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Q. Draw the complete circuit of a dual voltage source using 7805 and 7905.
A voltage regulator is a circuit that supplies a constant voltage regardless of changes in load currents. Although voltage regulators can be designed using op-amps, it is quicker and easy to use IC voltage regulators. Furthermore, IC voltage regulators are versatile and relatively inexpensive and are available with features such as a programmable output, current/voltage boosting, thermal shutdown and floating operation for high voltage applications. IC voltage regulators are of the following types
1. Fixed Output Voltage Regulators
a. Positive Voltage Regulators - IC 7800 Series
b. Negative Voltage Regulators - IC 7900 Series
2. Adjustable Output Voltage Regulators
a. Positive Voltage Regulators - IC LM317 Series
b. Negative Voltage Regulators - IC LM337 Series
Voltage regulators are commonly used for on-card regulation and laboratory-type power supplies.
The force between two wires 1 metre apart and each carrying 1 amp is 2 x 10 -7 Newtons when in a vacuum (or in practice, air).However, it is found experimentally that the force is
Explain the different instruction formats with examples The instruction set is grouped into the following formats One byte instruction MOV C,A Two byte instruction
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discuss the factor affecting the emf induced in electric machines
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Q. Determine the h-parameters for the circuit shown in Figure and obtain the transfer function V 2 /V 1 when I 2 = 0.
An oil-filled transformer has a c.m.r. of 500 kVA which allows it to run continuously in an ambient of 35°C with an oil temperature rise of 50°C. The transformer has a time constan
Techniques and resources Different techniques and resources were used in different areas of the problem during the course of the project. The most important of them was th
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