seagull Compulsive Aussie Vee Dubber
4,979 posts · joined Dec 2003 ·
does it stop back feed ?
Looking for that special lady : PM me for coffee & cake
why have a relay fitted with resistor ?
General_Failure Use your head, don't abuse it!
1,036 posts · joined Jun 2004 ·
Depends on where the resistor is and what it's used for. Can you give us a diagram?
Taking a totally uninformed guess, it may be to stop the source of the switching current being pulled to ground..or it could be an open collec....oh. VW, not electronics. Sorry. Diagram please :P
Anyway, you usually use a capacitor to help with damping spikes and smoothing off abrupt terminations of power. Resistors provide balance to the force :vader
Taking a totally uninformed guess, it may be to stop the source of the switching current being pulled to ground..or it could be an open collec....oh. VW, not electronics. Sorry. Diagram please :P
Anyway, you usually use a capacitor to help with damping spikes and smoothing off abrupt terminations of power. Resistors provide balance to the force :vader
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
bus914 Custom Title Time!
1,230 posts · joined Aug 2002 ·
Some times they put a multi mega ohm resistor across the relay coil, because it, as coils do, generates a spark when its field collapses. this resistor grounds the spark, while not allowing any significant current flow under normal operating conditions.
[img]https://i4.ytimg.com/vi/KOKlJpsfCyk/default.jpg[/img] Click the thumbnail for video👍
BajaChris Commited Dubber
62 posts · joined Jul 2004 ·
Are you sure it's not a diode?
I was taught to use diodes for spike suppresion, though I can't think of any reason you would need to use this on a vw
I was taught to use diodes for spike suppresion, though I can't think of any reason you would need to use this on a vw
General_Failure Use your head, don't abuse it!
1,036 posts · joined Jun 2004 ·
I tend to use capacitors. They soak up all the surging electrons. That's on the main current, not the switching current. Put a cap across the switching pins and it may be a while before your relay turns off.
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
BajaChris Commited Dubber
62 posts · joined Jul 2004 ·
It's just occured to me that it could be there to prevent radio interference from the switching contacts.
Purple Martin Fahrvergnugen
913 posts · joined Feb 2003 ·
That would be by damping sparks, wouldn't it? If so, makes sense to me.BajaChris wrote:It's just occured to me that it could be there to prevent radio interference from the switching contacts.
1959 red & white Beetle
1975 Kombi camper
1975 Kombi camper