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ST7MC1K2 数据表(PDF) 188 Page - STMicroelectronics

部件名 ST7MC1K2
功能描述  Clock, reset and supply management
PDF  371 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST7MC1K2 数据表(HTML) 188 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
On-chip peripherals
ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
188/371
Figure 77.
Typical command signals of a three-phase induction motor
1.
These simplified chronograms represent the phase voltages after low-pass filtering of the PWM outputs
reference signals.
10.6.5
Functional description
The MTC can be split into five main parts as shown in the simplified block diagram in
Figure 78. Each of these parts may be configured for different purposes:
●
Input detection block with a comparator, an input multiplexer and an incremental
encoder interface, which may work as:
–
a BEMF zero-crossing detector
–
a speed sensor interface
●
The delay manager with an 8/16-bit timer and an 8x8 bit multiplier, which may work as:
–
an 8-bit delay manager
–
a speed measurement unit
●
The PWM manager, including a measurement window generator, a mode selector and
a current comparator
●
The channel manager with the PWM multiplexer, polarity programming, deadtime
insertion and high frequency chopping capability and emergency HiZ configuration
input
●
The three-phase PWM generator with 12-bit free-running counter and repetition
counter
Phase A (1)
Phase B (1)
Phase C (1)
C
A
B
HV
T4
T5
T0
T1
T2
T3
1%
0%
1%
PWM output
PWM
51% 50% 49%
period
Duty cycle
100%
99%
99%
PWM output
Duty cycle
PWM output
Duty cycle
Obsolete
Product(s)
- Obsolete
Product(s)



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