San Diego, Calif.—ROHM Electronics has introduced an H-bridge driver IC line, offering designers a simple upgrade path to pulse-width modulation (PWM) speed control using either analog or digital ...

For receiving PWM indications, motor driver’s IC is connected to the micro-controller for distributing much wanted output for pace control of a small DC machine. In addition the DC motor speed control ...

In designing a simple spectroscopy setup, we needed to synchronize the speed of a small, inexpensive dc motor precisely to 6000 rpm (100 Hz). Our first idea was to take a phase-frequency detector type ...

It’s an excellent way to learn about both PWM motor control and the use of 555 timers, all with a very low parts cost and readily available components. We’ve seen such setups before, used as ...

Pulse-width modulated motor drives are becoming the dominant method of variable speed motor control, and are being used not only in industry, but in applications as diverse as electric vehicles ...

Many applications using miniature brushed DC motors require motors to operate at more than one load point or through specific load cycles. Running a motor at usable load points requires a variable, ...

Fan speed control Due to the high tolerances, when using thedirect PWM method the speed of fans has to be controlled. Maintainingthe nominal speed of the fan can be done through open loop and ...

Electronic speed controllers for drones are essential to provide motor speed control in low and medium size commercial drones. One of the most widely used solution is based on a sensorless FOC ...

Rotational Speed When you write software to control a stepper motor, you must first know how many pulses the motor needs to turn a full rotation.

Continuous pressure rise can be obtained by controlling the magnetic force of solenoid valve, which needs current control of the solenoid valve. In this regard, we proposed using pulse width ...