motorbike led turn indicator for rear view mirror - Page 3 - Electronic Circuits Projects Diagrams Free

Cry_Wolf · 19th November 2007, 04:56 PM

This circuit is not suitable for you. cause you need a circuit that will repeat the same sequence after all leds have glown. but this circuit will stuck after all leds have glown ..

Helder Ferreira · 19th November 2007, 05:19 PM

Don't forget that it is connected to the turn-signal lamp. on-led sequence, off-leds off, on- led sequence and so on

Quote:

Originally Posted by Cry_Wolf

This circuit is not suitable for you. cause you need a circuit that will repeat the same sequence after all leds have glown. but this circuit will stuck after all leds have glown ..

Cry_Wolf · 19th November 2007, 05:23 PM

when u remove the turn-signal lamp there will be constant voltage coming to that terminal. Its the lamp that turn ON and OFF when constant 12V are applied to it

Helder Ferreira · 19th November 2007, 05:31 PM

The battery you see is just an example. The circuit is connected in paralell with the lamp. When the lamp goes off the supply also.

Quote:

Originally Posted by Cry_Wolf

when u remove the turn-signal lamp there will be constant voltage coming to that terminal. Its the lamp that turn ON and OFF when constant 12V are applied to it

Cry_Wolf · 19th November 2007, 05:36 PM

Not in parallel but in series

If the lamp is in paralell, if it goes off 12V will still be coming to the circuit.

But ur idea is true if u use it in series.

But i dont think so steve wanna use his circuit as well as the lamp!!

steev · 19th November 2007, 05:48 PM

wow guys thats a lot of discussion.
i'll be connecting the circuit to the turn indicator lamp.as helder said the supply to the turn signal will be 12v and on-off-on-off type,as this will be driven by a relay.
so as per helder circuit LED's will glow in sequence of 1+2+3+4+5+6 and these all will stay until i rest the power(that means OFF condition of the turn signal).and again when the signal is in ON condition again the sequence will start.
am i right helder.

@Cry_Wolf
iam using the circuit as it is posted in the above link.mean while helder circuit seems work simple and fine.today i bought the components i'll try to populate and see the results.

Helder Ferreira · 19th November 2007, 05:50 PM

Turn indicators have 2 lamps, one in the front and one in the rear. He can replace the front lamp by this circuit and it will work fine.

Quote:

Originally Posted by Cry_Wolf

Not in parallel but in series

If the lamp is in paralell, if it goes off 12V will still be coming to the circuit.

But ur idea is true if u use it in series.

But i dont think so steve wanna use his circuit as well as the lamp!!

Cry_Wolf · 19th November 2007, 06:00 PM

how can he connect his circuit in series with the rear lamp while placing the circuit in the front lamp's box?

Helder Ferreira · 19th November 2007, 06:00 PM

By removing the capacitor and choosing the right zeners you can use the circuit as a simple voltmeter

Helder Ferreira · 19th November 2007, 06:03 PM

By the way, you did a good job drawing the circuit based on my "rough" english discription.

steev · 19th November 2007, 06:07 PM

hmmm
this i have to see.if the front and back lamps are connected in parallel then it will the good for me.i can connect this circuit in parallel.
if they are in series then i shld think what to do.

Cry_Wolf · 19th November 2007, 06:13 PM

They should be in parallel.

Cry_Wolf · 19th November 2007, 06:17 PM

By the way according to my analysis this circuit will not work. Well try it and lets see the result. I waiting for it.

Good Luck

Helder Ferreira · 19th November 2007, 06:18 PM

The lamps are parallel for shure. You can see that by the lamp being grounded. The only thing you have to check is that usually the turn-signal relays are "load dependant". This can be seen when one lamp "blows" is usually flashes very fast to warn the driver about this condition. If you are to remove the front lamp you can do one of two things: Replace the rear lamp by a stronger (more wattage) lamp or place a resistor of the equivalent value of a lamp in parallel with the circuit lo "load" the turn-signal relay.

Quote:

Originally Posted by steev

hmmm
this i have to see.if the front and back lamps are connected in parallel then it will the good for me.i can connect this circuit in parallel.
if they are in series then i shld think what to do.

steev · 19th November 2007, 06:19 PM

give me some time guys.i got all of the components(with exact zener ratings).tomorrow i'll populate then and wll post the results.
any formula to calculate the requited resistance value? to compensate the load

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19th November 2007, 04:56 PM	(permalink)
Cry_Wolf	This circuit is not suitable for you. cause you need a circuit that will repeat the same sequence after all leds have glown. but this circuit will stuck after all leds have glown .. __________________ Khizer Naeem Mughal IIUI

19th November 2007, 05:23 PM	(permalink)
Cry_Wolf	when u remove the turn-signal lamp there will be constant voltage coming to that terminal. Its the lamp that turn ON and OFF when constant 12V are applied to it __________________ Khizer Naeem Mughal IIUI

19th November 2007, 05:36 PM	(permalink)
Cry_Wolf	Not in parallel but in series If the lamp is in paralell, if it goes off 12V will still be coming to the circuit. But ur idea is true if u use it in series. But i dont think so steve wanna use his circuit as well as the lamp!! __________________ Khizer Naeem Mughal IIUI

19th November 2007, 05:48 PM	(permalink)
steev	wow guys thats a lot of discussion. i'll be connecting the circuit to the turn indicator lamp.as helder said the supply to the turn signal will be 12v and on-off-on-off type,as this will be driven by a relay. so as per helder circuit LED's will glow in sequence of 1+2+3+4+5+6 and these all will stay until i rest the power(that means OFF condition of the turn signal).and again when the signal is in ON condition again the sequence will start. am i right helder. @Cry_Wolf iam using the circuit as it is posted in the above link.mean while helder circuit seems work simple and fine.today i bought the components i'll try to populate and see the results.

19th November 2007, 06:00 PM	(permalink)
Cry_Wolf	how can he connect his circuit in series with the rear lamp while placing the circuit in the front lamp's box? __________________ Khizer Naeem Mughal IIUI

19th November 2007, 06:00 PM	(permalink)
Helder Ferreira	By removing the capacitor and choosing the right zeners you can use the circuit as a simple voltmeter

19th November 2007, 06:03 PM	(permalink)
Helder Ferreira	By the way, you did a good job drawing the circuit based on my "rough" english discription.

19th November 2007, 06:07 PM	(permalink)
steev	hmmm this i have to see.if the front and back lamps are connected in parallel then it will the good for me.i can connect this circuit in parallel. if they are in series then i shld think what to do.

19th November 2007, 06:13 PM	(permalink)
Cry_Wolf	They should be in parallel. __________________ Khizer Naeem Mughal IIUI

19th November 2007, 06:17 PM	(permalink)
Cry_Wolf	By the way according to my analysis this circuit will not work. Well try it and lets see the result. I waiting for it. Good Luck __________________ Khizer Naeem Mughal IIUI

19th November 2007, 06:19 PM	(permalink)
steev	give me some time guys.i got all of the components(with exact zener ratings).tomorrow i'll populate then and wll post the results. any formula to calculate the requited resistance value? to compensate the load Last edited by steev; 19th November 2007 at 06:23 PM.