01-05-2010, 07:17 PM
Z-LED LIGHTS Presentation.pptx (Size: 1.77 MB / Downloads: 59)
Welcome Everybody !!
Introduction toZ-LED LIGHTS
Studies different types of LEDs
Designing of LED Products
Supplying LED Products to
malls, restaurants, hospitals,
housing projects, street lights
and hoardings etc.
LED ?
Light emitting diodes
Near future bulb replacements of CFLs &
Incandescent bulbs
Semiconductor device which conducts
electricity only in one direction
Tiny light bulbs
No filament, no gases, no Hg, no heavy
metal used
Symbol :
History of LED
Mid 1920s - Oleg Vladimirovich Losev
(Russian) “ first LED
 1962 “ Nick Holonyak Jr. “ first practical
LED (Red)
1976 - T.P. Pearsall “ first high efficiency,
high brightness LEDs for optical fiber
telecommunications
Initial LEDs very costly
First commercial LEDs - seven-segment
displays
Time by Time “ Radios, TVs, Watches,
Calculators, Mobiles etc.
Internal Structure
Working of LED
Comparison
LED Driver
3W-350mA LED Driver
Series Wiring
3W LED Driver Board
Products
Advantages
Cycling
ON/OFF Time
Dimming
Efficiency LED
Color
Size Normal Bulbs
Toxicity
Cool Light
Focus
Lifetime
Shock Resistance
Types
Chip - LED
Part No. : WH108
Size : 1.6*0.8*0.17mm
Features :
Worldâ„¢s thinnest Chip-LED
More than two
times brighter than the
existing Chip-LED.
Capable of producing the same brightness at a
lower power.
Z - Power LED
Size : 12 mm × 6.54 mm
Features :
Worldâ„¢s most bright LED
Efficacy of 90 lm/W
Ultra slim size
Super high luminous efficacy
Low electricity consumption
to replace the conventional bulbs
Z - Power LED P5 II
Part No. : F50360
Size : 6.0*5.0*1.0mm
Features :
Provides Full color
Using 3 RGB Power Chips
Suitable for decoration lighting
Z - Power LED Z1
Part No. : WZ10150
NZ10150
Size : 5.0*6.0*1.2mm
Features :
Ultra-thin package height: 1.2 mm
Unrestricted radiation : ceramic-based
body with a spacious radiation cavity
TOP Switch “ GX Family
An Integrated SMPS Chip
Pin Functional Description
DRAIN (D) Pin:
High voltage power MOSFET
drain output.
CONTROL © Pin:
Error amplifier and f/b current
i/p pin for duty cycle control.
LINE-SENSE (L) Pin:
Input pin for OV, UV, line feed
fwd with DCmax reduction,
remote ON/OFF and
synchronization.
EXTERNAL CURRENT LIMIT (X) Pin:
Input pin for external current limit adjustment, remote ON/OFF and synchronization.
FREQUENCY (F) Pin:
Input pin for selecting switching frequency.
SOURCE (S) Pin:
Output MOSFET source connection for high voltage power return.
General use of LED
Interesting Facts about LED
Life of an LED
=1,00,000hrs
No UV Light
10,000Rs LED Tubelight.
does it really matters?
Presented by:
Anirudh Vyas
SCHOOL OF ELECTRONICS & COMMUNICATION ENGINEERING
JODHPUR ENGINEERING COLLEGE AND RESEARCH CENTRE JODHPUR (RAJ.)
Rajasthan Technical University, Kota.