Good day every one,
Allow me to ask 2 question in a post.
Q1there are five pins in the DC Motor Driver:GND,Vcc,PWM CCW,CW
and i have two motor drivers.
I have a problem on how to connect the pins to the PIC 18F4550.
I have connect one of the motor driver as below:
RC2 to PWM output
RB0 to CCW
RB1 to CW
is that correct?advice me if wrong .
and dunno how to connect the PWM CCW,CW pins of the other side.
Q2I have read alot regarding to torque constant(Km) and back emf(Ke) ,but still can get the answer,
may i know how to get the value of
torque constant(Km) and
back emf(Ke) with only having the information below?
Information of the motor from the datasheet
torque 588mN.m
output power 3.4W
weight 280g
rated voltage 12V
current as no load=max 200mA
speed as no load = 75r/min
rated(with load) = max 1.1A
rated(with load)=56r/min
the value i get for torque constant(Km) is 0.5145,is that correct?
Anybody and help me? thank you.