Amplification of biosignals by body potential driving. Analysis of the
... (i) to omit R 0 or to use the minimum possible value if R 0 is needed for some other reason (defibrillation protection etc.) (ii) to decrease the shielded cable capacitance Ck (iii) to decrease z to a reasonable minimum as a consequence of (i) and (ii). In the previous article (LEVKOV, 1982) it was ...
... (i) to omit R 0 or to use the minimum possible value if R 0 is needed for some other reason (defibrillation protection etc.) (ii) to decrease the shielded cable capacitance Ck (iii) to decrease z to a reasonable minimum as a consequence of (i) and (ii). In the previous article (LEVKOV, 1982) it was ...
Design and building of a 300 W MOSFET Push-Pull
... If the amplifier is well balanced, the currents flowing at the junction of both C capacitors are equal in amplitude and in opposite directions. That point is then acting as a virtual ground, so that the ground connection can be omitted and one capacitor (of half value) instead of two can be used. Th ...
... If the amplifier is well balanced, the currents flowing at the junction of both C capacitors are equal in amplitude and in opposite directions. That point is then acting as a virtual ground, so that the ground connection can be omitted and one capacitor (of half value) instead of two can be used. Th ...
Wideband Complementary Current Output DAC
... Note that this non-inverting gain includes the termination resistor to ground on the inverting input side (R4). This term has often been neglected in setting up these circuits because R4 is often << RG. In higher speed circuits, this becomes less true as RG becomes lower and R4 needs to be included ...
... Note that this non-inverting gain includes the termination resistor to ground on the inverting input side (R4). This term has often been neglected in setting up these circuits because R4 is often << RG. In higher speed circuits, this becomes less true as RG becomes lower and R4 needs to be included ...
Online Thévenin Equivalent Determination Considering
... calculated. However, it happens sometimes that both sides experience changes in the time between measurement instances. To study the effect of simultaneous variations in both sides on the determined TE, ...
... calculated. However, it happens sometimes that both sides experience changes in the time between measurement instances. To study the effect of simultaneous variations in both sides on the determined TE, ...
RF2472G 2.4GHz LOW NOISE AMPLIFIER WITH ENABLE Features
... in parallel with an inductor in the bias line on pin 5 will improve the stability of the circuit. See the application schematics for examples. The 10nH inductor in the bias line is part of an output impedance matching circuit. At higher frequencies, the impedance of the matching circuit, alone, woul ...
... in parallel with an inductor in the bias line on pin 5 will improve the stability of the circuit. See the application schematics for examples. The 10nH inductor in the bias line is part of an output impedance matching circuit. At higher frequencies, the impedance of the matching circuit, alone, woul ...
Common Mode Rejection Ratio Tester (CMRR 2.0) User
... voltage (10Vrms) with a normal multimeter will fail, because the meter has around 10MΩ input impedance. It is possible to use 1000:1 HV probe with an oscilloscope (100MΩ/3pF), but noise and other errors can be large. Even 100MΩ/3pF will load the circuit, so the voltage will change (increase) by abou ...
... voltage (10Vrms) with a normal multimeter will fail, because the meter has around 10MΩ input impedance. It is possible to use 1000:1 HV probe with an oscilloscope (100MΩ/3pF), but noise and other errors can be large. Even 100MΩ/3pF will load the circuit, so the voltage will change (increase) by abou ...
A Tutorial on Calculating Source Impedance Ratios
... For a distance element, the main protection issue presented by a high SIR is the voltage measured at the relay for an outof-zone fault. If the SIR is high, the voltage will be small and measurement errors can dominate the reach calculation. Distance elements use a comparator that uses current and vo ...
... For a distance element, the main protection issue presented by a high SIR is the voltage measured at the relay for an outof-zone fault. If the SIR is high, the voltage will be small and measurement errors can dominate the reach calculation. Distance elements use a comparator that uses current and vo ...
Microphones - Richard Brice ..... Books . Music . Audio
... and omnidirectional. Although this seems quite a radical change, in fact the modification to bring this about is relatively simple. In the U48, the left hand diaphragm in Fig. 35 is not simply paralleled when the switch is closed, as in the case when selecting the omnidirectional response in the U47 ...
... and omnidirectional. Although this seems quite a radical change, in fact the modification to bring this about is relatively simple. In the U48, the left hand diaphragm in Fig. 35 is not simply paralleled when the switch is closed, as in the case when selecting the omnidirectional response in the U47 ...
Control 30 - JBL Professional
... transducer element of the coaxial mid-high driver shall have an anodized aluminum cone with an EPDM rubber (a Terpolymer of Ethylene and Propylene) surround, with the frame protected from direct weather exposure. The compression driver shall be constructed with a titanium diaphragm for weather resis ...
... transducer element of the coaxial mid-high driver shall have an anodized aluminum cone with an EPDM rubber (a Terpolymer of Ethylene and Propylene) surround, with the frame protected from direct weather exposure. The compression driver shall be constructed with a titanium diaphragm for weather resis ...
Low Noise CSAC Datasheet
... the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and s ...
... the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and s ...
Paper 5a.3_publicati..
... gain compression of the FET. These oscillations occur only under large signal drive. The parametric oscillation often takes place at the sub-harmonic frequency Fin/n where Fin is the drive frequency and n is an integer value that could be as high as 30 [1]. This paper will focus on oscillations when ...
... gain compression of the FET. These oscillations occur only under large signal drive. The parametric oscillation often takes place at the sub-harmonic frequency Fin/n where Fin is the drive frequency and n is an integer value that could be as high as 30 [1]. This paper will focus on oscillations when ...
701k-G
... Tracing kit. The 701K-G Tone and Probe kit offers superior tracing for low voltage applications such as telephone, data, and security alarm wiring. Essential equipment for the internal wiring technician, the 701K-G provides the ability to check voltage on wire pairs as well as generate a tagging ton ...
... Tracing kit. The 701K-G Tone and Probe kit offers superior tracing for low voltage applications such as telephone, data, and security alarm wiring. Essential equipment for the internal wiring technician, the 701K-G provides the ability to check voltage on wire pairs as well as generate a tagging ton ...
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.