Block diagram
Design considerations
Stepper motor overview
The stepper motor is fitted with a rotor with permanent magnetism and the stator has at least two windings. When the rotor magnetism is consistent with the stator winding, the second winding will be driven. The two windings alternately open and close, which causes the motor to lock in the desired step position. The direction of current through the winding can also be reversed.
In a stepper motor with two stator windings, four steps are separated by 90°. The stepping of the stepper motor movement can be precisely controlled based on the pulses supplied to the stator windings.
The speed control of the stepper motor can be achieved by supplying a pulse frequency to the winding, and the direction of rotation can be changed by a reverse pulse sequence. The pole pieces inside the motor have a number of teeth that help position the rotor relative to the stator. The stator stages of some stepper motors also have teeth.
The stepper motor can be controlled in full step, half step or micro step depending on the control technology used. Simple square pulses control the motor in full step, while advanced control techniques such as pulse width modulation (PWM) can be used for microstepping.
microprocessor
The basic MSP430 MCU works with step-control driver ICs such as the DRV8412 to provide full stepping or up to 16 microsteppings at a very low cost. More complex stepper motor control is available through Stellaris® or C2000TM MCUs. Onboard peripherals such as ADC and PWM create a highly integrated solution that meets all application requirements for stepper motors.
Interface/connection
Traditional analog RS-232/RS-485 interfaces have always been a common choice for motor control applications. Looking ahead, designers will integrate mainstream interfaces such as Ethernet, USB and CAN into their products.
TI is committed to providing solutions for both traditional and emerging industrial interfaces. For example, TI recently introduced the world's first isolated CAN transceiver ISO1050.
Power management
Texas Instruments offers power management IC solutions ranging from standard ICs to high performance plug-ins, transformers, digital power MOSFETs and integrated power modules.
From AC/DC and DC/DC power supplies, linear regulators and non-isolated switching DC/DC regulators to PMIC and power and display solutions, Texas Instruments' power management IC solutions can help you with Project Development.
Rectangular I/O Connectors
Antenk offers an expansive product line of I/O connectors including USB, HDMI, D-Sub, Modular Jacks, SFP, QSFP+, CXP, iPass+, iPass+ HD and more. In addition to standard I/O connectors and matching cable assemblies.Except a comprehensive range of standard Input/Output connector solutions for high-speed electronic data communication, Antenk engineers can design customized solutions. This extensive selection of I/O connectors and matching cable assemblies includes numerous next-generation solutions.All of our I/O connectors feature a variety of orientation options, as well as PCB and cable mount offerings.
Antenk develop and specify high-performance I/O's throughout a wide variety of industries. These include SAS, SATA, PCIe, HSSG, FIBRE CHANNEL, INFINIBAND, IEC, CEA, IEEE, VESA, USB and many more.
I/O Connectors Application
Consumer / PC Products
Networking / Telecommunications Products
Mobile Products
Industrial Products
Antenk can deliver standard and custom options of the following I/O connectors:
1394 Connector
Centronic Connector
D-Sub Connector
DVI Connector
Display Port Connector
HDMI Connector
Half Pitch SCSI Connectors
USB Connector
V.35 Connector
OBD Connector
I/O Connectors General Specifications
ELECTRICAL CHARACTERISTICS
Contact Current Rating:5Amperes.
Dielectric Withstanding.
Dielectric Withstanding Voltage:AC 1000Vr.m.s.
Insulation Resistance:500 Megohms Minimum at DC500V.
Contact Resistance:25 Milliohms Maximum.
Operating Temperature:-55℃~105℃.
MATERIALS:
Contacts:Brass.
Insulator:PBT,UL94V-O Rated.
Shell:Cold Rolle Steel.
Metal Watertight Frame:PBT,UL94V-0.
O-Ring:Silicone.
NOTE:
Position:09PIN,15PIN,25PIN,37PIN.
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ShenZhen Antenk Electronics Co,Ltd , https://www.atkconnectors.com