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Título: Implementing low power consumption in standby mode in the case of power supplies with power factor correction
Autores: Martín, Kevin
F. Miaja, Pablo
G. Lamar, Diego
Sebastián, Javier
Álvarez, Santiago
Palabras Claves: Ingeniería
Fecha Edición: 26-Mar-2017
Resumen: This work analyzes different options to implement low power consumption in Switching Mode Power Supplies (SMPSs) with Power Factor Correction (PFC) when they are in standby mode. The standard SMPSs for power levels higher than 100 W are made up of two stages: a classical PFC stage based on a Boost Converter operating in the Continuous Conduction Mode and a second stage based on any type of isolated DC-DC converter. The value of the resistive sensors needed by the PFC control stage determines a standby consumption higher than 0.5 W if the power supply has to be designed to operate in the Universal Range of line voltages. This fact makes it very difficult to comply with European Ecodesign Regulations. To overcome this problem, several solutions are proposed and analyzed in this paper, the most promising being implemented in a real SMPS prototype.
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