Acoustic Impedance Measurements
... How lock-in amplifiers work: Pick out any components of the desired frequency; in this case, the function generator's frequency Resolve vector into real (in phase) and imaginary (perfectly out of phase) parts Record the real and imaginary values separately ...
... How lock-in amplifiers work: Pick out any components of the desired frequency; in this case, the function generator's frequency Resolve vector into real (in phase) and imaginary (perfectly out of phase) parts Record the real and imaginary values separately ...
Power VS Frequency - Pulse Electronics
... reduces the number of available pins for other windings in multi winding applications and might force the designers to use custom bobbins. 2. The insulation coating of the Litz wires reduces the available bobbin area in order to fit all the turns, we need to create more layers and increase the heigh ...
... reduces the number of available pins for other windings in multi winding applications and might force the designers to use custom bobbins. 2. The insulation coating of the Litz wires reduces the available bobbin area in order to fit all the turns, we need to create more layers and increase the heigh ...
EL6413 Catalog Description
... Basic semiconductor physics, small-signal low frequency models for bipolar junction transistors, biasing, and temperature compensation techniques. Physics, models, and biasing for field-effect transistors. General treatment of nonlinear controlled sources. High frequency models. Single and multistag ...
... Basic semiconductor physics, small-signal low frequency models for bipolar junction transistors, biasing, and temperature compensation techniques. Physics, models, and biasing for field-effect transistors. General treatment of nonlinear controlled sources. High frequency models. Single and multistag ...
Experiment #68 — Phase Locked Loops, the Basics
... product at the difference of the itself. Phase refers to the relative two input signal frequencies, phase difference between an infA and fB, is cos(2π[fA – fB] put signal and the loop’s internal t + θ), with θ representing the oscillator. Locked means that difference in phase between the oscillator ...
... product at the difference of the itself. Phase refers to the relative two input signal frequencies, phase difference between an infA and fB, is cos(2π[fA – fB] put signal and the loop’s internal t + θ), with θ representing the oscillator. Locked means that difference in phase between the oscillator ...
Chirp spectrum
The spectrum of a chirp pulse describes its characteristics in terms of its frequency components. This frequency-domain representation is an alternative to the more familiar time-domain waveform, and the two versions are mathematically related by the Fourier transform. The spectrum is of particular interest when pulses are subject to signal processing. For example, when a chirp pulse is compressed by its matched filter, the resulting waveform contains not only a main narrow pulse but, also, a variety of unwanted artifacts many of which are directly attributable to features in the chirp's spectral characteristics. The simplest way to derive the spectrum of a chirp, now computers are widely available, is to sample the time-domain waveform at a frequency well above the Nyquist limit and call up an FFT algorithm to obtain the desired result. As this approach was not an option for the early designers, they resorted to analytic analysis, where possible, or to graphical or approximation methods, otherwise. These early methods still remain helpful, however, as they give additional insight into the behavior and properties of chirps.