Charge
Fast
Slow
Setting evaluation board
２
Setting chopping frequency of the constant current of the motor
Formula of setting chopping frequency
fOSCM = 1 / [0.56 x
｛
C x (R1 + 500)}]
fchop = fOSCM / 16
Recommended frequency range:
fchop=40kHz to 150kHz
100kHz configuration
Mounted parts are as follows;
Capacitor (C=270pF), Resistance
(R1=3.6kΩ)
Waveform of motor current
Chopping frequency (fchop)
C
R1