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Lab One: Introductory Digital Design Laboratory
Lab One: Introductory Digital Design Laboratory

mic+600/DD/TC - Automation24
mic+600/DD/TC - Automation24

... of up to ten sensors automatically also operates in a mixed configuration of sensors with different detection ranges. The measurement repetition rate is then determined by the sensor with the largest detection range. If the sensors are electrically connected via pin 5 of the M12 circular connector, t ...
Untitled
Untitled

... Forced Convection Cooling: All Xtant amplifiers employ forced convection cooling for thermal management. An on-board thermal sensing circuit regulates fan speed to maintain optimum operating temperature. PWM Power Supply: All Xtant amplifiers feature a fully regulated, Pulse Width Modulated power su ...
High Performance Portable DC Bench Power Supply
High Performance Portable DC Bench Power Supply

Delphi DNL, Non-Isolated Point of Load
Delphi DNL, Non-Isolated Point of Load

... The Delphi series DNL, 8.3~14V input, single output, non-isolated point of load DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing ― Delta Electronics, Inc. The DNL series provides a programmable output voltage from 0.75V to 5.0V through an ext ...
isobar® - Parts Express
isobar® - Parts Express

... and electronics, featuring all-metal housings and exclusive isolated filter banks. The Isobar is the #1 selling premium surge suppressor (with more than 12 million in use worldwide) and was rated #1 by America's leading consumer magazine! 120V and 230V models are available in a variety of configurat ...
Reduction of Harmonics Contained in the Input Power Supply
Reduction of Harmonics Contained in the Input Power Supply

MAX9164 3.3V Single LVDS Driver/Receiver General Description Features
MAX9164 3.3V Single LVDS Driver/Receiver General Description Features

... The MAX9164 high-speed LVDS driver/receiver is designed specifically for low-power point-to-point applications. The MAX9164 operates from a single 3.3V power supply, and is pin compatible with the DS90LV019. The device features an independent differential driver and receiver. The MAX9164 driver outp ...
Overview of Dynamic Voltage Restorer (DVR) for Power Quality
Overview of Dynamic Voltage Restorer (DVR) for Power Quality

Amplifier Modelling
Amplifier Modelling

... ROUT is the Norton resistance seen at the output terminals and is called the output resistance of the amplifier  AIIIN is the Norton current produced at the output of the amplifier where AI is the current gain of the amplifier. ...
2016 Top Side Controller not Functioning (120V Systems)
2016 Top Side Controller not Functioning (120V Systems)

5.2 Control Characteristics of Vienna Rectifier Switches
5.2 Control Characteristics of Vienna Rectifier Switches

... 1. It is a 3-Phase, three level PWM rectifier, utilizing three MOSFETS, with controlled output Voltage; three wire input, not requiring any connection to Neutral. 2. It is a dual boost type PFC with continuous sinusoidal input current and unidirectional power flow 3. It needs only three active switc ...
Multiple State Electrostatically Formed Nanowire Transistors
Multiple State Electrostatically Formed Nanowire Transistors

AL8812 Description Pin Assignments
AL8812 Description Pin Assignments

... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
DC Circuits Simulation
DC Circuits Simulation

... Construct a simple series circuit with the following amounts of light bulbs using the PhET simulation. Remember in a series circuit, there is only one path for electricity to flow. Keep the battery source the same. Draw the proper circuit diagram in your table and rank the relative brightness in you ...
S. Lim, J. Ranson, D.M. Otten, and D.J. Perreault, “Two-Stage Power Conversion Architecture for an LED Driver Circuit,” 2013 IEEE Applied Power Electronics Conference , pp. 854-861, March 2013.
S. Lim, J. Ranson, D.M. Otten, and D.J. Perreault, “Two-Stage Power Conversion Architecture for an LED Driver Circuit,” 2013 IEEE Applied Power Electronics Conference , pp. 854-861, March 2013.

... in the previous section. The second stage is a magnetic-based stage that provides both additional voltage transformation and fine voltage regulation, and is operated at high frequency (e.g., HF, 3-30 MHz) in order to minimize magnetic component size. High-frequency operation is more readily achieved ...
STL23NM50N
STL23NM50N

... Figure 19. PowerFLAT™ 8x8 HV drawing mechanical data BOTTOM VIEW ...
LMP8645/LMP8645HV Precision High Voltage
LMP8645/LMP8645HV Precision High Voltage

AN-178 Rev. New - Holt Integrated Circuits
AN-178 Rev. New - Holt Integrated Circuits

... feature of the HI-8195 family is the power down open-circuit of the switches. This feature is very useful in ARINC 429 bus applications. All analog switches exhibit very low supply current on the VLOGIC, V+ and V- pins. Three versions are available, featuring different combinations of normally open ...
Fixed resistors General introduction
Fixed resistors General introduction

... usually, the resistor must withstand a continuous train of pulses of repetition time tp during which only a small resistance change is acceptable. This resistance change △R/R is equal to the change permissible under continuous load conditions. The continuous pulse train and small permissible resista ...
Oscillators
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... is higher is lower is the same ...
TVS Diode Array SP723 Lead-Free/Green Datasheet
TVS Diode Array SP723 Lead-Free/Green Datasheet

... The SP723 is an array of SCR/Diode bipolar structures for ESD and over-voltage protection of sensitive input circuits. The SP723 has 2 protection SCR/Diode device structures per input. There are a total of 6 available inputs that can be used to protect up to 6 external signal or bus lines. Overvolta ...
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... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any ...
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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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