A power transmitting device includes a power transmitting coil for providing output power to a power receiving coil, a thermal sensor that detects a temperature around the power transmitting coil, and a power transmission control circuit that controls the power transmitting device. The power transmission control circuit performs operations including: causing the power transmitting coil to provide first output power, causing the power transmitting coil to provide second output power to the power receiving coil for charging a battery connected to the power receiving coil, causing, if the detected temperature is equal to or higher than a threshold due to a presence of a metal foreign object, the power transmitting coil to reduce a level of the output power or stop the output power, and outputting a first signal indicating whether the metal foreign object is detected.
METHOD FOR CONTROLLING POWER TRANSMITTING DEVICE, METHOD FOR DETECTING FOREIGN OBJECT, AND POWER TRANSMITTING DEVICE IN WIRELESS POWER TRANSMISSION SYSTEM
2025-06-12
Patent
Electronic Resource
English
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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