1 pulse to latch 3 second

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megatfauzi76

Copper - Posts: 93

Joined: December 14, 2006

Location: Malaysia

Posted: July 29, 2008 at 1:03 AM / IP Logged

Hai,

Can anyone guide me. How to make 1 pulsed generate 3 second latch? Detail how to wired to relay and whay kind of capacitor i need.

Thank You

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davngr

Copper - Posts: 109

Joined: October 20, 2007

Posted: July 29, 2008 at 2:13 AM / IP Logged

ddirected 528t has an adjustable timer and directed 452t is an actual pulse generator don't know how long the pulses are.

life is a comedy to think, a tragedy to feel

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megatfauzi76

Copper - Posts: 93

Joined: December 14, 2006

Location: Malaysia

Posted: July 29, 2008 at 9:11 AM / IP Logged

Thanks for the reply..

528t is expensive way...Im searching for cheapest way...Can anyone help me?

Thanks

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dualsport

Silver - Posts: 983

Joined: September 27, 2005

Location: United States

Posted: July 29, 2008 at 8:04 PM / IP Logged

This is cheap-

1 pulse to latch 3 second - Last Post -- posted image.

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megatfauzi76

Copper - Posts: 93

Joined: December 14, 2006

Location: Malaysia

Posted: July 30, 2008 at 10:33 AM / IP Logged

Thanks dualsport..

Look complicated...Can u advise me..how to do only use relay,capacitor,diode and resistor?

Thanks

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megatfauzi76

Copper - Posts: 93

Joined: December 14, 2006

Location: Malaysia

Posted: July 30, 2008 at 10:50 AM / IP Logged

Sorry Dual Sport...

Forgot something...can u modified this diagram to be 1 puls to 3 second latch? I found it in one of the forum...it been design from you..

Thanks again

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dualsport

Silver - Posts: 983

Joined: September 27, 2005

Location: United States

Posted: July 31, 2008 at 9:55 PM / IP Logged

The other circuit is supposed to take two pulses and only pass the second pulse through, it doesn't really change the timing like you want.

If you just want a three second pulse output when you send in a short pulse, the first one would be the one to try.

If you're planning to send in a positive going pulse, then you wouldn't need the inverter chip. Just put the pulse into the diode directly.

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hotwaterwizard

Silver - Posts: 1,350

Joined: December 11, 2003

Location: California, United States

Posted: August 09, 2008 at 6:09 PM / IP Logged

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

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1 pulse to latch 3 second

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