High voltage efficient lighting based on the loss-free resistor concept.
In this thesis, the notion of loss-free resistor (LFR) is used systematically to design power supplies for efficient lighting, namely light emitting diodes (LEDs), high intensity-discharge lamps (HID) and induction electrode-less fluorescent lamps (IEFLs) with the aim of reducing the electrical ener...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universitat Rovira i virgili (URV) |
| Repositorio: | Repositori Institucional de la Universitat Rovira i Virgili |
| OAI Identifier: | oai:urv.cat:TDX:1709 |
| Acceso en línea: | https://hdl.handle.net/20.500.11797/TDX1709 http://hdl.handle.net/10803/310217 |
| Access Level: | acceso abierto |
| Palabra clave: | 621.3 - Enginyeria elèctrica. Electrotècnia. Telecomunicacions |
| Sumario: | In this thesis, the notion of loss-free resistor (LFR) is used systematically to design power supplies for efficient lighting, namely light emitting diodes (LEDs), high intensity-discharge lamps (HID) and induction electrode-less fluorescent lamps (IEFLs) with the aim of reducing the electrical energy consumption in domestic or industrial applications. The different lamps previously mentioned are supplied at constant power independently of the lamp type and impedance, taking advantage of the LFR nature, i.e. an emulated resistance in the input port and a power source in the output port. The sliding -mode control technique is applied in the converters to impose the LFR behaviour in continuous conduction mode (CCM) in some cases, and in the boundary between CCM and discontinuous conduction mode (DCM) in other cases. This control technique has been implemented throughout the thesis by either analogue or digital controllers and allows regulating the light emitted by the lamps. |
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