The rapid improvement in LED technology with
relatively low power consumption and long lifetime, provides
greater potential for general lighting applications ranging from
traffic signal, signboard, message displays, instrumentation
signals, cars lamp and others. The exponential growth of LED
lighting resulted in a vast selection of integrated circuit devices to
provide controlled white LEDs. No longer acceptable to an
energy-conscious world, switched-mode LED drivers have long
since replaced power-hungry linear current sources as the
standard. In many instances, real-time changes in LED output
intensity are required and commonly referred to as dimming
control. The driver can automatically switch to Pulse Width
Modulation (PWM) according to dimming input signals. The
study presents the potential of LED for indoor applications and
demonstrates a white LED lamp module to replace the compact
fluorescent lamp (CFL) and to reduce the energy consumption.
Furthermore, a prototype of LED lamp module was fabricated to
demonstrate the feasibility of such a lighting device, where the
LED lamp module is compared to (CFL). Several techniques are
used to provide dimming control to switched-mode WLED
drivers. Experimental results are presented here to verify the
performance of the driver connected to white LED lamp module.
From the outcome of this study, the white LED driver circuit
lamp module is much more efficient and has a great potential for
indoor application