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  2. ULN2003A - Wikipedia

    en.wikipedia.org/wiki/ULN2003A

    Typical usage of the ULN2003A is in driver circuits for relays, solenoids, lamp and LED displays, stepper motors, logic buffers and line drivers. A ULN2003 installed in a breakout board to be used as a unipolar stepper motor driver with a 28BYJ stepper motor on the left.

  3. Stepper motor - Wikipedia

    en.wikipedia.org/wiki/Stepper_motor

    A unipolar motor has twice the amount of wire in the same space, but only half used at any point in time, hence is 50% efficient (or approximately 70% of the torque output available). Though a bipolar stepper motor is more complicated to drive, the abundance of driver chips means this is much less difficult to achieve.

  4. List of 7400-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_7400-series...

    hex 2-input NAND driver 20 DM74AS1804: 74x1805 6 hex 2-input NOR driver 20 DM74AS1805: 74x1808 6 hex 2-input AND driver 20 DM74AS1808: 74x1811 1 FM, MFM, and DM encoder / decoder, data rates up to 20 MHz 24 74LS1811: 74x1812 1 SerDes with ECC and CRC, data rates up to 30 MHz three-state 48 74LS1812: 74x1821 1 10-bit bus interface flip-flops ...

  5. Driver circuit - Wikipedia

    en.wikipedia.org/wiki/Driver_circuit

    The driver ADP3418 chip (bottom left), used for driving high-power field transistors in voltage converters. Above it is seen next to such a transistor (06N03LA), probably driven by that driver. In electronics , a driver is a circuit or component used to control another circuit or component, such as a high-power transistor , liquid crystal ...

  6. Unipolar motor - Wikipedia

    en.wikipedia.org/wiki/Unipolar_motor

    A unipolar motor (also called homopolar motor) is a direct current (DC) motor typically with slip-rings on each end of a cylindrical rotor and field magnets or a DC field winding generating a magnetic field on the stator. The rotor has typically not a winding but just straight connections in axial direction between the slip-rings (e.g. a copper ...

  7. List of 4000-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_4000-series...

    The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...

  8. List of LM-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_LM-series...

    The following is a list of LM-series integrated circuits. Many were among the first analog integrated circuits commercially produced since late 1965; [1] some were groundbreaking innovations [opinion]. As of 2007, many are still being used. [2] The LM series originated with integrated circuits made by National Semiconductor.

  9. Motor controller - Wikipedia

    en.wikipedia.org/wiki/Motor_controller

    A motor controller is a device or group of devices that can coordinate in a predetermined manner the performance of an electric motor. [1] A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and electrical ...