Photovoltaic OLED Driver for Low-Power Stand-Alone Light-to-Light Systems

Abstract

1 Abstract-Photovoltaic (PV) stand-alone systems need to achieve multiple energy conversion modes. I.e. the energy conversion from PV to a local energy storage as well as energy conversion from the energy storage to the load. This paper documents the practical design considerations for the development of a three-port-converter for this purpose optimized for the specifications for driving an Organic Light Emitting Diode (OLED) panel intended for lighting purposes. By using a three-port-converter, featuring shared components for each conversion mode, the converter reaches 97 % efficiency at 1.8 W during conversion from photovoltaic panel to the battery, and 97 % in the area 1.4 W to 2 W for power delivery to the OLED.

A High-Voltage Low-Power Switched-Capacitor DC-DC Converter Based on GaN and SiC Devices for LED Drivers

“…for internet of things (IoT) are examples driving a continuous demand of the reduction in volume of power converters. The converters driving LEDs are typically inductor-based converters, with operation ranges in voltage from a few volts [3] to tens of volts [4]. The power densities of these converters can potentially be increased by integrating power Metal Oxide Semiconductor Field Effect Transistor (MOSFET) on integrated circuits (IC) [5].…”