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Interleaved boost converter for power tracking of solar PV arrays
In this paper the advantages of an enhanced boost converter are utilized in a photovoltaic based energy system, in order to improve the efficiency and the output/input voltage gain. In addition, this circuit topology allows ... -
Cooking with authority : using a flipped lesson and librarian meeting to evaluate authority
This recipe is designed for an introduction to design course and is most suited to courses with a team project. It can be used to support courses in disciplines across STEM, especially environmental science, mechanical ... -
Patterning by light : the engineering of integrated circuits : a module developed for hands-on learning
This document is a lesson plan for a short module covering: (i) the concept of an integrated circuit and how it is patterned (ii) how light is used to induce a chemical change and form a pattern (iii) the size of integrated ... -
Thermal transport : conduction and radiation : a module developed for hands-on learning
This document is a lesson plan for a short module covering: (i) the concept of temperature and how it is measured, (ii) the transportation of heat - specifically conduction and radiation, (iii) the material dependence of ... -
Modeling a self-excited induction generator
Induction machines have been widely used in power generation and other industrial applications for decades due to their numerous advantages like robust design and lower cost as compared to synchronous machines. When a ... -
HP-55
The HP-55 programmable calculator came out a year after the HP-67 for a much lower price. It only had 49 lines of program memory (as compared to the HP-67's 224 lines). It did however offer twice as many storage registers, ... -
TI-1250 SR-11
The TI-1250 was considered a "fully-loaded" four-function calculator in 1975 operating on 9V batteries. The calculator is accurate up to 8 digits and features a red LED display. Originally it was manufactured in the United ... -
HP-67
Described as "a major leap forward in fully-programmable personal calculators, the HP-67 is the most powerful personal calculators HP has ever made." Features include: fully merged keycodes, more memory (224 merged program ... -
HP Thermal Printer 82162A
An accessory to the programmable calculators, this HP thermal printer prints on command and can be used to trace work and program execution. The HP thermal printer 82162A also features both printing and plotting functions. ... -
HP-75C
The HP-75C was HP's first portable computer. It ran BASIC and came with 16K of RAM with an expansion port for additional RAM and 48K of ROM with 3 ROM expansion ports. Adjusted for inflation using the consumer price Index, ... -
Hard Disk Drive (Destroyed)
Hard disk drives are non-volatile, random access devices for digital data. They are comprised of rotating rigid plates or motor-driven spindle within a protective enclosure. An example of a complete hard disk drive is ... -
Magnetic Tape
Magnetic tape, first used for data storage on the UNIVAC I computer in 1951, was the de facto standard used for large computer systems through the 1980s. The large 8" open reels were gradually replaced with cartridge tape ... -
HP-41CV
The HP41C series programmable calculators offered the first alphanumeric capabilities and featured ports for memory expansion. The HP-41CV calculator offered 4 ports for memory expansion and ultimately provided 5 times the ... -
Compucorp 322G Scientist
This programmable calculator holds one program up to 80 steps and is precise up to 13 digits. It operates using both algebraic and Trigonometric functions and was originally marketed as having a "groovy" orange plasma ... -
Intel 80386 Processor
Also known as the i386, this was a 32 bit processor chip introduced by Intel in 1985. The first versions had 275,000 transistors and were used as the central processing unit (CPU) of many workstations and high end personal ... -
Punch cards
First used in 1725 for textile looms in France, punch cards contain digit information represented by the presence or absence of holes in predefined positions. Now considered an obsolete recording system, punch cards were ...
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