Bus capacitance reduction in driver for LEDs power
This paper presents the performance evaluation of control techniques for the reduction of capacitors in drivers for actuation LED.Through the active control of the driver output current, the ripple from the PFC stage of the current can be controlled, keeping itat levels appropriate to the technical...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | Brasil |
| Institución: | Universidade Federal de Santa Maria (UFSM) |
| Repositorio: | Revista Ciência e Natura (Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/40623 |
| Acceso en línea: | https://periodicos.ufsm.br/cienciaenatura/article/view/e49-40623 |
| Access Level: | acceso abierto |
| Palabra clave: | Static Converter Buck-Boos LED driver Bus Capacitance Reduction Active Ripple Control Conversor Estático Buck-Boost LED Driver Redução Capacitância de Barramento Controle Ativo do Ripple |
| Sumario: | This paper presents the performance evaluation of control techniques for the reduction of capacitors in drivers for actuation LED.Through the active control of the driver output current, the ripple from the PFC stage of the current can be controlled, keeping itat levels appropriate to the technical standards, being IEC 61000-3-2 Class C and IEEE 1789. This control allows the outputvoltage ripple to vary at higher amplitude levels, allowing the use of a lower capacitance bus capacitor, therefore longer life usefuland reliability.The analyzed electronic system consists of the Buck-Boost converter was performed at the power control stagefor different bus voltages and output power. Different controller structures were analizes, in order to obtain an analysis of theinfluence of these controllers in the reduction of bus capacitance. Thus obtaining a greater ripple in the bus voltage, maintainingagreement with IEEE 1789 standard regarding current ripple limits on LEDs. |
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