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: Serial Wire Debug (SWD) with four breakpoints and two watchpoints.
Single-cycle multiplier supported.
Memory Protection Unit (MPU) included.
Memory:
Up to 256 kB on-chip flash programming memory with 256 Byte page write anderase.
Up to 36 kB SRAM.
4 kB EEPROM.
ROM API support:
Boot loader with boot options from flash or external source via USART, C_CAN, orUSB
USB drivers
ADC drivers
SPI drivers
USART drivers
I2C drivers
Power profiles and power mode configuration with low-power mode configurationoption
DMA drivers
C_CAN drivers
Flash In-Application Programming (IAP) and In-System Programming (ISP).
Digital peripherals:
Simple DMA engine with 18 channels and 20 programmable input triggers.
High-speed GPIO interface with up to 76 General-Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors, open-drain mode, input inverter, andprogrammable digital glitch filter.
GPIO interrupt generation capability with boolean pattern-matching feature on eight external inputs.
Two GPIO grouped port interrupts.
Switch matrix for flexible configuration of each I/O pin function.
CRC engine.
Quadrature Encoder Interface (QEI).
Configurable PWM/timer/motor control subsystem:
Up to four 32-bit counter/timers or up to eight 16-bit counter/timers or combinations
of 16-bit and 32-bit timers.
Up to 28 match outputs and 22 configurable capture inputs with input multiplexer.
Up to 28 PWM outputs total.
Dither engine for improved average resolution of pulse edges.
Four State Configurable Timers (SCTimers) for highly flexible, event-driven timing
and PWM applications.
SCT Input Pre-processor Unit (SCTIPU) for processing timer inputs and immediate handling of abort situations.
Integrated with ADC threshold compare interrupts, temperature sensor, and analog comparator outputs for motor control feedback using analog signals.
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