2711-B5A15

2711-B5A15

2711-B5A15

双极性SPWM是一种常用的SPWM控制方式，其工作原理是在SPWM的基础上增加一个负半周期的正弦波信号，从而实现正负极性的控制。在双极性SPWM控制下，输出电压可以在正半周和负半周分别进行控制，从而提高了电机控制的精度和灵活性。

双极性SPWM控制的基本原理与普通SPWM控制相似，其主要过程包括：

产生参考正弦波信号和三角波信号；

通过比较参考正弦波信号和三角波信号，产生PWM信号；

2711-B5A15 

Honeywell 51403393-100 Disk Tray w/Seagate Scsi Drive

HONEYWELL 51305408-100 UDHI 51305408100

HONEYWELL 30752783-001 Battery Test Card 30752783001

HONEYWELL 30751044-009 Controller II ROM 30751044009

Moyno Progressing Cavity Pump, 2G063G1 CDQ DAA

Moyno 2000 Progressing Cavity Pump G1 , 2E012G1 CDQ3 

Moyno 1000 Progressing Cavity Pump, A2F CSQ DPA

Moyno L Frame Progressing Cavity Pump, 2L8 SSQ3 AAA 

HONEYWELL 30751044-7 Controller II ROM 307510447

HONEYWELL 30731811-001 Output Card 30731811001

HONEYWELL 30735863-002 Switching Card 30735863002

HONEYWELL UDC3500 CONTROL DC3500-RE-1000-204-00000-E0-0

Siemens Magnetic Starter 16AF32BHAQA NEMA 1, 16AH *NIB*

ALLEN BRADLEY 500F-FOB930 SIZE 5 CONTACTOR *NEW*

36" TANNEWITZ Model GHE Vertical Band Saw

YAMATAKE-HONEYWELL 82408456-002 J-CBM55 82408456002

YAMATAKE-HONEYWELL 82408215-001 IBI & A/D 82408215001

HONEYWELL 30731857-001 Terminal Panel 30731857001

ALLEN BRADLEY 500F-BOD Reversing Starter Size 1 *NEW*

Cutler Hammer DH361URK Safety Switch 30A *NEW*

HONEYWELL 51400646-100 Fan Assembly 51400646100

ALLEN BRADLEY 1333-YAB AC DRIVE 3.2KVA 4AMP

Allen Bradley 1771-P2 Power Supply 1771P2

Allen Bradley 1771-A4B I/O Chassis Assembly - 8 Cards

Develcon DS512 Asynchronous Data Set

Cutler Hammer DH361UGK Safety Switch 30A *NEW*

Cutler Hammer HJD3125 Circuit Breaker 125A *NEW*

Cutler Hammer HJD3175 Circuit Breaker 175A *NEW*

Intel Single Board Computer PCB PWA 1001299-07 S

UE UNITED ELECTRIC E 105 3BS 9027 Temperature Control