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Objective
Objective

Circuit - BAschools.org
Circuit - BAschools.org

... Current in a circuit is similar to water running through a hose. However, there is one difference between water and electrical flow. If you cut the hose, the water continues to flow. However if you cut a wire, the charge stops flowing. Batteries have connections at both ends so that charge can flow ...
LM2901EP Low Power Low Offset Voltage
LM2901EP Low Power Low Offset Voltage

... For operating at high temperatures, the LM2901EP must be derated based on a 125°C maximum junction temperature and a thermal resistance of 95°C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The low bias dissipation and the “ON-OFF” characterist ...
Objective bits
Objective bits

... 4). Triggering of the signal in CRO is done to get true representation of input signal 5). The type of electron emission that takes place in a CRT is thermionic emission 6). Scale markings provided on the front side of the CRT screen are called graticules 7). The control knob level in a CRO is used ...
AD626AR
AD626AR

... The 200 kΩ input impedance of the AD626 requires that the source resistance driving this amplifier be low in value (<1 kΩ)— this is necessary to minimize gain error. Also, any mismatch between the total source resistance at each input will affect gain accuracy and common-mode rejection (CMR). For ex ...
ECH8420 DATA SHEET General-Purpose Switching Device Applications
ECH8420 DATA SHEET General-Purpose Switching Device Applications

... Note on usage : Since the ECH8420 is a MOSFET product, please avoid using this device in the vicinity of highly charged objects. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equ ...
Status Indication Reference Design With LED
Status Indication Reference Design With LED

SP Valves and Coil Operating Parameters
SP Valves and Coil Operating Parameters

User review of the IC-703+
User review of the IC-703+

The Influence of Diodes and Transistors Made of Silicon
The Influence of Diodes and Transistors Made of Silicon

Textbook Web: www.mwftr.com/book.html
Textbook Web: www.mwftr.com/book.html

... The one we actually have does not have the control pad: it has only the Armatron body and the 7-wire ribbon cable. The focus in the chapter is first to know how to operate the Armatron, and how we develop our own relay board, which in turn can be controlled by the output port of 16F877. 1. Motion Co ...
MOSFETS SOT-323 Plastic-Encapsulate  2SK3018
MOSFETS SOT-323 Plastic-Encapsulate 2SK3018

... JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD ...
CA3140, CA3140A
CA3140, CA3140A

Bip Transistor 15V 0.7A VCE(sat);35mV max. PNP Single CP
Bip Transistor 15V 0.7A VCE(sat);35mV max. PNP Single CP

... "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportati ...
Subcircuits
Subcircuits

... In the improved Wilson current mirror: What is rout? What is Vmin? The resistance from D2 to GND is 1/gm which is small. Why not connect G2 to a constant bias to increase that impedance? ...
electrical current
electrical current

... AC stands for alternating current and means that the flow of electrons can move in both directions. The electrical circuits in our homes are AC and they alternate, or move back and forth, about fifty times every second. This type of current is produced by generators similar to those in power station ...
PPT - LSU Physics & Astronomy
PPT - LSU Physics & Astronomy

... Resistivity depends on temperature:  = 0(1+a (T-T0) ) ...
PHS Future Plan - ParksideHS
PHS Future Plan - ParksideHS

... Switch Mode Power Supplies Digital Signal Processing ...
Shure SCM800/SCM800E User Guide (English)
Shure SCM800/SCM800E User Guide (English)

... is defined as the frequency where the signal has dropped 3 dB relative to the flat, or bandpass, region. Below the cutoff point, the filter exhibits increasingly more attenuation as the frequency diminishes. The rate at which this attenuation occurs is defined in decibels per octave (dB/oct). The SC ...
INA125 数据资料 dataSheet 下载
INA125 数据资料 dataSheet 下载

... SPECIFICATIONS: VS = +5V At TA = +25°C, VS = +5V, IA common at VS /2, VREF common = VS /2, VCM = VS/2, and RL = 10kΩ to VS/2, unless otherwise noted. INA125P, U ...
EW lab manual - WordPress.com
EW lab manual - WordPress.com

... requirements, paper and film capacitors are used. They are constructed using a rolled-foil technique. Once rolled, the capacitor may be dipped into a plastic insulating material. Capacitors of this type used for electronic circuits are rated at generally less than 1 mfd. However, they can also be de ...
AP3595 Description Pin Assignments
AP3595 Description Pin Assignments

... capable of delivering up to 60A output current with embedded bootstrapped drivers that support 12V+12V driver capability. The built-in bootstrap diode simplifies the circuit design and reduces external part count and PCB space. The output voltage is precisely regulated to the reference input that is ...
IPC Final Exam Study Sheet
IPC Final Exam Study Sheet

... Energy --------------------------------------------------------33. potential energy 34. kinetic energy 35. Give four examples of both PE and KE. ...
1.8-V MICROPOWER CMOS OPERATIONAL AMPLIFIER ZERO-DRIFT SERIES OPA2333-HT FEATURES
1.8-V MICROPOWER CMOS OPERATIONAL AMPLIFIER ZERO-DRIFT SERIES OPA2333-HT FEATURES

... auto-calibration technique to provide low offset voltage and very low drift over time and temperature. For lowest offset voltage and precision performance, circuit layout and mechanical conditions should be optimized. Avoid temperature gradients that create thermoelectric (Seebeck) effects in the th ...
TEM Wave Electrodynamics Feb 18 2012
TEM Wave Electrodynamics Feb 18 2012

< 1 ... 1928 1929 1930 1931 1932 1933 1934 1935 1936 ... 2982 >

Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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