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Electronic Devices and Engineering Designs

Discrete Passive

Capacitors, Resistors, Zeners, Diodes, Bipolar Transistors, FET.

Resistors and How they Work

2017-06-16
By: delabs
In: Discrete Passive
Tagged: Technical-Reference

Resistors start from Wires to Wirewound Types. Carbon Film Resistors are most Common, Metal Film Resistors are more stable and accurate. We have now SMD types with lower power someRead More

Design of a Constant Current Source

2016-02-09
By: delabs
In: Analog Design, Discrete Passive
Tagged: design-notes

This article will explain the way a simple transistor based current source is designed, this will give an idea on how some components can be used in a practical wayRead More

Electric double layer capacitor an eFlywheel

2009-08-04
By: delabs
In: Discrete Passive, Power Electronics

The Electric double layer capacitor has the main use of a Charge Reservoir. That means a large amount of electrical charge in a small footprint. These charge/discharge quickly unlike theRead More

Design Notes – Components Selection – 05

2009-01-15
By: delabs
In: Basic Electronics, Discrete Passive

Selecting the parts for your product design, choosing the components intelligently is a part of Product Design Engineering. Budget, Availability, Size, Alternate Vendors, Product Life and Quantity to be manufacturedRead More

electronic-components-2

Circuits using only discrete devices

2008-10-18
By: delabs
In: Circuits, Discrete Passive
Tagged: Technical-Reference

Here are circuits made of Resistors, Capacitors and Inductors which are passive components. Crystals, Thermistors, Varistors, Variable Passive RLC are also Passive Parts. Circuits using only discrete devices Zeners, Diodes,Read More

Principles of Semiconductor Devices

2008-09-10
By: delabs
In: Discrete Passive
Tagged: Material-Science

Principles of Semiconductor Devices The purpose of this text is to explore the internal behavior of semiconductor devices, so that we can understand the relation between the device geometry andRead More

elcap

Types of Capacitors

2008-09-06
By: delabs
In: Discrete Passive

Capacitors are as simple as two plates of metal separated by a insulator called dielectric. When you make large values of capacitors, just two films or plates will not do,Read More

bd139-bd140

BD139 and BD140 Complementary transistor

2008-08-27
By: delabs
In: Discrete Passive
Tagged: design-notes, Technical-Reference

This pair is my favorite when driving small solenoids or motors. SOT-32 and 12 Watts on Heatsink. This means any small solenoid, relay or DC motor can be controlled withRead More

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The documents, software, tools and links are provided to enhance the ability of an electronics student, hobbyist or professional by sharing information. The information, links etc. should be used by the website visitor, at his or her own risk and responsibility. There may be concept, design and link errors in the pages.

Creative Work, ideas and documents of delabs can be used for Product Design and Development by R&D Engineers, Hobbyists, Students and even firms for creating useful products. These cannot be used for reprint, replication or publishing online or offline.