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PROJECT DESCRIPTION

The project is designed to develop a device to increase the life of incandescent lamps. Incandescent lamps exhibit very low resistance in cold condition due to which it draws high current while switched ON, resulting in fast failure.

Random switching of lamps may switch the load at peak supply voltage. When such switching occurs while the lamp is having low resistance (cold condition) then the current further shoots up (at the time of peak supply voltage switch ON) leading to premature failure of the lamp.

The proposed project provides a solution by engaging a TRIAC in such a way that the switch ON time is precisely controlled by exactly firing it after detecting the zero cross point of the waveform of supply voltage. This would result in current waveform rising from zero at the time of switch to full value, thereby increasing the life of the lamp.

The project is having comparator which is used for ZVS output. The ZVS (zero voltage switching) is given as reference interrupt to the microcontroller of 8051 family. A push button is used for switching ON the lamp at zero voltage of the supply voltage so the lamp draws current gradually from zero to full value.

Further the project can be enhanced by using three TRIACS, one in each phase for three phase load switching.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Load Switch @ Zero Voltage.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Lamp Life Extender by ZVS (Zero Voltage Switching
Hardware Requirements
  • 8051 series Microcontroller
  • OPAMP
  • Opto-Isolators
  • TRIAC
  • Transformer
  • Diodes
  • Voltage Regulator
  • Push Button
  • LED
  • Resistors
  • Capacitors
  • Crystal
  • Load
Software Requirements
  • Keil compiler
  • Languages: Embedded C or Assembly
Q & A
Q:  Which microcontroller is used in this project?
A:  A 40 pin microcontroller from 8051 family is used in this project.
Q:  How is the lamp life extended?
A:  The lamp is switched on at zero crossing point of supply voltage, drawing least power, thus extending its life.
Q:  How is the zero crossing point detected?
A:  Zero crossing point is detected using Operational amplifiers as comparators.
Q:  Which thyristor is used?
A:  TRIAC BT136 is used as the thyristor.
READ WHAT OTHERS HAVE SAID
Average Rating
 4.7/5
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Showing 4 of 6 reviews Show All
Melbin Babu, Thrissur on 1st June, 2015, 05:54 PM

One of my friends suggested Edgefx, so directly searched Edgefx website on internet.I found the information related to my project requirement on your website, so I purchased. I like the material about the instruments.Kit was delivered on time with the right components.I directly purchased through online. I will also recommend to my friends.Please provide more information about the code.

Melbin Babu, Thrissur on 30th May, 2015, 05:22 PM

One of my friends suggested Edgefx, so directly searched Edgefx website on internet.I found the information related to my project requirement on your website, so I purchased. I like the material about the instruments.Kit was delivered on time with the right components.I directly purchased through online. I will also recommend to my friends.Please provide more information about the code.

Manish pardhi, Nagpur on 30th May, 2015, 11:21 AM

I typed “Engineering embedded projects” on google, I found your website on internet.I like the quality of components and project details in CD.I got the kit on time.I directly purchased the project through online.No suggestions

Amit Parikh, Ahmedabad on 25th May, 2015, 06:17 PM

The Kit got delivered to me in time with all the right components as mentioned in BOM list.I myself doing the soldering part by analyzing circuit and components layout diagrams provided with the kit so my queries are getting resolved while building the project more than my expectation level and I am quite satisfied with this and technical wise all the report is good which can be easily understandable by students.It is a brilliant experience for me in building the project and I am about to submit my project in college by this month ending.I will recommend Edgefx to others because of good service to the students by Edgefx.

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