Resistor Control
Resistor Control

How to control bipolar stepper motor using parallel port?
I learned a stepper motor of the read head of the CD ROM. Controls linear motion of the head. But can any body help me teach the fundamentals of control of this engine. It has four wires and I want to fight it with parallel port. Is it possible to connect the motor with parallel port directly, without using any resistors, capacitors and transistors? Please help me I need know this for my project work ..
No, you will need some kind of driver between the port and the engine because the port can supply only a number very small current. But it can be as simple as a single chip with multiple transistors, such as - http://electronics-diy.com/stepper_motors.php However, this circuit not work well with engines - yours has 4 cables, which probably means it is a 2-winding, bipolar type, which requires a full-bridge unit. View http://www.cs.uiowa.edu/ ~ Jones / step / A types.html full-bridge unit has a high and a low side, which complicates things a bit. See bipolar practice "driver" section http://www.cs.uiowa.edu/ Jones ~ / step / circuits.html
PD-patch arduino-resistor control
![]() |
![]() 20 BIPOLAR LEDS HO SCALE CONTROL PANELS 5MM 3 leads US $16.45
|
![]() Ademco 4219 Zone Expander US $32.25
|
![]() ADCOM GFT 555 II US $50.00
|
![]() ZENITH TRANS OCEANIC TRANSOCEANIC SHORTWAVE RADIO B 600 US $107.24
|
![]() Manley Voxbox Channel Strip Preamp EQ Compressor US $2,250.00
|
![]() LM3914 LED Display Driver IC Kit 1 1450 US $8.99
|
| Powered by phpBay Pro |
![]() |
Extech 380560 High Resolution Precision Milliohm Meter
Sale Price: $469.99 |
![]() |
3M 00051138717292 2056 W/Resistor Nonmark Groundng Assembly
Sale Price: $20.29 |
![]() |
3M 00051138112196 2051 W/Megohm Resistor 3m Shoe Ground Assembly
Sale Price: $15.14 |
![]() |
1718 Speed Control Resistors
Sale Price: $1.00 |
![]() |
Phoenix Gold VRR-120 BONE 120 Watt Transformerless Volume Control in Bone List Price: Sale Price: $35.67 You save: $15.47 (30%) Average Rating:
|
![]() |
OSD Audio 12 Zone Autoformer Speaker Selector Dual Source Impedance Matching
Sale Price: $149.95 |
![]() |
GTL Sound Labs AE 2020 Volume Control List Price: Sale Price: $45.00 |
![]() |
Standard Motor Products Blower Motor Resistor List Price: Sale Price: $60.55 You save: $33.31 (35%) |
![]() |
Motorcraft DY893 Ignition Control Control Module List Price: Sale Price: $64.44 You save: $17.89 (22%) |
![]() |
Standard Motor Products Blower Motor Resistor
Sale Price: $6.75 |


US $16.45














