App note from Precision Microdrives teaching you ways to drive vibration motors. Link here Using a PWM signal to drive vibration motors can enable high-performance vibration control with relative ease. PWM signals are a common feature in many microcontrollers, and simple programs can adjust their frequency and Duty Cycle. These programs can be used to […]
Tag Archives: DC motor
App note: Using SPICE To model DC motors
App note from Precision Microdrives helping you model DC motors in SPICE. Link here SPICE (Simulation Program with Integrated Circuit Emphasis) is an open-source program for simulating electrical circuits. It enables engineers to model the behaviour of their circuits in software, which reduces prototyping costs and time. As DC motors have mechanical properties – i.e. […]
App note: Voltage vs. output speed vs. torque on DC motors
App note from Precision Microdrives about DC motor capabilities and their uses. Link here Why Change Torque? The most obvious benefit of varying the torque is to maintain a constant speed when the motor’s load varies, keeping in mind the interdependent nature of speed, torque, and voltage. Although this example may be outdated, audio cassettes […]
Using DC motors to power computers
Electric generator experiment from HomoFaciens: The generators I am using are in fact geared DC motors, left over from a project with my sponsor RS Components. The modern abacuses being powered during my experiments are a Raspberry Pi Model, a SIMATIC IOT2020 and an Arduino Uno. A 2×16 characters LCD is used to display results. […]
App note: Electrical techniques for using different power sources on vibration motors
Application bulletin from Precisionmircodrives on powering vibration motors from different and some cases fluctuating power sources. Link here (PDF) As vibration motors have a wide variety of applications, they are often integrated into systems which have different power sources. A common concern, in terms of power supply, is adjusting the source power supply voltage to […]
Automatic fan controller for server racks
Dilshan Jayakody published a new build: In this post we describe fan controller which we designed for our 9U wall mount server cabinet. This fan controller is designed to drive a 12V DC cooler fan with pre-configured intervals or by monitoring the temperature of the server cabinet. Core components of this fan controller is CD4060 […]
UC3844 base motor speed controller
Dilshan Jayakody writes: UC3844 is popular current mode controller which is commonly found on DC-to-DC converter circuits and switch mode power supplies. This motor speed controller is also based on UC3844 and it is specifically design to drive 20V – 24V DC motors. In this given configuration UC3844 produces (approx.) 50kHz to 240kHz PWM output […]
Driving a DC motor using software PWM with AVR ATmega
Davide Gironi writes: This library is an update of the software PWM driver you can find here. This update implements also progressive start / stop features. So, with this one, you can drive up to 4 motors independently controlling: speed, direction, slow start / stop
Precise control of DC motors using an FPGA
Chris wrote extensive documentation on how to implement precise control of DC motors using FPGAs. The goal of this project is to build a simple one input, one output system that will control a motor. The control input will come from a trimpot and the FPGA or CPLD’s job will be to use the input […]