M moonstreat New Member May 7, 2010 #1 hello, I wonder if there is any way to regulate the speed of my motor. There is some circuit that makes adjusting the speed of DC motors?
hello, I wonder if there is any way to regulate the speed of my motor. There is some circuit that makes adjusting the speed of DC motors?
M MrAl Well-Known Member Most Helpful Member May 7, 2010 #2 Hi, How much current does your motor require?
Hero999 Banned May 7, 2010 #4 What sort of motor is it? A brushed motor? There are many different ways of doing this, one is to use a PLL to lock the frequency of pulses from a tachometer to an oscillator.
What sort of motor is it? A brushed motor? There are many different ways of doing this, one is to use a PLL to lock the frequency of pulses from a tachometer to an oscillator.
M moonstreat New Member May 7, 2010 #5 is my motor: **broken link removed** Uploaded with ImageShack.us
Hero999 Banned May 7, 2010 #6 Do you mean regulate as in constant speed, i.e. adding a small load to the motor doesn't reduce its speed? That requires a closed loop system. If it's just a variable speed control, it's pretty simple.
Do you mean regulate as in constant speed, i.e. adding a small load to the motor doesn't reduce its speed? That requires a closed loop system. If it's just a variable speed control, it's pretty simple.
Hero999 Banned May 7, 2010 #8 Here's the simplest speed control I know of. Replace the lamp with the motor with a diode connected in reverse parallel. **broken link removed**
Here's the simplest speed control I know of. Replace the lamp with the motor with a diode connected in reverse parallel. **broken link removed**
bychon New Member May 7, 2010 #9 Is $20 plus shipping simple? Attachments CKMX033DATA.pdf 637.6 KB · Views: 313
Hero999 Banned May 7, 2010 #11 It's a generic P-channel MOSFET, it's not critical as long as it has a high enough voltage and current rating to power the motor. It can be changed to N-channel but the response of the pot. will be reversed. **broken link removed**
It's a generic P-channel MOSFET, it's not critical as long as it has a high enough voltage and current rating to power the motor. It can be changed to N-channel but the response of the pot. will be reversed. **broken link removed**
M MrAl Well-Known Member Most Helpful Member May 7, 2010 #12 moonstreat said: yes I want a system of speed control! please post for me Click to expand... So i guess all you want to do is be able to vary the motor speed, without concern if the motor slows down a little by itself when a load is applied, or you are using a more or less constant load anyway.
moonstreat said: yes I want a system of speed control! please post for me Click to expand... So i guess all you want to do is be able to vary the motor speed, without concern if the motor slows down a little by itself when a load is applied, or you are using a more or less constant load anyway.