Tag Archives: Potentiometer

+9V TO 60V PWM 2.3A SOLENOID VALVE DRIVER USING DRV101

The DRV101 is a low-side power switch employing a pulse-width modulated (PWM) output. Its rugged design is optimized for driving electromechanical devices such as valves, solenoids, relays, actuators, and positioners. The DRV101 module is also ideal for driving thermal devices such as heaters and lamps. PWM operation conserves power and reduces heat rise, resulting in higher reliability. In addition, adjustable PWM potentiometer allows fine control of the power delivered to the load. Time from dc output to PWM output is externally adjustable. The DRV101 can be set to provide a strong initial closure, automatically switching to a soft hold mode for power savings. Duty cycle can be controlled by a potentiometer, analog voltage, or digital-to-analog converter for versatility. A flag output LED D2 indicates thermal shutdown and over/under current limit. A wide supply range allows use with a variety of actuators.

+9V TO 60V PWM 2.3A SOLENOID VALVE DRIVER USING DRV101 – [Link]

1000 steps Servo motor

FF25RDAIPBH3405.MEDIUM

TheSuperSewcio @ instructables.com shows us how to control a servo motor in high precision using Arduino:

In many project like CNC machines people use stepper motors. They are probably always more expensive than servos. They can rotate 360°, 1 step = 1,8° (mostly). Servos can rotate only from 0° to 180°, 1 step = 1°. But why are they working this way, inside them we will find potentiometer which rotates as servo (up to 180°), but have 1024 steps.

1000 steps Servo motor – [Link]

4 Channel RC Servo Controller Board

4-CHANNEL-RC-SERVO-CONTROLLER-BOARD-003

This PIC microcontroller based RC driver is able to control 4 RC Servo by on board independent 4 potentiometer , 4X3PIN header for RC servo interface, screw terminal for supply input, on board power LED, optional 4X3PIN header connector for external potentiometer.

Features

  • Microcontroller based design for greater flexibility and ease of control
  • Individual servo controlled via onboard preset or external potentiometer
  • Power supply input 5 VDC
  • Screw terminal connector for easy connection of the input power supply
  • Protection diode for reverse supply
  • Berg connector for connection of Servos
  • Power-On LED indicator
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 56.52mm x 64.14 mm
4 Channel RC Servo Controller Board – [Link]

RELATED POSTS

Control accurate incremental voltage steps with a rotary encoder

DI5505f1

by Anthony Smith @ edn.com:

Experimenting with an HF oscillator, I needed to control the varactor diode voltage in precise increments over a 2V-10V range. A buffered potentiometer was the obvious choice, and connecting two pots in series to give coarse/fine control (or using a multiturn pot) would offer improved control over the varactor voltage. However, this approach still didn’t allow me to generate uniform increments and decrements of the control voltage in a reliable, repeatable manner.

Control accurate incremental voltage steps with a rotary encoder – [Link]

Control servo motors with potentiometers and Arduino

FE4VAXPIFY9BOK5.MEDIUM

by break_it_fix_it @ instructables.com:

I needed to be able to control 3 different servo motors by altering the position of 3 potentiometers. There are lots of people out there doing things like this, but I couldn’t find an exact match for everything I needed, so I decided to post up this instructable to bring everything I learned together in one place so that anyone else who wanted to do something like this could get it up and running quickly. This instructable is really a summary of other peoples excellent work and effort.

Control servo motors with potentiometers and Arduino – [Link]