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ST7MC1K2TC bảng dữ liệu(PDF) 143 Page - STMicroelectronics

tên linh kiện ST7MC1K2TC
Giải thích chi tiết về linh kiện  8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI
PDF  308 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7MC1K2TC bảng dữ liệu(HTML) 143 Page - STMicroelectronics

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MOTOR CONTROLLER (Cont’d)
Finally, the PWM modulated voltage generated by
the power stage is smoothed by the motor induct-
ance to get sinusoidal currents in the stator wind-
ings.
The induction motor being asynchronous, there is
no need to synchronize the rotor position to the
sinewave generation phase in most of the applica-
tions.
Part of the MTC dedicated to delay computation
and event sampling can thus be reconfigured to
perform speed acquisition of the most common
speed sensor, without the need of an additional
standard timer.
This speed measurement timer with clear-on-cap-
ture and clock prescaler auto-setting allows to
keep the CPU load to a minimum level while taking
benefit of the embedded input comparator and
edge detector.
Figure 75. Complementary PWM generation for three-phase induction motor (1 phase represented)
U event
Compare preload
MCP0
register processing
MCPU
PWM generator
counter
PWM Ref
Signal
MCO1
MCO0
Dead time
insertion
1



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