ST7FMC1K2B3 STMICROELECTRONICS [STMicroelectronics], ST7FMC1K2B3 Datasheet - Page 147
ST7FMC1K2B3
Manufacturer Part Number
ST7FMC1K2B3
Description
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST7FMC1K2B3.pdf
(309 pages)
- Current page: 147 of 309
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MOTOR CONTROLLER (Cont’d)
Figure 77. Simplified MTC Block Diagram
[Z] : Back EMF Zero-crossing event
Z
[C] : Commutation event
C
(I): Current mode
(V): Voltage mode
n
n
: Time elapsed between two consecutive Z events
PWM MANAGER
: Time delayed after Z event to generate C event
WEIGHT
MEASUREMENT
DELAY
GENERATOR
WINDOW
or SPEED MEASURE UNIT (not represented)
12-bit counter
Phase W
Phase U
Phase V
DELAY = WEIGHT x Zn
DELAY MANAGER
(I)
(V)
CAPTURE Zn
Phase U
1
(I)
CURRENT
VOLTAGE
(V)
(V)
COMMUTE [C]
MODE
TIMER
MTIM
=?
PCN bit
BEMF ZERO-CROSSING
12-bit THREE-PHASE
U, V, W
Phases
BEMF=0
TACHO
INPUT DETECTION
PWM GENERATOR
CFAV bit
[Z]
Encoder Unit
DETECTOR
MANAGER
CHANNEL
OAON bit
Int/Ext
ST7MC1xx/ST7MC2xx
ADC
+
-
MCCREF
C
MCIA
MCIB
MCIC
MCVREF
MCO5
MCO4
MCO3
MCO2
MCO1
MCO0
NMCES
OAP
OAN
OAZ(MCCFI1)
MCCFI0
MCPWMU
MCPWMV
MCPWMW
(V)
(I)
R
147/309
3
V
DD
R
R
2
1
1
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