Patent ID: 9124168
Filing Date: 2015-09-01
Classification: H02M

Abstract:
1. A method used for electric isolation transmission, comprising: providing an isolation transmission circuit having a first side, a second side, a first capacitor, a second capacitor, a first resonance inductor and a second resonance inductor, wherein the first side has a first end and a second end, the second side has a third end and a fourth end, the isolation transmission circuit does not have an isolation transformer, and the first capacitor and the second capacitor are Y capacitors; providing a high frequency inverter bridge coupling to the first side of the isolation transmission circuit in series, wherein a resonant frequency of the isolation transmission circuit is lower than an inverter frequency of the high frequency inverter bridge; coupling the first resonance inductor to a first end of the first side; coupling the first capacitor between the first resonance inductor and the third end of the second side; coupling the second resonance inductor to the second end of the first side; coupling the second capacitor between the second resonance inductor and the fourth end of the second side; using the first resonance inductor, the first capacitor, the second resonance inductor and the second to provide electric isolation between the first side and the second side of the isolation transmission circuit; and using the first resonance inductor, the first capacitor, the second resonance inductor and the second to suppress a leakage current generated between the first side and the second side, and to transmit power.