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data sheet
... single-pulse loading. More usually, the resistor must withstand a continuous train of pulses of repetition time ‘t p ’ during which only a small resistance change is acceptable. This resistance change (∆R/R) is equal to the change permissible under continuous load conditions. The continuous pulse tr ...
... single-pulse loading. More usually, the resistor must withstand a continuous train of pulses of repetition time ‘t p ’ during which only a small resistance change is acceptable. This resistance change (∆R/R) is equal to the change permissible under continuous load conditions. The continuous pulse tr ...
Episode 118 - Teaching Advanced Physics
... The effect of the load on output With strong groups you might discuss the effect of loading a potential divider on its output voltage. The ideas to get across are: Connecting a load across R1 reduces the output voltage. This is because the effective resistance in the lower arm of the potential divid ...
... The effect of the load on output With strong groups you might discuss the effect of loading a potential divider on its output voltage. The ideas to get across are: Connecting a load across R1 reduces the output voltage. This is because the effective resistance in the lower arm of the potential divid ...
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... design. If the lowest RSSI voltage is 500mV or higher, it means the receiver is in regenerative mode. In that case, the receiver sensitivity will be worse than expected. 7. Supply bypass and shielding: All of the inductors, the quad tank, and their shield must be grounded. A 10-15µF or higher value ...
... design. If the lowest RSSI voltage is 500mV or higher, it means the receiver is in regenerative mode. In that case, the receiver sensitivity will be worse than expected. 7. Supply bypass and shielding: All of the inductors, the quad tank, and their shield must be grounded. A 10-15µF or higher value ...
2 Faults, types and effects 2.1 The development of simple distribution systems
... complexity of the system the calculations could also be too much involved. Accurate fault current calculations are normally carried out using an analysis method called symmetrical components. This method is used by design engineers and practicing protection engineers, as it involves the use of highe ...
... complexity of the system the calculations could also be too much involved. Accurate fault current calculations are normally carried out using an analysis method called symmetrical components. This method is used by design engineers and practicing protection engineers, as it involves the use of highe ...
Zobel network
![](https://en.wikipedia.org/wiki/Special:FilePath/SB_test_room_1959.jpg?width=300)
For the wave filter invented by Zobel and sometimes named after him see m-derived filters.Zobel networks are a type of filter section based on the image-impedance design principle. They are named after Otto Zobel of Bell Labs, who published a much-referenced paper on image filters in 1923. The distinguishing feature of Zobel networks is that the input impedance is fixed in the design independently of the transfer function. This characteristic is achieved at the expense of a much higher component count compared to other types of filter sections. The impedance would normally be specified to be constant and purely resistive. For this reason, they are also known as constant resistance networks. However, any impedance achievable with discrete components is possible.Zobel networks were formerly widely used in telecommunications to flatten and widen the frequency response of copper land lines, producing a higher-quality line from one originally intended for ordinary telephone use. However, as analogue technology has given way to digital, they are now little used.When used to cancel out the reactive portion of loudspeaker impedance, the design is sometimes called a Boucherot cell. In this case, only half the network is implemented as fixed components, the other half being the real and imaginary components of the loudspeaker impedance. This network is more akin to the power factor correction circuits used in electrical power distribution, hence the association with Boucherot's name.A common circuit form of Zobel networks is in the form of a bridged T. This term is often used to mean a Zobel network, sometimes incorrectly when the circuit implementation is, in fact, something other than a bridged T.Parts of this article or section rely on the reader's knowledge of the complex impedance representation of capacitors and inductors and on knowledge of the frequency domain representation of signals.↑