Quantcast Diode Switch

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
1-26 Figure 1-23.—Different types of crystal and metallic rectifiers. There are many known metal-semiconductor combinations that can be used for contact rectification. Copper oxide and selenium devices are by far the most popular. Copper oxide and selenium are frequently used over other types of metallic rectifiers because they have a large forward current per unit contact area, low forward voltage drop, good stability, and a lower aging rate. In practical application, the selenium rectifier is used where a relatively large amount of power is required. On the other hand, copper-oxide rectifiers are generally used in small-current applications such as ac meter movements or for delivering direct current to circuits requiring not more than 10 amperes. Since metallic rectifiers are affected by temperature, atmospheric conditions, and aging (in the case of copper oxide and selenium), they are being replaced by the improved silicon crystal rectifier. The silicon rectifier replaces the bulky selenium rectifier as to current and voltage rating, and can operate at higher ambient (surrounding) temperatures. Diode Switch In addition to their use as simple rectifiers, diodes are also used in circuits that mix signals together (mixers), detect the presence of a signal (detector), and act as a switch "to open or close a circuit." Diodes used in these applications are commonly referred to as "signal diodes." The simplest application of a signal diode is the basic diode switch shown in figure 1-24.


Electrical News
MINI Giving Drivers a Peek at 'Augmented Reality'
Although most drivers have yet to embrace the idea of...
eetimes.com
eevBLAB #9 – Meet Dave
Meet Dave2, the first EEVblog employee....
eevblog.com
Qualcomm to Leverage Monolithic 3D for Smartphones
Qualcomm is looking to leverage Monolithic 3D IC technology to...
eetimes.com
Full Human Head Transplant May Be Closer Than You Think
Suddenly, some of the things we read in science fiction...
eetimes.com
Automotive Chip Reliability: A Matter of Design Methods
Up to 90% of all innovations today are generated through...
eetimes.com
Paper Memory Ready to Roll
Researchers at the Finish VTT Technical Research Centre have demonstrated...
eetimes.com
Top 10 Robotics Projects on Kickstarter
EBN takes a look at the newest robots coming down...
eetimes.com
Moore's Law: Dead or Alive
Moore's law is still alive and kicking after 50 years,...
eetimes.com
'Connected Home' Key to Intel's Lantiq Deal
Intel has formed a freshly minted "Connected Home Division," which...
eetimes.com
When Coding Errors Can Kill
Under a mild-sounding title, software safety expert Sean Beatty will...
eetimes.com
When Coding Errors Can Kill
Under a mild-sounding title, software safety expert Sean Beatty will...
eetimes.com
Friday Quiz: Power Circuits & Measurements
Learn from power-integrity expert Steve Sandler through his thoughtful questions...
eetimes.com
Vision for Machinery Becoming More Affordable
Machines that can see and act on that information are...
eetimes.com
Tiny Pacemaker for Tiny People
Micropacemaker is but another example of the how the trend...
eetimes.com
Rocket Fuels Student Space Dreams
Boston students hope to break records by launching a homegrown...
eetimes.com
Medtronic Wins EU Approval for Leadless Pacemaker
The approval comes a year and a half after St....
eetimes.com
Five Fascinating Power Facts About Supercomputers
Thought you knew everything about supercomputers - those almost unimaginably...
eetimes.com
EEVblog #734 – Giroptic 360cam Kickstarter Prototype
Dave takes a quick look at the first run Kickstarter...
eevblog.com
How Tesla Disrupts Infotainment Supply Chain
Automaker Tesla moves away from Tier-One designers on infotainment and...
eetimes.com
TSMC Cuts Capex by $1 Billion
Taiwan Semiconductor Manufacturing Co. (TSMC) is cutting its planned capital...
eetimes.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +