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MC3PHACVP 数据表(PDF) 10 Page - Freescale Semiconductor, Inc

部件名 MC3PHACVP
功能描述  MC3PHAC Monolithic Intelligent Motor Controller
Download  36 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

MC3PHACVP 数据表(HTML) 10 Page - Freescale Semiconductor, Inc

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MC3PHAC Monolithic Intelligent Motor Controller, Rev. 2
10
Freescale Semiconductor
Features
Figure 4. Dynamic Bus Ripple Cancellation
In standalone mode, the base frequency and PWM polarity are specified at the same time during
initialization by connecting either pin 25, 26, 27, or 28 exclusively to the PWMPOL_BASEFREQ input.
During initialization, pins 25, 26, 27, and 28 are cycled one at a time to determine which one has been
connected to the PWMPOL_BASEFREQ input.
Table 3 shows the selected PWM polarity and base frequency as a function of which pin connection is
made. Refer to the standalone mode schematic, Figure 8. Only one of these jumpers (JP1–JP4) can be
connected at any one time.
NOTE
It is not necessary to break this connection once the initialization phase has
been completed. The MC3PHAC will function properly while this
connection is in place.
Table 3. PWM Polarity and Base Frequency Specification in Standalone Mode
Pin Connected to
PWMPOL_BASEFREQ Pin
PWM Polarity
Base Frequency
MUX_IN (JP1)
Logic low = on
50 Hz
SPEED (JP2)
Logic high = on
50 Hz
ACCEL (JP3)
Logic low = on
60 Hz
DC_BUS (JP4)
Logic high = on
60 Hz
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
MC3PHAC
CORRECTED PWMs
MOTOR PHASE CURRENT WAVEFORMS
UNCOMPENSATED
COMPENSATED
REMOVES 60 Hz HUM
AND DECREASES I2R LOSSES


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