Amplitude shift keying modulation for multi-device wireless charger

• Main Authors: WINTERS JUSTIN, GOODCHILD, ERIC, H
• Format: Patent
• Language: Chinese; English
• Published: 18.10.2022
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSMISSION

Systems, methods, and apparatus for wireless charging are disclosed. A method includes providing a first charging current to a first transmitting coil in a wireless charging device, where the first transmitting coil is coupled to a receiving coil in a first power receiving device; supplying a second charging current to a second transmitting coil in the wireless charging device, where the second transmitting coil is coupled to a receiving coil in a second power receiving device, the first charging current and the second charging current being supplied at frequencies different from each other; receiving a first modulated signal from the first power receiving device, the first modulated signal including a carrier signal provided at a frequency corresponding to a frequency of the first charging current; and filtering the first modulated signal using a band-pass filter configured to block a second modulated signal transmitted by the second power receiving device. 公开了用于无线充电的系统、方法和装置。一种方法包括：向无线充电设备中的第一发送线圈提供第一充电电流，其