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L6230和STM32F302R8三相马达控制平台方案
文章来源: 更新时间:2016/3/21 11:21:00
ST公司的L6320是具有过流保护的DMOS全集成三相马达驱动器,包括有绝缘的DMOS功率晶体管和CMOS与双极电路,工作电压从8V到52V,峰值电流2.8A(1.4A RMS),工作频率高达100kHz,非常适合用在磁场定向控制(FOC)应用如BLDC马达驱动,正弦/六步驱动和磁场定向控制驱动系统.本文介绍了L6230主要特性,框图,几种典型应用电路,以及STM32 NUCLEO Pack FOC和六步马达控制平台P-NUCLEO-IHM001主要特性,框图,电路图,材料清单和PCB元件布局图.
The L6230 is a DMOS fully integrated threephasemotor driver with overcurrent protection,optimized for FOC application thanks to theindependent current senses.
Realized in BCDmultipower technology, thedevice combines isolated DMOS PowerTransistors with CMOS and bipolar circuits on thesame chip. An uncommitted comparator with open-drainoutput is available.
Available in PowerSO36 and VFQFPN-32 5x5packages the L6230 features a non dissipativeovercurrent protection on the high side powerMOSFETs and thermal shutdown.

L6230主要特性:
■ Operating supply voltage from 8 to 52 V
■ 2.8 A output peak current (1.4 A RMS)
■ RDS(on) 0.73 Ω typ. value @ TJ = 25 ℃
■ Integrated fast free wheeling diodes
■ Operating frequency up to 100 kHz
■ Non dissipative overcurrent detection andprotection
■ Cross conduction protection
■ Diagnostic output
■ Uncommitted comparator
■ Thermal shutdown
■ Under voltage lockout

L6230应用:
■ BLDC motor driving
■ Sinusoidal / 6-steps driving
■ Field oriented control driving system

图1.L6230框图

图2.L6230磁场定向控制(FOC)应用电路

图3.L6230六步电流控制应用电路

图4.L6230六步零交叉检测应用电路

STM32 NUCLEO Pack FOC和六步马达控制平台P-NUCLEO-IHM001
STM32 Nucleo Pack FOC and 6-step motor control platform for 3-phase low voltage motor The STM32 NUCLEO Pack (P-NUCLEO-IHM001) is a motor control kit based on X-NUCLEO-IHM07M1 and NUCLEO-F302R8 boards. This platform provides a motor control solution for low voltage three-phase DC brushless motor. It is based on L6230 driver (belonging to STSPIN family) and on STM32F302R8 MCU. The L6230 driver is a DMOS fully integrated device for three-phase brushless PMSM motor, with integrated overcurrent and thermal protection.
The STM32F302R8 is a 32-bit microcontroller based on a high-performance ARM®Cortex® -M4 32-bit RISC core, with floating point unit (FPU), operating at a frequency of up to 72 MHz and embedding an advanced analog peripheral set.The X-NUCLEO-IHM07M1 board is fully configurable and ready to support different closed loop control, FOC or 6-step, based on sensorless or sensor mode, and it is compatible with three shunts or single shunt for current sense measuring.The NUCLEO-F302R8 board provides an affordable and flexible way for users to try out new concepts and build prototypes with STM32 MCU.An external power supply (8 V min; 12 V max) is required to power the kit. It does not require any separate probe as it integrates the ST-LINK/V2-1 debugger and programmer.

FOC和六步马达控制平台P-NUCLEO-IHM001主要特性:
X-NUCLEO-IHM07M1:
Three-phase driver board for BLDC/PMSM motors based on L6230
Nominal operating voltage range from 8 V to 48 V dc
2.8 A output peak current (1.4 A RMS)
Non dissipative overcurrent detection and protection
Full compatible with ST 6-step or ST FOC control algorithm
Full support for sensorless and sensor mode
3-Shunt and 1-Shunt configurable jumpers for motor current sensing
Hall/encoder motor sensor connector and circuit
Potentiometer available for speed regulation
Compatible with STM32 Nucleo boards
Equipped with ST morpho connectors
NUCLEO-F302R8:
STM32F302R8 32-bit Microcontroller based on Cortex® -M4 core (72 MHz max) with 64-Kbyte Flash memory and 16-Kbyte SRAM
Two types of extension resources: ArduinoUNO Revision 3 connectivity and ST morpho extension pin headers for full access to all STM32 I/Os
Mbed-enabled (http://mbed.org)
On-board ST-LINK/V2-1 debugger/programmer with SWD connector: selection-mode switch to use the kit as a standalone ST-LINK/V2-1
two push buttons: USER and RESET
Three-phase motor:
Bull-Running model BR2804-1700 kV
Nominal voltage 11.1 V dc (battery up to 3S)
Maximum DC current: 5 A
7 pole pairs
Max speed 19000 RPM

图5.FOC和六步马达控制平台P-NUCLEO-IHM001外形图
The information listed below shows the main board specification data and parameters set for the X-NUCLEO-IHM07M1 expansion board included in the P-NUCLEO-IHM001 kit: 
3-phase driver board for BLDC/PMSM Motors 
Nominal operating voltage range from 8 V to 48 V DC 
2.8 A output peak current (1.4 A RMS)(a) 
Operating frequency up to 100 kHz 
Non dissipative overcurrent detection and protection 
Cross conduction protection 
Thermal measuring and overheating protection 
Full compatible with ST 6-Step or ST FOC control algorithm 
Full support for sensorless and sensor mode 
3-shunt and 1-shunt configurable jumpers for motor current sensing 
Hall/encoder motor sensor connector and circuit 
Debug connector for DAC, GPIOs, etc. 
Potentiometer available for speed regulation 
Fully populated board conception with test points 
User LED 
Compatible with STM32 Nucleo boards 
Equipped with ST morpho connector 
PCB type and size:
– Material of PCB - FR-4
– 4 layers layout
– Copper thickness: 70 μm (external layer), 35 μm (internal layer)
– Total dimensions of the expansion board: 70 mm x 66 mm

图6.马达控制平台P-NUCLEO-IHM001系统架构图

图7.马达控制平台P-NUCLEO-IHM001电路图:电流检测调理电路

图8.马达控制平台P-NUCLEO-IHM001电路图:传感器和并联电阻电路

图9.马达控制平台P-NUCLEO-IHM001电路图:L6230驱动器和BEMF检测电路

图10.马达控制平台P-NUCLEO-IHM001电路图:STM32 MCU引脚
马达控制平台P-NUCLEO-IHM001材料清单:



图11.马达控制平台P-NUCLEO-IHM001 PCB顶层元件布局图


 
 
 
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