Tag: Transistor
Berkeley Lab makes graphene-MoS2 transistor
U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has developed a way to assemble transistors based on the 2D materials graphene and molybdenum disulfide. By Peter Clarke @ edn-europe.com The method etches narrow channels in conducting graphene...
Continue ReadingSimple crystal tester
Dilshan Jayakody build a simple crystal tester based on Colpitts oscillator. He writes: This is simple Colpitts oscillator to test commonly available passive crystals which range between 2MHz to 27MHz. This unit must connect to an oscilloscope and/or frequency counter to get the...
Continue ReadingUSB curve tracer for NPN transistors
Dilshan Jayakody documented his USB port base NPN transistor curve tracer project: Curve tracer is an electronic test instrument to analyze the characteristics of transistors and other discrete semiconductors. In this post we construct USB base curve tracer to analyze properties of...
Continue ReadingRecord-setting flexible phototransistor revealed
Researchers at the University of Wisconsin-Madison have revealed a unique phototransistor that is flexible and faster and more responsive than any similar phototransistor. The innovative phototransistor could improve the performance of myriad products -- ranging from digital...
Continue ReadingPower ON Delay Switch
Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds. Specifications Supply input 5 VDC Relay output SPDT relay Relay specification 5 A @ 250 VAC Preset adjustable range function Power-On LED...
Continue ReadingComponent Tester FISH 8840 Review
Alan Parekh @ hackedgadgets.com has a review of a cheap component tested he found on ebay. This device can test bipolar transistors, MOSFET, diodes, thyristors, resistors and capacitors. He writes: This is an inexpensive component tester called the FISH 8840 which you can find from...
Continue ReadingNew flat transistor defies theoretical limit
by Bob Yirka @ techxplore.com: A team of researchers with members from the University of California and Rice University has found a way to get a flat transistor to defy theoretical limitations on Field Effect Transistors (FETs). In their paper published in the journal Nature, the...
Continue ReadingBasic Types of Transistors
In this article we will review the basic transistor types and their function. We will cover bipolar transistor, Junction FET, MOSFET and UJT transistor types. Feel free to comment with other transistor types you know. Bipolar Transistor Bipolar transistors are three terminal devices...
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