Variable impedance LED matrix control system for lamps in PV applications

Gago Calderón, Alfonso; Fernández Ramos, José; Pineda Moldes, Iván y Narvarte Fernández, Luis (2013). Variable impedance LED matrix control system for lamps in PV applications. En: "3rd Symposium Small PV Applications - Rural Electrification and Commercial Use", 17/06/2013 - 18/06/2013, Ulm, Germany. ISBN 9783943891171. pp. 117-122.

Descripción

Título: Variable impedance LED matrix control system for lamps in PV applications
Autor/es:
  • Gago Calderón, Alfonso
  • Fernández Ramos, José
  • Pineda Moldes, Iván
  • Narvarte Fernández, Luis
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 3rd Symposium Small PV Applications - Rural Electrification and Commercial Use
Fechas del Evento: 17/06/2013 - 18/06/2013
Lugar del Evento: Ulm, Germany
Título del Libro: 3rd Symposium Small PV-Applications : rural electrification and commercial use ; Ulm, Germany, June 17th/18th, 2013
Fecha: 2013
ISBN: 9783943891171
Materias:
Escuela: Instituto de Energía Solar (IES) (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The interest in LED lighting has been growing recently due to the high efficacy, lifelime and ruggedness that this technology offers. However the key element to guarantee those parameters with these new electronic devices is to keep under control the working temperature of the semiconductor crystal. This paper propases a LED lamp design that fulfils the requ irements of a PV lighting systems, whose main quality criteria is reliability. It uses directly as a power supply a non·stabilized constant voltage source, as batteries. An electronic control architecture is used to regulate the current applied to the LEO matri)( according to their temperature and the voltage output value of the batteries with two pulse modulation signals (PWM) signals. The first one connects and disconnects the LEOs to the power supply and the second one connects and disconnects several emitters to the electric circuit changing its overall impedance. A prototype of the LEO lamp has been implemented and tested at different temperaturas and battery voltages.

Más información

ID de Registro: 26480
Identificador DC: http://oa.upm.es/26480/
Identificador OAI: oai:oa.upm.es:26480
Depositado por: Memoria Investigacion
Depositado el: 08 Jun 2014 11:37
Ultima Modificación: 19 May 2017 12:33
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