DETECTING AND SWITCHING BATTERY POLARITY IN A BATTERY CHARGER
Disclosed herein, among other things, are apparatus and methods for detecting and switching battery polarity in a battery charger. In various embodiments, a method includes grounding a first terminal of a battery inserted in a charger and sensing a bipolar voltage from a second terminal of the batte...
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creator | NEWTON JAMES R |
description | Disclosed herein, among other things, are apparatus and methods for detecting and switching battery polarity in a battery charger. In various embodiments, a method includes grounding a first terminal of a battery inserted in a charger and sensing a bipolar voltage from a second terminal of the battery. The bipolar voltage is converted to a reduced unipolar voltage for sensing by an input to a microcontroller. A low resistance analog switch connects the battery to a charging circuit. The switch state of the analog switch is controlled using an output of the microcontroller, to present the proper battery polarity to the charging circuit based on the unipolar voltage. The battery is charged using the charging circuit, in various embodiments. |
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In various embodiments, a method includes grounding a first terminal of a battery inserted in a charger and sensing a bipolar voltage from a second terminal of the battery. The bipolar voltage is converted to a reduced unipolar voltage for sensing by an input to a microcontroller. A low resistance analog switch connects the battery to a charging circuit. The switch state of the analog switch is controlled using an output of the microcontroller, to present the proper battery polarity to the charging circuit based on the unipolar voltage. The battery is charged using the charging circuit, in various embodiments.</description><language>eng</language><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; GENERATION ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; PUBLIC ADDRESS SYSTEMS ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>2013</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=20130117&DB=EPODOC&CC=US&NR=2013015824A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130117&DB=EPODOC&CC=US&NR=2013015824A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NEWTON JAMES R</creatorcontrib><title>DETECTING AND SWITCHING BATTERY POLARITY IN A BATTERY CHARGER</title><description>Disclosed herein, among other things, are apparatus and methods for detecting and switching battery polarity in a battery charger. In various embodiments, a method includes grounding a first terminal of a battery inserted in a charger and sensing a bipolar voltage from a second terminal of the battery. The bipolar voltage is converted to a reduced unipolar voltage for sensing by an input to a microcontroller. A low resistance analog switch connects the battery to a charging circuit. The switch state of the analog switch is controlled using an output of the microcontroller, to present the proper battery polarity to the charging circuit based on the unipolar voltage. 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In various embodiments, a method includes grounding a first terminal of a battery inserted in a charger and sensing a bipolar voltage from a second terminal of the battery. The bipolar voltage is converted to a reduced unipolar voltage for sensing by an input to a microcontroller. A low resistance analog switch connects the battery to a charging circuit. The switch state of the analog switch is controlled using an output of the microcontroller, to present the proper battery polarity to the charging circuit based on the unipolar voltage. The battery is charged using the charging circuit, in various embodiments.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATION LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS SYSTEMS FOR STORING ELECTRIC ENERGY |
title | DETECTING AND SWITCHING BATTERY POLARITY IN A BATTERY CHARGER |
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