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Lecture
Lecture

... I=V/R = 0.298 mA What is the measurement error? About %2 error! Where does the error come from? What is the measurement error across 15K resistor? ...
pn junction diode
pn junction diode

... In the modern world no other technology permeates every nook and cranny of our existence as does electronics. The p-n junction is at the heart of this technology. Most electronics is silicon based, that is, the devices are made of silicon. Silicon wafers are subjected to special procedures which res ...
L25.ppt - University of Iowa Physics
L25.ppt - University of Iowa Physics

... bulb connected to a 120 V power line? • Solution: P = 60 W = I V = I  120 so I = 0.5 Amps (A) • What is the resistance of the bulb? • Solution: V = I R 120 V = ½ A  R so R = 240 W, or R = V/I How much current is used by a 2000 W hair dryer plugged into a 120 V power source?  P = I V  I = P / V ...
L25.ppt - University of Iowa Physics
L25.ppt - University of Iowa Physics

Block Diagrams and Steady State Errors
Block Diagrams and Steady State Errors

Electric Current and Ohm`s Law Guided Notes
Electric Current and Ohm`s Law Guided Notes

... Electric Current Current = _________________________ Symbol: ...
General - Cable Quest
General - Cable Quest

Experiment 1
Experiment 1

... Resistance is a property of a material that causes a reduction in the rate of flow of electrons. Impedance is the reduction in the rate of flow of electrons caused by the material (resistance) AND other the properties of the component involved ...
QUESTIONS lesson 4 - JUANA
QUESTIONS lesson 4 - JUANA

... If the circuit has no resistance it can produce a short circuit. In other words , the amount of electrons flowing is so high that the circuit can be burned out. ( in the case where the generator is a battery it will run down very quickly) If it has infinite resistance, the electrons cannot flow thro ...
L09 Instru Spectrofluorometery
L09 Instru Spectrofluorometery

... same line). This is important here to avoid the interference from the incident light (It). we just want to measure the emitted light. But how this design would prevent the interference of the incident light despite the fact that the light moves in all directions? Light moves in all directions from i ...
for immediate release
for immediate release

... design engineers using relays and circuit breakers (or relays and fuses) can replace those two devices with a single compact unit, plus get the benefits of emerging “smart” circuit protection technology. The new device saves space, saves time, increases reliability, and provides unprecedented protec ...
PHYSICAL SCIENCE EOCT
PHYSICAL SCIENCE EOCT

... 1.) What types of waves do NOT require a medium:____electromagnetic_______ 2.) What type of waves DO require a medium:_mechanical_________ 3.) Label the following Transverse Waves: (Insert center line) ...
scanCONTROL 2700
scanCONTROL 2700

... Connect the shield of the power supply cable to the PE protective earth conductor of the main power supply. Close unused connection plugs with the provided protective caps. Switch on the power supply (24 VDC). ...
Cap Drop Offline Supply for E-Meters
Cap Drop Offline Supply for E-Meters

... VDC is set to 48 V. The LM46000 converts this down to 3.3 V. For a line voltage range of 90 VAC to 265 VAC, this design can supply at least 50 mA to the 3.3 V load. The high step-down ratio, possible with the LM46000, allows the 50 mA load to appear as less as 5 mA load to the DC/DC. This permits a ...
V-2
V-2

... • If there are more R, C, L elements in an AC circuit we can always, in principle, build appropriate differential or integral equations and solve them. The only problem is that these equations would be very complicated even in very simple situations. • There are, fortunately, several ways how to get ...
Electronic Instrumentation
Electronic Instrumentation

... Resistance is a property of a material that causes a reduction in the rate of flow of electrons. Impedance is the reduction in the rate of flow of electrons caused by the material (resistance) AND other the properties of the component involved ...
L25
L25

... bulb connected to a 120 V power line? • Solution: P = 60 W = I V = I  120 so I = 0.5 Amps (A) • What is the resistance of the bulb? • Solution: V = I R 120 V = ½ A  R so R = 240 W, or R = V/I How much current is used by a 2000 W hair dryer plugged into a 120 V power source?  P = I V  I = P / V ...
Circuit electricity
Circuit electricity

RHRD440, RHRD460, RHRD440S, RHRD460S 4A, 400V
RHRD440, RHRD460, RHRD440S, RHRD460S 4A, 400V

... Avalanche Energy (See Figures 10 and 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EAVL Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TSTG, TJ Maximum Lead Temperature for Soldering (Leads at 0 ...
AL5801 Description Features Pin Assignments Applications Typical
AL5801 Description Features Pin Assignments Applications Typical

... Figure 13 Typical Application Circuit for Linear Mode Current Sink LED Driver The AL5801 is designed for driving high brightness LEDs with typical LED current up to 350mA. It provides a more cost effective way for driving low current LEDs when compared against more complex switching regulator soluti ...
modular dc power supply model 62000b series
modular dc power supply model 62000b series

... Type C - Control without CSU or PC : User can only control via remote on/off signal for paralleled operation. Note 1 : User can NOT adjust the output voltage when parallel the output. Note 2 : The output voltage will fixed in factory default voltage. Note 3 : If need to adjust the output voltage, pl ...
October 2007 - Measure Microamps to Amps or
October 2007 - Measure Microamps to Amps or

... dynamic range for accurate measurement. If the typical load current must be measured with 1% accuracy, then 80dB of dynamic range is required. A battery system that calculates total battery charge over a range of load currents from 1mA to 100A would require 100dB or more! For many current monitoring ...
1 - Maths and Science at Al Siraat
1 - Maths and Science at Al Siraat

Passive circuit elements
Passive circuit elements

Course Structure
Course Structure

... M-SAMC educational resources are in no way meant to be a substitute for occupational safety and health standards. No guarantee is made to resource thoroughness, statutory or regulatory compliance, and related media may depict situations that are not in compliance with OSHA and other safety requireme ...
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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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