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CMA 0204 HF Pulse Load Carbon Film MINI
CMA 0204 HF Pulse Load Carbon Film MINI

... the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (ii ...
AD9221 数据手册DataSheet下载
AD9221 数据手册DataSheet下载

... CMOS process and a novel architecture to achieve the resolution and speed of existing hybrid and monolithic implementations at a fraction of the power consumption and cost. Each device is a complete, monolithic ADC with an on-chip, high performance, low noise sample-and-hold amplifier and programmab ...
SN74LVC2G74-EP 数据资料 dataSheet 下载
SN74LVC2G74-EP 数据资料 dataSheet 下载

... requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not related directly to the rise time of the clock pulse. Following the hold-time interval, data at the D input can be changed without affecting the levels at t ...
Pulse Load Handling for Fixed Linear Resistors
Pulse Load Handling for Fixed Linear Resistors

... to the pulse duration, so the maximum permitted peak power reaches a constant value for short duration times. The capability of similar resistor styles to withstand single energy pulses is dependant on the resistive technology. For extreme pulse load conditions Vishay carbon film, metal glaze, and w ...
CSE 477. VLSI Systems Design
CSE 477. VLSI Systems Design

... When Vout = - VDD (Ca / (Ca + CL )) the drop in Vout is large enough to be below the switching threshold of the gate it drives causing a malfunction. ...
ACS 200 Frequency Converters for Speed Control of 0.55 to 4.0 kW
ACS 200 Frequency Converters for Speed Control of 0.55 to 4.0 kW

... Note that the Main Circuit Card of the ACS 200 is at mains supply voltage potential. Warning! The d.c. bus capacitors on the Main Circuit Card contain dangerous d.c. voltages (1.35 ∗ U240, 1.3 ∗ U480). After disconnecting the supply, wait at least five minutes and ensure that the display readout on ...
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... The gap between the capacitor plates represents an open circuit and charge does not pass from the positive plate to the negative plate.  Charge is transferred from one plate to the other plate through the resistor, switch, and battery until the capacitor is fully charged.  The value of the maximum ...
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boundary scan functions - McGraw Hill Higher Education

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... Resistance: Just what is Resistance? Take your hands and rub them together very fast. Your hands should feel warm. The friction between your hands converts your effort into heat. Resistance is the electrical friction between an electric current and the material it is flowing through; it is the loss ...
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LAE-2012-008-T - MIT Laboratory for Aviation and the Environment

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... MR and VSS (ground), as shown in Figure 3. The Manual Reset has an internal 20 kΩ pull-up resistor and a debounce circuit, which solves the problem of any noise generated by switching the push-button. The timing diagram represented in Figure 4 shows how the Manual Reset input functions. When MR is d ...
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... In order to drive a differential input signal, a dual op-amp is used in a modified buffer configuration. It is critical that the op-amp has low power consumption such as OPA333, OPA336, OPA313 etc. The typical operating current for these is below 100 uA. A simple buffer may be unstable as this has t ...
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... Power Supply Input. The VDD range for the AD7273/AD7274 is from 2.35 V to 3.6 V. Data Out. Logic output. The conversion result from the AD7273/AD7274 is provided on this output as a serial data stream. The bits are clocked out on the falling edge of the SCLK input. The data stream from the AD7274 co ...
LT1995 - 30MHz, 1000V/µs Gain Selectable Amplifier
LT1995 - 30MHz, 1000V/µs Gain Selectable Amplifier

... Note 6: Thermal resistance (θJA) varies with the amount of PC board metal connected to the leads. The specified values are for short traces connected to the leads. If desired, the thermal resistance can be reduced slightly in the MS package to about 130°C/W by connecting the used leads to a larger m ...
User’s Manual Models UD310/UD320/UD350
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... 2) For thermocouple input, use shielded compensating lead wires. For RTD input, use shielded wires which have low resistance and no resistance difference between the 3 wires. See the table given later for the specifications of the cables and terminals and the recommended products. 3) The alarm outpu ...
Diapositiva 1 - WikiService.at
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BDTIC CoolMOS™ Primary Side MOSFET Selection for LLC Topology
BDTIC CoolMOS™ Primary Side MOSFET Selection for LLC Topology

... converter. For identifying the required dead time, two important limitations must be considered. One of them depends on the power MOSFET’s minimum required dead time, which can be obtained from the datasheet easily, by considering MOSFET parameters such as body diode reverse recovery time, turn-on a ...
Nanosecond repetitively pulsed discharges in N2–O2 mixtures
Nanosecond repetitively pulsed discharges in N2–O2 mixtures

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... DANLERS 10 metre PIR occupancy switch modules can be mounted into a luminaire via a mounting bezel. (GREUW BEZEL) They incorporate a passive infra-red quad sensor to detect movement of a warm body within their detection zone and a photocell to monitor the ambient light level. On detecting movement, ...
Joslyn Hi-Voltage® Capacitor Switches
Joslyn Hi-Voltage® Capacitor Switches

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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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