Motor Control Circuit - Brother P-touch PT-1180 Service Manual

3.2.5

Motor Control Circuit

Fig. 3.2-11 shows the motor drive control of the DC motor which feeds tape.
Through P10, the CPU produces a start/stop control signal to the motor control circuit. Fig. 3.2-12
shows the part of motor waveforms.
#1 (BA6220) is electronic governor IC and controls to keep the rotation speed of motor constant
even if the power source voltage (VBT) varies.
Fig. 3.2-11 Motor Control Circuit
Fig. 3.2-12 Part of Motor Waveforms
III-9