M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 108

• Manufacturer Part Number: M30622M4
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Timers’ functions for three-phase motor control
108
Figure 1.18.7. Timing chart of operation (2)
Assigning certain values to DU0 (bit 0 at 034A
and DUB1 (bit 1 at 034B
output the U phase alone, to fix U phase to “H”, to fix the U phase to “H,” or to output the U phase alone.
Timer A4 output
U phase
output signal
U phase
Timer B2
Trigger signal for
timer Ai start
(timer B2 overflow
signal)
Control signal for
timer A4 reload
U phase
output signal
U phase
Signal wave
A carrier wave of triangular waveform
Carrier wave
Dead time
Note: Set to triangular wave modulation mode and to three-phase mode 0.
m
Rewriting timer A4 every timer B2 interrupt occurres.
16
) allows the user to output the waveforms as shown in Figure 1.18.7, that is, to
___
n
Timer B2 interrupt occurres.
Rewriting three-phase buffer register.
m
16
) and DUB0 (bit 1 at 034A
n
m
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
), and to DU1 (bit 0 at 034B
p
Mitsubishi microcomputers
M16C / 62 Group
o
___
16
)