M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 111

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M30622M4

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

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Timers’ functions for three-phase motor control
Figure 1.18.9. Timing chart of operation (4)
Trigger signal for
timer Ai start
signal)
Timer A4 output
U phase
output signal
U phase
Timer B2
U phase
output signal
U phase
(timer B2 overflow
Signal wave
A carrier wave of sawtooth waveform
Carrier wave
Dead time
Note: Set to sawtooth modulation mode and to three-phase mode 0.
Interrupt occurres.
Rewriting the value of timer A4.
m
Rewriting three-phase
output buffer register
n
Interrupt occurres.
Rewriting the value of timer A4.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Data transfer is made from the three-
phase buffer register to the three-
phase shift register in step with the
timing of the timer B overflow.
p
Mitsubishi microcomputers
M16C / 62 Group
The three-phase
shift register shifts
in synchronization
with the falling
edge of timer A4.
111

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