Mains-Operated Light Star / Mohamad Fadzil Kamarudin and Mohd Nurul Faizal Jusoh

Kamarudin, Mohamad Fadzil and Jusoh, Mohd Nurul Faizal (2003) Mains-Operated Light Star / Mohamad Fadzil Kamarudin and Mohd Nurul Faizal Jusoh. [Student Project] (Unpublished)

Abstract

‘Mains-Operated Light Star’ is a simple circuit and easily constructed even by novice. Actually, this project is very suitable for used when a celebration day likes Hari Raya Aidilfitri, Christmas, Gong Xi Fa Cai and other celebration. Nowadays, it is not just used for celebration day but to make our domicile looks very pleasant. This circuit we present a straightforward fixed pattern flasher for three sets of lights. However this is not your usual 1-2-3 chasing pattern, this unit has six steps, 1 - 1 +2 - 2 - 2+3 - 3 - 3+1, and then repeated. If the three sets of lights are mixed on the tree, it is not that easy to see the pattern! On the prototype the speed was fixed to about three steps per second, but it would be a simple matter to put a control pot on the front panel to set the mood if required.
The triac outputs are driven from zero-crossing opto isolators, which virtually eliminate radio interference. The triacs are hard driven, making the outputs suitable for driving inductive loads such as the modern low voltage transformer driven light star (Christmas light). The outputs can drive loads of up to 3 Amps (or possibly even more if the PCB tracks are reinforced), making the unit suitable for driving higher powered outdoor lights.

Metadata

Item Type: Student Project
Creators:
Creators
Email / ID Num.
Kamarudin, Mohamad Fadzil
99040157
Jusoh, Mohd Nurul Faizal
2000411130
Contributors:
Contribution
Name
Email / ID Num.
Advisor
Sulaiman, Siti Noraini
UNSPECIFIED
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electric lighting
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Semiconductors
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Filters (Electric)
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Transmission lines
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Applications of electronics
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus > Faculty of Electrical Engineering
Programme: Diploma in Electrical Engineering
Keywords: Circuit, Flasher, Isolators
Date: 2003
URI: https://ir.uitm.edu.my/id/eprint/53864
Edit Item
Edit Item

Download

[thumbnail of 53864.pdf] Text
53864.pdf

Download (101kB)

Fulltext

Fulltext is available at:
  • Bilik Koleksi Akses Terhad PTAR | Kampus Permatang Pauh, Pulau Pinang

ID Number

53864

Indexing

|

Statistic

Statistic details