freescale公司的三相BLDC/PMSM低压马达控制方案接纳MC9S08AC16系列器件.这种8位MCU接纳增强的HCS08内核,具有低本钱和高性能,系列有各种模块,存储器容量,存储器范例和封装形式.MC9S08AC16和MC9S08AC8用于消费类电子和工业,MC9S08AW16A和MC9S08AW8A用于汽车电子.本京电港论坛文章先容了MC9S08AC16系列主要特点,方框架图,以及三相BLDC和PMSM低压马达控制方案主要特点,详细电路原理图纸以及质料清单(BOM). 3-Phase BLDC/PMSM Low- Voltage Motor Control Drive The MC9S08AC16 Series devices are members of the low-cost, high-performance HCS08 Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the enhanced HCS08 core and are available with a variety of modules, memory sizes, memory types, and package types. MC9S08AC16 Series Devices • Consumer & Industrial ― MC9S08AC16 MC9S08AC8 • Automotive ― MC9S08AW16A ― MC9S08AW8A 8-Bit HCS08 Central Processor Unit (CPU) • 40-MHz HCS08 CPU (central processor unit) • 20-MHz internal bus frequency • HC08 instruction set with added BGND instruction • Background debugging system • Breakpoint capability to allow single breakpoint setting during in-circuit debugging (plus two more breakpoints in on-chip debug module) • Debug module containing two comparators and nine trigger modes. Eight deep FIFO for storing change-of-flow addresses and event-only data. Debug module supports both tag and force breakpoints. • Support for up to 32 interrupt/reset sources Memory Options • Up to 16 KB of on-chip in-circuit programmable FLASH memory with block protection and security options • Up to 1 KB of on-chip RAM Clock Source Options • Clock source options include crystal, resonator, external clock, or internally generated clock with precision NVM trimming System Protection • Optional computer operating properly (COP) reset with option to run from independent internal clock source or bus clock • Low-voltage detection with reset or interrupt • Illegal opcode detection with reset • Illegal address detection with reset Power-Saving Modes • Wait plus two stops Peripherals • ADC ― 8-channel, 10-bit analog-to-digital converter with automatic compare function • SCI ― Two serial communications interface modules with optional 13-bit break • SPI ― Serial peripheral interface module • IIC ― Inter-integrated circuit bus module to operate at up to 100 kbps with maximum bus loading; capable of higher baud rates with reduced loading • Timers ― Three 16-bit timer/pulse-width modulator (TPM) modules ― Two 2-channel and one 4-channel; each has selectable input capture, output compare, and edge-aligned PWM capability on each channel. Each timer module may be configured for buffered,centered PWM (CPWM) on all channels • KBI ― 7-pin keyboard interrupt module Input/Output • Up to 38 general-purpose input/output (I/O) pins • Software selectable pullups on ports when used as inputs • Software selectable slew rate control on ports when used as outputs • Software selectable drive strength on ports when used as outputs • Master reset pin and power-on reset (POR) • Internal pullup on RESET, IRQ, and BKGD/MS pins to reduce customer system cost Package Options • 48-pin quad flat no-lead package (QFN) • 44-pin low-profile quad flat package (LQFP) • 42-pin shrink dual-in-line package (SDIP) • 32-pin low-profile quad flat package (LQFP) 三相BLDC/PMSM低压马达控制驱动方案 Freescale’s 3-Phase BLDC/PMSM Low-Voltage Motor Control Drive is a 3-phase power stage that will operate with DC input voltages in the range 12C24 V, 4 A. Together with the daughter boards, it provides a software-development platform that allows algorithms to be written and tested without designing and building any hardware. It supports a variety of algorithms for PMSM and brushless DC (BLDC) motors. The 3-Phase BLDC/PMSM Low-Voltage Motor Control Drive contains reverse-polarity protection circuitry, MOSFET-gate-drive circuits, analog-signal conditioning, low-voltage power supplies and bridge MOSFETs. The power devices do not need to be mounted on a heatsink. There are controller daughter boards available with these controllers: •MC56F8013/23 ― LQFP32 •MC9S08AC16 ― LQFP44 •MCF51AC256 ― LQFP80 •MC9S08MP16 ― LQFP48 •MC56F8006 ― LQFP32 板主要特点: •Power supply voltage input 12C24 V DC, extended up to 50 V (see chapter 2.2 Electrical Characteristics for details) •Output current 4 A •Power supply reverse polarity protection circuitry •3-phase bridge inverter (6 MOSFET’s) •3-phase MOSFET gate driver with overcurrent and undervoltage protection •3-phase and DC-bus-current-sensing shunts •DC-bus voltage sensing •3-phase back-EMF voltage-sensing circuitry •Low-voltage on-board power supplies •Encoder/hall sensor sensing circuitry •Motor power and signal connectors •2 connectors for daughter board connection •CAN physical layer •USB interface •User LED, power-on LED, 6 PWM LED diodes, and SCI activity LED diodes •Up, down, toggle switches •Reset push-button
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