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Download as PDF; Printable version; ... Silicon-controlled rectifier; SUS: Silicon unilateral switch ... "Diagrams charts and tables for electrotechnology, Part 2 ...
SCR 4-layer (p-n-p-n) diagram. A silicon controlled rectifier or semiconductor controlled rectifier is a four-layer solid-state current-controlling device. The name "silicon controlled rectifier" is General Electric's trade name for a type of thyristor.
High voltages inputted to every OR gate are reduced by V F (~0.6 V in silicon, ~0.3 V in germanium), while low voltages inputted to every AND gate are raised by V F. Source resistance A voltage source's output resistance and the subsequent gate's pull-up/down resistor form a voltage divider that weakens voltage levels.
The two types of diode are in fact constructed in similar ways and both effects are present in diodes of this type. In silicon diodes up to about 5.6 volts, the Zener effect is the predominant effect and shows a marked negative temperature coefficient. Above 5.6 volts, the avalanche effect dominates and exhibits a positive temperature coefficient.
Common circuit diagram symbols (US ANSI symbols) An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may ...
Band diagram for metal-semiconductor junction at zero bias (equilibrium). Shown is the graphical definition of the Schottky barrier height, Φ B, for an n-type semiconductor as the difference between the interfacial conduction band edge E C and Fermi level E F.
A rectifier used in high-voltage direct current (HVDC) power transmission systems and industrial processing between about 1909 to 1975 is a mercury-arc rectifier or mercury-arc valve. The device is enclosed in a bulbous glass vessel or large metal tub.
The 1N4148 was registered at JEDEC in 1968 as a silicon switching signal diode for military and industrial applications. [3] It was second-sourced by many manufacturers; Texas Instruments listed their version of the device in an October 1966 data sheet. [4] The 1N914 and 1N4148 have an enduring popularity in low-current applications. [5]