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Q Explain about 'Darlington Amplifier'?
DARLINGTON AMPLIFIER : A CC stage followed by another CC stage has an input resistance of about (b + 1) 2 times the emitter resistance of the second stage. More precisely, using the b transform, it is
If RE1 is removed, the second term is about b2 times RE2. Furthermore, if the collectors are connected together, the result is a Darlington stage, as shown below.
This stage can be viewed as a "Darlington transistor" because it has three terminals and an equivalent b of about b2 . Darlington BJTs can be used in any of the three BJT configurations.
Q. Show Process of Power transmission and distribution? The structure of a power system can be divided into generation (G), transmission, (T), and distribution (D) facilities,
residual voltage in potential transformer
Q. Input offset current of operational amplifier? The adverse effect of the input bias current mentioned would be nulli?ed if both inputs were connected to equal resistances (o
If a second current carrying conductor is placed near to the first and the corresponding magnetic fields drawn, we can begin to visualise why a force is created between them. If
Q. Determine the function of time for the clock? Given the block diagram for a 4-bit shift-left register shown in Figure (a), draw the output (Q 0 , Q 1 , Q 2 , Q 3 , and data
when MT 2 and Gate is Negative In this case gate current flows through P 2 N 3 junction. Junction N 1 P 2 forward biased hence the triac starts conduction through P
Q. Explain the use of CRO for frequency measurement. Measurement of frequency: The frequency of the periodic signals is easily measured with a CRO. The frequency of a si
It is required that the current floor position be displayed as a number 1, 2, or 3 on a seven segment LED display on floor 1, which is quite close to the LCU. Data Storage It
Q. Draw the differentiator circuit. Explain its principle of operation with necessary waveforms ? A circuit in which the output voltage is directly proportional to the derivati
state seven main requirement for insulators
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