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active field distributors
active field distributors

... zone 2/22. It can integrate up to 4 PA (PROFIBUS PA) or FF (FOUNDATION Fieldbus H1) field devices via shortcircuit-proof spur line connections into a fieldbus segment (line/ring) with automatic bus termination. This fieldbus segment can be connected to a single or redundant PROFIBUS DP via a PA or F ...
DSM6 Brochure - Australian Monitor
DSM6 Brochure - Australian Monitor

... SPLITTER, LINE MIXER It's a fact of audio life that a lot of equipment that has to be connected to professional audio systems isn't impedance or level compatible. ...
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... output coupling capacitors without compromising performance. ...
9900 SeriesManual 2 - wfcoelectronics.com
9900 SeriesManual 2 - wfcoelectronics.com

... a. If converter does not read within this voltage range then replace the converter. b. If converter does read within this voltage range, start adding load (light, etc..) while monitoring the voltmeter. If voltage drops below 13.4 volts DC replace the converter. c. While adding load (lights, etc..), ...
a Low Cost, Precision IC Temperature Transducer AD592*
a Low Cost, Precision IC Temperature Transducer AD592*

... The thermal environment in which the AD592 is used determines two performance traits: the effect of self-heating on accuracy and the response time of the sensor to rapid changes in temperature. In the first case, a rise in the IC junction temperature above the ambient temperature is a function of tw ...
RA07H3340M 数据资料DataSheet下载
RA07H3340M 数据资料DataSheet下载

... were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpose, they are not manufactured under a quality assurance testing protocol that is sufficient to guarantee the level of reliability typically deemed necessary f ...
Surface characterization of UV irradiated nanocrystalline
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TEMPERATURE AND FREQUENCY DEPENDENCE OF PRECISION Luka Ferković
TEMPERATURE AND FREQUENCY DEPENDENCE OF PRECISION Luka Ferković

... calculable current-to-voltage converter. The quoted results were obtained without temperature compensation. On the other hand, with the introduced temperature compensation by loading the secondary coils with compensation resistors RT, the measured „effective“ mutual inductance of transformer is MTm, ...


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MAX1489E ±15kV ESD-Protected, Quad, Low-Power RS-232 Line Receiver _______________General Description
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... The major difference between tests done using the Human Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2. Because series resistance is lower in the IEC1000-4-2 ESD test model (Figure 3a), the ESD withstand voltage measured to this standard is generally lower than that measured using ...
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ASSIGNMENT MEELC303 1 A 1500 nF capacitor is connected in

... 2 An e.m.f. of 2 kV is induced in a coil when a current of 5A collapses uniformly to zero in 10 ms. Determine the inductance of the coil. [4 H] 3 An average e.m.f. of 60V is induced in a coil of inductance 160mH when a current of 7.5A is reversed. alculate the time taken for the current to reverse. ...
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Discharge in the saline solutions in a vicinity of the...

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ADUM2210 英文数据手册DataSheet下载

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AP7313
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... to cool down. When the junction temperature reduces to approximately +125°C the output circuitry is enabled again. Depending on power dissipation, thermal resistance, and ambient temperature, the thermal protection circuit may cycle on and off. This cycling limits the heat dissipation of the regulat ...
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Different Types of Starters for Induction Motor

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Large-signal feedback control of a bidirectional coupled

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UCC28220-Q1 数据资料 dataSheet 下载

... Until VDD reaches its UVLO threshold, the device remains in low-power mode, drawing approximately 150 µA of current and forcing pins SS, CS1, CS2, OUT1, and OUT2 to logic 0 states. If VDD falls below 8 V after reaching the turn-on threshold, the device returns to the low-power state. The UVLO turn-o ...
LM2940QML 1A Low Dropout Regulator (Rev. B)
LM2940QML 1A Low Dropout Regulator (Rev. B)

... It is important to note that for most capacitors, ESR is specified only at room temperature. However, the designer must ensure that the ESR will stay inside the limits shown over the entire operating temperature range for the design. For aluminum electrolytic capacitors, ESR will increase by about 3 ...
Massachusetts Institute of Technology
Massachusetts Institute of Technology

... Often it becomes desirable to carry out a linearized analysis of machine operation to, for example, examine the damping of the swing mode at a particular operating point. What is done, then, is to assume a steady state operating point and examine the dynamics for deviations from that operating point ...
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A capacitive power supply is the best solution for a

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Static Line Ultramicrotomy Accessories Static Line Ionizer

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AC Power Distribution 6-9-10

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General purpose CMOS timer

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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.
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