Electricity transmission device for wireless power communication system

[0009] In this embodiment, refer to figure 1 As shown, a wireless power communication system power transmission device includes an AC/DC converter, a central control unit, an object sensor, a switch control unit, a series resonant converter, a driver, a rectifier unit, a receiving control unit, and a battery unit , The AC/DC converter is connected to a central control unit, the central control unit is connected to the object sensor, the switch control unit is connected to the central control unit, the central control unit is connected to the driver, and the driver is connected to The series resonant converter is connected, the series resonant converter is connected to the object sensor, and the object sensor, the switch control unit and the series resonant converter are respectively connected to the rectifying unit.

[0010] The rectifying unit is connected to the receiving control unit, and the receiving control unit is connected to the battery unit.

[0011] An electromagnetic coil is connected between the series resonant converter and the object sensor, the electromagnetic coil is connected with the switch control unit, and the electromagnetic coil is connected with the rectifier unit.

[0012] The object sensor senses the load change of the primary coil to determine whether the load change of the tubing is caused by the wireless power receiving device, and performs the function of filtering the state of charge signal transmitted by the wireless power receiving device. The central control unit receives and confirms the judgment result of the object sensor, analyzes the signal received by the primary side coil, and accordingly transmits the power signal for sending the wireless power signal through the primary side coil to the driver. The driver controls the operation of the series resonant converter based on the control of the central control unit. The series resonant converter generates a transmission power source for generating a power signal to be transmitted according to the control of the driver, and supplies it to the primary coil. The AC/DC converter converts 220V AC power into a predetermined DC power source. The rectifier unit rectifies the wireless power from the coil into a DC voltage, and maintains the charging state with the charging voltage before starting charging. The receiving control unit controls the current of the power source charged by the rectifier unit, so that an appropriate current flows to the battery unit.

[0013] The beneficial effects of the power transmission device for the wireless power communication system of the present invention: the series resonant converter and the object sensor of the power transmission device for the wireless power communication system induce electromagnetics, and the two control units respectively control the charging device For control, the contact ports do not touch each other, which improves the shielding degree to the magnetic field and improves the receiving sensitivity.

[0014] The above-mentioned embodiment is only an example of the present invention, and is not used to limit the implementation of the present invention and the scope of rights. All technical solutions that are the same as or equivalent to the content of the claims of the present invention should be included in the protection scope of the present invention.