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| Dec 3, 2009 |
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Hardware >
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ALSO CALLED:
Components,
Electrical Components,
Electronic Devices,
Diacs,
Thyristors,
Discrete Components,
Passive Devices,
Triacs,
Passive Components,
Active Components,
Active Devices
DEFINITION: A thyristor is a four-layer semiconductor device, consisting of alternating P type and N type materials (PNPN). A thyristor usually has three electrodes: an anode, a cathode, and a gate (control electrode).The most common type of thyristor is the silicon-controlled rectifier (SCR). When the cathode is negatively charged relative to the anode, no current flows until a pulse is applied to the gate. Then
Definition continues below.
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Electronic Components Multimedia
(View All Report Types)
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2 Matches
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Green IT Through Better Hardware Utilization
sponsored by IBM
VIDEO:
This videocast highlights how to go green in your data center with better hardware utilization. Watch as industry pro David Payne discusses some of the challenges of this approach as well as how to start reducing energy consumption at the hardware level.
Posted: 01 Jul 2009 | Premiered: 01 Jul 2009
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Remote I/O: What You Should Know before Using Remote I/O
sponsored by AutomationDirect
VIDEOCAST:
In this video, learn some introductory facts about remote I/O, whether remote or expansion I/O is the more cost-effective solution for your organization, and how AutomationDirect's hardware can meet your remote I/O needs.
Posted: 14 Nov 2008 | Premiered: 14 Nov 2008
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ELECTRONIC COMPONENTS DEFINITION (continued):
A thyristor is a four-layer semiconductor device, consisting of alternating P type and N type materials (PNPN). A thyristor usually has three electrodes: an anode, a cathode, and a gate (control electrode).The most common type of thyristor is the silicon-controlled rectifier (SCR). When the cathode is negatively charged relative to the anode, no current flows until a pulse is applied to the gate. Then the SCR begins to conduct, and continues to conduct until the voltage between the cathode and anode is reversed or reduced below a certain threshold value. Using this type of thyristor, large amounts of power can be switched or controlled using a small triggering current or voltage.Thyristors are used in motor speed controls, light dimmers, pressure-control systems, and liquid-level regulators. Electronic Components definition sponsored by SearchCIO-Midmarket.com, powered by WhatIs.com an online computer dictionary
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