There are these types of mosquito killer racket are easily available in market at some 150 rupees.
This consist an electric fence in the bat portion which has 5000-10,000 volts passing through them. This is not only mosquito repellent, it’s insect zapper. When a mosquito gets in contact the high voltage burns it. The inner circuit consists of battery, a charging unit, and a HV inverter circuit, which I’m going to describe here.
Coil turns will be as described in text and not the one indicated in this tmage.
The circuit consists of a flyback topology transformer driven by a general NPN transistor 2SD965. The feedback coil of transformer is of 10 turns, the primary is of 40 turns and the output or secondary coil is of 450 turns. When this circuit is run by 3Volts, the transformer generates about 2000-4000 volts at zero load, and the output is then coupled 3 times by using 3 IN4007 diodes and suitable capacitors, thus reaching our need of 5000-10,000 volts.
Note: All diodes used in circuit are IN4007 diode, The transistor is 2SD965, and can’t be replaced by BC548, The transformer should be ferrite core.
Below an actual circuit board found in mosquito zapper rackets.
how much voltage does 2.4v battery of mosquito racket produce
hi arup,
thanks for you publish.i recently purchase mos bat it was working fine but now it does not kill the mos spark is very low. i checked the trasister got ok.battery is also ok.
when i checked without battery and bat connect to 220v there should be good spark coming out from the net if battery is ok.
pls solution
hi arup can u tell me the name of the high level capacitors and diode used to make electric fence because there are many rats in my garden!!!! and dont giv small anwsers cant understand what you say!!!!
Where can I buy this circuit readymade in qty? Do you know any supplier or manufacturer?
what should be size of the ferite core?????? if i don't find the above mentioned transformer which other transformer sholud i use to get equivalent or more output.......plz answer it soon....
hello , how to make more power output using coil plug motorcycle.
HI ARUP primary winding connection is faulty. transister gets heating . Pls give me a solution. thanks. METTA.
what should be the size of the ferite core......
hey dude can u tell where can i connect the battery's negative and positive terminals
and one question that i wanted to ask u that can i connect the three wires together that go and get connected to the inner and the outer mesh of the fence of the zapper after that also will the battery charge if i remove the whole PCB assembly from the cover
i need to replace the battary of the electric bat . should i replace or it can be rechared by using the 2 holes present in that battery??/
i have a insect killer tennis. it works properly for a year. but after one year it will on but didn't kill the insects. led and all circuit will work properly. as per your previous discussion i have checked my battery, it gives 4 v. it is a Chinese black color battery. what is the problem behind it. ban u tell me.?
can u plese suggest the circuit to shock the fish?
what all changes should i do??
can the transformer changed to solve the problm? using smps transformer;so more current
changed capacitor,diodes.nw to transformer..ur openion?
hi , Arup
i want to make the transfer or coil using in mosquito killing bat , can you help me .my contact no +919830588833
Hi.
1. I have about 10 bats now working, in turn 10 batteries which I can use if I can make them plug and play. just like using AA batteries. How can I do this?
2 I want to charge these bats batteries using solar. what is required to get this charging unit ready..!? if possible?
Hi...,plz help
i bought mosquito bat before three days now its has some problem when i keep charge the charging light is working and fence also works after i remove from charging gt doesn't works what can i do...
Plz tel in detail