参数资料
型号: DM183021
厂商: Microchip Technology
文件页数: 31/46页
文件大小: 0K
描述: BOARD DEV PICDEM MC LV
标准包装: 1
系列: PICDEM™
主要目的: 电源管理,电机控制
嵌入式:
已用 IC / 零件: PIC18F,dsPIC30F
主要属性: 3 相无刷 DC(BLDC)电机,1A,LIN,SPI,PWM 接口
次要属性: 图形用户界面
已供物品: 板,软件
产品目录页面: 659 (CN2011-ZH PDF)
PICDEM? MC LV
DEVELOPMENT BOARD
Chapter 7. Using dsPIC DSCs to Run a Sensorless BLDC Motor
7.1
7.2
7.3
INTRODUCTION
The PICDEM MC LV Development Board can be used to run a BLDC motor without a
Hall effect sensor. To find out more and get a full description of the application, refer to
Application Note AN992, “Sensorless BLDC Motor Control Using dsPIC30F2010”
(DS00992). For jumper settings and details on how to connect the motor, refer to
In this chapter, we will briefly explain how a sensorless BLDC motor application is run
using a dsPIC device and describe how to adjust some of the parameters in order to
make specific BLDC motors run. For more details on the hardware and firmware
specifications, refer to Application Notes AN901, “Using the dsPIC30F for Sensorless
BLDC Control” (DS00901) and AN992, “Sensorless BLDC Motor Control Using
dsPIC30F2010” (DS00992). These Application Notes can be found on the Microchip
web site (www.microchip.com).
HIGHLIGHTS
This items discussed in this chapter are:
SENSORLESS CONTROL OF A BLDC MOTOR
To run a BLDC motor without sensors, it is important to sense the rotor magnet position
with reference to the windings on the stator. In order to do this properly, the Back EMF
on the unexcited winding is monitored. As the motor is spun, the voltage waveform on
the three winding phases will be seen, as shown in an idealized manner in Figure 7-1.
FIGURE 7-1:
0
0
0
ZERO-CROSSING DETECTION
30°
Sector
5
0
1
2
3
4
5
0
1
= BEMF Zero Crossing
? 2006 Microchip Technology Inc.
DS51554B-page 27
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相关代理商/技术参数
参数描述
DM183022 功能描述:开发板和工具包 - PIC / DSPIC PICDEM EXPLORER BRD RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压:
DM183022 制造商:Microchip Technology Inc 功能描述:MICROCONTROLLER DEVELOPMENT TOOL
DM183022 制造商:Microchip Technology Inc 功能描述:EXPLORER BOARD KIT PICDEM HPC
DM183023 功能描述:Zigbee/802.15.4开发工具 ZENA Network Analyzer RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:EM35x 频率:2.4 GHz 接口类型:USB 工作电源电压:
DM183023 制造商:Microchip Technology Inc 功能描述:ZENA Network Analyzer