Hi All,
I need to produce 4 PWM signals to input to 4 power MOSFETs that are driving 4 DC motors. The MOSFET side of things is done/tested/working. Currently I'm producing the PWM signals with a computer I/O interface, however since I'm going with an embedded solution I want to give the PWM generation to the hardware to take some burden off of the embedded controller as it has other things to do.
I've looked at ICs like the Tl494 or the UC1824 for PWM generation, but I'm not sure they are the best for motor control, and I've had a really hard time finding some simple application notes on these 2 ICs. Basically, I'm looking for a single IC solution that will allow me to give 4 analog signals to the chip and will produce 4 unique PWM signals with minimal external components. The PWM frequency is flexible.
If a 4 channel Voltage-to-PWM IC is not available can anyone suggest the simplest single channel Voltage-to-PWM IC that will require minimal components for my application?
If anyone has any suggestions, please let me know.
Thanks, wind-it-up