Help with diode calculating

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exsodius

Member - Posts: 34

Joined: February 12, 2005

Posted: February 15, 2005 at 4:59 PM / IP Logged

Hello

I am going to connect a alarm to the blinkers/side repeaters. In total it is 6 bulbs, 3 on left and 3 on right side.

Can you please correct me if i am wrong.

I found out that the wattage of the bulbs are 21w(back)+5w(on the side)+21w(on the front)=47 watt on each side. Total of 96w.

I need 2 diodes. 47w /12v=3,91 ampere each side.

So i need two 6 ampere diodes.

Is two P600M okay?

Sombody told me that it was enough with two 3 ampere 4001 diodes.

KarTuneMan

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Posted: February 15, 2005 at 6:08 PM / IP Logged

Why do you need the diodes?

exsodius

Member - Posts: 34

Joined: February 12, 2005

Posted: February 15, 2005 at 6:12 PM / IP Logged

KarTuneMan wrote:

Why do you need the diodes?

Because this is my turning indicators and alarm has only one output for flashing lights. If i don't use diodes and want to turn left, then both left and right turning indicator will blink at the same time.

iskidoo

Silver - Posts: 1,040

Joined: December 08, 2002

Location: Maine, United States

Posted: February 15, 2005 at 9:16 PM / IP Logged

exsodius wrote:

If i don't use diodes and want to turn left, then both left and right turning indicator will blink at the same time.

If you connect the light output wire to the "marker lights" or "corner lights" then I think you would only be hooking to 1 wire and wouldn't need the diodes. You do realize that when the alarm system is going off or is triggered that it will turn the light output on and off continuosly right? In other words, you don't have to connect to your turn signals to make the lights blink. The alarm will do the blinking of the marker lights for you. It's up to you if you want to do the extra work but it isn't really necessary.

exsodius

Member - Posts: 34

Joined: February 12, 2005

Posted: February 15, 2005 at 9:20 PM / IP Logged

iskidoo

seems like somthing went wrong with your post

iskidoo

Silver - Posts: 1,040

Joined: December 08, 2002

Location: Maine, United States

Posted: February 15, 2005 at 9:28 PM / IP Logged

Try reading it again...it should be there. What is the make/model and year of your vehicle anyway?

exsodius

Member - Posts: 34

Joined: February 12, 2005

Posted: February 15, 2005 at 9:36 PM / IP Logged

iskidoo wrote:

exsodius wrote:

If i don't use diodes and want to turn left, then both left and right turning indicator will blink at the same time.

First it isn' really a alarm. I dont know the word for it. All it does is to open doors, trunk and blink lights with a remote. Its a aftermarket keyless entry system i think its called. Second i dont have marker lights at all here in norway. So basicly the only choice i have is the turning indicator lights or the dome light.

Car is a 2002 ford focus wagon.

iskidoo

Silver - Posts: 1,040

Joined: December 08, 2002

Location: Maine, United States

Posted: February 15, 2005 at 9:44 PM / IP Logged

Are the 2 sets of wires GREEN/ YELLOW & GREEN/ blue? You can also use a relay. Run one set of lights to the light output and use a relay to power the other set of lights. If you trigger your relay coil with the same light output wire, I don't think they would conflict with one another. Just a thought.

iskidoo

Silver - Posts: 1,040

Joined: December 08, 2002

Location: Maine, United States

Posted: February 15, 2005 at 9:49 PM / IP Logged

exsodius wrote:

In norway parking lights is 2 little bulbs with white light inside the headlights, and the rear red driving lights. When all these 4 bulbs are lit, we call them parking lights.

What's wrong with just using those lights? Is that just one connection to light all of them?

exsodius

Member - Posts: 34

Joined: February 12, 2005

Posted: February 15, 2005 at 9:51 PM / IP Logged

iskidoo wrote:

Yes there is 2 sets of wires blue and blue/green for the indicators left and right circuit. And yes i could use a relay. But if i dont have to, i would rather use diodes if its ok.

Regarding to my first question at the top. Are my calculations right? I have already connected it that way and it works. All my indicators blink with a touch on the remote. The only problem is that i have installed two 1 ampere diodes and they get extremly hot only in 10 seconds.

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