A power transmitter is a device for wirelessly supplying power to a power receiver, including: a power converter configured to convert power supplied from a power source into direct current (DC) power; a DC/alternating current (AC) converter configured to convert the DC power into AC power; a capacitor configured to be provided at an input of the DC/AC converter; and a controller configured to perform a discharge control of the capacitor after the power converter stops, wherein the controller performs the discharge control by changing at least one of a driving frequency and a phase shift amount of the DC/AC converter so that power supplied to the DC/AC converter by the capacitor is equal to or lower than withstand power of the DC/AC converter.
Power transmitter
2020-09-15
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 |
DYNAMIC INDUCTIVE WIRELESS POWER TRANSMITTER SYSTEM WITH A POWER TRANSMITTER MODULE
Europäisches Patentamt | 2021
|Dynamic inductive wireless power transmitter system with a power transmitter module
Europäisches Patentamt | 2021
|