes of the spark gap E1 and ignites the gas.

 

The transformer is performed on 20-mm segment of the ferrite rod of circular or rectangular cross-section with m=400…2000 (from the magnetic antenna of any radio). Wrapped around the rod two or three layers of adhesive tape, he wound up on sections (6×90 turns) secondary winding wire of PEV-2 0,06— 0,07. This is perhaps the most important operation. Wrapping high-voltage winding of two layers of an insulating tape with subsequent impregnation of it with paraffin or epoxy resin, are transferred to the next operation is the winding of the primary winding of only four turns. Do it over high-voltage. Wire uses the same brand (sew-2), but more with a diameter of 0.4 — 0.5 mm.

Ready step-up transformer is placed on the PCB. The terminals of the windings are soldered to the respective printed items.

 

A feature of this electrostatically is that the printed circuit Board also serves as the supporting structure of the entire product. As the material grounds is used a one-sided foil fiberglass 2 mm thick. in the manufacture of printed circuit boards need to make sure that the wires going to the spark gap (which is — spaced from each other and separated by a special notch printed items), did not reach the tapering end of the Board by 1.5— 2 mm and that the protective gap is sure filled with epoxy resin, extruded for bonding insulating lining (glass fiber thickness 2 mm).