US Patent Application 17785913. POWER CONVERSION DEVICE simplified abstract
Contents
POWER CONVERSION DEVICE
Organization Name
Mitsubishi Electric Corporation
Inventor(s)
Hisatoshi Fukumoto of Tokyo (JP)
POWER CONVERSION DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 17785913 titled 'POWER CONVERSION DEVICE
Simplified Explanation
The patent application describes a system for connecting multiple DC-DC converters in parallel.
- The system includes two groups of converters, each performing PWM switching with a different carrier frequency.
- Each group is assigned one or more converters.
- The system offers multiple drive modes, allowing for different combinations of driven converters and converter groups.
- The drive modes are determined by comparing a preset threshold value with the total output of all converters.
- The system ensures that the ratio between total outputs in the first and second converter groups falls within a predetermined range.
Original Abstract Submitted
For connected-in-parallel N DC-DC converters ( to N, where N is 3 or more), a first converter group on which PWM switching is performed with a first carrier, and a second converter group on which PWM switching is performed with a second carrier having a phase different from that of the first carrier, are provided. One or more of the DC-DC converters ( to N) are assigned to each converter group. A plurality of drive modes in which the number of the DC-DC converters that are driven and the converter groups are set, are provided. The drive modes are switched through comparison between a preset threshold value and a total output of the N DC-DC converters ( to N), and a ratio between total outputs in the first and second converter groups is set to fall within a predetermined range.
