參數(shù)資料
型號(hào)： MC3PHAC
廠商： Motorola, Inc.
英文描述： 3-Phase AC Motor Controller
中文描述： 三相交流電機(jī)控制器
文件頁(yè)數(shù)： 14/44頁(yè)
文件大?。?/td> 724K
代理商： MC3PHAC
MC3PHAC/D
14
3-Phase AC Motor Controller
MOTOROLA
Selectable PWM Frequency
—
The MC3PHAC accommodates four discrete
PWM frequencies and can be changed dynamically while the motor is running.
This resistor can be a potentiometer or a fixed resistor in the range shown in
Table 4
. In standalone mode, the PWM frequency is specified by applying a
voltage to the MUX_IN
pin while the PWMFREQ_RxD
pin is being driven low.
Table 4
shows the required voltage levels on the MUX_IN
pin and the
associated PWM frequency for each voltage range.
NOTE:
The PWM frequencies are based on a 4.00 MHz frequency applied to the
oscillator input.
Table 4. MUX_IN Resistance Ranges
and Corresponding PWM Frequencies
Selectable PWM Dead Time
—
Besides being able to specify the PWM
frequency, the blanking time interval between the on states of the
complementary PWM pairs can also be specified. Refer to the graph in
Figure 9
for the resistance value versus dead time.
Figure 9
assumes a
6.8 k
±
5% pullup resistor. In standalone mode, this is done by
supplying a voltage to the MUX_IN pin while the DT_FAULTOUT
pin is being
driven low. In this way, dead time can be specified with a scaling factor of
2.075
μ
s per volt, with a minimum value of 0.5
μ
s. In PC master software mode,
this value can be selected to be anywhere between 0 and 32
μ
s.
In both standalone and PC master software modes, the dead time value can be
written only once. Further updates of this parameter are locked out until a reset
condition occurs.
Speed Control
—
The synchronous motor frequency can be specified in real
time to be any value from 1 Hz to 128 Hz by the voltage applied to the SPEED
pin. The scaling factor is 25.6 Hz per volt. This parameter can also be controlled
directly from PC master software in real time.
The SPEED
pin is processed by a 24-bit digital filter to enhance the speed
stability in noisy environments. This filter is only activated in standalone mode.
Acceleration Control
—
Motor acceleration can be specified in real time to be
in the range from 0.5 Hz/second, ranging to 128 Hz/second, by the voltage
applied to the ACCEL
pin. The scaling factor is 25.6 Hz/second per volt. This
parameter can also be controlled directly from PC master software in real time.
Voltage Input
PWM Frequency
0 to 1 V
5.291 kHz
1.5 to 2.25 V
10.582 kHz
2.75 to 3.5 V
15.873 kHz
4 to 5 V
21.164 kHz
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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MC3PHACVFA 制造商:Freescale Semiconductor 功能描述:MCU 8BIT HC08 CISC 8KB FLASH 5V 32LQFP - Trays 制造商:Rochester Electronics LLC 功能描述:8BIT MCU, 8K FLASH OTP - Bulk
MC3PHACVFAE 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 8B MCU 8K FLASH OTP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
MC3PHACVP 制造商:Freescale Semiconductor 功能描述:MCU 8BIT HC08 CISC 8KB FLASH 5V 28PDIP - Rail/Tube 制造商:Freescale Semiconductor 功能描述:Controller IC
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