US 2016/0241084 A1 · Control Method and Device for Wireless Power Transfer System of Motor Device

Abstract

A controlling method and device for a wireless power transfer system, wherein the wireless power transfer system includes a transmitting component and a receiving component, and further includes a contactless transformer & compensation (CT&C) circuit, and the controlling method includes: obtaining positional relationship information of the transmitting component and the receiving component; adjusting the number of coil turns of the transmitting component based on the positional relationship information, and making conditions of a CT&C voltage gain characteristic and an input impedance characteristic after a charging inverter bridge of the wireless power transfer system meet a charging condition. The abovementioned technical solution can provide a protection for a stable operation of the wireless power transfer system with a non-mechanical adjusting device, and the wireless charging can be achieved without using a mechanical adjusting device to align and range

Claims15

Dependent claims

A controlling method for a wireless power transfer system, wherein, the wireless power transfer system comprises a transmitting component and a receiving component, and further comprises a contactless transformer & compensation circuit (CT&C), and the controlling method comprises:

obtaining positional relationship information of the transmitting component and the receiving component;
adjusting a number of coil turns of the transmitting component based on the positional relationship information, and making conditions of a CT&C voltage gain characteristic and an input impedance characteristic after a charging inverter bridge of the wireless power transfer system meet a charging condition.

A controlling device for a wireless power transfer system, wherein,

the wireless power transfer system comprises a transmitting component and a receiving component, and further comprises a contactless transformer & compensation circuit (CT&C), and the controlling device comprises:
an auxiliary positioning device and a turn number adjusting device, wherein:
the auxiliary positioning device is configured to:
determine a position of the receiving component, obtain positional relationship information of the transmitting component and the receiving component, and sending the positional relationship information to the turn number adjusting device;
the turn number adjusting device is configured to:
receive the positional relationship information, adjust a number of coil turns of the transmitting component based on the positional relationship information, and make conditions of a CT&C voltage gain characteristic and an input impedance characteristic after a charging inverter bridge of the wireless power transfer system meet a charging condition.

3 more elements

Dependencies are inferred from the claim text.

Control Method and Device for Wireless Power Transfer System of Motor Device

Life of this patent

Control Method and Device for Wireless Power Transfer System of Motor Device

Life of this patent

Abstract

Claims15