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What`s on the board?
What`s on the board?

Impact of Dimming White LEDs
Impact of Dimming White LEDs

... There are two general methods to generate white light with LEDs. The first is by the use of phosphors together with a short-wavelength LED, resulting in a broadband radiation spectrum, referred to as a phosphor-converted white LED, or PC white LED [2-5]. The second method is to utilize mixed light f ...
English / 1.8M
English / 1.8M

... flanger circuit using BBD (bucket brigade device) and high-performance NR (noise reduction). ● Wide range of effects, such as heavy/deep jet sound and chorus-like tremolo sound, are available. ● By using an external footswitch, jet sound is turned ON and OFF. VJR9 can be used as a flanger when jet s ...
flow measurement technology - BEDA Flow Systems Pvt. Ltd.
flow measurement technology - BEDA Flow Systems Pvt. Ltd.

... If a single pick-up (1 impulse per conveyed tooth gap volume) cannot be used in an application because of the length of its body (115 mm), a modified double pick-up of series VE... (body length 43 mm) can be used, which operates with only one active carrier frequency oscillator and delivers the sign ...
Designing an Ultra Low Power Digital-to-Analog Converter
Designing an Ultra Low Power Digital-to-Analog Converter

... ABSTRACT: In this paper an ultra-low power Digital-to-Analog Converter (DAC) for ultra-low power applications is presented. A number of techniques are used to reduce the power consumption and relatively boost the speed of the DAC. These techniques include low current source and mirrors besides using ...
Analog-Digital
Analog-Digital

CS412 Computer Networks - Winona State University
CS412 Computer Networks - Winona State University

Z-source Inverter Fed Induction Motor Drives – a Space Vector... Based Approach
Z-source Inverter Fed Induction Motor Drives – a Space Vector... Based Approach

... adjustable speed AC drives (ASD) with both voltage buck and boost capabilities as they allow inverters to be operated in the shoot through state. It utilizes an exclusive Z – source network (LC component) to link the main inverter circuit to the power source (rectifier). By controlling the shoot-thr ...
electrical potential
electrical potential

... D.C. circuit analysis Electric Circuits: Any path along which electrons can flow is a circuit. For a continuous flow of electrons, there must be a complete circuit with no gaps. A gap is usually provided by an electric switch that can be opened or closed to either cut off or allow electron flow. An ...
The SMRD subdetector at the T2K near detection station
The SMRD subdetector at the T2K near detection station

... Signals from both sides of the scintillator (coincidence gate: 30 ns) At least two such coincidences from one tower Signals from two (or more) towers from different walls (coincidence gate: 200 ns, because of the flight time) ...
LP38500/2-ADJ, LP38500A/2A-ADJ
LP38500/2-ADJ, LP38500A/2A-ADJ

... TI's FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dro ...
Ultra-low Current Measurements with Silicon-on
Ultra-low Current Measurements with Silicon-on

... digital current sign bit. In order to compensate for the device imprecise components, in particular the integration capacitance Cf , we have corrected the transfer function curve to show the linearity of the device. The raw data collected from the device shows an offset of 0.1nA towards positive cur ...
A LOW-COST RESISTIVIMETER FOR USE IN PRACTICAL
A LOW-COST RESISTIVIMETER FOR USE IN PRACTICAL

Review from 1/19
Review from 1/19

... like the one you built and tested last lab. The letter most commonly used to refer to current in schematics and books is capital ‘I’. An amp is the basic unit of current, and the notation for the amp is the capital ‘A’. An amp is a very large amount of current, we will typically work with mAmps (1/1 ...
PCM1702 数据资料 dataSheet 下载
PCM1702 数据资料 dataSheet 下载

... The PCM1702 is a new solution to the problem. It combines all the advantages of a conventional DAC (excellent full scale performance, high signal-to-noise ratio and ease of use) with superior low-level performance. Two DACs are combined in a complementary arrangement to produce an extremely linear o ...
1969 , Volume , Issue June-1969
1969 , Volume , Issue June-1969

DS90LV110T 1 to 10 LVDS Data/Clock Distributor General Description
DS90LV110T 1 to 10 LVDS Data/Clock Distributor General Description

... ground plane. These planes will improve shielding and isolation as well as increase the intrinsic capacitance of the power supply plane system. Naturally, to be effective, these planes must be tied to the ground supply plane at frequent intervals with vias. Frequent via placement also improves signa ...
Circuits - Wappingers Central School District
Circuits - Wappingers Central School District

... the potential energy given to them by the elevator, expending all of it by the time they reach the ground floor. So the sum of the V drops across the resistors the voltage of the battery. People lose more potential energy going down longer flights of stairs, so long stairways correspond to high resi ...
NPTIHVDCop
NPTIHVDCop

lesson3-student-answers 2483KB Apr 09 2015 10:22:46 AM
lesson3-student-answers 2483KB Apr 09 2015 10:22:46 AM

... Coulombs have to fall this distance to return to the battery. 4) What does our model predict the voltage drop across the other light bulb will be? Explain. Our model predicts that the voltage (potential) drop across the light bulb will be 1 Volt. The Coulombs have to fall this distance to return to ...
Manual for Frequency Counter 2.7 Ghz
Manual for Frequency Counter 2.7 Ghz

... Turn the knob counterclockwise for updating faster reading, or turn it clockwise for more resolution (digital display). Pulling out the GATE TIME knob to freeze the latest displayed reading for being written down. Then return the counter to normal operation by pressing back the knob. When the instru ...
doc - STAO
doc - STAO

... have to fall this distance to return to the battery. The other light bulb in parallel makes no difference to the distance the Coulombs have to fall. ...
AD7741/AD7742 Data Sheet
AD7741/AD7742 Data Sheet

Physics Today
Physics Today

Tracer UC400 Programmable Controller
Tracer UC400 Programmable Controller

... Vdc inputs, or 4–20 mA inputs. ...
< 1 ... 1899 1900 1901 1902 1903 1904 1905 1906 1907 ... 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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