期刊名称：Faculty of Computer Science and Information Technology
出版年度：2007
卷号：0
期号：0
语种：English
出版社：Faculty of Computer Science and Information Technology
摘要：TTL logic circuits Investigators Using Operational Amplifier comparator(LM-339) For the Three Conditions electronic is a tool that uses a singleOp-Amp IC that functions as a comparator (LM339), some resistors, onecapacitor, four diodes relationships, and three fruit color LED. InvestigatorsTTL logic circuit uses the power supply of 5V, Fcc voltage going into thevoltage divider circuit (resistor), and together will activate the IC Op-Ampcomparator. Voltage is measured in test probes, and an input voltage dividercircuit at the foot of IC Op-Amp comparator. Hereinafter comparator comparesthe voltage between the legs of the IC input. Output comparator issued by thefoot will determine which LEDs are lit, meaning no LEDs are lit at the sametime. References, 5 (1988 - 2007)
