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
10 Tech Gifts to Buy Your Engineer for Christmas
Here is a list of last minute ideas for making...
eetimes.com
Holiday Movies to Geek Out About
EE Times wants to ensure domestic bliss with a handy...
eetimes.com
Road to Auto Market Paved With Fault-Tolerant SoCs
Data protection and redundancy features implemented across entire SoC designs...
eetimes.com
Boston-Area Engineers to Share Expertise at ESC Boston 2015
In an exciting new session format at ESC Boston 2015,...
eetimes.com
Memory Design Trends in 2014
Memory transitions, increased-density drive design trends: Customers are looking for...
eetimes.com
True 3-D Chips Harness Nanotubes
Stanford University has learned how to stack any number of...
eetimes.com
Top 15 Analog, MEMS & Sensors News From 2014
From faulty MEMS mics to NXP's labor disputes, here are...
eetimes.com
Space Weather Satellite Set for Launch
NOAA's Deep Space Climate Observatory will serve as an early...
eetimes.com
Hackers Go Off-Grid for Power
Hackathon produces designs that could be assembled by villagers with...
eetimes.com
Ten Hot & Cool NASA Innovations
Partnering with industry, NASA has developed new technologies that are...
eetimes.com
The Circle – The Future's Imperfect in the Present Tense
Dystopian novel satirizes mega-Google companies and the modern techie ethos....
eetimes.com
Friday Quiz: S-Parameters
S-Parameters are no longer just for microwave engineers. High-speed digital...
eetimes.com
EEVblog #694 – Mailbag
Mailbag that’s not on a Monday, because Dave has been...
eevblog.com
So Much To Do, So Little Time
2015 will likely be the year of widespread awareness and...
eetimes.com
What Does It Take to Truly Leapfrog With Technology?
In January 2015, Lindsay Craig will be teaching technology workshops...
eetimes.com
Recommended Reads From the Engineer's Bookshelf
Are you wondering what to buy your family and friends...
eetimes.com
Successful With Phones & Drones, Parrot Ponders Farming
Parrot is a 20-year-old startup that has the passion of...
eetimes.com
Power Week: Popular Gaming Consoles' Energy Use Compared
Just in time for the holidays, engineers at the Electric...
eetimes.com
Make This Engineering Museum a Reality
Help turn the first house to have a telephone into...
eetimes.com
Make This Engineering Museum a Reality
Help turn the first house to have a telephone into...
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 +