A power transmitter that wirelessly transmits power to a power receiver includes a power converter that converts power fed from a power source into first direct current (DC) power, an inverter circuit that converts the first DC power into first alternating current (AC) power, a power transmission coil that generates a magnetic field based on the first AC power, and is magnetically coupled with a power reception coil included in the power receiver, a sensor that detects a current value and a voltage value of the first DC power, and a controller that controls the power converter, wherein the controller controls the power converter to raise a voltage of the first DC power up to a first voltage value lower than a predetermined power feeding time voltage value predetermined, and determines whether power is not allowed to be fed to the power receiver based on the current value of the first DC power when the voltage of the first DC power is the first voltage value.
POWER TRANSMISSION DEVICE, POWER TRANSMISSION METHOD, AND NON-CONTACT POWER SUPPLY SYSTEM
LEISTUNGSÜBERTRAGUNGSVORRICHTUNG, LEISTUNGSÜBERTRAGUNGSVERFAHREN UND KONTAKTLOSES LEISTUNGSVERSORGUNGSSYSTEM
DISPOSITIF DE TRANSMISSION DE PUISSANCE, PROCÉDÉ DE TRANSMISSION DE PUISSANCE, ET SYSTÈME D'ALIMENTATION ÉLECTRIQUE SANS CONTACT
2020-06-24
Patent
Elektronische Ressource
Englisch
IPC: | 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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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