SYSTEM Basic circuit Alarm Interface: We used LDR to detect Laser Light. LDR pin was Fed to Op-Amp input leg. Clock pulse to 4017 was taken from Op-Amp output pin. Light Dependent Resistor (LDR) LDRs or Light Dependent Resistors are very useful especially in light/dark sensor circuits. Normally the resistance of an LDR is very high‚ sometimes as high as 1000 000 ohms‚ but when they are illuminated with light resistance drops dramatically. Which acts as an sensor for our circuit. Op-Amp-741
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ABSTRACT The manual method of synchronization demands a skilled operator and the method is suitable for no load operation or normal frequency condition. under emergency condition such as lowering of frequency or synchronizing of large machines a very fast action is needed‚ which may not be possible for a human operator. Thus there is a need of autosynchroniser in a power station or in an industrial establishment where generator are employed. This paper describes a microprocessor based set
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the total circuit current in Figure 5.32a to 50mA. I1=Vs/R1= 12V/300Ω= 0.04 x 10^-3= 40mA I2=It – I1= 50mA – 40mA= 0.01 x 10^-3= 10mA R2=Vs/I2= 12V/10mA= 1200 x 10^3= 1.2kΩ 38. Figure 5.43 shows a potentiometer wired as a current divider. Determine the values of Rab and Rbc that will provide values of I1=4 mA and I2=6 mA. Rab= (4mA/10mA) x 100Ω= .4 x 100Ω= 40 Ω Rbc= (6mA/10mA) x 100Ω= .6 x 100Ω= 60Ω Chapter 6 Practice Problems 18. Determine the value of load power (PL) for the circuit shown in Figure
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make the 555 chip run in the ‘astable’ mode. The pin numbers are given in circles. Note the right-most side of the figure‚ and consider all the connections with the pins as ‘open-circuits’. Ignore the rest of the circuit for a while. D1 - Circuit Connections to be made This over-familiar circuit will majestically jump up. The Vc1 is the driving signal for this 555‚ connected at PIN 6‚ which is the THRESHOLD PIN. As soon as Vc1 reaches ⅔Vcc‚ then the output at PIN 3 goes low‚ and
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Assignment Chapter 7 Circuit Analysis Techniques 15. Derive the Thevenin equivalent of the circuit shown in Figure 7.47a. Req= (R1+R2)//(R3+R4)= 5.2k//1.5k= 1164 x 10^3= 1.2kΩ Rth= Req+R5= 1.2kΩ+1kΩ= 2200 x 10^3= 2.2kΩ Vth= Vs= 9V 16. Derive the Thevenin equivalent of the circuit shown in Figure 7.47b. Req= R1+R2= 22+33= 55Ω Vth= Vs x R3/Req+R3+R4= 12V x 120Ω/55+120+51 = 6.37V Rth= (R1+R2)//(R3+R4)= (22+33)//(120Ω+51Ω)= 41.6Ω 17. Derive the Thevenin equivalent of the circuit shown in Figure 7.48a
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up is very less and be easily supplied by the battery of the vehicle. This fact makes it a very easy circuit to setup. Also‚ as the whole set up is digitalized‚ there is no question of mechanical failure or frequent maintenance. If at all any failure does occur‚ the driver can immediately notice the failure of the circuit as no output value is shown on the display. Hence this is a fail-proof circuit‚ where the driver is always kept informed about the actual fuel levels. What makes this a very attractive
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and darkness changes its resistance is depends on the different types of LDR. ADVANTAGES Collection of parts of the circuit are easily available. Accuracy of this circuit is more than accuracy of other circuits. By using laser‚ it can be used for security purposes. It can be used to stop the wastage of electricity. The cost of circuit is low. This circuit saves the men’s power. USES It can be used in street lights. It can be used in mines areas. It can be used
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Cellphone-Based Remote Controller For Water Pump PROJECT REPORT ON Cellphone-Based Remote Controller For Water Pump B.E.(Electronics & Telecommunication engineering) BY VISHAL A. SABLE MAHESH G. RAUT Under
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A completion report is one of three reports. The situation is based on conditions that exist at the time a TSO directs as to when a circuit‚ trunk‚ or link is expected to be available. The 3 types of reports are In-Effect Report‚ Exception Report‚ and Delayed Service Report. In-Effect Report (IER) The facility or activity designated in the TSO (normally the CCO or CMO) will‚ within 72 duty hours (based on 24-hour workday not including weekends and holidays) of completion of action on
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Algorithm 4. Implementation 4.1. Sensor Circuit Motor Interface and Control Circuit 4.2. 4.3. Source Code 5. Possible Improvements 6. References and Resources 6.1. Books and Links 6.2. Tools of the trade 6.3. Electronic shops 6.4. Parts and Prices Page 2 of 17 Line Follower Summary The purpose of this document is to help you build a Line Following Robot. Starting with an overview of the system the document would cover implementation details like circuits and algorithms‚ followed by some suggestions
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