자기 유도성 공진 충전 회로는 유도성 1차 코일로부터 수신된 자기장을 교류(AC) 신호로 변환하는 유도성 2차 코일을 갖는 공진 네트워크, 및 부하에 인가하기 위한 직류(DC) 신호를 생성하기 위해 AC 신호를 정류하는 동기 정류기를 포함한다. 동기 정류기는 고장의 경우에 AC 전류원의 AC 파형을 션트하기 위한 다양한 구성을 포함한다. 예를 들어, 정류기 제어기는, 과전압, 과전류 고장 조건 또는 과온 고장 조건이 검출될 때 AC 전류원을 션트하기 위해 정류기의 한 쌍의 정상 열림 스위치를 오프 상태로 및 정류기의 한 쌍의 정상 닫힘 스위치를 온 상태로 유지할 수 있다. 공진 네트워크가 언밸런싱될 때 전기 차량의 섀시에서 발생된 용량성 전자기 간섭을 접지하는 구성이 제공된다.
A magnetic inductive resonance charging circuit includes a resonant network having an inductive secondary coil that converts a magnetic field received from an inductive primary coil into an alternating current (AC) signal and a synchronous rectifier that rectifies the AC signal to generate a direct current (DC) signal for application to a load. The synchronous rectifier includes a variety of configurations for shunting the AC waveform of an AC current source in the event of a fault. For example, a rectifier controller may hold a pair of normally open switches of the rectifier off and a pair of normally closed switches of the rectifier on to shunt the AC current source when an over-voltage, over-current fault condition or an over-temperature fault condition is detected. Configurations are provided for grounding the capacitive electromagnetic interference produced in the chassis of an electric vehicle when the resonant network is unbalanced.
SAFETY CIRCUITS FOR WIRELESS POWER TRANSFER
무선 전력 전송을 위한 페일세이프 안전 회로들
2023-10-23
Patent
Electronic Resource
Korean
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01F MAGNETS , Magnete / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise |
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