Out-of-Step Protection for Generators
... The operation of the scheme is simple and straightforward. Figure 6 shows the relay characteristics and an assumed impedance locus (F-K). Proper operation of the scheme depends upon the impedance locus entering the offset mho unit and crossing both blinder characteristics. By the time the impedance ...
... The operation of the scheme is simple and straightforward. Figure 6 shows the relay characteristics and an assumed impedance locus (F-K). Proper operation of the scheme depends upon the impedance locus entering the offset mho unit and crossing both blinder characteristics. By the time the impedance ...
Document
... I recommend the OP07 for bioinstrumentation. However it is quite slow (0.1 V/μs). Why not choose a faster part? A 10mV signal of 5 kHz is amplified by 100. Will an amplifier with ft = 0.5MHz and 1 V/μs distort the output? From a noise analysis point of view, why should we reduce BW of ...
... I recommend the OP07 for bioinstrumentation. However it is quite slow (0.1 V/μs). Why not choose a faster part? A 10mV signal of 5 kHz is amplified by 100. Will an amplifier with ft = 0.5MHz and 1 V/μs distort the output? From a noise analysis point of view, why should we reduce BW of ...
Introduction - Class Home Pages
... No ESR - equivalent series resistance Help to reduce power and ground noise at high frequencies ...
... No ESR - equivalent series resistance Help to reduce power and ground noise at high frequencies ...
Lab-13-AC-Circuit-Measurements
... bottom ground node of your circuit. The WaveGen should be STOPPED or IDLE while you are setting up your circuit. b. The two scope channels are also provided by the Analog Discovery. Channel 1 will measure the input voltage coming from the WaveGen output, so it should be connected to the same two poi ...
... bottom ground node of your circuit. The WaveGen should be STOPPED or IDLE while you are setting up your circuit. b. The two scope channels are also provided by the Analog Discovery. Channel 1 will measure the input voltage coming from the WaveGen output, so it should be connected to the same two poi ...
Input Source Impedance and Its Effects on DC
... Equation (6) states that RE should be smaller than ri . However, from (7) it is clear that if RE is made too small, for example, by using highquality input capacitors for CE, the system could be under-damped and start to oscillate. For this reason, ceramic and film input capacitors are not recommen ...
... Equation (6) states that RE should be smaller than ri . However, from (7) it is clear that if RE is made too small, for example, by using highquality input capacitors for CE, the system could be under-damped and start to oscillate. For this reason, ceramic and film input capacitors are not recommen ...
Coaxial Cable Protection
... measured for a 900MHz 1/4 wave stub with a 3kA 8/20s test waveform and the stub output terminated in to a 50 ohm load). A higher peak voltage will be present if the equipment has internal capacitive coupling to the center conductor of the coax line and could cause arcing at the input. If it is indu ...
... measured for a 900MHz 1/4 wave stub with a 3kA 8/20s test waveform and the stub output terminated in to a 50 ohm load). A higher peak voltage will be present if the equipment has internal capacitive coupling to the center conductor of the coax line and could cause arcing at the input. If it is indu ...
ELEC 477 - facstaff.bucknell.edu
... trap’s load must be a capacitor. If l > l/4 (but less than l/2), then the load must be an inductor. Theoretically, an open circuit load (ZL = ) could be used if the cable were made exactly l/4 long; however, as mentioned above, open circuit terminations are avoided in practice. A shortcircuit l ...
... trap’s load must be a capacitor. If l > l/4 (but less than l/2), then the load must be an inductor. Theoretically, an open circuit load (ZL = ) could be used if the cable were made exactly l/4 long; however, as mentioned above, open circuit terminations are avoided in practice. A shortcircuit l ...
Module 2 : Transmission Lines Lecture 13 : Application of
... In general a short circuited section of a line is equivalent to a parallel resonant circuit. Similarly, the line is equivalent to a series resonant circuit. A converse is true for an open circuited section of a line i.e., if the length of the line is equal to odd multiples of line behaves like a ser ...
... In general a short circuited section of a line is equivalent to a parallel resonant circuit. Similarly, the line is equivalent to a series resonant circuit. A converse is true for an open circuited section of a line i.e., if the length of the line is equal to odd multiples of line behaves like a ser ...
lab10 - EECS: www-inst.eecs.berkeley.edu
... that you want. For example, if the speaker is 8 you’ll have a tough time getting an input impedance much above 1k, which is going to drag the gain of your gain stage down a lot. In ...
... that you want. For example, if the speaker is 8 you’ll have a tough time getting an input impedance much above 1k, which is going to drag the gain of your gain stage down a lot. In ...
Uses and Limitations of Micro-Synchrophasor
... it is very unlikely that the self and mutual impedance values of the line are completely uniform, as stated. It is possible that the OLS-estimated values are closer to the true impedance of the line than is our ground truth. We also must consider the error introduced by the voltage drop across the s ...
... it is very unlikely that the self and mutual impedance values of the line are completely uniform, as stated. It is possible that the OLS-estimated values are closer to the true impedance of the line than is our ground truth. We also must consider the error introduced by the voltage drop across the s ...
Or, How to Design a Differential Signaling Circuit
... That title may seem like a complete contradiction to the “wisdom” written in many design documents describing how to route differential pair signals. It is ---- and that is just what its intent is. Now that your attention has been caught, let’s look at differential signaling. Virtually all design ru ...
... That title may seem like a complete contradiction to the “wisdom” written in many design documents describing how to route differential pair signals. It is ---- and that is just what its intent is. Now that your attention has been caught, let’s look at differential signaling. Virtually all design ru ...
High Current Low Voltage Solution For Microprocessor
... the SAC, switching losses are minimized by virtue of the fact that the voltage across CRES in Figure 4 is a sinusoid. Therefore switching primary and secondary MOSFETs at the zero voltage transitions of the sinusoid, VSW and hence PSWLOSS2 in Eq. 4 is minimized. A practical implementation of a SAC c ...
... the SAC, switching losses are minimized by virtue of the fact that the voltage across CRES in Figure 4 is a sinusoid. Therefore switching primary and secondary MOSFETs at the zero voltage transitions of the sinusoid, VSW and hence PSWLOSS2 in Eq. 4 is minimized. A practical implementation of a SAC c ...
Nominal impedance
Nominal impedance in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of:The nominal value of the characteristic impedance of a cable or other form of transmission line.The nominal value of the input, output or image impedance of a port of a network, especially a network intended for use with a transmission line, such as filters, equalisers and amplifiers.The nominal value of the input impedance of a radio frequency antennaThe actual impedance may vary quite considerably from the nominal figure with changes in frequency. In the case of cables and other transmission lines, there is also variation along the length of the cable, if it is not properly terminated. It is usual practice to speak of nominal impedance as if it were a constant resistance, that is, it is invariant with frequency and has a zero reactive component, despite this often being far from the case. Depending on the field of application, nominal impedance is implicitly referring to a specific point on the frequency response of the circuit under consideration. This may be at low-frequency, mid-band or some other point and specific applications are discussed in the sections below.In most applications, there are a number of values of nominal impedance that are recognised as being standard. The nominal impedance of a component or circuit is often assigned one of these standard values, regardless of whether the measured impedance exactly corresponds to it. The item is assigned the nearest standard value.