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 the battery, There is no Electrical Energy to Chemical Energy Transformation and back, like in batteries. It may need caution in design and usage as they may [...]
Archive of posts filed under the Discrete Passive category.
Electric double layer capacitor an eFlywheel
Design Notes – Components Selection – 05
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 manufactured are some factors that determine the selection of a prudent and experienced design professional.
To choose the right type of part, an exhuastive knowledge of the behaviour [...]
Circuits using only discrete devices
Here are circuits made of Resistors, Capacitors and Inductors which are passive components. Crystals, Thermistors, Varistors, Variable Passive RLC are also Passive Parts. Zeners, Diodes, NPN-PNP Transistors, FET, MOSFET, SCR, Triacs are all discrete active devices.
Circuits using only discrete devices
Isolated dual power supply from 5V
Telephone LED status indicator
Music Sound to light converter
Simple Water operated relay
LED [...]
Potentiometers and Trimpots
Potentiometers, Rheostats, Trimpots, Presets are Variable Resistors. These are user interface devices. When a user turns a dial on a Panel it moves a wiper on a resistor film or wire-wound former. The variable resistors are also used to calibrate circuit sections on a board. These are used for either to obtain a precision or [...]
Resistors and How they Work
Resistors were first made by winding thin high resistance alloy wires on a former and then encapsulating it. This method is still used for high wattage resistors. One example is a rheostat, the other that still is used is a wire wound potenmtiometer.
Then we have carbon film, which means a very thin carbon film is [...]
Coils and Transformers for SMPS
Coil Winding Specialist
Coil Winding Specialist
Coil Winding Specialist
Coilcraft, Inc
Coilcraft, Inc
Toroid Inductors
Axial-Radial Coils
EE Core Transformers
Pot Core Trx
Drum Core Coil
High Q Low Cost Difficult to Wind Easy To Mount
Very Low Cost Low Q RF Radiation Easy to Wind
High Power and Q More Pins, Robust Air Gap Adjust Split Bobbin Too [...]
Principles of Semiconductor Devices
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 and material parameters on one hand and the resulting electrical characteristics on the other hand.
Schottky diode current
Metal-Semiconductor contacts
Electrostatic analysis of a p-n diode
Reverse bias breakdown
Optoelectronic devices
Light Emitting [...]
