Single-phase alternating-direct current converter with power factor correction

• Main Authors: BARRADO BAUTISTA ANDRES, PLEITE GUER5RA JORGE, LAZARO BLANCO ANTONIO, OLIAS RUIZ EMILIO
• Format: Patent
• Language: English; Spanish
• Published: 01.10.2003
• Edition: 7
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

Single-phase alternating-direct current converter with power factor correction.The converter, in which the power factor correction is performed in an active manner and in a single phase, can be represented by two internal converters. The first of these is a Flyback type converter that has two output diodes and distributes part of the input energy to the load via DS1, and the rest of the energy is stored in C1 using the DAUX auxiliary diode. The second converter supplies, in a complementary manner, the output via the DS2 diode from C1, allowing, during the entire network cycle, the load to be supplied with constant voltage. The power factor correction device allows, as an important characteristic, the C1 voltage to be indifferently greater than or less than the output voltage, VO. El convertidor, en el que la corrección del factor de potencia se realiza de forma activa en una sola etapa, puede representarse mediante dos convertidores internos. El primero de ellos tipo Flyback con dos diodos de salida, distribuye parte de la energía de entrada hacia la carga a través de DS1, y el resto de la energía se almacena en C1 a través del diodo auxiliar DAUX. El segundo de los convertidores alimenta complementariamente la salida a través del diodo DS2 desde C1, permitiendo que durante todo el ciclo de red la carga permanezca alimentada con potencia constante. El corrector del factor de potencia presenta como característica importante el que la tensión de C1 debe ser menor que la tensión de salida, VO. Single-phase alternating-direct current converter with power factor correction.The converter, in which the power factor correction is performed in an active manner and in a single phase, can be represented by two internal converters. The first of these is a Flyback type converter that has two output diodes and distributes part of the input energy to the load via DS1, and the rest of the energy is stored in C1 using the DAUX auxiliary diode. The second converter supplies, in a complementary manner, the output via the DS2 diode from C1, allowing, during the entire network cycle, the load to be supplied with constant voltage. The power factor correction device allows, as an important characteristic, the C1 voltage to be indifferently greater than or less than the output voltage, VO.