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powerpoint
powerpoint

... another usually through wires. • It is due to the movement of a charge from a place of high potential to one of low potential. • An ampere (amp) is the measure of the amount of current flowing through a circuit. It is the rate that electric charges move through a ...
accumetric - PCB Piezotronics
accumetric - PCB Piezotronics

Introduction
Introduction

... limited and small, there is a possibility of jumping a gap and shorting two leads together. Also, a cold solder could result if the solder is not fully heated up when a component is added to the board. This could provide a bad connection resulting in poor performance. Using good soldering techniques ...
Jedec Standards
Jedec Standards

... example, if only 5% of your total heat loss is down through the PCB, your P would still be your total power. These can help with estimates of junction temperature for object already under use where temperatures can be measured and there is no heat sink present (instead of for the design phase) ...
ASCIII - American Standard Code for Information Interchange
ASCIII - American Standard Code for Information Interchange

... temperatures using microwaves. The plasma carries atoms to the surface of the substrate where they are attracted to the crystalline structure of the substrate. This underlying structure acts as a template. The new atoms continue to develop the structure to build up a layer on the substrate's surface ...
Kit 7. 3V FM TRANSMITTER
Kit 7. 3V FM TRANSMITTER

Motorcycle Brake Light Flasher
Motorcycle Brake Light Flasher

... Resistor R3 provides a discharge path for capacitor C1 after the power to the circuit is removed (via the brake switch wire). What this means is that there is no delay for the brake light to come on in between brakes; the flasher works as it should all the time. You can press the brake pedal as fast ...
Document
Document

... there were six incidents of power tools being stolen from garages and sheds in Reisterstown, but in five of those cases, the garages and sheds were unlocked.In the recent cases, the sheds were locked. The locks held in a few cases, but the lock clasps were pried off. Doarnberger cautioned that when ...
Series and Parallel Circuits
Series and Parallel Circuits

... Give two disadvantages to a series circuit. Describe a parallel circuit Give an advantage to a parallel circuit. Give a disadvantage to a parallel circuit. Which type of circuit is used in our homes. Why is this type used? Name the three types of energy that electrical energy can be converted into. ...
8-Channel ESD Protection Array
8-Channel ESD Protection Array

... international standard (Level 4, ±8 kV contact discharge). All I/Os are rated at ±25 kV using the IEC 61000−4−2 contact discharge method. Using the MIL−STD−883D (Method 3015) specification for Human Body Model (HBM) ESD, all pins are protected for contact discharges to greater than ±30 kV. The Chip ...
PIC Micro controllers1
PIC Micro controllers1

6 – 10 Watt Stereo Audio Amplifier (Code 3143)
6 – 10 Watt Stereo Audio Amplifier (Code 3143)

... easy to construct and has a minimum of external components. The module has output current protection and thermal protection. This is the data book circuit which produces an excellent sound. The supply voltage required for this kit is 8 - 18V DC at 1 to 2 Amps. Maximum output power will only be obtai ...
Series and parallel circuits
Series and parallel circuits

... The circuit uses just one 1.5v cell. When more than one cell is connected in series, the total potential difference is the total of the sum of their potential difference. Add another 1.5v cell in series and work out the total current in the circuit. See what happens to the amount of current flowing ...
NOT FOR NEW DESIGNS
NOT FOR NEW DESIGNS

Introduction to Programming - Louisiana Space Consortium
Introduction to Programming - Louisiana Space Consortium

... –BASIC Stamp I/O pins are brought out on expansion connector P2 and on groups of pads at PL and PH for wire connections. –Use of I/O pins must be planned to avoid device contention. LSU 2004 ...
Final build showcase
Final build showcase

... starters, car batteries or anything else capable of supplying 12V DC. Above you can see how I have simply attatched the crocodile clips from the jump started to the brass bolts which protrude from either side of the housing. This charges up the capacitors and a small digital voltmeter displays the v ...
CMP Modeling - University of Utah
CMP Modeling - University of Utah

... CONDUCTIVE plates separated and insulated from each other by a DIELECTRIC. ...
Fundamentals of Product Safety Design
Fundamentals of Product Safety Design

... Creepage = distance between two points along the surface  Creepage is measured on 1:1 artwork or on a blank board  Locations of circuits determined by reviewing schematics ...
DEM 1296-144 23 cm Transverter, and Transverter Kits
DEM 1296-144 23 cm Transverter, and Transverter Kits

History of Semiconductor
History of Semiconductor

... Semiconductor materials have been studied in laboratories as early as 1830. The first materials studied were elements and compounds, which are poor conductors if heated. However, when light is shine on them, it would generate an electrical current that could pass through them in one direction only. ...
MP32 Output Transformer options
MP32 Output Transformer options

useless_resistor_0
useless_resistor_0

... These minerals look like we expect conductors to look. It is important to realize that even a minor amount of tarnish or oxide coating on native silver or native copper can interrupt electrical continuity. Experimenters should also be aware that some native copper specimens are sold after they have ...
TS6001-2.5V Voltage Reference Demo Board
TS6001-2.5V Voltage Reference Demo Board

... using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein a ...
Precautions for Avoiding Static Electricity E
Precautions for Avoiding Static Electricity E

... polystyrene containers, which a prone to static buildup. When wrapping multiple printed circuit boards, use inserts to prevent the boards coming into contact with each other and from ratting around in their containers. Short the connectors of the printed circuit board with aluminum foil or shorting ...
Updated Annex B - Compliance Sheet
Updated Annex B - Compliance Sheet

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Printed circuit board



A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCBs can be single sided (one copper layer), double sided (two copper layers) or multi-layer (outer and inner layers). Multi-layer PCBs allow for much higher component density. Conductors on different layers are connected with plated-through holes called vias. Advanced PCBs may contain components - capacitors, resistors or active devices - embedded in the substrate.FR-4 glass epoxy is the primary insulating substrate upon which the vast majority of rigid PCBs are produced. A thin layer of copper foil is laminated to one or both sides of an FR-4 panel. Circuitry interconnections are etched into copper layers to produce printed circuit boards. Complex circuits are produced in multiple layers. Printed circuit boards are used in all but the simplest electronic products. Alternatives to PCBs include wire wrap and point-to-point construction. PCBs require the additional design effort to lay out the circuit, but manufacturing and assembly can be automated. Manufacturing circuits with PCBs is cheaper and faster than with other wiring methods as components are mounted and wired with one single part. Furthermore, operator wiring errors are eliminated.When the board has only copper connections and no embedded components, it is more correctly called a printed wiring board (PWB) or etched wiring board. Although more accurate, the term printed wiring board has fallen into disuse. A PCB populated with electronic components is called a printed circuit assembly (PCA), printed circuit board assembly or PCB assembly (PCBA). The IPC preferred term for assembled boards is circuit card assembly (CCA), and for assembled backplanes it is backplane assemblies. The term PCB is used informally both for bare and assembled boards.The world market for bare PCBs reached nearly $60 billion in 2012.
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