{
  "$type": "site.standard.document",
  "description": "The present disclosure relates to a field of wireless power transfer technology. The present disclosure relates to a wireless power transfer system for zero current switching (ZCS) operation under charge-blocking oscillation, comprising a power supply, a transmitter terminal, and a receiver…",
  "path": "/patents/1376971",
  "publishedAt": "2025-10-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/12",
    "NINGBO DOUCHPOWER TECHNOLOGY CO., LTD."
  ],
  "textContent": "The present disclosure relates to a field of wireless power transfer technology. The present disclosure relates to a wireless power transfer system for zero current switching (ZCS) operation under charge-blocking oscillation, comprising a power supply, a transmitter terminal, and a receiver terminal, the transmitter terminal having a resonance capacitor and a transmitter coil, the receiver terminal having a receiver coil. The transmitter terminal further comprises: an equivalent resistor, the equivalent resistor being connected in series with the transmitter coil and then in parallel with the resonance capacitor to form a charge-blocking oscillation circuit; a control switch, the control switch being connected with both terminals of the power supply after being connected in series with the charge-blocking oscillation circuit A self-oscillating is achieved by utilizing charge-blocking. By blocking the resonant cavity after charging, an energy is closed inside the closed-loop resonance circuit, and the energy will oscillate. Compared with a conventional self-oscillating wireless power transfer (WPT) based on a negative resistor, some improvements in the present disclosure have a fewer count of switching devices and do not require any additional circuit design, thus having a better cost and robustness.",
  "title": "WIRELESS POWER TRANSFER SYSTEM FOR ZERO CURRENT SWITICHING OPERATION UNDER CHARGE-BLOCK OSCILLATION"
}