First Edition‚ last update January 18‚ 2010 2 Lessons In Electric Circuits‚ Volume VI – Experiments By Tony R. Kuphaldt First Edition‚ last update January 18‚ 2010 i c 2002-2011‚ 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
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Study‚ design‚ and fabrication of power amplifier module to be used for low-attitude radar system operating at UHF band (820MHz-900MHz) Long Hoang Duc* Duong Bach Gia University of Engineering and Technology‚ Hanoi VNU 144th Xuan Thuy road‚ Cau Giay Dist Hanoi‚ Vietnam (*) Corresponding author Email: longhd@vnu.edu.vn University of Engineering and Technology‚ Hanoi VNU 144th Xuan Thuy‚ Cau Giay Dist Hanoi‚ Vietnam Email: duongbg@vnu.edu.vn Abstract—In this paper‚ we introduces
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element. Resistors are passive electronic devices that either limit current or allow for a drop in voltage. Resistors Resistors determine the flow of current in an electrical circuit. Where there is high resistance in a circuit‚ the flow of current is small. Where the resistance is low resistance‚ the flow of current is large. Ohm’s Law: The resistance is directly proportional to the voltage and inversely proportional to the current. Unit of Measurement The ohm (symbol: Ω) is the SI unit
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reviews the basic power supply design knowhow assumed in the rest of the book. In mains-supplied electronic systems the AC input voltage must be converted into a DC voltage with the right value and degree of stabilization. Figures 1 and 2 show the simplest rectifier circuits. In these basic configurations the peak voltage across the load is equal to the peak value of the AC voltage supplied by the transformer’s secondary winding. For most applications the output ripple produced by these circuits is too
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Resistor? An electric resistor is a two-terminal passive component specifically used to oppose and limit current. A resistor works on the principle of Ohm’s Law which states that voltage across the terminals of a resistor is directly proportional to the current flowing through it. Ohm’s‚Law: v=IR where V is the voltage applied across resistor‚ I is the current flowing through it‚ and R is the constant called resistance. The unit of resistance is ohms. Types of Resistors:
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Define the following: RESISTOR A resistor is a component of a circuit that resists the flow of electrical current. It has two terminals across which electricity must pass‚ and it is designed to drop the voltage of the current as it flows from one terminal to the other. Resistors are primarily used to create and maintain known safe currents within electrical components. Resistors are coated with paint or enamel‚ or covered in molded plastic to protect
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for ground‚ Pin 2 is for power supply and pin 3 is used as output. Pin diagram of TSOP1738 is shown below. Take care while connecting the pins of TSOP1738. Wrong lead connection of TSOP1738 may lead to sensor damage. CD4017 is a CMOS counter/ divider IC. It takes clock signal from the clock input and turn on the 10 output in sequence each time when it receives clock input pulses. It is the most popular IC and is extremely useful in project like Light Chaser‚ Matrix Die. Assemble the circuit as
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c. a voltage multiplier d. a voltage divider e. none of the above 3. The circuit shown in Fig.1. is a : a. series clipper b. shunt clipper c. series clamper d. shunt clamper e. all of above Fig.1. 4. The maximum reverse bias potential that can be applied to a Zener diode before it enters the Zener region is called the: a. threshold voltage b. peak inverse voltage c. barrier voltage d. depletion voltage e. none of the above 5. In the Zener region‚ the current can increase a lot and the voltage across
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LASER COMMUNICATION SYSTEM Naveen IV Sem‚Dept of Electronics & Communications Sahyadri College of Engineering & Management‚Mangalore ABSTRACT: Laser communication is one of the key area in wireless Communications. This paper includes analysis‚ optimization‚ design and system level development of signal transformation between satellites or any two sources. Which work similarly to fiber optic links‚ except the beam is transmitted through free space. While the transmitter and receiver must
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equal to the magnitude of ?VEE. These voltages are measured with respect to ground. To make a differential amplifier‚ the two circuits are connected as shown in fig. 1. The two +VCC and ?VEE supply terminals are made common because they are same. The two emitters are also connected and the parallel combination of RE1 and RE2 is replaced by a resistance RE. The two input signals v1 & v2 are applied at the base of Q1 and at the base of Q2. The output voltage is taken between two collectors. The
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