Power transmission device, power transmission method, and wireless power transfer system
A power transmitter includes a power converter that converts power fed from a power source into first DC power, an inverter circuit that converts the first DC power into first AC power, a power transmission coil that generates a magnetic field based on the first AC power, and is magnetically coupled...
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| creator | Maekawa, Yuji Takatsu, Yuji Fujiwara, Eiichiro Hashizume, Sho |
| description | A power transmitter includes a power converter that converts power fed from a power source into first DC power, an inverter circuit that converts the first DC power into first 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 and a voltage 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 lower than a predetermined power feeding time voltage predetermined, and determines whether power is not allowed to be fed to the power receiver based on the current of the first DC power when the voltage of the first DC power is the first voltage. |
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CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ; ELECTRICITY ; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL ; GENERATION ; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES ; PERFORMING OPERATIONS ; SYSTEMS FOR STORING ELECTRIC ENERGY ; TRANSPORTING ; VEHICLES IN GENERAL</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190702&DB=EPODOC&CC=US&NR=10340743B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190702&DB=EPODOC&CC=US&NR=10340743B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Maekawa, Yuji</creatorcontrib><creatorcontrib>Takatsu, Yuji</creatorcontrib><creatorcontrib>Fujiwara, Eiichiro</creatorcontrib><creatorcontrib>Hashizume, Sho</creatorcontrib><title>Power transmission device, power transmission method, and wireless power transfer system</title><description>A power transmitter includes a power converter that converts power fed from a power source into first DC power, an inverter circuit that converts the first DC power into first 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 and a voltage 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 lower than a predetermined power feeding time voltage predetermined, and determines whether power is not allowed to be fed to the power receiver based on the current of the first DC power when the voltage of the first DC power is the first voltage.</description><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES</subject><subject>ELECTRICITY</subject><subject>ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL</subject><subject>GENERATION</subject><subject>MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES</subject><subject>PERFORMING OPERATIONS</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><subject>TRANSPORTING</subject><subject>VEHICLES IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIgIyC9PLVIoKUrMK87NLC7OzM9TSEkty0xO1VEowJTKTS3JyE_RUUjMS1EozyxKzUktLkZWlwZkFFcWl6Tm8jCwpiXmFKfyQmluBkU31xBnD93Ugvz41OKCxOTUvNSS-NBgQwNjEwNzE2MnI2Ni1AAAGUE7Tg</recordid><startdate>20190702</startdate><enddate>20190702</enddate><creator>Maekawa, Yuji</creator><creator>Takatsu, Yuji</creator><creator>Fujiwara, Eiichiro</creator><creator>Hashizume, Sho</creator><scope>EVB</scope></search><sort><creationdate>20190702</creationdate><title>Power transmission device, power transmission method, and wireless power transfer system</title><author>Maekawa, Yuji ; 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| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL |
| title | Power transmission device, power transmission method, and wireless power transfer system |
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