Terahertz Optical Transistors Beat Silicon

PORTLAND, Ore.--Purdue University researchers have demonstrated a CMOS-compatible all-optical transistor capable of 4THz speeds, potentially over a 1000 times faster than silicon transistors. Nano-photonic transistors processed at low-temperatures can be fabricated atop complementary metal oxide semiconductors (CMOS) to boost switching time by ~5,000-times less than 300 femtoseconds (fs) or almost 4 teraher ...

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High-Power Control: Arduino + TIP120 Transistor

Up until now, we have talked about working with a lot of low-power devices. Sensors, LEDs, ICs, and the like are all capable of being powered directly from your Arduino, but as many awesome 5 and 3.3v components as there are, eventually you will find yourself holding a 12v solenoid, motor, or light and wondering “How the heck am I supposed to control this from my Arduino?” Well today we are going to talk ab ...

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Quantum Transistor Harnesses New Effect

PORTLAND, Ore. -- A new type of transistor harnesses a new effect--called the quantum spin Hall effect -- to create a topological field effect transistor (TFET) according to a Massachusetts Institute of Technology (MIT) researcher who recently moved to the newly formed Department of Materials Science and Engineering at Texas A&M University where the Texas Advanced Computer Center (TACC) confirmed the re ...

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The Transistor Menace – Questions regarding an Arduino rgb LED project

I've been browsing this forum and the internet now for a couple of days and what I thought would be an easy side project turned into a (for me) quite complicated matter. I'm planning to build a mood light that consists of 12 common cathode rgb LEDs with each colour being controlled by an Arduino's PWM pins. In this diagram that has been posted here a while ago I found pretty much the outline for all that I ...

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1st successful test of the transistor, December 16, 1947

What began as research to improve telephone service became one of the most important inventions in electronics history. In 1945, AT&T's research division, Bell Labs, began working on technology to replace vacuum tubes and make long-distance telephone service more reliable. William Shockley organized a solid-state physics group to research semiconductor replacements for vacuum tubes and electromechanical ...

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Using a transistor to control high current loads with an Arduino

In this tutorial, you'll learn how to control a high-current DC load such as a DC motor or an incandescent light from a microcontroller. (:toc Table of Contents:) Connect a transistor to the microcontroller The transistor allows you to control a circuit that's carrying higher current and voltage from the microcontroller. It acts as an electronic switch. The one you're using for this lab is an NPN-type trans ...

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1st successful test of the transistor, December 16, 1947

What began as research to improve telephone service became one of the most important inventions in electronics history. In 1945, AT&T's research division, Bell Labs, began working on technology to replace vacuum tubes and make long-distance telephone service more reliable. William Shockley organized a solid-state physics group to research semiconductor replacements for vacuum tubes and electromechanical ...

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Rohm claims to have smallest transistor package

ROHM Semiconductor Ultra Compact MOSFETs & Bipolar Transistors have the smallest transistor package on the market which is optimized for thin, compact portable devices. The VML0806 case type measures just 0.8mm×0.6mm, with a height of only 0.36mm. As portable devices, such as smartphones and digital cameras get smaller and more sophisticated, thinner, more compact components are required. Until now, pro ...

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Tutorials for Arduino Getting Acquainted with Arduino

Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments. Arduino can sense the environment by receiving input from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. The microcontr ...

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Build a transistor circuit board for controlling Air Conditioner remote control with Arduino

I was supporting a group of student on their graduation project. One of the difficulties they faced was on controlling an A/C unit with Arduino microcontroller. The first experiment we tried to work it out was by record the A/C remote control beam signal for each needed button by using the IRrecvDump code with IRremote library for Arduino (https://github.com/shirriff/Arduino-IRremote). Then, use these signa ...

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Arduino Motors and Transistors

This week, we’ll finally be using the Arduino to control some motors! First up, we’ll control a standard DC motor running off a 9V battery with the help of an NPN transistor and a PWM (Pulse Width Modulated) signal from the Arduino. [box type="note" color=" #202020 " bg="#ffbb00 " font="verdana" fontsize="14" radius="20 " border="#000" float="right" head="Attributes"]Thanks to Jeremy , for this articles[/bo ...

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