ı am doing 4 quadrant brushed dc motor control. forwad rotation, forwad braking, reverse rotation, reverse braking. I made 2 random reference voltage for forward and reverse.you can set this voltages with trimmer, when forwad reference is bigger than reverse reference, motor rotate forwad, vice versa, if they are same, motor doesn't rotate(braking). (reference voltages change -1V to 1V)
I am working to do 10-15kHz triangular wave(amplitude 1 V). I will use this wave for obtain PWM, comprating triangular wave and reference voltages with LT1028, I will create 2 PWM with a wave, and motor will rotate acording to dominant PWM. these PWMs will apply to H bridge with FET driver(TC1028)
I know that , 12V BDC motor works at 10-15khz. İs that right?
And, is creating triangular wave with op amp reliable ? TL1028 or LM358, Which one is more usefull for generator circuit ?