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Fundamental Relay-Operating Principles
Fundamental Relay-Operating Principles

... Relays of this group are used mostly when "directional" operation is not required. More will be said later about "directional control" of relays; suffice it to say here that plunger or attracted-armature relays do not lend themselves to directional control nearly as well as induction-type relays, wh ...
Leakage Current in Sub-Micrometer CMOS Gates - Inf
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אלקטרוניקה
אלקטרוניקה

... status of the equipment in which the integrated circuits will be used is unknown to the manufacturer, having any of the following: a. More than 1,500 terminals; b. A typical "basic gate propagation delay time" of less than 0.02 ns; or c. An operating frequency exceeding 3 GHz; 11. Digital integrated ...
BER Scans at Low Optical Power
BER Scans at Low Optical Power

... Not surprisingly, there is a clear improvement in going from a PIN bias of 0V to 2V. There is a slight improvement in going from 2V to 4V but after that there is no clear evidence of any further improvement. In order to summarise the data in one figure the results of the BER scans versus RX DAC valu ...
Ballast Guide - Vode Lighting
Ballast Guide - Vode Lighting

... This ballast is not compatible with ballast in Vode jbox (JR & JS). Compatible with most 0-10v DC control systems. Always check with Vode and controls manufacturer to ensure compatibility with this ballast. ...
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part 1 general - Rockwell Automation

... for this information, the user of, and those responsible for applying this information, are responsible for ensuring the acceptability of each application and appropriate use of the guidelines. In no event will Rockwell Automation be liable for misuse, misapplication or reliance on these guidelines ...
Optimum DC-Link Solution in HVDC Wind Park Actively
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... wind parks can be built at long distances from the existing grid and therefore require a power transmission with low losses. This transmission is mainly done using HVAC cables. The main drawback with this method is the significant losses in the cables due to their high capacitance, limiting the tran ...
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Design and Analysis of Comparators using 180nm CMOS Technology

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DC-AC Inverters - Samlex America

... Although your power inverter has the capacity to provide power output (excess current) equal to approximately two times its rated wattage capacity for a very brief period, it is designed to operate equipment and appliances with start up load wattage ratings no higher than its own maximum continuous ...
Thermal Cutoffs - School of Information Technology and Electrical
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... Install the dummy cutoff in the electrical circuit to be opened in the event of a fault condition. Position it in the area that has been selected to be protected within the product based on prior determinations of the maximum permissible temperatures to be allowed. The dummy cutoff should be install ...
BST52 Features Mechanical Data
BST52 Features Mechanical Data

... Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically n ...
AD7794/AD7795 6-Channel, Low Noise, Low Power, 24-/16-Bit ∑
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... a pulsed test current and do not provide continuous monitoring. For example, during each 2.2 second pulse cycle of a leading “constant” resistive monitor, electrical current is pulsed for only 0.2 seconds followed by an unmonitored interval of 2 seconds. This leaves the user / wrist strap unmonitore ...
ZLLS2000 Features Mechanical Data
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... marked "A" will become negative (-) polarity and the end marked "B" will become positive (+). Therefore, the polarity of the ends of the wire has changed. After a second one-half revolution, the bar magnet will be back at the starting point where "A" is positive (+) and "B" negative (-). Consequentl ...
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... operations, characteristic registration marks or design elements have to be detected. At OMRON we closely work together with leading packaging machine makers to evaluate the requirements for sensors from commonly used packaging material as well as most critical designs or materials. In addition the ...
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... replace free of charge any defects in material or workmanship. The following conditions apply: • Warranty is calculated from manufacture date if not registered within 30 days of purchase. ...
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Si5345/44/42 - Silicon Labs
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... These jitter attenuating clock multipliers combine fourth-generation DSPLL and MultiSynth™ technologies to enable any-frequency clock generation and jitter attenuation for applications requiring the highest level of jitter performance. These devices are programmable via a serial interface with in-ci ...
AD5602: 中文产品数据手册下载
AD5602: 中文产品数据手册下载

... Serial Clock Line. This is used in conjunction with the SDA line to clock data into or out of the 16-bit input register. Serial Data Line. This is used in conjunction with the SCL line to clock data into or out of the 16-bit input register. It is a bidirectional, open-drain data line that should be ...
TPA2032D1 数据资料 dataSheet 下载
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... The TPA2032D1 (2V/V gain), TPA2033D1 (3V/V gain), and TPA2034D1 (4V/V gain) are 2.75-W high efficiency filter-free class-D audio power amplifiers, each in an approximately 1.5-mm × 1.5-mm wafer chip scale package (WCSP) that requires only one external component. The pinout is the same as the TPA2010 ...
FINAL
FINAL

... ID: 12-20789-1 2. HOSSAIN,MD.SAJJAD ...
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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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