Pulses from square wave
It is not clear to me what he explains, Contribute photographs and if possible outline what he says.
Thanks for your response, I explain myself, I have a distribution that, when rotating, generates a square wave, when stopped, this wave can remain in a high or low state, if it is in a low state, negative I have no problem, if the module is in a high state It is activated, passing to the coil which burned and the module was also burned, I use a Chevrolet ignition module, I do not have here to upload images, the theme is to make this square wave generate only pulses with the positive peaks of the square wave, so I avoid a constant positive voltage on the module input.
Hello, thanks for coming, if I am using the Chevrolet ignition module they call galletica, it has two pins for one tip and two for the other, very easy to connect.
I have searched for information on the electronic circuitry of the module and at the moment I did not find anything that could provide me with the information I want.
From the little I have seen, that module is an interface between the platinum system and the ignition coil.
The entrance of platinos can be configured in several ways, among them I have seen that one is by activation when closing mass (low state of the square wave).
If I can find out what this module is inside, I can tell you how to get what you want.
I anticipate that the solution involves inserting an electronic timer.
Thank you for the answer, let's start with a platinum, it can be closed or open if it is closed there is no current at the module entry point, but if it remains open if there is a positive voltage at the module input, when this pulse remains positive at the module input, it is activated or is leading current to the coil causing the coil and module to be damaged, which is what I want to avoid
The module is a signal amplifier device to apply it cleanly to the coil, I will try to upload an image of the idea, it is usually activated with the positive peak of the square wave.
Operation is as follows; When the input is positive for 5 seconds, the circuit activates the relay and outputs 1 and 2 cease to continue interrupting the current.
Once this occurs, the current will only be restored if the pulse input receives a low signal again or if the power is disconnected for half a second.
Greetings, you are not using any of the two options mentioned, I am using the negative output of a hall sensor which carries a resistance of 2.2 k between the positive point of its power and the exit point of the hall sensor, when the hall gives the signal output the output point is negative, when the hall is off the output point is positive by the resistance of 2.2k this positive pulse is the one that activates the module to send current to the coil, if it will always make the hall stay on, that is to say with its negative exit would not have any problem.
... but randomly the engine can stop at any point, which would cause damage to the two devices, module and coil, in case of not removing the key immediately, if a wire pickup that generates the sine is used, no I would have no problem, since the sine is only generated when the motor is turned ...
... the internal circuitry of this module that I use is simple, a ci processes the sinus and discharges its output on a power transistor that drops its collector to ground, as the positive terminal of the coil is positive, upon receiving the coil the pulse for the negative, generates the high voltage spark ...
OKAY. I am designing an electronic circuit that will disconnect the system power supply after 2 seconds of uninterrupted positive pulse.
Thanks, I thought about that with a 555, but I discarded it, I preferred to do something like with a step capacitor, just take the positive pulses that activate the module, I once saw a circuit that turned the square wave into only pulses, I saw it a long time ago and I can't find it now.
Thank you, apart from achieving pulses from a square wave it is no more, with this I would solve the invention.
Greetings my friends, for those who had a question similar to mine, I have solved it with a pi filter, relatively simple solution thanks for your answers
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