A half-bridge inverter 20 is used for a high frequency alternating current power supply to be connected to a primary side of a contactless power transformer 30, and a voltage-doubler rectifier 40 is used to convert a secondary-side alternating current output of the contactless power transformer 30 into a direct current. The alternating current output voltage of a half-bridge inverter drops a half of a full-bridge inverter. However, since the voltage-doubler rectifier boosts the output voltage to two times as high as the output of a full-wave rectifier, a voltage ratio between the input voltage to the inverter and the secondary-side direct current voltage becomes almost the same as a whole. The voltage of the contactless power transformer drops to approximately a half of the conventional voltage so that the contactless power transfer system is advantageous in terms of insulation and reducing ferrite loss.
CONTACTLESS POWER TRANSFER SYSTEM
SYSTEM FÜR KONTAKTFREIE ENERGIEÜBERTRAGUNG
SYSTÈME DE TRANSFERT D'ÉNERGIE SANS CONTACT
2015-12-02
Patent
Electronic Resource
English
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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / 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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