INTERLEAVING ELECTRICAL DIRECT CURRENT REDUCING CIRCUIT (Machine-translation by Google Translate, not legally binding)

The invention concerns an electrical direct current (DC-DC) reducing circuit essentially comprising three identical parallel connected (buck) reducer-converters (1) whose MOSFET transistors operate at a fixed switching frequency and are uniformly phase displaced ("interleaving"). The circu...

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Bibliographische Detailangaben
Hauptverfasser:	MARTINEZ SALAMERO LUIS, MAIXE ALTES JAVIER, FONTANILLES PINAS JOAN, BORREGO BEL CARLES, GIRO ROCA JORDI, VALDERRAMA BLAVI HUGO
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	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
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Beschreibung
Zusammenfassung:	The invention concerns an electrical direct current (DC-DC) reducing circuit essentially comprising three identical parallel connected (buck) reducer-converters (1) whose MOSFET transistors operate at a fixed switching frequency and are uniformly phase displaced ("interleaving"). The circuit is input protected against short-circuits by means of diodes that are series connected to the inductance of every converter. The circuit is also input protected against voltage surges and output protected against overloads. Transistor switching control is carried out by pulse width modulation (PWM), which is controlled by a proportional-integral-differential (PID) controller receiving output voltage and output current as feedback signals. The converter is especially designed to be installed in an electrical distribution box of a vehicle having two electrical networks with different voltage. The box includes a microprocessor that simultaneously controls the converter and other devices in the vehicle. (Machine-translation by Google Translate, not legally binding) Convertidor en "interleaving" de energía eléctrica continua- continua, aplicable a vehículos con redes de distribución a dos niveles de tensión de por Ej. 14V CC y 42 V CC, aptas para dar respuesta al consumo creciente de energía eléctrica derivado del aumento de los equipamientos eléctricos y electrónicos en los vehículos. El convertidor propuesto comprende la conexión de tres o más convertidores Buck, idénticos, en paralelo, cuyos interruptores operan en sincronismo a una misma frecuencia de conmutación fija pero desplazados en fase uniformemente, lo cual ocasiona que en las corrientes de entrada y salida del circuito se produzca una importante cancelación de armónicos a la frecuencia de conmutación, reduciéndose la amplitud de los rizados en dichas corrientes y en la tensión de salida. Permite utilizar condensadores de salida, para el rizado, de capacidad reducida y además las EMI generadas por el sistema son bajas.