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Generation ofwide-band FM can be done by variousmeans.However, only themost common and conceptually the simplest one, known as the direct method, is considered here. It employs a voltage-controlled oscillator (VCO) as a modulator. A VCO is an oscillator whose oscillation frequency is equal to the resonant frequency of a tuned circuit, as shown in Figure. The frequency can be varied if either the inductance or the capacitance is made voltage-sensitive to the message signal f (t).
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To do the basic laboratory experiments related to the electrical engineering course, students need to have some basic understanding about the measuring tools, apparatus, components
how can yuo calculate voltage,curent basing on the meter bridge?
(a) A second order Sallen and Key Low Pass Active Filter has these component values R 1 =R 2 =15 kΩ, C 1 =C 2 =1 nF and the feedback resistors are R 3 =3.9 kΩ and R 4 =2.3 kΩ
When MT 2 is Negative and g is positive In this case gate current flows through junctions P 2 N 2 electrons are injected from N 2 layer to P 2 a result junct
A synchronous motor with a synchronous reactance of 12 ohms is operating with a current of 100 A at unity power factor supplying power to a large compressor. The phasor diagram for
Q. J and K are the external inputs to the JKFF shown in Figure. Note that gates 1 and 2 are enabled only when the clock pulse is high. Consider the four cases of operation and expl
Explain the Construction of Synchronous Machines? Basically all synchronous machines require a DC excited field winding in order to produce magnetic flux. For majority of machi
IGBT ( Insulated Gate Bipolar Transistor ) IGBT stands for insulated gate bipolar transistor. It is having the advantages of both power MOSFET and BJT. In IGBT layer is P
Q. Explain working of CRT with suitable diagram discuss the focusing arrangement. What is need of aquadag? OR Why are the operating voltages of a cathode ray tube arran
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