ECE :: Analog Electronics
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A full wave rectifier circuit using centre tapped transformer and a bridge rectifier are fed at 100 V, 50 Hz. The frequencies of outputs in these two rectifiers are
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When the ac base voltage in a CE amplifier circuit is too high, the ac emitter current is
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When load is coupled to class A amplifier through transformer, efficiency decreases.
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In the circuit figure LED will be on when v1 is
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Figure shows a portion of linear v - i characteristics of diode. If applied voltage is + 6 V, the current will be
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A power transistor dissipates 5 W. If ambient temperature is 30° and case to air thermal resistance is 10° C/W, the case temperature is
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An R-C coupled amplifier has mid-frequency gain of 200 and a frequency response from 100 Hz to 20 kHz. A negative feedback network with β = 0.2 is incorporated into the amplifier circuit, the Bandwidth will be
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. Therefore, vi should be more than 6 V.
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