CIRCUIT IDEAS ELECTRONIC WATCHDOG TAPAN KUMAR MAHARANA I VED DWI S.C. H ere’s an electronic watchdog for your house that sounds to inform you that somebody is at the gate. The circuit comprises a transmitter unit and a receiver unit‚ which are mounted face to face on the opposite Fig. 4: Mounting arrangement for transmitter and receiver units Fig. 1: 38kHz IR transmitter circuit Fig. 3: Pin configurations of TSOP1738 and UM66 Fig. 2: Receiver circuit pillars of the
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CIRCUIT IDEAS BRAKE FAILURE INDICATOR D. MOHAN KUMAR o you want to get an early warning of brake failure while driving? Here is a brake failure indicator circuit that constantly monitors the condition of the brake and gives an audio-visual indi- IVEDI S.C. DW D monitoring the brake switch and reminds you of the condition of the brake every time the brake is applied. The circuit uses an op-amp IC CA3140 (IC2) as voltage comparator and timer NE555 (IC3) in monostable configuration for
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to its outputs. You should assemble the prototype board version of the circuit in stages‚ checking that each stage is working properly before proceeding the to the next stage. To see the 4017 in action‚ you need to build an astable. The easiest way to do this is using a 4093 Schmitt trigger NAND gate integrated circuit. Start by building the astable section on your prototype board: 4. RESET and ENABLE inputs Modify your circuit so that the RESET and ENABLE inputs are each connected to 0 V through
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Fourth Edition‚ last update June 29‚ 2002 2 Lessons In Electric Circuits‚ Volume II – AC By Tony R. Kuphaldt Fourth Edition‚ last update June 29‚ 2002 i c 2000-2002‚ Tony R. Kuphaldt This book is published under the terms and conditions of the Design Science License. These terms and conditions allow for free copying‚ distribution‚ and/or modification of this document by the general public. The full Design Science License text is included in the last chapter. As an open and collaboratively
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PREPARED BY RATUL PAUL(08122003049) SAMOSHRI MITRA(08122003058) DEBAPAM DAS(081220030) ARNAB BISWAS(08122003023) UNDER THE GUIDANCE OF Prof. Ramanath Dutta Department of Electronics and Communication Engineering ST. THOMAS’ COLLEGE OF ENGINEERING & TECHNOLOGY 4 Diamond Harbour Road‚ Kidderpore Kolkata 700 023 CERTIFICATE Department of Electronics and Communication Engineering ST. THOMAS’ COLLEGE OF ENGINEERING &TECHNOLOGY‚ KOLKATA This
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be of permanent magnet type (PMMC) or dynamometer type. The permanent magnet‚ polarized instruments are used for the measurement of DC voltage/current while the dynamometer type instruments are used for the measurement of power in both DC and AC circuits. The operation of PMMC instrument is based on the principle that: when a current carrying conductor is placed in a magnetic field‚ it is acted upon by a force‚ which tends to move it to one side‚ out of the field. These instruments consist of
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mechanically‚ but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits)‚ or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits‚ repeating the signal coming in from one circuit and re-transmitting it to another. Relays were used extensively in telephone exchanges and early computers to perform
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AC Circuit. | CrazyEngineers Log in or Sign up Home Search Forums Search Forums Community Community What’s New? What’s New? Members VoiCE Small Talk Help Search... Electrical Wire www.Alibaba.com Login / Sign-Up (Free) Login with Facebook Login / Sign-Up (Free) Wholesale Suppliers & Factory Price Contact Directly & Get Live Quotes! Home Community CE : Technical Discussions Elec tric al | Elec tronic s | Communic ations How does current flow in an AC Circuit. Discussion
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A GUIDE TO BUILDING CIRCUITS and USING A MULTIMETER TO MEASURE RESISTANCE‚ VOLTAGE‚ AND CURRENT PART A: USING THE BREADBOARD TO BUILD A CIRCUIT The "breadboard" consists of a block of white plastic with two sets of five rows of holes. Each set of rows looks like . . . . . . . . . . . . . . . . . . etc. . . . . . . . .
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and Differentiator 4 The design of the circuit: \ 4 The MATLAB code : Sine wave : 7 Square wave 7 Operational Amplifier Based Function Generator Introduction: In these papers I will talk about op-amp to make function generator‚ and generate square‚ triangle and sine waves. Op-amp (operational amplifier) is a fundamental active element of analog circuit design. The first op amps were vacuum-tube circuits consuming lots of space and energy but
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