Load Capacitance Effect

Load Capacitance Effect: Capacitance connected at the output of an operational amplifier is termed Load Capacitance Effect (CL). Figure 15-20 shows that CL is in series with the op-amp output resistance…

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Effect of Internal Transistor Capacitance

Effect of Internal Transistor Capacitance: As we know already that at high frequencies, the coupling and bypass capacitors act as short circuit due to their low reactance and hence the…

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Transition and Diffusion Capacitance

Transition and Diffusion Capacitance: Transition and Diffusion Capacitance - Electronic devices are inherently sensitive to very high frequencies. Most shunt capacitive effects that can be ignored at lower frequencies due…

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Stray Capacitance Effects

Stray Capacitance Effects: Stray Capacitance Effects (Cs) at the input terminals of an operational amplifier effectively introduces an additional phase-lag network in the feedback loop, (see Fig. 15-17), thus making…

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BJT Cutoff Frequency and Capacitance

BJT Cutoff Frequency and Capacitance: Device Cutoff Frequency - All transistors have junction capacitances. The junction capacitances and the transit time of charge carriers through the semiconductor material limit the…

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Capacitance Voltage Dividers

Capacitance Voltage Dividers: Capacitance voltage dividers are ideal for measurement of fast rising voltages and pulses. The capacitance ratio is independent of the frequency, if their leakage resistance is high…

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Capacitance Voltage Transformer

Capacitance Voltage Transformer: The errors due to harmonic voltages can be eliminated by the use of capacitive voltage dividers with an electrostatic voltmeter or a high impedance meter such as…

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