US Patent 7141814 Input circuit
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Patent abstract
An input circuit has a first current-limiting resistor, a second current-limiting resistor, and an AC-input photocoupler. The photocoupler has an input terminal connected to a first external terminal and another input terminal connected to a positive electrode through the first current-limiting resistor and also to a ground electrode through the second current-limiting resistor. The first external terminal is connected to a PNP transistor and NPN transistors.
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US Patent 07141814 Input circuit US Patent 7141814 Input circuit
Infobox
Patent Number
0714181400
Patent Number
714181400
Edits on 24 May, 2023
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Official Website
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Infobox
Is a
Patent Jurisdiction
Patent Number
071418140
Date of Patent
November 28, 2006
0Patent Application Number
109791300
Date Filed
November 3, 2004
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
071418140
Date of Patent
November 28, 2006
0Patent Application Number
109791300
Date Filed
November 3, 2004
0Official Website
Patent Primary Examiner
Edits on 8 Jun, 2022
Golden AI
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Edits on 19 Nov, 2021
Golden AI
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US Patent 07141814 Input circuit
Infobox
Is a
Patent jurisdiction
Patent number
07141814
Date of patent
November 28, 2006
Patent application number
10979130
Date Filed
November 3, 2004
Patent primary examiner
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