555+timer+motor+speed+control+circuit

Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt

Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt

... root-locus domain. Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 24 Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System 1. Introduction This ... well-behaved speed- torque characteristics, and adaptability to various types of control methods. DC motors are classified as either integral-horsepower motors (≥ 1 hp) or fractional-horsepower motors ... power amplifier. Motor speed is measured using an analog tachometer. Figure 2. Physical System Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 5 ...

Ngày tải lên: 25/01/2014, 13:20

29 724 0
IC 555 - Timer và những ứng dụng

IC 555 - Timer và những ứng dụng

... hãng CMOS sản xuất .Sau ñây là bảng thông số của 555 có trên thị trường : + ðiện áp ñầu vào : 2 - 18V ( Tùy từng loại của 555 : LM555, NE555, NE 7555 ) + Dòng ñiện cung cấp : 6mA - 15mA + ðiện ... IC 555 - Timer và những ứng dụng 555 là một loại linh kiện khá là phổ biến bây giờ với việc dễ dàng tạo ñược xung ... chỉ là những thông số cơ bản của 555. Còn những thông số khác các pác tham khảo datasheet! 1 : Giới thiệu, sơ ñồ khối, sơ ñồ nguyên lý, chân của 555 IC thời gian 555 ñược du nhập vào những năm...

Ngày tải lên: 06/11/2013, 22:15

9 5.9K 29
Power converter control circuits for two mass vibratory conveying system with electromagnetic drive simulations and experimental results IEEE trans

Power converter control circuits for two mass vibratory conveying system with electromagnetic drive simulations and experimental results IEEE trans

... with electromagnetic drive and power converter control circuits for its optimal control DESPOTOVIC ´ AND STOJILJKOVIC ´ : POWER CONVERTER CONTROL CIRCUITS FOR TWO-MASS VCS 459 Fig. 11. Amplitude ... and transient regimes with varying conveying mass is described. A. Phase Control Simulation circuit with phase angle control of the EVA coil is given in Fig. 8. The load mass, which is oscillating, ... power transistor drive circuit. Sine half-wave current reference value is obtained by precise rectification of signal difference from the voltage controlled os- cillator and controller output. This...

Ngày tải lên: 03/01/2014, 19:16

14 600 0
Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx

Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx

...  Overview of Gas Springs 2 . 21369 . 2007 . 1 Speed Control TM ô SPC Gas Springs, cushioned 2486.12. FIBRO SPC Gas Springs Speed Control TM ô are designed to reduce or eliminate the ... caused by the increased return travel speed in high speed presses (link drive presses). SPC Gas Springs feature an integral return travel delay which reduces the speed of the gas spring to 0.4 m/s ... 2 . 21370 . 2007 . 1 3 Speed Control TM ô SPC Gas Springs, 2486.12. cushioned subject to alterations Force in daN at Piston...

Ngày tải lên: 22/01/2014, 02:20

4 334 0
Practical Troubleshooting of Electrical Equipment and Control Circuits pptx

Practical Troubleshooting of Electrical Equipment and Control Circuits pptx

... Electrical Equipment and Control Circuits Figure 2.8 Power and control circuit for an inverter drive Devices, symbols, and circuits 27 A few simple control circuits are shown in ... start/stop control of AC drives 166 6.11 Control wiring for VSDS 169 6.12 Commissioning VSDs 170 7 Troubleshooting control circuits 173 7.1 Basic control circuits 173 7.2 Ladder logic circuits ... single-phase AC motors 78 4.4 DC motors 81 4.5 Motor enclosures 85 4.6 Motor terminal identification and connection diagram 86 4.7 Motor rating and insulation types 88 4.8 Operating a motor for...

Ngày tải lên: 07/03/2014, 08:20

248 541 2
Motor control sensor feedback circuits

Motor control sensor feedback circuits

... stable, reliable and cost-effective control system. Further details on motor control circuits and sensors are provided in several books, including Motor Control Electronics” (10). In addition, ... role in a motor control system. These sensors provide information on the current, position, speed and direction of a rotating motor. In addition, the sensors improve the reliability of the motor ... Parekh, Rakesh, “AN889 - VF Control of 3- Phase Induction Motors using PIC16F7X7 Microcontrollers”, Microchip Technology Inc., 2003. 10. Valentine, Richard, editor, Motor Control Elec- tronics Handbook”,...

Ngày tải lên: 03/01/2014, 18:55

18 457 0
Xem thêm
w