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DRV8870EVM 产品设计参考手册 - TI（德州仪器）
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TI（德州仪器）
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开发套件
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TEXAS INSTRUMENTS DRV8870EVM 评估电路板, DRV8870, PWM电机驱动器 新
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DRV8870EVM数据手册
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若手册格式错乱，请下载阅览PDF原文件
DK-LM3S-DRV8312 BASEBOARD
HARDWARE REFERENCE GUIDE
Rev. 1.0
Board Power
The board is separated into two power domains*: (1)the low voltage Controller Power
domain powers the controller and the logic circuit present on the board, and (2) the medium
voltage power delivery line that is used to carry the medium voltage and current such as the
DC power for the Inverter (also referred to as DC Bus).
1)
Controller Power comprised of the 12 V, 5 V, and 3.3 V that the board uses to power the
controller and the logic and sensing circuit present on the board. This power can be sourced
from two places (Jumper JP1 selects between the two):
• +12V
DC control power entry: Connect an external bench supply with 1A current limit
here
• On board regulator, VR1: +12V is regulated from DC bus power via an on-board buck
regulator
2) DC Bus Power is the medium voltage line – up to 52.5V - that provides the voltage to the
inverter stage to generate three phases to control the motor(s). Connect supplied 24 V
regulator to J9.
For step-by-step instructions on configuring the DRV8312 baseboard for use with a Stellaris
controlCARD, see the DK-LM3S-DRV8312 Read Me First document.
DRV8312 Functional Block Diagram
Figure 5. DRV8312 Functional Diagram
6
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