Line notches are an irregularity in the voltage waveform that appear as a notch. They’re typically present in the waveform during SCR commutation or when someone turns a one-phase SCR off and the next ...

Fig 8. Bandpass is formed by subtracting the notch output from the input. Fig 9. In this low-distortion sinewave oscillator, the lamp filament resistance forms a voltage divider with R5 in the ...

A conventional tracking switched-capacitor notch filter relies on a bandpass filter, a voltage-to-frequency converter, and a notch filter to track the incoming signal and remove undesired tones. The ...

After three years of work, NXP claims that, from the output voltage and current, its DSP can remove all guess-work by calculating resonant frequency live, as well as carving an appropriate notch out ...