Electric Mosquito pattern circuit diagram Principle

Electric Mosquito pattern is a new type of small household appliance for mosquito control. The working principle of this product is to use the electronic line to boost the generation of power. At present, such products on the market use dry batteries for power supply, and also use batteries for power supply. The principle is that the output power is very small after the pressure is increased to kill mosquitoes through discharge, which does not affect people or pets.
It powers on the metal mesh, and instantly kills mosquitoes.

Schematic diagram of Electronic mosquito pattern Circuit
(1) the circuit diagram is a typical electronic mosquito pattern circuit. The output of the swing transformer is an Alternating Voltage with a peak value of about 350 v.

(2) oscillating transistor: because the current amplification coefficient of the tube used is uneven, if the tube feels heat-induced during use, the base pole can be connected to a resistance of about 100 euro in a string to limit the base pole current, to reduce the temperature.

(3) rectification part: a quad-pressure half-wave rectification circuit with a DC High Voltage of about 1.4kv output.

Schematic diagram of Electronic mosquito pattern Circuit

 

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I. Working Principle
As shown in circuit 1 of "Electric Mosquito pattern", it is mainly composed of high-frequency oscillating circuit,Three times of pressure rectification circuit and high voltage electric shock metal mesh three parts. Press power switch Sb,A high-frequency oscillator consisting of a transistor Q and A transformer B is used to generate electricity,Convert 3 v dc to about 18 kHz AC,The pressure is increased to about 500 V by B (measured at both ends of the output), and then by the diode vd2 ~Vd4, capacitor C1 ~ C4 tri-pressure rectification increases to around V,Added to the metal network of mosquito shoes. When mosquitoes and flies touch the wire, the insect body causes a short circuit to the power grid,It will be dizzy and killed by current and arc. Circuit,Led D1 and throttling resistor R1 constitute the indicator circuit,Used to indicate the circuit breaking status and display the power consumption of the battery.
Component selection
Transistor Q selects 2n5609 Type Silicon Middle Power Transistor,It can also be replaced by common transistor types such as 8050 and 9013.D1 uses a 3mm red light emitting diode, D2 ~1n4007 Type Silicon rectification diode is used for D4.
R1 ~ R3 both use RTX-1/8w type carbon film resistor. C1 ~0.033 UF/630v type polyester capacitors are used for C4,SB uses a 6mm x 6mm vertical miniature touch switch.Bat is made of a dry battery No. 5 in series (with a plastic battery rack) with a voltage of 3 V.
High-frequency transformer B can be made: Choose 2e19 Ferrite Core and supporting plastic skeleton,L1 is wound around 22 turns with a 22mm. Lacquer wire, L2 is wound around 8 turns with the same number wire,L3 is wound around 08mm turns with 1400.Note that the black spots in the figure are the same-name ends, and the heads and tails are sequentially wound. One or two layers of thin insulation paper are laid between the winding ends.