How can i make protector circuit?

S

Shyamal

New Member

• Jun 13, 2011

• #1

I want to make protector circuit using 555ic. need to protect my TV. After two minute, i get the output voltage of giving the power supply. need help......

 

blueroomelectronics

Well-Known Member

• Jun 13, 2011

• #2

What are you hoping to protect it from?

 

Smartx21

New Member

• Jun 14, 2011

• #3

Do you mean a power-on delay?

 

4pyros

Well-Known Member

Most Helpful Member

• Jun 15, 2011

• #4

need to protect my TV

Click to expand...

From what?????

 

S

Shyamal

New Member

• Jun 16, 2011

• #5

TV protector circuit. In details, after coming ac power my TV set get ac power after 2 or 3 0r 1 minute.

 

C

carbonzit

Active Member

• Jun 16, 2011

• #6

So it's basically a power-on delay circuit (adjustable from 1 to 3 minutes) as someone else suggested?

If you can't post a question in understandable English here, you can't expect to get much help ...

 

Smartx21

New Member

• Jun 17, 2011

• #7

Shyamal said:

TV protector circuit. In details, after coming ac power my TV set get ac power after 2 or 3 0r 1 minute.

Click to expand...

So he needs a power-on delay to protect his TV set AFTER A MAINS FAILURE (blackout).
Maybe the voltage is a bit chaotic when power is restablished.
Wouldn´t a surge/spike/peak supressor (with a paralleled varistor, fuses and a series thermistor) do the job?

 

Last edited: Jun 17, 2011

S

Shyamal

New Member

• Jun 23, 2011

• #8

using 555 timer ic