Frequency Stability of Oscillator: An oscillator having initially been set at a particular frequency does not maintain its initial frequency, but instead drift and wander about in frequency, sometimes uniformly…
Power System Stability Interview Questions and Answers: 1. Define stability limit. Ans. A stability limit is the maximum power flow possible through some particular point in the system or the…
Digitally Controlled Frequency Synthesizers Interview Questions and Answers: 1. What is PLL? Ans. PLL is basically an electronic circuit that consists of a phase detector, a low-pass filter, a dc amplifier…
Single Stage Amplifier Frequency Response and Phase Response Curves: The voltage gain of a single-stage transistor amplifier commences to fall off at some high frequency. This fall-off may be due…
Operational Amplifier Frequency Response Articles: Operational Amplifier Circuit Stability: Loop Gain and Loop Phase Shift – Consider the inverting amplifier circuit and waveforms in Fig. 15-Â1(a). The signal voltage voltage…
Circuit Stability Precautions: Power Supply Decoupling - Feedback along supply lines is another source of op-amp circuit instability. This can be minimized by connecting 0.01 μF high-frequency capacitors from each…
Frequency Compensation Methods: Phase-Lag and Phase-Lead Compensation - Lag compensation and lead compensation are two Frequency Compensation Methods often employed to stabilize op-amp circuits. The phase-lag network in Fig. 15-7(a)…
Operational Amplifier Circuit Stability: Loop Gain and Loop Phase Shift - Consider the inverting amplifier circuit and waveforms in Fig. 15-Â1(a). The signal voltage voltage (vs) is amplified by a…