Stellar intensity interferometry: Experimental
... Future IACT arrays consisting of several tens of individual reflectors could in principle allow up to a few thousand different baselines. Detectors may be separated by as much as a kilometer, over which distance coherence must be maintained if one is to combine pulses of 3 − 5 ns FWHM at a centrally l ...
... Future IACT arrays consisting of several tens of individual reflectors could in principle allow up to a few thousand different baselines. Detectors may be separated by as much as a kilometer, over which distance coherence must be maintained if one is to combine pulses of 3 − 5 ns FWHM at a centrally l ...
cop SMATV def FR int
... available (item MBX0001 see page 69) that leave a space of 19mm between the amplifier and the wall, allowing room for cables or the amplifier to be mounted in different positions. Packaging 1 pc. • Gain and slope can be adjusted • Passive or active return path, switchable by the installer ...
... available (item MBX0001 see page 69) that leave a space of 19mm between the amplifier and the wall, allowing room for cables or the amplifier to be mounted in different positions. Packaging 1 pc. • Gain and slope can be adjusted • Passive or active return path, switchable by the installer ...
MAX5930/MAX5931 Low-Voltage, Triple, Hot-Swap Controllers/ Power Sequencers/Voltage Trackers General Description
... controllers provide complete protection for multisupply systems. They allow the safe insertion and removal of circuit cards into live backplanes. These devices hot swap multiple supplies ranging from +1V to +13.2V, provided one supply is at or above +2.7V and only one supply is above 11V. The input ...
... controllers provide complete protection for multisupply systems. They allow the safe insertion and removal of circuit cards into live backplanes. These devices hot swap multiple supplies ranging from +1V to +13.2V, provided one supply is at or above +2.7V and only one supply is above 11V. The input ...
A Brain-Machine Interface using Dry-Contact, Low
... recorded by one of the electrodes is shown for both blocks of time. With the eyes closed there is a marked increase in power around 9 Hertz. This increase in what is called the alpha band is typical when eyes are closed. A normalized spectrogram of the whole 25 seconds is also shown in Fig. 5. The d ...
... recorded by one of the electrodes is shown for both blocks of time. With the eyes closed there is a marked increase in power around 9 Hertz. This increase in what is called the alpha band is typical when eyes are closed. A normalized spectrogram of the whole 25 seconds is also shown in Fig. 5. The d ...
TFCS GCSE Additional Unit P5 Higher
... In the model above, the charges in the circuit are shown moving away from the positive terminal of the battery, through the wires and other components, and back to the negative terminal of the battery. This assumes that the moving charges are positive. In fact there is no simple way of telling wheth ...
... In the model above, the charges in the circuit are shown moving away from the positive terminal of the battery, through the wires and other components, and back to the negative terminal of the battery. This assumes that the moving charges are positive. In fact there is no simple way of telling wheth ...
HR2000 - Monolithic Power System
... and the sweeping frequency is controlled to limit the preheat current. The preheat time and ignition time can be smartly set up for types of lamps and applications. Sufficient protection functions are provided for different fault modes such as over voltage, over current, over temperature, capacitive ...
... and the sweeping frequency is controlled to limit the preheat current. The preheat time and ignition time can be smartly set up for types of lamps and applications. Sufficient protection functions are provided for different fault modes such as over voltage, over current, over temperature, capacitive ...
Specification Number
... C. All transformers shall have a maximum temperature rise of [150° C] [115° C] [80° C] above a 40° C maximum ambient. D. Primary taps shall be full capacity, with a minimum of two 2-1/2% above and below rated voltage. E. kVA sizes, voltages, and taps shall be as shown on the electrical plans or on ...
... C. All transformers shall have a maximum temperature rise of [150° C] [115° C] [80° C] above a 40° C maximum ambient. D. Primary taps shall be full capacity, with a minimum of two 2-1/2% above and below rated voltage. E. kVA sizes, voltages, and taps shall be as shown on the electrical plans or on ...
MPXV5050VC6T1 High Temperature Accuracy Integrated Silicon
... implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Freescale Semiconductor reserves the right to make changes witho ...
... implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Freescale Semiconductor reserves the right to make changes witho ...
MAX3558
... to AGC_ voltage of 0.5V and maximum gain corresponds to AGC_ voltage of 3V. AGC inputs can be driven from a demodulator’s AGC output, which normally controls a tuner’s RF AGC, or from the MAX3558’s onchip power detector. Should an overload condition occur, the closed-loop AGC circuitry continues to ...
... to AGC_ voltage of 0.5V and maximum gain corresponds to AGC_ voltage of 3V. AGC inputs can be driven from a demodulator’s AGC output, which normally controls a tuner’s RF AGC, or from the MAX3558’s onchip power detector. Should an overload condition occur, the closed-loop AGC circuitry continues to ...
7 Measurement of High Voltages and Currents In industrial testing
... since E=V/d (d being the gap separation between the electrodes). The proportionality constant can be determined from the dimensions of the spheroid or experimentally. The uniform electric field is produced by employing two electrodes with a Bruce profile for a spacing of about 50 cm. One of the ele ...
... since E=V/d (d being the gap separation between the electrodes). The proportionality constant can be determined from the dimensions of the spheroid or experimentally. The uniform electric field is produced by employing two electrodes with a Bruce profile for a spacing of about 50 cm. One of the ele ...
A Draft Standard Glossary of Power Quality - Working Group
... In addition to the standard definitions which are to be utilized by other documents, this standard contains detailed descriptions of the terminology which includes graphical information, as well as typical occurrence situations. This additional information is to facilitate the introduction to the el ...
... In addition to the standard definitions which are to be utilized by other documents, this standard contains detailed descriptions of the terminology which includes graphical information, as well as typical occurrence situations. This additional information is to facilitate the introduction to the el ...
Source Transformations
... by the 8 A CCS First we find the voltage drop across the 8 A CCS, from the top essential node toward the 10 Ω resistor, named v8A The voltage drop across the 10 Ω resistor is simply 10 Ω * the current, by definition 8 A, named v10Ω That is v10Ω = 80 V ...
... by the 8 A CCS First we find the voltage drop across the 8 A CCS, from the top essential node toward the 10 Ω resistor, named v8A The voltage drop across the 10 Ω resistor is simply 10 Ω * the current, by definition 8 A, named v10Ω That is v10Ω = 80 V ...
14PE15 Single Power-Conversion AC–DC Converter with High
... analyzed and verified. Experimental results for a 400 W ac–dc converter at a constant switching frequency of 50 kHz are obtained to show the performance of the proposed converter. ...
... analyzed and verified. Experimental results for a 400 W ac–dc converter at a constant switching frequency of 50 kHz are obtained to show the performance of the proposed converter. ...
Solution-processed hybrid perovskite photodetectors with high detectivity ARTICLE Letian Dou
... that these types of materials have a very low density of defects and traps within the bandgap23. It suggests that the saturation current (J0) of the perovskite-based diodes can be very low. The absorption coefficient (e) of the hybrid perovskite reaches the order of 104 cm 1, which can be ascribed ...
... that these types of materials have a very low density of defects and traps within the bandgap23. It suggests that the saturation current (J0) of the perovskite-based diodes can be very low. The absorption coefficient (e) of the hybrid perovskite reaches the order of 104 cm 1, which can be ascribed ...
RURD460, RURD460S 4 A, 600 V, Ultrafast Diode Features
... Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PD Avalanche Energy (See Figures 9 and 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EAVL Oper ...
... Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PD Avalanche Energy (See Figures 9 and 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EAVL Oper ...
ELECTRICITY AND BASIC ELECTRICAL COMPONENTS
... This document is based on the “Learn-by-Doing”® principle because simply reading about a technical subject is not the best way to learn. After all, you don't read about putting together a jigsaw puzzle, you put the puzzle together to solve the picture! Reading about a maze may help you to move throu ...
... This document is based on the “Learn-by-Doing”® principle because simply reading about a technical subject is not the best way to learn. After all, you don't read about putting together a jigsaw puzzle, you put the puzzle together to solve the picture! Reading about a maze may help you to move throu ...
Tutorial_4_Single_Phase_Transformer
... b) Find the per-unit equivalent circuit of this transformer. c) Assume that this transformer is supplying rated load at 480V and 0.8 PF lagging. What is this transformer’s input voltage? What is its voltage regulation? d) What is the transformer’s efficiency under the conditions of part (c)? (Ans: a ...
... b) Find the per-unit equivalent circuit of this transformer. c) Assume that this transformer is supplying rated load at 480V and 0.8 PF lagging. What is this transformer’s input voltage? What is its voltage regulation? d) What is the transformer’s efficiency under the conditions of part (c)? (Ans: a ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.