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Automatic darkening filter (ADF) eye protection device with improved drive circuitry
专利权人:
Donald William Greiner
发明人:
Donald William Greiner,Thomas Joe Hamilton
申请号:
US12894739
公开号:
US08264265B2
申请日:
2010.09.30
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An apparatus and methodology for operating an automatic darkening filter (ADF) eye protection device alternately applies an operating voltage to a pair of control terminals of an ADF device circuit in a continuing sequence, where a first polarity voltage is applied to the pair of terminals and then reversed. A delay period is provided between application of the alternating polarities. In some embodiments ground potential is applied to both terminals of the pair of terminals during the delay period.
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中国工程科技知识中心
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http://www.ckcest.cn/home/
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