enzo Posted September 9, 2004 Report Share Posted September 9, 2004 hi. i need to ask any guys out there.let's put it this way..i need to construct a circuit with only one BJT, one OPAMP and a single power supply where this schmitt trigger will then detect input signal between range 4V-8V and it will be used to control a relay via a transistor which operate as a switch...anyone have the idea?please help me..i'm kind of new in this electronic devices.. Quote Link to comment Share on other sites More sharing options...
ante Posted September 9, 2004 Report Share Posted September 9, 2004 Hi enzo,Welcome to this forum.Here is a good description : http://www.ibiblio.org/obp/books/socratic/output/opamp4.pdfThis is in German I hope it make sense to you. http://www.elektronik-kompendium.de/public/schaerer/opaschm.htmThis can be helpful : http://www.elektronik-kompendium.de/public/schaerer/opaschm.htm Quote Link to comment Share on other sites More sharing options...
enzo Posted September 15, 2004 Author Report Share Posted September 15, 2004 thank's a lot.. Quote Link to comment Share on other sites More sharing options...
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