THEORY: AppCAD is an easy-to-use program that provides you with
... Differential Impedance conversion. This function converts of a set of conventional, 2-port, single-ended S-parameters into a 1-port differential impedance. This feature is very useful for measuring balanced circuits with a standard vector network analyzer. ...
... Differential Impedance conversion. This function converts of a set of conventional, 2-port, single-ended S-parameters into a 1-port differential impedance. This feature is very useful for measuring balanced circuits with a standard vector network analyzer. ...
Lecture Notes File
... • If two sinusoids are in phase, then this means that the reach their maximum and minimum at the same time. • Sinusoids may be expressed as sine or cosine. • The conversion between them is: sin t 180 sin t cos t 180 cos t sin t 90 cos t cos t 90 sin t ...
... • If two sinusoids are in phase, then this means that the reach their maximum and minimum at the same time. • Sinusoids may be expressed as sine or cosine. • The conversion between them is: sin t 180 sin t cos t 180 cos t sin t 90 cos t cos t 90 sin t ...
AC Series and Parallel Circuits
... IV. Lab Procedure. Time Required: 45 minutes. Check-off each step as you complete it. Step One: Construct an AC series parallel circuit ...
... IV. Lab Procedure. Time Required: 45 minutes. Check-off each step as you complete it. Step One: Construct an AC series parallel circuit ...
Pulses in Cables
... Use the 41 LC units transmission line (TL), the unit pulse generator and power supply (SIGLENT SDG805). Hint: start with pulse width of 75 μs and frequency of 300 Hz. With no load, connect the pulse generator to TL and to Ch1 of oscilloscope using a TEE. The TL output will be connected to Ch2. Vary ...
... Use the 41 LC units transmission line (TL), the unit pulse generator and power supply (SIGLENT SDG805). Hint: start with pulse width of 75 μs and frequency of 300 Hz. With no load, connect the pulse generator to TL and to Ch1 of oscilloscope using a TEE. The TL output will be connected to Ch2. Vary ...
coax_explained
... So where does all this lost power go? Its dissipated as heat inside the cable. With a 100W transmitter you'll already notice your RG58 heating up after several minutes of transmission which is definitely not what you want. Watch out for the correct impedance:- RG-8 and RG-58 have 50 Ohm impedance, w ...
... So where does all this lost power go? Its dissipated as heat inside the cable. With a 100W transmitter you'll already notice your RG58 heating up after several minutes of transmission which is definitely not what you want. Watch out for the correct impedance:- RG-8 and RG-58 have 50 Ohm impedance, w ...
Sathyabama Univarsity M.E Dec 2010 Analysis of Rectifiers and
... using circulating current scheme. Sketch the relevant wave forms. (or) 10. A half controlled three phase bridge rectifier is supplied at 220V from a source of reactance 0.24/phase, neglecting resistance and device volt drops determine mean load voltage for level load current of 40A at a fixing dela ...
... using circulating current scheme. Sketch the relevant wave forms. (or) 10. A half controlled three phase bridge rectifier is supplied at 220V from a source of reactance 0.24/phase, neglecting resistance and device volt drops determine mean load voltage for level load current of 40A at a fixing dela ...
PowerPoint Presentation - More Microphone Design/Application
... Self-noise of device, measured in dB SPL or dBA (weighted). Generally not as pronounced as self-noise of other stages in recording chain, but more noticeable with technological advancements. Dynamic and Ribbon mic’s: s-n from movement of electrons in ribbon or coil. Condenser: s-n from built-in ...
... Self-noise of device, measured in dB SPL or dBA (weighted). Generally not as pronounced as self-noise of other stages in recording chain, but more noticeable with technological advancements. Dynamic and Ribbon mic’s: s-n from movement of electrons in ribbon or coil. Condenser: s-n from built-in ...
Standing wave ratio
In radio engineering and telecommunications, standing wave ratio (SWR) is a measure of impedance matching of loads to the characteristic impedance of a transmission line or waveguide. Impedance mismatches result in standing waves along the transmission line, and SWR is defined as the ratio of the partial standing wave's amplitude at an antinode (maximum) to the amplitude at a node (minimum) along the line.The SWR is usually thought of in terms of the maximum and minimum AC voltages along the transmission line, thus called the voltage standing wave ratio or VSWR (sometimes pronounced ""viswar""). For example, the VSWR value 1.2:1 denotes an AC voltage due to standing waves along the transmission line reaching a peak value 1.2 times that of the minimum AC voltage along that line. The SWR can as well be defined as the ratio of the maximum amplitude to minimum amplitude of the transmission line's currents, electric field strength, or the magnetic field strength. Neglecting transmission line loss, these ratios are identical.The power standing wave ratio (PSWR) is defined as the square of the VSWR, however this terminology has no physical relation to actual powers involved in transmission.The SWR can be measured with an instrument called an SWR meter. Since SWR is defined relative to the transmission line's characteristic impedance, the SWR meter must be constructed for that impedance; in practice most transmission lines used in these applications are coaxial cables with an impedance of either 50 or 75 ohms. Checking the SWR is a standard procedure in a radio station, for instance, to verify impedance matching of the antenna to the transmission line (and transmitter). Unlike connecting an impedance analyzer (or ""impedance bridge"") directly to the antenna (or other load), the SWR does not measure the actual impedance of the load, but quantifies the magnitude of the impedance mismatch just performing a measurement on the transmitter side of the transmission line.