CA2493048A1 - Dc power source determination circuitry for use with an adapter - Google Patents
Dc power source determination circuitry for use with an adapter Download PDFInfo
- Publication number
- CA2493048A1 CA2493048A1 CA002493048A CA2493048A CA2493048A1 CA 2493048 A1 CA2493048 A1 CA 2493048A1 CA 002493048 A CA002493048 A CA 002493048A CA 2493048 A CA2493048 A CA 2493048A CA 2493048 A1 CA2493048 A1 CA 2493048A1
- Authority
- CA
- Canada
- Prior art keywords
- power
- magnitude
- voltage
- data signal
- adapter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
Abstract
An adapter device includes a DC/DC adapter to receive DC power from a DC power source, and output a regulated DC voltage (V out). A source determination circuitry receives the DC power from the DC power source and compares a magnitude of a voltage of the DC power with a reference magnitude of a reference voltage (V ref). When the magnitude of the voltage of the DC power is greater than the reference magnitude, a data signal (V data) having a first value is output. When the magnitude of the voltage of the DC power is less than the reference magnitude, the V data signal having a second value is output. The V data signal is received by control circuitry of an electronic device. When the V data signal has the first value, the electronic device operates in a first mode where battery charging circuitry is disabled. When the V data signal has the second value, the battery charging circuitry is enabled.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/758933 | 2004-01-15 | ||
US10/758,933 US7453171B2 (en) | 2004-01-15 | 2004-01-15 | DC power source determination circuitry for use with an adapter |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2493048A1 true CA2493048A1 (en) | 2005-07-15 |
CA2493048C CA2493048C (en) | 2008-04-08 |
Family
ID=34620712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2493048 Expired - Fee Related CA2493048C (en) | 2004-01-15 | 2005-01-14 | Dc power source determination circuitry for use with an adapter |
Country Status (3)
Country | Link |
---|---|
US (1) | US7453171B2 (en) |
EP (1) | EP1555733A3 (en) |
CA (1) | CA2493048C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109980711A (en) * | 2017-12-28 | 2019-07-05 | 比亚迪汽车工业有限公司 | Electric car and electric machine control system |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9153960B2 (en) | 2004-01-15 | 2015-10-06 | Comarco Wireless Technologies, Inc. | Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices |
US7868486B2 (en) | 2004-01-15 | 2011-01-11 | Comarco Wireless Technologies, Inc | Power supply having source determination circuitry utilized to disable battery charging circuitry in powered device |
US7646107B2 (en) | 2004-09-30 | 2010-01-12 | Targus Group Internatnional, Inc. | Programmable power adaptor |
US20060098358A1 (en) * | 2004-11-08 | 2006-05-11 | Wambsganss Peter M | Power supply configured to detect a power source |
US7408132B2 (en) * | 2004-11-08 | 2008-08-05 | Rrc Power Solutions Gmbh | Temperature sensor for power supply |
US7777463B2 (en) * | 2005-02-07 | 2010-08-17 | O2Micro International Limited | System, method and apparatus to automatically detect a type of a variable output DC power source |
US7554218B2 (en) * | 2005-08-12 | 2009-06-30 | Igo, Inc. | Power converter having airplane power source detector |
TWM289882U (en) * | 2005-10-13 | 2006-04-21 | Wistron Corp | Circuit board to reduce EMI, and its application on power converter and notebook computer |
US8266348B2 (en) * | 2005-11-08 | 2012-09-11 | American Power Conversion Corporation | System and method of communicating with portable devices |
US7653823B2 (en) * | 2006-03-20 | 2010-01-26 | Lenovo (Singapore) Pte. Ltd. | Method and apparatus for informing computer of power environment |
US20070234087A1 (en) * | 2006-03-29 | 2007-10-04 | Lenovo (Singapore) Pte. Ltd. | Method and apparatus for preventing over-current computer operation from limited power source |
US20080012427A1 (en) * | 2006-07-13 | 2008-01-17 | Scott Wilson | Power converter with integral battery |
US7759900B2 (en) * | 2008-04-02 | 2010-07-20 | American Power Conversion Corporation | Non-isolated charger with bi-polar inputs |
US8213204B2 (en) | 2009-04-01 | 2012-07-03 | Comarco Wireless Technologies, Inc. | Modular power adapter |
US8354760B2 (en) | 2009-10-28 | 2013-01-15 | Comarco Wireless Technologies, Inc. | Power supply equipment to simultaneously power multiple electronic device |
US9379558B2 (en) | 2011-03-08 | 2016-06-28 | Lenovo (Singapore) Pte. Ltd. | Dual rate charger for notebook computer |
US9071067B2 (en) * | 2011-05-12 | 2015-06-30 | Lenovo (Singapore) Pte. Ltd. | Fast battery charging system and method |
US9118240B2 (en) * | 2011-08-31 | 2015-08-25 | Comarco Wireless Technologies, Inc. | Power supply equipment providing multiple identification signals |
DE102011084147B4 (en) * | 2011-10-07 | 2018-12-27 | Continental Automotive Gmbh | Device for location-dependent configuration |
US8806702B2 (en) | 2012-03-30 | 2014-08-19 | Shop Vac Corporation | Portable vacuum cleaner |
US8550827B1 (en) | 2012-07-25 | 2013-10-08 | Targus Group International, Inc. | Multi-sleeve power tips |
US8821199B2 (en) | 2012-07-25 | 2014-09-02 | Targus Group International, Inc. | Multi-prong power tip adaptor |
US9271063B2 (en) | 2013-02-06 | 2016-02-23 | Zeikos Inc. | Power transferring headphones |
US9276539B2 (en) | 2013-02-06 | 2016-03-01 | Zeikos Inc. | Power transferring headphones |
US20140219465A1 (en) | 2013-02-06 | 2014-08-07 | Zeikos Inc. | Power transferring headphones |
WO2015096743A1 (en) | 2013-12-26 | 2015-07-02 | Mediatek Inc. | Multipath charger and charging method thereof |
CN104880262A (en) * | 2014-02-28 | 2015-09-02 | 鸿富锦精密工业(武汉)有限公司 | Power supply overheat indicating system |
US9997943B2 (en) * | 2014-12-11 | 2018-06-12 | Mediatek Inc. | Electronic device and power adapter capable of communicating with each other, and associated charging system |
EP3295539A1 (en) * | 2015-05-14 | 2018-03-21 | Efacec Electric Mobility, S.A. | Fast charging system for electric vehicles |
CN106936171B (en) * | 2015-12-29 | 2020-06-19 | 中国移动通信集团公司 | Charging control method, server, unmanned aerial vehicle, mobile charging station and system |
CN106936170B (en) * | 2015-12-29 | 2020-03-27 | 中国移动通信集团公司 | Charging control method, server, unmanned aerial vehicle, charging station and system |
TWI662772B (en) | 2018-02-13 | 2019-06-11 | 台達電子工業股份有限公司 | Adapter cable, adapter module and method of operating the same |
CN113285517B (en) * | 2021-07-23 | 2021-10-01 | 深圳英集芯科技股份有限公司 | Power adapter and charging control method |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6054846A (en) * | 1994-02-18 | 2000-04-25 | Ergo Mechanical Systems, Incorporated | Universal power-supply connection system for multiple electronic devices, and devices for use therewith |
JP3224756B2 (en) | 1997-04-16 | 2001-11-05 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Power supply device with internal AC adapter and portable electronic device |
JP3365745B2 (en) | 1999-05-13 | 2003-01-14 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Charge current control device |
US6567565B1 (en) | 1999-07-22 | 2003-05-20 | Xerox Corporation | Antialiased image rendering algorithm |
US6981895B2 (en) * | 1999-08-23 | 2006-01-03 | Patrick Potega | Interface apparatus for selectively connecting electrical devices |
GB0015871D0 (en) * | 2000-06-28 | 2000-08-23 | Rue De Int Ltd | A security device |
US6358096B1 (en) * | 2000-12-29 | 2002-03-19 | Gateway, Inc. | Multiple source power adapter for output power control |
US6751109B2 (en) * | 2001-10-31 | 2004-06-15 | Mobility Electronics, Inc. | Dual input AC/DC/ battery operated power supply |
TWI242318B (en) | 2001-11-29 | 2005-10-21 | Primax Electronics Ltd | Charger capable of converting multiple power sources |
US6903950B2 (en) | 2001-12-03 | 2005-06-07 | Mobility Electronics, Inc. | Programmable power converter |
US6628535B1 (en) * | 2002-03-20 | 2003-09-30 | Formosa Electronic Industries Inc. | Voltage converter with selectable DC output voltage level |
US6597565B1 (en) | 2002-05-10 | 2003-07-22 | Dell Products L.P. | Method and system to determine external power available and fault states |
US6828760B2 (en) * | 2002-10-22 | 2004-12-07 | Hewlett-Packard Development Company, L.P. | Electronic device that adjusts operation to accord with available power |
US7392099B2 (en) * | 2003-12-12 | 2008-06-24 | Hewlett-Packard Development Company, L.P. | System and method for power management when an operating voltage is between two thresholds |
-
2004
- 2004-01-15 US US10/758,933 patent/US7453171B2/en not_active Expired - Fee Related
-
2005
- 2005-01-13 EP EP20050250133 patent/EP1555733A3/en not_active Withdrawn
- 2005-01-14 CA CA 2493048 patent/CA2493048C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109980711A (en) * | 2017-12-28 | 2019-07-05 | 比亚迪汽车工业有限公司 | Electric car and electric machine control system |
Also Published As
Publication number | Publication date |
---|---|
US20050162020A1 (en) | 2005-07-28 |
EP1555733A3 (en) | 2006-11-02 |
CA2493048C (en) | 2008-04-08 |
US7453171B2 (en) | 2008-11-18 |
EP1555733A2 (en) | 2005-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20150114 |