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Thank you. That’s interesting to know. The journey the PCB have taken are step by step, I originally made on veroboard, then cnc’ed the circuit myself using copper and a cnc3040, I have now developed the PCB using easy eda and now I’m trying to go fully surface mount. Example of one of my boards...
Good morning all.
Wonder if anyone could help in advising 2 equivalent transistors to replace a NPN BC107A package type TO-18 and PNP BC327B package type TO-92. I have been using these devices for a while but going more and more surfaces mount and these are probably the last components I need to...
Yeah, I think these were given to me when we did some surplus stock scrapping. I bet the cost a future, be a shame to throw them. Thank you for looking. I couldn’t find anything for the MCE ones either. Could probably get a data sheet from work but not that bothered really. Just trying to make...
Your right. The pwm of the 2n2222a on the low side of the motor power does not work. It seems there is an internal ground link within the module. So therefore the ground I’m switching is useless.
I have tried to swap the 2n2222a to high side of the motor and that did not work either. It’s back...
Thank you. Mmm, adding the fly back diode maybe a problem.
What you said is true and this is how I’m controlling the power for the motor, but I am pushing the power into the board attached. The board attached controls my direction and so on, do I just put the diode across the positive and...
Ok.
I have configured the PIC to output a PWM signal and I have wired up a 2N2222a. B to the the PWM via a 1k resistor. C to one side of the dc motor and the E to ground. What’s the best way to configure the hardware. I’m trying to see if using PWM will work.
but…. Thinking about it I am monitoring the motor with no load, so maybe the 50mA will increase alittle but not sure it will go that much higher, the load is not a lot of friction
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