constant to momentary prob

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=2158
Printed Date: July 27, 2025 at 2:19 PM

Topic: constant to momentary prob

Posted By: 2000vsm
Subject: constant to momentary prob
Date Posted: July 23, 2002 at 10:43 AM

ok, the special app relay section for the "constant to momentary", i can't get more than a 1/4 sec pulse from the relay.. i put in a 1000uF cap and a 100,000 OHM resistor and still gives me no difference.

can anyone tell me why?

Replies:

Posted By: go2pac
Date Posted: July 23, 2002 at 5:14 PM

use a higher value cap like maybe a 4700uf with the 10k resistor

-------------
Karl

Pacific Accessory Corporation
Mobile Audio Interfacing Equipment
Connecting You to Your Music Since 1976

Posted By: 2000vsm
Date Posted: July 23, 2002 at 10:46 PM

yeah that was the damn problem.. cap was the limiting factor... so i got 1000uF.. i hope that will ALWAYS trigger the door locks... cuz i had 4700uF but the cap is big and i didn't want to use it cuz it had a 1.5 sec delay... well hopefully this 1000cap will do... i should have gotten 2000

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