INTRINSIC BIASING METHOD FOR A DUAL DC/DC CONVERTER

• Main Authors: JUAN AGUILAR, Josué, CAMPS SORIANO, Jose Luis, SALVO LILLO, David, SALVO LILLO, Abelardo
• Format: Patent
• Language: English; French; German
• Published: 11.10.2023
• 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; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The present invention refers to a method of intrinsically biasing a dual DC/DC converter by means of an active pre-charging of the internal side of the converter prior to its connection with the batteries and a soft biasing of the batteries after the connection of the converter with the batteries. This has the advantage of having a dual DC/DC converter capable of charging isolated batteries in photovoltaic installations in a pole to ground configuration, eliminating the biasing transient that occurs when connecting the battery by means of passive resistive soft charging to the internal capacitor bus of the DC/DC converter, and also eliminating the biasing transient that occurs when starting the DC/DC converter for its normal operation.