4/15/2023 0 Comments How to increase pulse width![]() I did this by using a tranistor array, that has 7 transistors. To use these coils I needed to simulate a signal that the factory igniter box sends to the cars computer. So at idle I would have a 4.9 ms pulse and as the RPM increases I would have a 4 ms pulse, or even just a flat 4-5 ms pulse all the time is OK. So what I want to do is take the signals from the computer which are about 3.2 ms with the car idling, and drops to about 2.3 ms when the RPM increases above about 1,500 RPM.Īll I want to do is take this signal and extend it about 1.7 ms. ![]() 5 V is standard for these coils and my cars computer already sends 5 V signals. I just need to send at least a 4 V signal to the coil and it will charge up and fire when the signal is gone. ![]() And they don't really care if it is a square wave or not. I was finally able, and one of the first to do so, to use non-factory coils and not use the car's original igniter. There are 6 clylinders, and each one has it's own signal and coil. The car's computer sends a 5 V square wave signal for the cars igniter to charge and fire a coil. ![]() When I did study electoincs it was almost 20 years ago.Īnyways. I haven't learned much about electronics. I have been messing around with my cars ignition.
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