Go to GlobalSpec.com Home
Newsletter   FREE GlobalSpec e-Newsletters
Receive the latest news, trends, and technology relevant to your work.
(See Titles)

Active Magnetic Bearings (AMB)

 

 

Active magnetic bearings (AMB) require a specialized control and software. The control system creates the possibility of recording bearing forces and rotor displacements that can be used to monitor process parameters. This information can be used to adjust and optimize performance due to process changes. Active magnetic bearings have higher stiffness and damping characteristics than similar size passive bearings. The control current for active magnetic bearings can be calculated by taking the square of the rotor-stator gap.

Products & Services
Magnetic bearings use an electromagnet to provide noncontacting, friction-free motion in rotary applications. Search by Specification | Learn more about Magnetic Bearings
Specialty thyristors are specialty or proprietary products and accessories related to thyristors. Learn more about Specialty Thyristors
Thyristors are a class of four-layer (PNPN) semiconductor devices that act as switches, rectifiers, or voltage regulators. Search by Specification | Learn more about Thyristors
Quadracs are a special type of thyristor which combines a diac and a triac in a single package. The diac is the triggering device for the triac. Search by Specification | Learn more about Quadracs
Diacs are bi-directional diodes that switch AC voltages and trigger silicon controlled rectifiers (SCRs) and triacs. Except for a small leakage current, diacs do not conduct until the breakover voltage is reached. Search by Specification | Learn more about Diacs
Product Announcements
American Microsemiconductor, Inc. - Diverse Selection of Semiconductors from AMS
SEMICONDUCTOR BUYING SHOULD NOT TAKE TIME, MONEY, OR ENERGY. USE THE AMERICAN MICROSEMICONDUCTOR YAHOO! STORE FOR PURCHASING. (read more)
American Microsemiconductor, Inc. - ECG Semiconductors (ECG)
ECG semiconductors were originally intended for the replacement, hobbyist, and experimental markets and in time found applications in industrial repair and maintenance departments. (read more)
American Microsemiconductor, Inc. - Programmable Unijunction Transistor known as PUT
(PUT) Programmable Unijunction Transistor from American Microsemiconductor, Inc. Programmable Unijunction Transistor - The PUT is similar to standard Unijunction Transistor except that the breakdown... (read more)
American Microsemiconductor, Inc. - AMS: Unijunction Transistor (UJT)
Unijunction Transistor (UJT) from American Microsemiconductor. The unijunction transistor (UJT) is a three terminal, single junction device with characteristics very different from the conventional 2... (read more)
American Microsemiconductor, Inc. - Silicon Controlled Rectifier (SCR) by AMS
The Silicon Controlled Rectifier (SCR) is simply a conventional rectifier controlled by a gate signal. With over 17,000,000 electronic components sitting on our warehouse shelves we can almost... (read more)
American Microsemiconductor, Inc. - We have your Triacs
A triac is a electronic bidirectional switch (A bidirectional SCR) which can conduct current in either direction(AC) when it is triggered. With over 17,000,000 electronic components sitting on our... (read more)
American Microsemiconductor, Inc. - Unijunction Transistors (UJT's) from AMS
Unijunction Transistor (UJT) from American Microsemiconductor. The unijunction transistor (UJT) is a three terminal, single junction device with characteristics very different from the conventional 2... (read more)
American Microsemiconductor, Inc. - Diacs - Bidirectional trigger diodes by AMS
The diac is a bidirectional trigger diode which is designed specifically to trigger a triac or SCR. (read more)
American Microsemiconductor, Inc. - Bridge Rectifier, Single & Three Phase Rectifiers
AMERICAN MICROSEMICONDUCTOR supplies a wide range of bridges,both single phase and three phase. Bridges are mainly used to rectify ac to dc. We supply bridges at voltages from 50 Volts to 5kV and in... (read more)
 
Topics of Interest
The thyristor family of semiconductors consists of several very useful devices. The most widely used of this family are silicon controlled rectifiers (SCRs), triacs, sidacs, and diacs. In many... (Read More)
Gating, latching, and holding currents of thyristors are some of the most important parameters. These parameters and their interrelationship determine whether the SCRs and triacs will function... (Read More)
A. K. Chattopadhyay, Ph.D., Electrical Engg. Department, Bengal Engineering & Science University, Shibpur,, Howrah, India 18.1 Introduction A power electronic ac ac converter, in... (Read More)
4 Turn-Off Performances There are three ways to turn the thyristor off. Any thyristor structure can be turned-off if cathode-anode bias reduces to the value at which the cathode-anode current is... (Read More)
Due to high-volume production techniques, thyristors are now priced so that almost any electrical product can benefit from electronic control. A look at the fundamentals of SCR and triac phase... (Read More)
See more product announcements for Magnetic Bearings
Plastic Bushing

Plastic Bushing
Engineered Plastic Products Corporation


New MRP-SL Bearing is Squeak-Free

New MRP-SL Bearing is Squeak-Free
Polygon Company


Plastic & Rubber Fillers/Extenders

Plastic & Rubber Fillers/Extenders
Eco-Shell, Inc.


11 See more product announcements for Magnetic Bearings