Information AboutBreadboard |
| CATEGORIES ABOUT BREADBOARD | |
| electronics | |
| electronic design | |
| electronic test equipment | |
| electronics work tools | |
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A breadboard is a reusable Solder less device used to build a (generally temporary) Prototype of an Electronic Circuit and for experimenting with circuit designs. This is in contrast to Stripboard (veroboard) and similar prototyping Printed Circuit Board s, which are used to build more permanent prototypes or one-offs, and cannot easily be reused. A typical breadboard will have strips of interconnected electrical terminals, known as bus strips, down one or both sides—either as part of the main unit or as separate blocks clipped on—to carry the power rails. A modern solderless breadboard consists of a perforated block of plastic with numerous tin plated Phosphor Bronze spring clips under the perforations. Integrated Circuit s (ICs) in dual inline packages (DIPs) can be inserted to straddle the centerline of the block. Interconnecting wires and the leads of discrete components (such as Capacitor s, Resistor s, Inductor s, ''etc.'') can be inserted into the remaining free holes to complete the circuit topology. In this manner, a variety of electronic systems may be prototyped, from small circuits to complete Central Processing Unit s (CPUs). However, due to large stray Capacitance (from 2-25pF per contact point), solderless breadboards are limited to operating at relatively low frequencies, usually less than 10 MHz , depending on the nature of the circuit. NAMING HISTORY The breadboard derives its name from an early form of Point-to-point Construction . In the early days of radio, amateurs would nail copper wire or terminal strips to a wooden board (often literally a board for cutting bread), and solder electronic components to them. Sometimes a paper schematic diagram was first glued to the board as a guide to placing terminals, components and wires. ) is similar to the node pattern of the breadboards shown above.]] The integrated circuit for the Polaroid SX-70 Camera was breadboarded before Texas Instruments fabricated the custom chip. It was rumoured to have been built from discrete components on a 4 ft. x 8 ft. piece of plywood, and was fully functional. The project was so secret that Texas Instruments engineers were only given functional specifications, but not told the purpose of the chip. ALTERNATIVES Alternative methods to create prototypes are circuits, or where software models of components are inexact or incomplete. single board computer.]] USE OF THE TERM IN SOFTWARE ENGINEERING A breadboard prototype (also known as an '''evolutionary prototype''') is an iteratively designed piece of software designed to evolve into a full-fledged system. This contrasts with a throwaway prototype (often associated with a proof-of-concept) that is discarded. SEE ALSO REFERENCES EXTERNAL LINKS |
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