Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

transformerless power supply gave me a good shock!

Status
Not open for further replies.

ambrose

New Member
:x

i made a timer using cd4541 .using a transformerless power supply.i assembled it in aadopter like casing(charger type).like it fixes to the plugpoint .


the problem is

when i took the adopter(ie casing ) and touch the two pins(neutral and hot one). it gave me a nasty shock i just literally throwed the thing.

i used .22uf 400V.cap.this is taking the residue current.

please help me to rectify this problem as i arranged to produce in lot.
 
residue current

I guess you played with it after unplugging device from the mains.
What happened is capacitor stayed charged. Try putting resistor
accross capacitor. Maybe 100K 1/2Watt etc so capacitor can discharge
after unplugging unit from the wall.
 
thank u

accross means join the both end of resistor to the two end of the capacitor or join next to it.(iejoin in series)
 
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top