Need help with time delay relay - Page 2 - Electronic Circuits Projects Diagrams Free

Roff · 7th December 2003, 06:41 AM

Dingo said:

Quote:

The 1uf is critical as it is what does the timing, the 2uf is there to charge up the 1uf, this means that no mater what your input duration you get the same timing. 1uf with 2m resistor this will give about 2 sec, change it to 5m should give 5 sec.

You don't need the 1uF cap. you can get the same results (minus the power up test mode) with a single 1.5uF cap.

salmansiddique · 31st August 2009, 01:32 PM

i want the circuit for time delay relay

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31st August 2009, 01:32 PM	#17
salmansiddique	i want the circuit for time delay relay