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MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers General Description
MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers General Description

AAT4280A 数据资料DataSheet下载
AAT4280A 数据资料DataSheet下载

... family. The AAT4280A is a P-channel MOSFET power switch designed for high-side load switching applications. The device has a typical RDS(ON) of 80mW, allowing increased load switch power handling capacity. The device is available in three different versions with flexible turn-on and turn-off charact ...
Dual, Low-Noise Variable-Gain Amplifier with Preamp (Rev. D)
Dual, Low-Noise Variable-Gain Amplifier with Preamp (Rev. D)

e Shar k®100 & 100T Electro Industries/GaugeTech Installation & Operation Manual
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Heinemann Hydraulic-Magnetic Circuit Breakers
Heinemann Hydraulic-Magnetic Circuit Breakers

... an automatic protective device called a circuit breaker, and in 1930, Heinemann produced the first magnetic circuit breaker. Until then, circuit breakers depended on the heat caused by an electrical overload to trip the circuit open. Too often, ...
LTM4601A/LTM4601A-1 - 12A DC/DC uModules with PLL, Output Tracking and Margining
LTM4601A/LTM4601A-1 - 12A DC/DC uModules with PLL, Output Tracking and Margining

... PLLIN (Pin A8): External Clock Synchronization Input to the Phase Detector. This pin is internally terminated to SGND with a 50k resistor. Apply a clock with high level above 2V and below INTVCC. See the Applications Information section. TRACK/SS (Pin A9): Output Voltage Tracking and SoftStart Pin. ...
3.3 volt logic characteristics and applications
3.3 volt logic characteristics and applications

... ouput, avoiding ground bounce and reducing transmission line noise. Because a FET is used, the output can be pulled all the way to GND, whereas a similar configuration with an NPN (as found in many competing technologies) would only pull-down to about 200mV, reducing noise immunity. The N-Channel pu ...
ADF5355 - Analog Devices
ADF5355 - Analog Devices

... frequency (RF) output. A series of frequency dividers at another frequency output permits operation from 54 MHz to 6800 MHz. The ADF5355 has an integrated VCO with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 1 ...
HYPERTHERM SENSOR™ PHC PLASMA HEIGHT CONTROL
HYPERTHERM SENSOR™ PHC PLASMA HEIGHT CONTROL

... 3) Suitable for use on a circuit capable of delivering not more than 5000rms symmetrical amperes,  230 volts maximum.  4) Integral solid state short circuit protection does not provide branch circuit protection.  Branch  circuit protection provided by integral LISTED branch circuit protection fuse.  ...
Service Manual - SUNNY BOY 3000TL / 3600TL / 4000TL
Service Manual - SUNNY BOY 3000TL / 3600TL / 4000TL

... Destruction of the measuring device due to overvoltage • Only use measuring devices with a DC input voltage range of 1,000 V or higher. Procedure: 1. Disconnect the circuit breaker and secure it against reconnection. 2. If an additional DC load-break switch is available, switch off the DC load-break ...
this PDF file - Radio Electronics, Computer Science, Control
this PDF file - Radio Electronics, Computer Science, Control

Aalborg Universitet Synthesis of Variable Harmonic Impedance in Inverter-Interfaced Distributed
Aalborg Universitet Synthesis of Variable Harmonic Impedance in Inverter-Interfaced Distributed

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3M™ Termination Kits QT-III 7640-S, 7650-S and 7660

... a skirted insulator, high-dielectric constant (High-K) stress control tube, conformable High-K stress controlling compound and built-in environmental top sealing compound. The two-piece inverted skirted termination assemblies consist of a non-skirted (tubular) insulator, high-dielectric constant (Hi ...
EASA Standard AR100-1010 - Electrical Apparatus Service
EASA Standard AR100-1010 - Electrical Apparatus Service

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Loop and Nodal Analysis and Op Amps

... "W" is the channel width "L" is the channel length "vto" is the threshold voltage and output "ids" is a vector of the same size of "vds" containing the drain-source current values. ...
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Starting Headlight Test - CTE-Auto

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sound technician

... Not all of these properties are independent; one can relate some. Period is inversely related to the frequency. This means if the frequency is high, the period will be low. This is understandable because frequency is number of times a wave completes a set of up and down movements (or a set of crests ...
Chapter 4 AlAs/GaAs Double Barrier Resonant Tunneling Diodes
Chapter 4 AlAs/GaAs Double Barrier Resonant Tunneling Diodes

... The resonant peaks correspond to the energy levels of the quasi-bound states in the quantum well when at thermal equilibrium or when the device is not under a voltage bias. When a voltage bias is applied to the right side contact of the DBRTD shown in Figure 4.3, the conduction band of the right sid ...
TURCK IM Series Interface Modules Application Guide
TURCK IM Series Interface Modules Application Guide

... Examples of common applications are provided along with simple connection diagrams that allow any user to easily and safely install these devices. Typical and specific functions for each individual device are highlighted in the "Features" portion of the specification pages. A handy pin-out reference ...
Bourns® FLAT® Technology Gas Discharge Tube (GDT) Surge
Bourns® FLAT® Technology Gas Discharge Tube (GDT) Surge

balun basics primer
balun basics primer

... impedance between the signals and ground. A related value is the turns ratio, which for a flux coupled balun transformer is the ratio of primary windings to secondary windings. The impedance ratio is the square of the turns ratio (i.e. a 1:2 turn ratio gives a 1:4 impedance ratio). A higher output i ...
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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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