Electronic disinfection cabinet circuit

The ozone electronic disinfection cabinet circuit is mainly
composed of an ozone electron tube, a solid-state integrated circuit dedicated to the ozone generator and a step-up transformer. Can disinfect bacteria. ': '-After
    power on. The 220V alternating current is stepped down by the transformer Tl to obtain an alternating current voltage of 9V, which is then rectified by bridge VD1~VDI and
filtered by capacitors Cl and C4; after IC 1 stabilizes the voltage, 6V direct current is obtained, which is added to the TWH9221 ozone generator solid-state integrated circuit IC2 superior.
    When button SB is pressed, IC2 is triggered immediately and is in a timing state. At this time, the ⑥ pin of 1C2 outputs a 15kHz high-frequency oscillation signal, which
is directly added to the base of the transistor VT through the resistor for power amplification, and then boosted by the high-frequency boost transformer r2 to obtain a high voltage of about 1.6kV
, which makes the ozone electrons The tube produces ozone gas. When the internal timing circuit of IC2 delays to about 4nun, the oscillation signal output by the IC
pin Z◎ disappears automatically and the circuit stops generating ozone gas.