A3. Revision notes - Practical Electricity
... So the voltage across the thermistor falls. This means the voltage across the variable resistor goes up (as the two resistors share the supply voltage). When the voltage across the variable resistor rises above 0.7 V, the NPN transistor switches ON and the LED comes on. By adjusting the variable res ...
... So the voltage across the thermistor falls. This means the voltage across the variable resistor goes up (as the two resistors share the supply voltage). When the voltage across the variable resistor rises above 0.7 V, the NPN transistor switches ON and the LED comes on. By adjusting the variable res ...
Electronics II. 3. measurement : Tuned circuits
... b) Use the function generator to provide a 10 Vpp sinewave to the input of the double T. Measure the transfer function (Vout vs frequency) between 20Hz and 20kHz. Use more detailed sampling in places where the function changes rapidly. Find values of f0, f1 and f2 (as in figure 2). Use an oscillosco ...
... b) Use the function generator to provide a 10 Vpp sinewave to the input of the double T. Measure the transfer function (Vout vs frequency) between 20Hz and 20kHz. Use more detailed sampling in places where the function changes rapidly. Find values of f0, f1 and f2 (as in figure 2). Use an oscillosco ...
The Simplest Equivalent Circuit of
... (3) must have priority over (4), because (3) is always applicable to any star, while (4) is only possible to the mesh which satisfies a certain special condition4 5). Let us apply the procedures (1), (2) and (3) as far as there remains a node or a branch parallel to another branch within the circuit ...
... (3) must have priority over (4), because (3) is always applicable to any star, while (4) is only possible to the mesh which satisfies a certain special condition4 5). Let us apply the procedures (1), (2) and (3) as far as there remains a node or a branch parallel to another branch within the circuit ...
§7 Designing with Logic
... Even better are devices from the BiCMOS series and all CMOS devices, although in CMOS parts, a part of the advantage of their low quiescent current is lost by their higher dynamic power dissipation. ...
... Even better are devices from the BiCMOS series and all CMOS devices, although in CMOS parts, a part of the advantage of their low quiescent current is lost by their higher dynamic power dissipation. ...
Lecture 11 slides - Digilent Learn site
... Creating the Norton equivalent circuit 1. Identify the circuit for which the Norton equivalent circuit is desired 2. Kill sources and determine RTH of the circuit 3. Re-activate the sources, short the output terminals, and determine isc 4. Place the Norton equivalent circuit into the original overa ...
... Creating the Norton equivalent circuit 1. Identify the circuit for which the Norton equivalent circuit is desired 2. Kill sources and determine RTH of the circuit 3. Re-activate the sources, short the output terminals, and determine isc 4. Place the Norton equivalent circuit into the original overa ...
150LECTURE16TRANSISTORS Lecture Notes Page
... Current injected into the GATE controls the TRIAC ...
... Current injected into the GATE controls the TRIAC ...
Integrated circuit
An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small plate (""chip"") of semiconductor material, normally silicon. This can be made much smaller than a discrete circuit made from independent electronic components. ICs can be made very compact, having up to several billion transistors and other electronic components in an area the size of a fingernail. The width of each conducting line in a circuit can be made smaller and smaller as the technology advances; in 2008 it dropped below 100 nanometers, and has now been reduced to tens of nanometers.ICs were made possible by experimental discoveries showing that semiconductor devices could perform the functions of vacuum tubes and by mid-20th-century technology advancements in semiconductor device fabrication. The integration of large numbers of tiny transistors into a small chip was an enormous improvement over the manual assembly of circuits using discrete electronic components. The integrated circuit's mass production capability, reliability and building-block approach to circuit design ensured the rapid adoption of standardized integrated circuits in place of designs using discrete transistors.ICs have two main advantages over discrete circuits: cost and performance. Cost is low because the chips, with all their components, are printed as a unit by photolithography rather than being constructed one transistor at a time. Furthermore, packaged ICs use much less material than discrete circuits. Performance is high because the IC's components switch quickly and consume little power (compared to their discrete counterparts) as a result of the small size and close proximity of the components. As of 2012, typical chip areas range from a few square millimeters to around 450 mm2, with up to 9 million transistors per mm2.Integrated circuits are used in virtually all electronic equipment today and have revolutionized the world of electronics. Computers, mobile phones, and other digital home appliances are now inextricable parts of the structure of modern societies, made possible by the low cost of integrated circuits.