6SL3957-6RX44-0AA1

6SL3957-6RX44-0AA1

方波无感BLDC的ADC采样积分控制，电路设计有三相相电压ADC采样电路，每60度电角度区间电机的两相由于半桥有输入电压同时有电感电流，在不增加额外电路的情况下很难获得反电动势电压，而悬浮相由于没有半桥电压输入和电感电流，所以可以从检测该相端电压推导出该相实际的反电动势电压。

所以如果对这个电机控制方法感兴趣的，可以在TI官网上查看该参考设计的软硬件开发资料。

设计上采用下管常开，上管打PWM的策略驱动电机。考虑到电机驱动的PWM duty的大小是变化的，可以根据半桥上管ON的时间长短来决定采样策略，因为如果上管导通时间太短，为了避开MOSFET开通关断的影响，留给采样的时间就变得很少，不利于采样的准确性.

6SL3957-6RX44-0AA1

CUTLER HAMMER CIRCUIT BREAKER JD3250KW 250 AMP 3 P

5  GOULD SHAWMUT AMP TRAP FUSE A75Z550-4TI 550 AMP

 WILLIAMS GATE VALVE 1" CF8M 316 SS CL150 S15F6-316G

US OMRON SYSMAC C28K PROGRAMMABLE CONTROLLER C28K-CDR-A

ALLEN BRADLEY HIGH DENSITY SHORT SCANNER 2755-LD4A1 A

 KITZ GATE VALVE 1" CF8M 316 SS 150UMAM-GRF CL 150

 KITZ GATE VALVE 2" 316 SS CF8M CL 150 150UMAM-GRF

 MARPAC G01 FLANGED BALL VALVE 2" 316 SS CF8M 275CWP

 WILLIAMS GLOBE VALVE 1 1/2" CL 150 316 STAINLESS ST

 ASCO SOLENOID VALVE STEAM EF8222G89 1" 2 WAY NC

 VICKERS HYDRAULIC VALVE 815247 CVI 32 F 2 M 10

 TOSHIBA OPERATOR INTERFACE CPU BOARD T-130

 MIYASHITA BASIC POWER SUPPLY UNIT ZV-40PU1

 VICKERS FLOW CONTROL VALVE FCG-02-1500-50

USED ALLEN BRADLEY BAR CODE DECODER 2755-DS1A SER B

USED OMRON PROGRAMMABLE CONTROLLER CPM1A-40CDT-D-V1

 FOXBORO SENSOR MODULE D0135SN 316L SILICONE

NIP LEAR SIEGLER PCB ALARM BOARD RM41 80030024-1

 IN BOX PARKER HYDRAULIC VALVE D1VW001CNYCF 5000 PSI

 SQUARE D HEAVY DUTY SAFETY SWITCH HU-462 HU462 60 A

 BAILEY/ABB INSERTION PH SENSOR TB557 TB55732600F06

FETTEROLF PUMP PEN PLUNGER HD NUT 20910603000607 316 SS

 ASCO TRI-POINT PRESSURE SWITCH SE12D FOR HAZ LOC

 LINK-BELT PILLOW BLOCK BEARNG PKB22435FH 2-3/16"

 NTN FLANGE MOUNT BEARING UCF216D1

 VICKERS HYDRAULIC VALVE CVCS 50 N B29 10

 JO-BELL LIQUID LEVEL SWITCH KC-107A-7 250ºF

 SKF BALL BEARING 6028

 SEALMASTER PILLOW BLOCK BEARING NP-32R 2" BORE

 LINK-BELT FLANGE BEARING F-B22435H 2-3/16

 GUSHER PUMP D501-N21-C 1725 RPM GPM 20 3 PH

BOSTON GEAR MOTOR FUTF 1/2 HP RPM 1725 PH 3 CMB56U-3

TUTHILL PROCESS PUMP 34G318-5470 HP 1 PH 3 3450 RPM

 BALDOR SINGLE PHASE MOTOR 35G234-602 1725 RPM 1 HP

 BOSTON GEAR MOTOR FUTF 1/2 HP 3 PH 6-61003-51CMB