Flashcards
Diode Construction (Mod.4 Sect.2 Part 4)
Flashcards do conjunto (44)
- 1A _____ is a semiconductor device that has two terminals. They conduct electrons and are used to modify voltage input.diodes
- 2A ____ diode is a semiconductor with N and P-type materials that are chemically combined. They form a junction that allows conduction in one direction only.junction
- 3In a diode, the point where the P and N-type materials meet is called the ______.PN junction
- 4The top (positive) side of a diode is called the _____.anode
- 5The bottom (negative) side of a diode is called the _____.cathode
- 6The area around the PN junction where no charge carriers are available is called the __________.depletion region
- 7The depletion region is also sometimes called the ____ region or the ____ region.insulation, barrier
- 8The voltage present across the PN junction is called ____ voltage or junction ____.voltage, potential
- 9When voltage is applied to a diode in the forward direction (cathode to anode), it's called _________.forward-biasing
- 10When voltage is applied to a diode in the reverse direction (anode to cathode), it's called _________.reverse-biasing
- 11A diode's __________ shows the variation of the diode current versus the current across the diode. It's a line graph on a horizontal and vertical axis.characteristic curve
- 12The voltage at which a diode starts conducting is called its ___________.breakover voltage
- 13A ____ diode is a special type of diode designed to allow current to flow backwards without overheating. They are usually made of silicon.zener
- 14____ diodes are generally used to regulate voltage in power supplies.zener
- 15When the voltage across a device stays the same regardless of the amount of current moving through it, it's called a _________ device.constant-voltage
- 16When a diode reaches its ____ point, it begins to conduct rapidly in the reverse direction.zener
(aka reverse-breakover voltage) - 17The ______ delay of a signal is the measure of the amount of time that it takes for a change in input voltage or current to reach the output port.propagation
- 18Propagation delay is also called _________.transit time effect
- 19______ emission is the discharge of electrons from heated materials. It's commonly used as a source of electrons in conventional electron tubes.Thermionic
- 20_______ are special diodes used in microwaves and radar systems.Magnetrons
- 21A device that conducts the same amount of current even when the voltage across it changes is called a ________ device.constant-current
- 22Diodes that have a low-voltage positive or negative breakover point are very useful as signal detectors, so they're often called _____ diodes.signal
- 23The _____ or ____ diode gets its name from the fact that it's operated in a reverse-biased mode.backwards, back
- 24A ________ diode is made of a fine metal wire called a cat's whisker mounted w/ pressure against a block of N-type germanium material.point contact
- 25The _______ diode is made of N-type material and metal. This type of diode has no depletion region.hot carrier
- 26The hot carrier diode is also called the ______ diode.Schottky
- 27A _______ diode (___) produces visible light when it's forward biased. They are generally made of gallium arsenide.light-emitting, LED
- 28The word ____ is an acronym for "light amplification by stimulated emission of radiation".laser
- 29The ____ laser was the first type of laser ever made.ruby
- 30_____ light is the type of light produced by ordinary light bulbs.Incoherent
- 31_____ light is the type of light produced by a laser.Coherent
- 32________ diodes (___) are triggered into conduction when light hits them.light activated, LAD
- 33Devices that are triggered into operation by light are called ______.photosensitive
- 34An _________ is a device that contains both an LED and an LAD in a single light-tight case.optical coupler
- 35A ____ diode is composed of a layer of intrinsic semiconductor material sandwiched between a layer of P-type material and N-type material.P+N
- 36A _____ diode is a type of junction diode that's specially made to be used as a variable capacitor.varactor
- 37A difference of potential between a positive charge and a negative charge is called a ____.voltage
- 38The characteristic curve of an avalanche diode has the same basic shape as the characteristic curve for a ____ diode.zener
- 39Another name for a four-layer diode is a _____ diode.Schockley
- 40The first laser was made with a material called ____.ruby
- 41In a certain diode circuit, all of the negative half cycles of AC are passed, but no part of the positive half cycle above 3 V is passed. The circuit is called a _________ circuit.positive limiter
- 42To protect a meter from accidental overload and accidental reverse voltage, two diodes are used. They're connected in ________.reverse parallel
- 43What type of component is sometimes used as a blown fuse indicator?neon light
- 44An oscillator that operates by charging and discharging a reactive component, and has a nonsinusoidal output voltage is called a _____ oscillator.relaxation
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- That Yeti Dog Person · set 2021
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- 9 set 2021
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