High-fidelity PWM inverter for digital audio amplification
... When the discrete power sources can be generated efficiently, PWM provides the basis for highly efficient signal delivery, especially to loads with low-pass characteristics. Thus a PWM signal prepared from an audio input can be used as a switching function for a bridge or half-bridge inverter, and a ...
... When the discrete power sources can be generated efficiently, PWM provides the basis for highly efficient signal delivery, especially to loads with low-pass characteristics. Thus a PWM signal prepared from an audio input can be used as a switching function for a bridge or half-bridge inverter, and a ...
OptiSystem - cloudfront.net
... The photodetector plays an important role in defining the ultimate sensitivity of a basic communication system as it contributes statistical perturbations in the form of shot (quantum-based) and thermal noise. It also introduces a dark current (which can be viewed as DC noise) and has a defined Resp ...
... The photodetector plays an important role in defining the ultimate sensitivity of a basic communication system as it contributes statistical perturbations in the form of shot (quantum-based) and thermal noise. It also introduces a dark current (which can be viewed as DC noise) and has a defined Resp ...
FM_Lecture3 - WordPress.com
... the form of 3rd and higher harmonics of f m . However by restricting f 0.2 , the residual AM and harmonic distortion are negligible levels. The NBFM generation is given by ...
... the form of 3rd and higher harmonics of f m . However by restricting f 0.2 , the residual AM and harmonic distortion are negligible levels. The NBFM generation is given by ...
Critical frequency - TEIION e
... The position of the resistors and capacitors in the frequencyselective circuit are opposite in low pass configuration. There are two high-pass RC circuits that provide a roll-off of -40 dB/decade ...
... The position of the resistors and capacitors in the frequencyselective circuit are opposite in low pass configuration. There are two high-pass RC circuits that provide a roll-off of -40 dB/decade ...
CHAPTER+5+-+ACTIVE+FILTER
... The position of the resistors and capacitors in the frequencyselective circuit are opposite in low pass configuration. There are two high-pass RC circuits that provide a roll-off of -40 dB/decade ...
... The position of the resistors and capacitors in the frequencyselective circuit are opposite in low pass configuration. There are two high-pass RC circuits that provide a roll-off of -40 dB/decade ...
acoustics for violin and guitar makers
... demonstrate this, played music has been analysed with filters corresponding to the so- called critical bands of hearing, cf., Fig. 9.8. It is easily seen that the spectra are different in the different directions, especially at high frequencies. The spectrum corresponding to radiation in the neck di ...
... demonstrate this, played music has been analysed with filters corresponding to the so- called critical bands of hearing, cf., Fig. 9.8. It is easily seen that the spectra are different in the different directions, especially at high frequencies. The spectrum corresponding to radiation in the neck di ...
EMI Suppression in High Frequency Half Bridge Converter
... amplitudes of the harmonics are still higher than the CISPR limit. Therefore, in order to further reduce the conducted EMI of the power converter, a line filter is required to suppress fundamental frequency component as well as higher order harmonics up to 30 MHz. In relation to the design for a lin ...
... amplitudes of the harmonics are still higher than the CISPR limit. Therefore, in order to further reduce the conducted EMI of the power converter, a line filter is required to suppress fundamental frequency component as well as higher order harmonics up to 30 MHz. In relation to the design for a lin ...
Critical frequency
... The position of the resistors and capacitors in the frequencyselective circuit are opposite in low pass configuration. There are two high-pass RC circuits that provide a roll-off of -40 dB/decade ...
... The position of the resistors and capacitors in the frequencyselective circuit are opposite in low pass configuration. There are two high-pass RC circuits that provide a roll-off of -40 dB/decade ...
(AFE) Drives - Mirus International
... treatment of harmonics associated with variable frequency drives (VFDs). They are quick to point out benefits over standard 6-Pulse VFDs equipped with diode bridge rectifiers such as, reduced line current harmonics, improved power factor and inherent regenerative capabilities. But they will hide the ...
... treatment of harmonics associated with variable frequency drives (VFDs). They are quick to point out benefits over standard 6-Pulse VFDs equipped with diode bridge rectifiers such as, reduced line current harmonics, improved power factor and inherent regenerative capabilities. But they will hide the ...
Spur-Reduction Frequency Synthesizer Exploiting Randomly
... fast spikes that modulate the VCO control line and generate spurious signals at the reference frequency offset, the harmonics of which reduce SFDR performance in communication systems. The spur at the reference frequency is difficult to filter out. Higher harmonics are generally filtered out using a ...
... fast spikes that modulate the VCO control line and generate spurious signals at the reference frequency offset, the harmonics of which reduce SFDR performance in communication systems. The spur at the reference frequency is difficult to filter out. Higher harmonics are generally filtered out using a ...
User Manual CFG280 11 MHz Function Generator 070-8559-03
... shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations. This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obliga ...
... shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations. This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obliga ...
APN5001: Theory and Application of Sampling Phase Detector
... of the input crystal frequency. The operating range of the sampling phase detector is heavily dependent on the narrow pulse generated by the SRD or the transition time of the SRD. The SRD also needs to recover before the next cycle of the crystal frequency. This is defined by the carrier lifetime of ...
... of the input crystal frequency. The operating range of the sampling phase detector is heavily dependent on the narrow pulse generated by the SRD or the transition time of the SRD. The SRD also needs to recover before the next cycle of the crystal frequency. This is defined by the carrier lifetime of ...
Spectrum analyzer
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that a spectrum analyzer measures is electrical, however, spectral compositions of other signals, such as acoustic pressure waves and optical light waves, can be considered through the use of an appropriate transducer. Optical spectrum analyzers also exist, which use direct optical techniques such as a monochromator to make measurements.By analyzing the spectra of electrical signals, dominant frequency, power, distortion, harmonics, bandwidth, and other spectral components of a signal can be observed that are not easily detectable in time domain waveforms. These parameters are useful in the characterization of electronic devices, such as wireless transmitters.The display of a spectrum analyzer has frequency on the horizontal axis and the amplitude displayed on the vertical axis. To the casual observer, a spectrum analyzer looks like an oscilloscope and, in fact, some lab instruments can function either as an oscilloscope or a spectrum analyzer.