Foreign objection detection sensing circuit for wireless power transmission systems
A wireless power circuit operable in transceiver mode and in Q-factor measurement mode includes a bridge rectifier having first and second inputs coupled to first and second terminals of a coil, and an output coupled to a rectified node. An excitation circuit coupled to the first terminal, in Q-fact...
Gespeichert in:
| Hauptverfasser: | , , , , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | Hegde, Supriya Raveendra Sann, Thet Mon Karuppusamy, Baranidharan Tan, Kien Beng He, Huiqiao Lee, Teerasak |
| description | A wireless power circuit operable in transceiver mode and in Q-factor measurement mode includes a bridge rectifier having first and second inputs coupled to first and second terminals of a coil, and an output coupled to a rectified node. An excitation circuit coupled to the first terminal, in Q-factor measurement mode, drives the coil with a pulsed signal. A protection circuit couples the first terminal to a first node when in Q-factor measurement mode and decouples the first terminal when in transceiver mode. A controller causes the bridge rectifier to short the first and second terminals to ground during Q-factor measurement mode. A sensing circuit amplifies voltage at the first node to produce an output voltage, and in response to the voltage at the first node rising to cross a rising threshold voltage, digitizes the output voltage. The digitized output voltage is used in calculating a Q-factor of the coil. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US11658518B2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US11658518B2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US11658518B23</originalsourceid><addsrcrecordid>eNqNyjEKwkAQRuE0FqLeYTyAxSqR1IrBPlqHdf0TRpKdZWYleHtBcgCr94pvWTS1KLiPJI8XQmaJ9ESezxCNY0-BNbw5UydKEysGmFGSCUpZfbSRzX7-YxmjrYtF5wfDZu6q2NaX2_m6Q5IWlnxARG7vjXPHsipdddof_jFf8Mg56A</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Foreign objection detection sensing circuit for wireless power transmission systems</title><source>esp@cenet</source><creator>Hegde, Supriya Raveendra ; Sann, Thet Mon ; Karuppusamy, Baranidharan ; Tan, Kien Beng ; He, Huiqiao ; Lee, Teerasak</creator><creatorcontrib>Hegde, Supriya Raveendra ; Sann, Thet Mon ; Karuppusamy, Baranidharan ; Tan, Kien Beng ; He, Huiqiao ; Lee, Teerasak</creatorcontrib><description>A wireless power circuit operable in transceiver mode and in Q-factor measurement mode includes a bridge rectifier having first and second inputs coupled to first and second terminals of a coil, and an output coupled to a rectified node. An excitation circuit coupled to the first terminal, in Q-factor measurement mode, drives the coil with a pulsed signal. A protection circuit couples the first terminal to a first node when in Q-factor measurement mode and decouples the first terminal when in transceiver mode. A controller causes the bridge rectifier to short the first and second terminals to ground during Q-factor measurement mode. A sensing circuit amplifies voltage at the first node to produce an output voltage, and in response to the voltage at the first node rising to cross a rising threshold voltage, digitizes the output voltage. The digitized output voltage is used in calculating a Q-factor of the coil.</description><language>eng</language><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>2023</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=20230523&DB=EPODOC&CC=US&NR=11658518B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25566,76549</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230523&DB=EPODOC&CC=US&NR=11658518B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Hegde, Supriya Raveendra</creatorcontrib><creatorcontrib>Sann, Thet Mon</creatorcontrib><creatorcontrib>Karuppusamy, Baranidharan</creatorcontrib><creatorcontrib>Tan, Kien Beng</creatorcontrib><creatorcontrib>He, Huiqiao</creatorcontrib><creatorcontrib>Lee, Teerasak</creatorcontrib><title>Foreign objection detection sensing circuit for wireless power transmission systems</title><description>A wireless power circuit operable in transceiver mode and in Q-factor measurement mode includes a bridge rectifier having first and second inputs coupled to first and second terminals of a coil, and an output coupled to a rectified node. An excitation circuit coupled to the first terminal, in Q-factor measurement mode, drives the coil with a pulsed signal. A protection circuit couples the first terminal to a first node when in Q-factor measurement mode and decouples the first terminal when in transceiver mode. A controller causes the bridge rectifier to short the first and second terminals to ground during Q-factor measurement mode. A sensing circuit amplifies voltage at the first node to produce an output voltage, and in response to the voltage at the first node rising to cross a rising threshold voltage, digitizes the output voltage. The digitized output voltage is used in calculating a Q-factor of the coil.</description><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyjEKwkAQRuE0FqLeYTyAxSqR1IrBPlqHdf0TRpKdZWYleHtBcgCr94pvWTS1KLiPJI8XQmaJ9ESezxCNY0-BNbw5UydKEysGmFGSCUpZfbSRzX7-YxmjrYtF5wfDZu6q2NaX2_m6Q5IWlnxARG7vjXPHsipdddof_jFf8Mg56A</recordid><startdate>20230523</startdate><enddate>20230523</enddate><creator>Hegde, Supriya Raveendra</creator><creator>Sann, Thet Mon</creator><creator>Karuppusamy, Baranidharan</creator><creator>Tan, Kien Beng</creator><creator>He, Huiqiao</creator><creator>Lee, Teerasak</creator><scope>EVB</scope></search><sort><creationdate>20230523</creationdate><title>Foreign objection detection sensing circuit for wireless power transmission systems</title><author>Hegde, Supriya Raveendra ; Sann, Thet Mon ; Karuppusamy, Baranidharan ; Tan, Kien Beng ; He, Huiqiao ; Lee, Teerasak</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US11658518B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2023</creationdate><topic>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>Hegde, Supriya Raveendra</creatorcontrib><creatorcontrib>Sann, Thet Mon</creatorcontrib><creatorcontrib>Karuppusamy, Baranidharan</creatorcontrib><creatorcontrib>Tan, Kien Beng</creatorcontrib><creatorcontrib>He, Huiqiao</creatorcontrib><creatorcontrib>Lee, Teerasak</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hegde, Supriya Raveendra</au><au>Sann, Thet Mon</au><au>Karuppusamy, Baranidharan</au><au>Tan, Kien Beng</au><au>He, Huiqiao</au><au>Lee, Teerasak</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Foreign objection detection sensing circuit for wireless power transmission systems</title><date>2023-05-23</date><risdate>2023</risdate><abstract>A wireless power circuit operable in transceiver mode and in Q-factor measurement mode includes a bridge rectifier having first and second inputs coupled to first and second terminals of a coil, and an output coupled to a rectified node. An excitation circuit coupled to the first terminal, in Q-factor measurement mode, drives the coil with a pulsed signal. A protection circuit couples the first terminal to a first node when in Q-factor measurement mode and decouples the first terminal when in transceiver mode. A controller causes the bridge rectifier to short the first and second terminals to ground during Q-factor measurement mode. A sensing circuit amplifies voltage at the first node to produce an output voltage, and in response to the voltage at the first node rising to cross a rising threshold voltage, digitizes the output voltage. The digitized output voltage is used in calculating a Q-factor of the coil.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_epo_espacenet_US11658518B2 |
| source | esp@cenet |
| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Foreign objection detection sensing circuit for wireless power transmission systems |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-17T23%3A54%3A33IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=Hegde,%20Supriya%20Raveendra&rft.date=2023-05-23&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS11658518B2%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |