Motors

Motor Noise Suppression

Electric motors are electrically noisy, the sparks commonly seen at the brushes are a source of radio frequency interference [RFI] that can interfer with both the host controller and other systems. Good motor noise suppression Read More

Motors in Series and Parallel

Motor controllers have no way of knowing how many motors they are driving, it’s the total load that matters [see our motor current calculator ]. So you can use several motors, but you then have Read More

Motor Manufacturers

We are often asked to recommend motor manufactures. Here is a list of manufactures that we know about [in no particular order]. Parvalux Hydrogen appliances Saietta Engineering Ampflow Fracmo [closed in summer 2016] Crystalyte motors Read More

Motor Matching

There are two situations where the matching of multiple motors of the same make should be considered. The first is when they are rotating in the same direction, the second is when they are rotating Read More

Motor Examples

Motor examples. Certain motors are very popular and we keep getting asked about them, this section gives our findings on a few of them. We are not the manufacturers and our opinions are just that Read More

Motor Types [detail]

There are several electric motor types that use brushes for d.c. operation. Permanent magnet motors These have two wires. Reversing th polarity of the applied voltage reverses the rotation. Shunt wound motors These have 4 Read More

Motor Types Overview

Permanent Magnet Motors In a Permanent Magnet motor a coil of wire (called the armature) is arranged in the magnetic field of a permanent magnet in such a way that it rotates when a current Read More

Motor Rating Background Information

Introduction It is not always easy to understand a manufacturer’s specification for a particular motor, not least because different manufactures vary as to how conservative they are in specifying their motors. This page is intended Read More