NXP LPC15xx系列MCU马达控制方案
来源： 作者： 发布时间：2016-09-08 06:28:51 浏览量：LPC1549 LPCXpressoBLDC马达控制板
The LPCXpresso Motor Control Kit makes it possible for you to get started with motor control prototyping immediately.It is a platform for low voltage motor control based on NXP’s MCUs. With this universal platform it is possible to control BLDC, BLAC, stepper and dual brushed DC motors.
图2。LPC1549 LPCXpressoBLDC马达控制板外形图
LPC1549 LPCXpressoBLDC马达控制板主要特性:
LPC1549 ARM Cortex-M3 based microcontroller
256 kB of flash memory, 32 kB of ROM, 4 kB EEPROM, and up to 36 kB of SRAM
Socket for LPC1xxx in PLCC44
Expansion connector for control by LPC1800/LPC4000/LPC2900 families, or other 4 phases (based on NXP PSMN2R6-40YS N-channel MOSFET), accessed via screw terminals
Phase control support 100 % duty cycle
Voltage measurement (on three phases and virtual ground)
Current measurement (on three phases and common low-side)
Input current measurement, including over-current trip
Break functionality
Hall & QEI sensor inputs, connected via screw terminals
Temperature sensor
12 - 30 V input voltage, 17 A max. current (max. 300 W output)
On-board 15 W power supply (+11 V, +5 V, +3.3 V)
USB interface (must be supported by controlled MCU)
Ethernet interface (must be supported by controlled MCU)
CAN interface (must be supported by controlled MCU)
RS422/485 interface
UART-to-USB interface
5-key joystick switch
96 x 64 pixel OLED
低压高频CMOS电流乘法器原理图低压高频CMOS电流乘法器原理图通过调节跨导参数k和参数a，来调节乘法器的增益。参数k和MOS管的尺寸直接相关。减小跨导参数k或MOS管的尺寸，带来了较高的增益和较低的功耗，同时由于与MOS管相关的较
正弦波电压变大，变压器畸变电流急剧增加，请大神分
电路图如上，正弦波频率9KHz，正弦波幅值增加的时候，流过线圈1-3的电流急剧增加，请各位大神分析一下原因。
上传几张波形图：
CH1:变压器1脚和
电弧产生原理图电弧产生原理图也是一个简易高压发生器电路，使用一块固定频率脉宽调制电路TL494 产生方波信号控制MOS 管Q1，Q1 上的交变电流在通过串联的黑白电视机高压包T 的时候升压到2k~10kV，升压后经
大电流电感
在线客服1号