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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. 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 ...

  5. 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 ...

  6. 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 ...

  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 ...

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