A battery charging circuit

A battery charging circuit

A circuit for charging batteries B1 - B4 comprises means for supplying a charging current to each battery, load application circuits (400) for applying a load to each battery and control means comprising a main control unit (200), charging control circuit (300) and discharging control circuit (400)...

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Hauptverfasser: WILSON WAI BUN LAM, PETER KA-TAI SUN
Format: Patent
Sprache:eng
Schlagworte:
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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creator WILSON WAI BUN LAM
PETER KA-TAI SUN
description A circuit for charging batteries B1 - B4 comprises means for supplying a charging current to each battery, load application circuits (400) for applying a load to each battery and control means comprising a main control unit (200), charging control circuit (300) and discharging control circuit (400) for connecting the charging current supply means and load applying circuits (400) alternately to the batteries. The circuit enables alkaline and nickel-cadmium batteries to be recharged. The main control unit initially measures the internal resistance of the battery and charging is prevented if the measured value exceeds a preset value. The circuit also monitors the load voltage to determine if the battery requires charging, charging being terminated when the charging voltage exceeds a preset value or when the rate of increase of the charging voltage is less than a preset value.
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The circuit enables alkaline and nickel-cadmium batteries to be recharged. The main control unit initially measures the internal resistance of the battery and charging is prevented if the measured value exceeds a preset value. The circuit also monitors the load voltage to determine if the battery requires charging, charging being terminated when the charging voltage exceeds a preset value or when the rate of increase of the charging voltage is less than a preset value.</description><edition>6</edition><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>1996</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&amp;date=19960207&amp;DB=EPODOC&amp;CC=GB&amp;NR=2292024A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19960207&amp;DB=EPODOC&amp;CC=GB&amp;NR=2292024A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WILSON WAI BUN LAM</creatorcontrib><creatorcontrib>PETER KA-TAI SUN</creatorcontrib><title>A battery charging circuit</title><description>A circuit for charging batteries B1 - B4 comprises means for supplying a charging current to each battery, load application circuits (400) for applying a load to each battery and control means comprising a main control unit (200), charging control circuit (300) and discharging control circuit (400) for connecting the charging current supply means and load applying circuits (400) alternately to the batteries. 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The circuit enables alkaline and nickel-cadmium batteries to be recharged. The main control unit initially measures the internal resistance of the battery and charging is prevented if the measured value exceeds a preset value. The circuit also monitors the load voltage to determine if the battery requires charging, charging being terminated when the charging voltage exceeds a preset value or when the rate of increase of the charging voltage is less than a preset value.</abstract><edition>6</edition><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
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
title A battery charging circuit
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