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  1. Stoneww

    How to get a certain duty time

    Thanks for the help think I'm going to need to do more theory before I can make this PWM work because it just doesn't seem to like me.
  2. Stoneww

    How to get a certain duty time

    Sorry I just found a basic motor and transistor on the EDA program, in reality I'm using a 5V motor and a 2N3906, and I just burnt it, and my fingers.
  3. Stoneww

    How to get a certain duty time

    Thanks a lot man, you helped so much
  4. Stoneww

    How to get a certain duty time

    Just last question on pin 5, is the tiny capacitor there necessary nad if so why?
  5. Stoneww

    How to get a certain duty time

    Thanks dude that's genius :D
  6. Stoneww

    How to get a certain duty time

    Thank you, I've seen that circuit before but I ignored it because I didn't understand the bit where there are 2 diodes and the potentiometer. Could you please explain? Thank you.
  7. Stoneww

    P=I*R

    Thanks a lot dude this is the first time im hearing about complex power, I think P=IV will do me for now but I'm definitely going to research complex :)
  8. Stoneww

    P=I*R

    Ye my bad I know it is Im just wondering why P=I^2*R is used more commonly
  9. Stoneww

    How to get a certain duty time

    I've been trying to make a PWM circuit, i've made the astable circuit fine but im really struggling to get a certain duty time with the resistors. I want it to be variable but best values I can get is to change from 54% and 83% where as I want it to be adjustable between like 20% to 80%. I...
  10. Stoneww

    P=I*R

    Just a short question, wondering why people tend to use P=I^2*R instead of the standard P=IV
  11. Stoneww

    PWM circuit

    Thanks a lot man :)
  12. Stoneww

    PWM circuit

    I'll just use a 9v supply then, and is there any way to calculate the value of the resistor for the transistor, for future projects? And thank you very much :)
  13. Stoneww

    PWM circuit

    I know the values are not correct for what I need they were just some base values I used.
  14. Stoneww

    PWM circuit

    Sorry man, added now
  15. Stoneww

    PWM circuit

    PWM circuit**
  16. Stoneww

    PWM circuit

    Wanted to make a pulse width modulation circuit for a motor. I managed to successfully make an astable with a potentiometer which allows me to change the duty time. I managed to get it to work with an LED with the use of a transistor but I cannot seem to get it working with a motor. Im assuming...
  17. Stoneww

    Relay

    It did but clearly I am blind :D
  18. Stoneww

    Relay

    Thanks for the help :) , turns out the problem was just that 9V wasn't enough for the coil but 18V did the trick.
  19. Stoneww

    Relay

    Oh dude not that diagram, I mean't the diagram that I have left as an attachment
  20. Stoneww

    Relay

    Hey I've been trying my best to get this relay circuit working for about a week now, help would be very much appreciated :) I've managed to get the comparator working as well as the transistor. However the transistor wasn't enough to power a motor. I've tried the motor with a relay but even...
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