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Profile Documents Logout
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design document for
design document for

... Use a +5V power supply. With your 1:1 transformer, you will not get 120V out, which is a good thing since there are safety concerns. Shoot for a small AC output -- less than 5V peak to peak is acceptable -and small output power. This should not be a problem given the transistors and transformers you ...
1N456A Small Signal Diode
1N456A Small Signal Diode

... support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when ...
Frequently Asked Questions for MiCS Gas Sensors
Frequently Asked Questions for MiCS Gas Sensors

... Long-term tests have shown that at 40 mW, no drift is measurable over 6000 hours. At 80 mW, the heater resistance can rise up to 30%. By powering the sensor with an appropriate series resistance on the heater, this resistance does not impact the sensor power by more than 2% over the same period, whi ...
DS96172/DS96174 RS-485/RS-422 Quad
DS96172/DS96174 RS-485/RS-422 Quad

... Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been de ...
The Bandgap Reference [A Circuit for All Seasons]
The Bandgap Reference [A Circuit for All Seasons]

Brochure - Viatronics
Brochure - Viatronics

... The ViaRadarTM is designed for maximum flexibility and ease of use. Small size and extremely low current consumption are perfect for OEM applications. The ViaRadarTM includes software that allows the user to quickly program the unit in multiple configurations. Simple apply power and the Via-Radar wi ...
Critical Design Review
Critical Design Review

...  Communicate vehicle vitals to the on-board computer  Control indicator LEDs on the vehicle  Receiving the RC PWM signals from a remote controller  Receiving thrust percentage values from on-board ...
Chapter 17
Chapter 17

... range of voltages The relationship between current and voltage is linear The slope is related to the resistance ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... Sensors (Light, Temperature, pH Value, Humidity): Sensor Sense the different physical parameters like light, pH value of soil, temperature and humidity and converts these sense data into electrical signals (either voltage or current) Signal Array: It is collection of various sensors basically it too ...
Back
Back

... a. Charges that leave the positive terminal of the battery Come back through the negative terminal b. Charges are lost as they come back into the battery c. Charges are lost as they enter the light source d. Charges are created inside the battery ...
Potential difference - School
Potential difference - School

... electrons which are free to move and carry the electric current around the circuit. The electrons moving around the circuit collide with the ions. This is called resistance. Components with high resistance (e.g. filament bulbs) often get hot. This is because when the electrons collide with the ions ...
3. Term 3 Test Questions
3. Term 3 Test Questions

... (ii) When a switch in a circuit is closed, a voltmeter connected across a battery reads the emf of the battery. (iii) Voltmeters connected across equal resistors which are in parallel, will give the ...
07 Circuits in a Series Examples
07 Circuits in a Series Examples

Simple turn-off description of Trench- Field-stop IGBT
Simple turn-off description of Trench- Field-stop IGBT

... presented in Fig. 4 with reference to on-time of the IGBT. A further stored charge influence on the switching behavior can be shown by variation of the gate turn-off resistance. Fig. 5 illustrates the turn-off under different gate resistors. For gate resistors ranging from 1 to 30 Ohm, the dV/dt of ...
Ohm`s Law
Ohm`s Law

... Semiconductors, especially the junctions between two different types of materials, can have nonohmic behavior, which is the basis for the manufacture of diodes. A diode will behave somewhat like a switch which allows current to flow in one direction, but not in the opposite direction. In this part o ...
PMC-12V100W1AA Datasheet
PMC-12V100W1AA Datasheet

... The device is not recommended to be placed on low thermal conductive surface, for example, plastics. Note that the enclosure of the device can become very hot depending on the ambient temperature and load of the power supply. Do not touch the device while it is in operation or immediately after powe ...
Resistance of a wire - The Thomas Cowley High School
Resistance of a wire - The Thomas Cowley High School

... Different resistance values change the current 8. As the Voltage increases the current increases ...
A Distributed Pressure Sensing System to Prevent Bowel Perforations
A Distributed Pressure Sensing System to Prevent Bowel Perforations

Color Light Mixer for Every Student
Color Light Mixer for Every Student

... Somebody may ask now “But you can also buy a yellow LED. Can we make the color white just by using the yellow and the blue LED?” Yes, we can. Prepare the yellow LED as described before and fix it into the ball together with the blue LED. After some fine adjustment of the currents you should get the ...
Current and Resistance
Current and Resistance

DC1384 - LTC2452CDDB Evaluation Kit Quick Start Guide
DC1384 - LTC2452CDDB Evaluation Kit Quick Start Guide

... 16 bit high performance differential ∆Σ analog-todigital converter (ADC) with an SPI interface. The input is bipolar with a range of Ref-to Ref+. The modulator’s proprietary sampling technique reduces the average input current to less than 50nA – orders of magnitude lower than typical delta sigma AD ...
Lecture 1 (2)
Lecture 1 (2)

... small signals. In electronic circuits, static signals usually define operating points of electronic devices to provide a required translation (gain) for small signals. Static signals are defined by the designer. The origin of small signals is usually external. They enter the circuit through either a ...
ElectromagneticSpectrumQuestions - School
ElectromagneticSpectrumQuestions - School

... List the colours of the spectrum of white light starting with the colour of lowest frequency. List the colours of the spectrum of white light starting with the colour of shortest wavelength. ...
4CM CiTiceL®
4CM CiTiceL®

... Every effort has been made to ensure the accuracy of this document at the time of printing. In accordance with the company’s policy of continued product improvement City Technology Limited reserves the right to make product changes without notice. No liability is accepted for any consequential losse ...
BD238
BD238

... with “Base Island” layout. The resulting transistor ...
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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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