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Diode Junction Voltage
Please clear my doubt regarding diodes!!?
In forward biasing of junction diode there is more diffusion, there4 more electrons and hole recombination. As such there are more un-neutralized charges produced. So the width of the depletion layer should INCREASE. Then why it decreases??? And also if the depletion layer width INCREASES then we need to continuously change the voltage supplied to overcome the new potential.(will increase due to more charges bt should decrease due to more width!!!???) ????what’s the fact. please explain!!
Depletion layer is at, or very near the junction. The decrease is because more electrons are being forced in to cancel out the "holes" in this region. The only way that the depletion layer is going to increase is if the diode is reverse biased.
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PN Junction Diode, The: Volume III $48.75 No Synopsis Available |
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4-Way Junction Box $121.94 4-Way Junction Box Junction Box™Save time on installation.Simply bring the power feed into one IP68 terminal box, then quickly connect all the LED drivers in one location with the Plug & Play Deutsch connector. For DC voltage only. |
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Transmission Lines and Schottky Diode $108.33 A nonlinear relation between current and voltage for schottky resonant tunneling diode is used. A general form of equation similar to VanDer Pol equation is obtained. A Resonant tunneling diode(RTD) has a negative differential resistance that means when the voltage increases the current decreases. This property is very useful for oscillators manufacture. Nonlinear transmission lines is considered to show that it canbe used in oscillators and to show that it can reshape the sinusoidal signals to othershapes by using OrCad and mathematica programming. Author: ElKhozondar, Hala J./ ElKhozondar, Rifa J./ Abo Ireban, Ibtisam Binding Type: Paperback Number of Pages: 80 Publication Date: 2011/07/12 Language: English Dimensions: 9.02 x 5.98 x 0.19 inches |
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DiodeLed DI0940 Meanwell Junction Box $312 The Meanwell Junction Box provides a protective housing for several Diode LED 12V HardWired NonDimmable Drivers. This junction box is compatible with the 200W HardWired NonDimmable Driver (DI0909) 300W HardWired NonDimmable Driver (DI0928) and 600W HardWired NonDimmable Driver (DI0929). This NEMA 1 steel power supply enclosure is intended for indoor use and features ventilation holes four 1/2 inch knockouts and builtin mounting tabs. This junction box is ETL Listed. Enclosure Type: NEMA 1. Mounting Holes Size: 0.25 . Knockouts: (4) 0.5 in. NPT. Length: 15.5 . Width: 6.5 . Height: 2.6 . |
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Voltage Doubler $54.86 High Quality Content by WIKIPEDIA articles A voltage doubler is an electric circuit with an AC input and a DC output of roughly twice the peak input voltage. They are a variety of voltage multiplier circuit and are often, but not always, a single stage of a general form of such circuits. The term is usually applied to circuits consisting of rectifying diodes and capacitors only, other means of doubling voltages are not included.The Villard circuit consists simply of a capacitor and a diode. While it has the great benefit of simplicity, its output has very poor ripple characteristics. Essentially, the circuit is a diode clamp circuit. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/07/14 Language: English Dimensions: 6.00 x 9.00 x 0.16 inches |
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Kichler 15609AZT Textured Architectural Bronze Landscape Lighting Accessory/ Junction Box Mounting Bracket 15609 $23 Junction Box Mounting Bracket For use with low voltage and line voltage fixtures Corrosion resistant aluminum alloy |
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Kichler 15609BKT Textured Black Landscape Lighting Accessory/ Junction Box Mounting Bracket 15609 $23 Junction Box Mounting Bracket For use with low voltage and line voltage fixtures Corrosion resistant aluminum alloy |
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Up The Junction $5.99 Up The Junction |
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Tarfar Junction $6.49 Tarfar Junction |
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Hallelujah Junction $11.49 Hallelujah Junction |
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Jungle Junction $5.99 Jungle Junction |
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Rhythm Junction $8.99 Rhythm Junction |
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Cemetery Junction $9.99 Cemetery Junction |
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Tenderness Junction $8.99 Tenderness Junction |
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Junction Seven $8.49 Junction Seven |
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PyleHome PDMT08 Compact Digital Multimeter With ACDC Voltage#44; Current#44; Resistance#44; Diode Check#44; Continuity Test $75.39 DoubleMolded Plastic Housing. HighContrast LCD Display. CATIII Rated. Voltage DC: Max Range 600 V Accuracy: +/ 0.5. Voltage AC: Max Range 600 V Accuracy: +/ 1.2. Current DC: Max Range 10 A Accuracy: +/ 2.5. Resistance: 2 MO Accuracy: 0.8. Diode Check. Continuity Test. Accessories Included: Test Leads 9V Battery. Dimensions: 5.91 H x 2.76 W x 1.89 D. |
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Pyle LAN Tester,Multimeter and Diode Tester $110.8 2 in 1 LAN Tester and Multimeter with Voltage, Current, Resistance, Continuity, and Diode Tester Tests Pin Configuration for 10 Base-T, 10 Base-2, RJ45/RJ11, 356A, TIA-569A/568B and Token Ring Cable Remotely Test Cables Up to 330 Yards Away Test Ground Wire Measure DC/AC Voltage, DC/AC Current, Resistance, Continuity, and Diode DC Voltage: Max Range 600 V, Accuracy +/- 0.5% AC Voltage: Max Range 600 V, Accuracy +/- 1.2% DC Current: Max Range 200 mA, Accuracy +/- 1.2% AC Current: Max Range 200 mA, Accuracy +/- 2.0% Resistance: Max Range 20 MO, Accuracy +/- 0.8% Continuity Test: Beeps If Less Than 100 O Accessories Included: Test Leads, LANtest Remote Terminator, 9V Battery, Carrying Case Dimensions: 6.38" H x 2.93" W x 1.73" D Weight: 10.86 oz. |
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Electronic 2 Pin Terminals 8A 600V MUR860 Power Rectifier
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DescriptionWeight: 2.5g. |
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Analog IC Design with Low-Dropout Regulators (LDOs) (Electronic Engineering)
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DescriptionMaster Analog Integrated-Circuit DesignDesign, analyze, and build linear low-dropout (LDO) regulator ICs in bipolar, CMOS, and biCMOS semiconductor process technologies. This authoritative guide offers a unique emphasis on embedded LDO design... |
Foreign stabilitrons
Why no voltage drop Vce across transistor ?
If a transistor is basically two diodes and there is a voltage drop Vbe of ca. 0.7V across the base-emitter junction for a fully saturated transistor, then why is there no voltage drop of >= 0.7V across collector-emitter ? Doesn't the collector current have to go across the same base-emitter junction as well ?
In saturation, both base to emitter and base to collector junctions are forward biased. This means there will be a 0.7 v drop from base to emitter AND 0.7v drop from base to collector. Since the base-to-emitter and base-to-collector voltages are almost the same, the collector to emitter voltage is almost zero (if the junctions were physically matched, the saturation voltage would in theory be zero.)
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