THREE-PHASE WAVEFORM MODE
10.3 Three-phase mode 0
➀
➀➀
➀
Carrier wave
Timer A3 interrupt request
➀2
Timer A3 underflow signal
➀1
➀1
➀1
➀1
➀ n
Contents of timer A0/A1/A2
register
n1
n2
n3
n4
One-shot pulse output of
➀2
1/f
i
1/f
i
➀ n
2
1/f
i
➀ n
3
1/f
i
4
timer A0/A1/A2
➀ n
1
➀1
➀1
➀1
Contents of U/V/W output
polarity set buffer
Transferred
Transferred
Reversed
Rever-
sed
Reversed
Trans-
ferred
Trans-
ferred
Contents of output polarity
set toggle flip-flop
➀2
➀2
Reversed signal of pulse
output of dead-time timer
Positive waveform output
Negative waveform output
➀1 : Written by software
➀2 : This is an internal signal, which cannot be read from the external.
fi : Count source of timer A0/A1/A2
Fig. 10.3.4 Triangular wave modulation output example (three-phase mode 0)
7905 Group User’s Manual Rev.1.0
10-23
RENESAS [ RENESAS TECHNOLOGY CORP ]
