LED POWER SUPPLY TRANSITION AND REMEDY

Power Supply Design in a Modular LED Dance Floor

The Washington University in St. Louis IEEE student branch are designing a next-generation LED dance floor that synthesizes color, music, and touch in a way that has not been done in any other device. The device is being designed with modularity and expandability as key features and therefore a solid, reliable power system was needed. This report focuses on the project’s power distribution and ...

Design Guideline on 150W Power Supply for LED

This application note describes a 150W rating design guideline for LED street lighting. The application design consists of CRM PFC and LLC SRC with high power factor and high power conversion efficiency using FL7930B and FAN7621S. To verify the validity of the application board and scheme, a demonstration board 150W (103V/1.46A) AC-DC converter was implemented and its results are presented in t...

Design Guideline on 150W Power Supply for LED Street Lighting Design Using FL7930B and FAN7621S

Study on Supplier-Led Supply Chain Finance

This study analyzes a class of supply chain financing system that includes the small and mediumsized manufacturer, the retailer and the raw material supplier which is the core enterprise. Both the manufacturer and the retailer face cash-constraint and cannot produce/order their optimal quantity. Our study is mainly to discuss two financing methods: direct financing and supply chain finance fina...

Innovation-Led Transitions in Energy Supply∗

I generalize a benchmark model of directed technical change in order to reconcile it with the historical experience of energy transitions. I show that the economy becomes increasingly locked-in to the dominant sector when machines and energy resources are substitutes, but a transition away from the dominant sector is possible when machines and energy resources are complements. Consistent with h...