Patent ID: 9413184
Filing Date: 2016-08-09
CPC Classification: B60L,H02J,H02M,Y02T

Claim Text:
1. A pre-charging and voltage supply system for a DC-AC inverter, comprising: a first battery having a first anode and a first cathode, the first battery adapted to generate a first voltage level between the first anode and the first cathode; a contactor electrically coupled in series with and between the first anode and an electrical node; a first voltage sensor electrically coupled between and to the electrical node and the first cathode, the first voltage sensor adapted to generate a first voltage signal indicative of a voltage level between the electrical node and the first cathode; a DC-DC voltage converter electrically coupled between and to the electrical node and the first cathode; a second battery having a second anode and a second cathode, the second anode electrically coupled to the DC-DC voltage converter, the second battery adapted to generate a second voltage level between the second anode and the second cathode, the second voltage level being less than the first voltage level; a microprocessor operably coupled to the first voltage sensor and the DC-DC voltage converter, the microprocessor programmed to generate a first control signal to induce the DC-DC voltage converter to increase a voltage level between the electrical node and the first cathode, utilizing a voltage from the second battery; and the microprocessor further programmed to generate a second control signal to induce the contactor to transition a contact from an open operational position to a closed operational position such that the first voltage level from the first battery is applied to the DC-AC inverter, if the voltage level between the electrical node and the first cathode is greater than a threshold voltage level.