VERY LOW DUTY CYCLE PULSE WIDTH MODULATOR

An apparatus which outputs very low duty cycle pulses of a consistent width. It is common to use a pulse width modulator as part of a liquid crystal display dimming system to vary the brightness. In the typical pulse width modulating scheme for lamp dimming, certain noise irregularities may appear a...

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1. Verfasser:	PRAISWATER, MICHAEL, R
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRONIC CIRCUITRY CRYPTOGRAPHY DISPLAY EDUCATION ELECTRICITY PHYSICS PULSE TECHNIQUE SEALS
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creator	PRAISWATER, MICHAEL, R
description	An apparatus which outputs very low duty cycle pulses of a consistent width. It is common to use a pulse width modulator as part of a liquid crystal display dimming system to vary the brightness. In the typical pulse width modulating scheme for lamp dimming, certain noise irregularities may appear at the beginning of a ramping voltage. These irregularities result in pulse widths which vary greatly. In the present invention, the slope of the ramping voltage is greatly increased at the beginning of the period, thus making the comparison between the reference voltage and the ramping voltage more accurate.
format	Patent
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In the typical pulse width modulating scheme for lamp dimming, certain noise irregularities may appear at the beginning of a ramping voltage. These irregularities result in pulse widths which vary greatly. In the present invention, the slope of the ramping voltage is greatly increased at the beginning of the period, thus making the comparison between the reference voltage and the ramping voltage more accurate.</description><edition>6</edition><language>eng ; fre ; ger</language><subject>ADVERTISING ; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION ; BASIC ELECTRONIC CIRCUITRY ; CRYPTOGRAPHY ; DISPLAY ; EDUCATION ; ELECTRICITY ; PHYSICS ; PULSE TECHNIQUE ; SEALS</subject><creationdate>1999</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=19990929&DB=EPODOC&CC=EP&NR=0944957A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990929&DB=EPODOC&CC=EP&NR=0944957A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PRAISWATER, MICHAEL, R</creatorcontrib><title>VERY LOW DUTY CYCLE PULSE WIDTH MODULATOR</title><description>An apparatus which outputs very low duty cycle pulses of a consistent width. It is common to use a pulse width modulator as part of a liquid crystal display dimming system to vary the brightness. In the typical pulse width modulating scheme for lamp dimming, certain noise irregularities may appear at the beginning of a ramping voltage. These irregularities result in pulse widths which vary greatly. In the present invention, the slope of the ramping voltage is greatly increased at the beginning of the period, thus making the comparison between the reference voltage and the ramping voltage more accurate.</description><subject>ADVERTISING</subject><subject>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>CRYPTOGRAPHY</subject><subject>DISPLAY</subject><subject>EDUCATION</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>PULSE TECHNIQUE</subject><subject>SEALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAMcw2KVPDxD1dwCQ2JVHCOdPZxVQgI9Ql2VQj3dAnxUPD1dwn1cQzxD-JhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAQaWJiaWpuaOhsZEKAEA9rskMg</recordid><startdate>19990929</startdate><enddate>19990929</enddate><creator>PRAISWATER, MICHAEL, R</creator><scope>EVB</scope></search><sort><creationdate>19990929</creationdate><title>VERY LOW DUTY CYCLE PULSE WIDTH MODULATOR</title><author>PRAISWATER, MICHAEL, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0944957A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1999</creationdate><topic>ADVERTISING</topic><topic>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>CRYPTOGRAPHY</topic><topic>DISPLAY</topic><topic>EDUCATION</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>PULSE TECHNIQUE</topic><topic>SEALS</topic><toplevel>online_resources</toplevel><creatorcontrib>PRAISWATER, MICHAEL, R</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PRAISWATER, MICHAEL, R</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VERY LOW DUTY CYCLE PULSE WIDTH MODULATOR</title><date>1999-09-29</date><risdate>1999</risdate><abstract>An apparatus which outputs very low duty cycle pulses of a consistent width. It is common to use a pulse width modulator as part of a liquid crystal display dimming system to vary the brightness. In the typical pulse width modulating scheme for lamp dimming, certain noise irregularities may appear at the beginning of a ramping voltage. These irregularities result in pulse widths which vary greatly. In the present invention, the slope of the ramping voltage is greatly increased at the beginning of the period, thus making the comparison between the reference voltage and the ramping voltage more accurate.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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language	eng ; fre ; ger
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subjects	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRONIC CIRCUITRY CRYPTOGRAPHY DISPLAY EDUCATION ELECTRICITY PHYSICS PULSE TECHNIQUE SEALS
title	VERY LOW DUTY CYCLE PULSE WIDTH MODULATOR
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