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Category: Electronics

January 15, 2021January 15, 2021 by Galya Powell

Replacement of motor and repair of garage door in Arddlin-Wales.

A few days after the New Year we fitted a Gliderol manufactured GRD motor with two handsets on a garage door in Arddlin-Wales. The old motor did not work, although the door was installed relatively recently by another supplier and customers, an elderly couple suffered from opening their garage, as an additional inconvenience, the alarm… Read More

Electronics Leave a comment
January 15, 2021January 15, 2021 by Galya Powell

Fold-up / Roll-up door motor installation in Liverpool.

Last week we installed a motor on a garage door in Liverpool. The door is a Fold-up / Roll-up type, which was opened manually. Our customers have two small, wonderful children, who, however, play too often with the door and for their safety, as well as to create additional comfort, our customers called us with… Read More

Electronics Leave a comment
October 30, 2019October 30, 2019 by Jason Powell

Roller Door, rapid action, Indupart

Indupart supply a three phase controller with their rapid action Italian made doors. Today I attended a job where a recurrent problem needed solution; and, a simple thing had to be done just to make the door move to the floor. The door was able to move up okay, but could not move down more… Read More

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January 4, 2019January 4, 2019 by Jason Powell

Tubular Induction Motors and Stall Detection

Chester amphitheatre

I attach a video demonstration of a recent project. The tubular motor for roller blinds encloses a small induction motor. Due to its size, it gets hot very quickly. It has various built in features: Thermal overload protection Built in brake to allow doors to remain open or half-open Capacitor for fluent start and run… Read More

Electronics, Uncategorized 1 Comment
December 21, 2018 by Jason Powell

An Electric Car Motor

Yes, this motor is a beauty. While playing one of Bach’s two part Inventions the other day, I heard my washing machine give out a huge groan. I had left it on, rolling about while I played the piano. On concluding my playing, I went into the kitchen to find a pall of smoke and… Read More

Electronics, Uncategorized 1 Comment
November 28, 2018November 28, 2018 by Jason Powell

SDI develops & manufactures control panels for doors and shutters

SDI design circuit boards for – among other things – garage door control. The PCB here is photographed on an engineer’s formica table; that is a consequence of the honest marketing skills of an engineer, I am sure. The board shown is the main control system for our Symbolic Instruments panel. Populated sparingly as shown,… Read More

Electronics, Uncategorized 1 Comment
August 5, 2018August 5, 2018 by Jason Powell

Random Number Generator, R&D

The following project presents a hardware device to produce random numbers. This is not an easy thing to achieve in any digital device. Software alone cannot produce random numbers. Why we should need them … is something upon which we shall keep our own counsel for now. It works on the principle of avalanche noise… Read More

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Hours & Info

23 Tarvin Road, Boughton, Chester, CH3 5DJ
01244 911 876; 07889 064 352
jason@powelldoors.co.uk
Monday - Friday, 24hrs
Shutter design and installation

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Powell Doors
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