Will do you 1 better, find attached

Thanx

Virus

Attached Files

PIC-GEN FREQUENCY GENERATOR Short.pdf (1.08 MB, 13 views)

 

Mike

What I am working to is to build a project that uses a keypad to enter frequencies into it and then generate a positive of-set square pulse. Possibly with some memory that will store a couple of frequencies sets.

Is this a difficult project ?, I am looking for a circuit diagram, or something similar that I can maybe adapt, have you come across something similar ?

Thanx

Theunis

 

Any one wanting to build the PIC-Gen, please make sure you get the components first, some are outdated ex.(MAX038 got the last 3 from a supplier, etc).

Virus

PS: Also1 off the 0v pins on connector TB1 in Fig.2. need to be connected to LCD pin 5 or the R/W pin. The other to PIN 1 VSS.

 

This doesn't sound like something that will be readily available and I think you will have to write the code yourself. It looks like you could have a steep learning curve ahead. Have you done any other programming before?

Mike.

 

No programming experience at all, not even electronics, I have read a lot and have built some projects etc pic-gen most advanced for me until now, believe I will get their some time. (All though time it self might catch up with me first.)

I intend to start learning programming asap, how fast, I doubt that I will ever be able to reach that high my self. I have master Proteus and can make PCB’s from exiting schematics, can make my own films (have a image setter and processor) for making the PCB, etching an all the necessary.

Therefore the pic-gen closest to what I intend and could maybe do for now.

Back to the positive-offset on the square wave, any suggestions.

Virus

 

What frequency range are you wanting?, and what resolution? - presumably you are wanting simple 0-5V(ish) logic level pulse?.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

I wanted to use the pic-gen but as mentioned it generates as pos and negative value, I need to get a positive dc offset square puls, from between 0.1 Hz to ± 4Mhz. Wanted to use the pic-gen to drive a 555 or something similar that will give a positive puls, and in turn then drive a Mosfet or two that will puls a air coil at about 24vDC at 5 -10 amps.

Won’t it work to just drive the mosfets directly, because they can only be on or off. The spec on the Pic-gen says it can give +5v, is that enough to drive the mosfets full out.

Thanx

Virus

 

I don't see why you would need a 555?, and why would you need anything like 4MHz?.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

What do I need to change it to have a positive offset ?

Virus

 

I found this circuit, can I use the square wave output from the Pic-Gen to drive this circuit.
I only have IRF540’s can I use them instead of the HUF75337P9 mosfets.

Virus

Attached Images

Coil Driver.png (38.2 KB, 5 views)