High voltage generator circuit
Description.
First of all let me remind you that this circuit is a very dangerous one. The output voltage of this circuit is in Kilo volts and it can seriously injure you or kill you. Try this circuit only if you have enough experience dealing with high voltages. I have no responsibility on any hazards caused by the circuit. Be very careful. This is a humble request.
The circuit given here has three sections namely oscillator, switching stage and a step up stage. The oscillator is build around a NE555 timer operating at 25 KHz. The output of the NE555 coupled to the base of the power transistor TIP3055 which is the switching device. The power transistor drives primary of the step up transformer at 25 KHz and as a result a high voltage will be induced across its secondary.
Circuit diagram.
Notes.
- A 12V lead acid battery can be used for powering the circuit.
- TIP3055 must be mounted on a heat sink.
- T1 can be an EHT (extra high tension) transformer used in television sets.
- For an EHT from 20inch TV, the output voltage will be 8 to 10 KV @12V supply voltage.
- This circuit is not an efficient one and is not suitable for any serious applications.
- Once again, be very careful with this circuit!.
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i wan’t to make this circuit for my expriment can i generate up to 10000volt from this ckt or not please tell me about this
hmmm.. thankss…mr.seetharaman..and im on a project of this producing high voltage with low input..but im not knowleged more abt this High V as im on mY second year of EEE..well i hope i wud make a gud suitable ckt fr huse hold by remodeling this..
Hi Attharuddin this is a high frequency oscillator for HV application for testing insulation etc. The output will be in the order of just a watt. The loss in this circuit is quite high and not suitable for your application. use the inverter circuits meant for your domestic application appeared earlier in this column, use it.
explain me tat wat wud be the output power(watts)..and if i step down it to 230v can i use it as inverter for general house hold purpose and the output power just lasts for seconds or till the battery drains ???
Hi Alone it will be around 500 to 600 micro amps.
Hi
how big is the output current of this high voltage generator?since the voltage comes in kv
thanks,and more power
Hi Kiran with EHT transformers only you can get 8 to 10kV with a compact size. ordinary transformers will be quite bulky in size for this kV, special type of insulation also required. which will become very expensive.
hi!!!!!!!!!!!!!!
can i use a normal transformer insted of eht transformer
please reply me as soon as possible.
thankyou
from kiran
Hi, i have seen a similiar circuit to this one. At there, it was written that, the NE555 output must be amplified to be able to drive the transformer. Transistor here before transformer has a bit like similiar job. but i didn’t understand the term “Drive”. Is it possible to tell me the clear meaning. This will make me feel better. Thank you, regards.
Rick is correct. BU208D will be a better choice.
There maybe should be a 1N4005 rectifier placed across the Primary of the Transformer for circuit protection,, Connect the anode to the Collector of the Transistor and the cathode to the +12 volts of the Circuit.The 1n4005 reduces the effect of Back E.M.F. that could destroy the Transistor.Just a positive+++ Suggestion to improve the reliability of this Circuit!!! This is an Awesome circuit here,,,,,,Nice Job and well done here!!!!
bobbin used car brand CHITACHI and does not work.
‘ve got something best
any circuits that go up to 75-100kV ? without transformer… PLEASE ..i saw it once, i think it uses 4×1,5V batteries
I ment Power Mosfet
Any Particular reason for using BJT, or is it better to use MOSFET.