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32186 Datasheet(PDF) 498 Page - Renesas Technology Corp

Part # 32186
Description  MCU
PDF  1032 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

32186 Datasheet(HTML) 498 Page - Renesas Technology Corp

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10.8 TOU (Output-Related 24-Bit Timer)
MULTIJUNCTION TIMERS
10
10-202
32185/32186 Group Hardware Manual
Rev.1.10 REJ09B0235-0110 May 15, 07
10.8.22 Example Application for Using 32185/32186 in Motor Control
The two-channel TOU timers incorporated in the 32185/32186 help to reduce software burdens during motor
control. The following shows an example application for using these 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 or using the
shorting prevention function.
32185/
32186
Power-MOS
Motor
U
/U
V
/V
W
/W
TOU
TOU
TOU
TOU
TOU
TOU
Circuit board
Figure 10.8.24 System Configuration Diagram
clk
TOUn_0
clk
TOUn_1
clk
TOUn_2
clk
TOUn_3
clk
TOUn_4
clk
TOUn_5
F/F
F/F
F/F
F/F
F/F
F/F
TO(U)
PRS
EN
EN
EN
EN
EN
EN
clk
udf
TIDn
Single-shot PWM
Single-shot PWM
Single-shot PWM
Single-shot PWM
Single-shot PWM
Single-shot PWM
Fixed period
udf
udf
udf
udf
udf
udf
TO(/U)
TO(V)
TO(/V)
TO(W)
TO(/W)
20 kHz generated
Startup
Note: · When the shorting-prevention function is enabled, make sure that TOUn_1 (3, 5) is set to run in single-shot output mode.
Figure 10.8.25 Timer Connections When Used for Three-Phase Motor Control
U
V
W
20kHz
TOU start
TO(U)
TO(/U)
TO(V)
TO(/V)
TO(W)
TO(/W)
Delay
Single shot
Delay
Single shot
: Shorting prevention time
Figure 10.8.26 Conceptual Diagram of Motor Control



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