Example Application For Using The 32180 In Motor Control - Renesas M32R/ECU Series User Manual

10

10.8.19 Example Application for Using the 32180 in Motor Control

The three-channel TOU timers incorporated in the 32180 help to reduce software burdens during motor control.
The following shows an example application for using these 32180 timers in motor control.
The three-phase motor control waveform is produced by starting TOU in accordance with the fixed 20 kHz TOU
startup timing generated by TID. The single-shot PWM function included in TOU enables any desired output
waveform to be configured easily by storing waveform data only when the data needs to be rewritten. Note that
the transistor shorting prevention time can be provided by changing the set time of TOU in software.
Circuit board
Figure 10.8.23 System Configuration Diagram
Figure 10.8.24 Timer Connections When Used for Three-Phase Motor Control
U
V
W
Figure 10.8.25 Conceptual Diagram of Motor Control
U
TOU
/U
TOU
V
TOU
32180
/V
TOU
W
TOU
/W
TOU
clk
TOUn_0
EN
Startup
clk
TOUn_1
EN
clk
TOUn_2
EN
clk
TOUn_3
EN
clk
PRS
TOUn_4
EN
clk
TOUn_5
EN
clk
TOU start
TO(U)
TO(/U)
TO(V)
TO(/V)
TO(W)
TO(/W)
10.8 TOU (Output-Related 24-Bit Timer)
Power-MOS
Single-shot PWM
udf F/F
Single-shot PWM
udf F/F
Single-shot PWM
udf
F/F
Single-shot PWM
udf F/F
Single-shot PWM
udf F/F
Single-shot PWM
udf
F/F
Fixed period 20 kHz generated
TIDn
udf
20KHz
Delay Single shot
Delay
Single shot
10-201
MULTIJUNCTION TIMERS
Motor
TO(U)
TO(/U)
TO(V)
TO(/V)
TO(W)
TO(/W)
: Shorting prevention time
32180 Group User's Manual (Rev.1.0)