Cost-Effective Single Switch Multi-Channel LED Driver

Single Stage Single Switch LED Driver with Improved Power Factor Correction and Soft Switching

Light Emitting Diodes (LEDs) with their current performances have been proved to be the most suitable solution for street lighting applications. Nowadays, a topic of interest in this context is the design for electronic driver in order to take the advantage of LEDs performances. However, requirements such as high power factor, long life time, accurate current control and high efficiency pose ch...

A New, Simple, “universal”, Low Cost LED Driver and Controller

In this paper a new LED driver and its controller are conceived realized and experimentally validated. It presents several advantages compared with existing counterparts: First it uses a single converter while most of the existing drivers are based on a two-converter architecture. In the proposed approach the average current through the LED is directly regulated. The proposed driver is built ar...

Economic Implications of Single Cost Driver Systems

We subject claims about the benefits of activity-based costing systems to the scrutiny of analytical models incorporating rational behavior by users of product costing systems. We find that a monopolist Is almost always strictly better off using multiple cost drivers as in an activity-based costing (ABC) system even when the system makes measurement errors in assigning overhead costs to activit...

Multi-Channel Force Sensing Resistor Switch

LED Driver Lifetime and Reliability

While LEDs themselves are extremely reliable and have a long lifetime, are electronic LED drivers capable of providing the required current/voltage input to the LEDs over their whole lifetime? This paper aims to address the above question in general and for the Xitanium family of LED drivers developed by Philips Lighting specifically. It will describe some of the strategies which Philips applie...