Samsung electronics co., ltd. (20240322602). WIRELESS POWER TRANSMISSION DEVICE, AND ELECTRONIC DEVICE COMPRISING SAME simplified abstract
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WIRELESS POWER TRANSMISSION DEVICE, AND ELECTRONIC DEVICE COMPRISING SAME
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WIRELESS POWER TRANSMISSION DEVICE, AND ELECTRONIC DEVICE COMPRISING SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240322602 titled 'WIRELESS POWER TRANSMISSION DEVICE, AND ELECTRONIC DEVICE COMPRISING SAME
The abstract describes an electronic device with a wireless power transmission system that includes a power amplifier circuit, a power transmission coil, and a matching circuit.
- The electronic device has a processor, a battery, and a wireless power transmission device.
- The power amplifier circuit converts DC power from the battery or adapter into AC and enables zero-voltage switching.
- The power transmission circuit includes a coil to transmit power received from the power amplifier circuit.
- The matching circuit matches the impedance between the power amplifier circuit and the power transmission circuit.
- The negative voltage detection circuit detects negative voltages in the power amplifier circuit's filter circuit.
- The voltage dividing circuit converts negative voltages into positive voltages for detection by the voltage sensor.
- The low-pass filter ensures accurate voltage detection in the negative voltage detection circuit.
Potential Applications: - Wireless charging systems for electronic devices - Power transmission in IoT devices - Electric vehicle charging systems
Problems Solved: - Efficient conversion of DC to AC power - Accurate detection of negative voltages - Seamless power transmission wirelessly
Benefits: - Improved energy efficiency - Convenient wireless charging - Enhanced safety features
Commercial Applications: Title: "Wireless Power Transmission System for Electronic Devices" This technology can be used in consumer electronics, automotive industry, and IoT devices for efficient wireless charging solutions.
Questions about the technology: 1. How does the power amplifier circuit ensure zero-voltage switching? 2. What are the advantages of using a wireless power transmission system in electronic devices?
Original Abstract Submitted
an electronic device is provided. the electronic device includes a processor, a battery, and a wireless power transmission device, wherein the wireless power transmission device includes a power amplifier circuit including a switch circuit, a filter circuit, and a series resonant circuit, the power amplifier circuit being configured to convert direct current (dc) power received from the battery or a dc adapter into alternative current (ac) and to implement zero-voltage switching (zvs), a power transmission circuit including a power transmission coil configured to transmit power received from the power amplifier circuit to outside, a matching circuit located between and connected to the power amplifier circuit and the power transmission circuit, the matching circuit being configured to match an impedance of the power amplifier circuit and the power transmission circuit, and a negative voltage detection circuit connected to the filter circuit of the power amplifier circuit and configured to detect a negative voltage generated in the filter circuit, and wherein the negative voltage detection circuit includes a voltage dividing circuit including a positive voltage power supply and a plurality of resistors, the voltage dividing circuit being configured to convert the negative voltage generated in the filter circuit of the power amplifier circuit into a positive voltage in a predetermined range, a voltage sensor configured to detect the positive voltage, and a low-pass filter located between and connected to the voltage dividing circuit and the voltage sensor.
