POWER CONVERSION DEVICE AND CONTACTLESS POWER TRANSMISSION CIRCUIT

• Main Authors: ISHIGAKI MASAKI, SHIGEUCHI KOJI, TAUCHI YUTAKA, SUGIYAMA YOSHINOBU, OKAMURA SAKAKI
• Format: Patent
• Language: English; Japanese
• Published: 19.10.2022
• 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

To simplify and miniaturize a power conversion device.SOLUTION: A first switching circuit 10 and a second switching circuit 20 comprise switching arms A1 and A2, respectively, including an upper switching element SH and a lower switching element SL connected in common at one end. The first switching circuit 10 comprises a primary coil 18 whose one end is connected with a connection point between the upper switching element SH and the lower switching element SL of the switching arm A1. The second switching circuit 20 comprises a secondary coil 22 whose one end is connected with a connection point between the upper switching element SH and the lower switching element SL of the switching arm A2. The other end of the primary coil 18 is connected with a first DC power supply 12, and the other end of the secondary coil 22 is connected with a second DC power supply 26.SELECTED DRAWING: Figure 1 【課題】本発明の目的は、電力変換装置を単純化または小型化することである。【解決手段】第１スイッチング回路１０および第２スイッチング回路２０は、一端が共通に接続された上スイッチング素子ＳＨおよび下スイッチング素子ＳＬを含むスイッチングアームＡ１およびＡ２をそれぞれ備えている。第１スイッチング回路１０は、スイッチングアームＡ１の上スイッチング素子ＳＨおよび下スイッチング素子ＳＬの接続点に一端が接続された１次巻線１８を備えている。第２スイッチング回路２０は、スイッチングアームＡ２の上スイッチング素子ＳＨおよび下スイッチング素子ＳＬの接続点に一端が接続された２次巻線２２を備えている。１次巻線１８の他端には第１直流電源１２が接続され、２次巻線２２の他端には第２直流電源２６が接続されている。【選択図】図１