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Search: Posts Made By: diablo_r
Showing results 1 to 11 of 11
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Forum: Engine Conversions
10-26-2005, 04:05 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

TIM4

try the TIM4 circuit here, cheap as chips, robust and relaible. I've been running one for a while now.

Cheers,
Rich
Forum: Engine Conversions
10-24-2005, 03:05 PM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

you cannot run the coil direct from a hall, it has the wrong sense, and will not take 2 or 3 amps direct. You need a transistor circuit to act as the power switching.

For mech advance, yes,...
Forum: Engine Conversions
10-10-2005, 02:30 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

I've had loads of probs getting the SCR to work. The CDI circuit works fine, LV and HV sides, the hall trigger works but the SCR either runs inconsistently creating misses, latches on all the time,...
Forum: Engine Conversions
10-07-2005, 03:08 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

I made my hall to SCR circuit off the top of my head in the workshop last night, I'll do a diagram and post it up over the weekend once I've worked out how to use my circuit layout program! Its...
Forum: Engine Conversions
10-06-2005, 03:49 PM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

well I installed the old SCR that was spark jumping at 600v DC, and used a potentiometer to drop the +5v and adjusted it until it triggered. Seemed to work okay, I built a 30Hz input circuit to...
Forum: Engine Conversions
10-06-2005, 02:54 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

Thanks Aablea,

I changed the SCR once I had it running at 380v so it should have been okay. My hall pickup is open circuit when no magnet is near, 0v when the magnet is nearby. I know I'll...
Forum: Engine Conversions
10-05-2005, 04:23 PM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

Hi Jon, another question. Changing the capacitor on the LV side fixed the voltage problems, it runs fine now at 380v DC. BUT.... I cannot get the thyristor to trigger the circuit. It works fine if...
Forum: Engine Conversions
10-05-2005, 03:12 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

HAHA, me too! have you any pics of your wound E core, I've got loads of E cores and as you say they are very easy to wind.

Cheers,
Rich
Forum: Engine Conversions
10-05-2005, 02:25 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

sorry, more questions.

In the early schematic there was no resistor in parallel with the high voltage cap, but R11 (10meg) is there now. Also R9 has been added (10k). Could you just let me...
Forum: Engine Conversions
10-05-2005, 02:14 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

Thanks for the reply! I think this might me my problem, I said 600v but thats all my volt meter goes up to[:-] you cans ee the voltage rise as it charges, it hits the 600v limit and JUST afterwards...
Forum: Engine Conversions
10-05-2005, 01:40 AM
Replies: 299
Views: 252,328
Posted By diablo_r

RE: Opensource CDI ignition

couple of questions JMJ, I made the circuit last night but it does not work quite right. On the far right of your schematic there is a resistor and capcitor (C6 and R1) now it says on the diagram to...
Showing results 1 to 11 of 11


 
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