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Why germanium controlled rectifiers are not used instead of silicon controlled rectifiers?
The first solid state four layer thyristors made were indeed made of germanium and therefor could be called "germanium controlled rectifiers" (although this name was never used in the literature, they were just called thyristors). But when it became practical in the early 1960s to make solid state devices using silicon, the higher operating junction temperature and the ability to self passivate junctions in silicon devices soon made germanium devices obsolete especially for high power applications (which include many of the applications of solid state four layer thyristors).The term thyristor was coined originally for these devices as they were seen as a solid state version of the gas filled thyratron tube. The idea of calling them "controlled rectifiers" only came years later when silicon had replaced germanium for most purposes in solid state devices.
What is the use of PN diode?
there are many uses. one major use i remember is in rectification i.e convert ac to dc For switch operation
Do broadcast and cable television operators use long-haul applications?
Broadcast and cable television operators use long-haul applications
Why do applications use up a lot of battery life?
It takes more energy when the applications are running.
What is a rectifier assembly?
A "Rectifier" is an electrical component that changes AC current to DC current by blocking current in one direction. High power rectifiers may be "assembled" from multiple individual component rectifiers to handle higher power or larger voltages.
What are applications of rectifier?
What are applications of rectifiers
What are the applications of precision rectifiers?
Precision rectifiers are used in the design of instrumentation systems.
What is difference between single phase and three phase rectifiers?
Single phase rectifiers are suitable to power loads of up to only about 15 kW. For higher power demands, three phase rectifiers are preferred for the following reasons: Higher dc voltage, better TUF, better input power factor, less ripple content in the output current - therefore giving better load performance and a smaller size of filter circuit parameters because of the higher ripple frequency.
What are the industrial applications for half wave and full wave rectifiers meaning where are they used in industry?
Half- and full-wave rectifiers are used to convert AC into DC. That is the primary use of the rectifier in industrial applications. AC is used across the power grid, but to use electricity for welding, electroplating, electrorefining (of metal) and as a DC source for motors with special speed controls, the AC must be changed (rectified) to DC.
Is transistor a rectifier?
there are two diodes there but to use them as rectifiers never
What are the differecne between chopper and rectifiers?
for controlling a motor if it is in a important application we use rectifiers because the ripple factor of the chopper is very high in comparison with choppers
What are the Advantages and disadvantages of rectifiers?
There are different types of rectifiers including silicon controlled rectifiers. Advantages for this type of rectifier include that it can switch high voltages and is simple to control. Disadvantages include it cannot be turned off easily.
Where can be rectifiers be used?
One place is in telecommunication racks, where AC power needs to be converted to DC to power the telecommunication equipment. And their are plenty of other applications as well.
The purpose of 240V to 12V rectifiers?
The purpose of rectifiers is to change AC to DC.
Where can rectifiers be bought for a good price?
Maplin offer affordable rectifiers. Rectifiers are used to convert alternating current to direct current. The process is also known as rectification. Rectifiers are often found serving as components of DC power supplies.
What is a polarization rectifier unit?
Chemical Processes often have large power rectifiers as their primary source of DC Power. If these rectifiers are turned off, either for maintenance or a malfunction, there is a danger to the hardware of the chemical process. To solve this problem, standby rectifiers are installed in parallel with the main rectifiers. These rectifiers, known as Polarisation Rectifiers, pass electric current through the process and prevent damage....NEOWATT ENERGY
What is the purpose of rectifiers?
voltage
