Quantcast Figure 3-19.Characteristic curve for an SCR

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
3-22 Figure 3-19.—Characteristic curve for an SCR. The effect of a gate signal on the firing of an SCR is shown in figure 3-20. Breakdown of the center junction can be achieved at speeds approaching a microsecond by applying an appropriate signal to the gate lead, while holding the anode voltage constant. After breakdown, the voltage across the device is so low that the current through it from cathode to anode is essentially determined by the load it is feeding. Figure 3-20.—SCR characteristic curve with various gate signals. The important thing to remember is that a small current from gate to cathode can fire or trigger the SCR, changing it from practically an open circuit to a short circuit. The only way to change it back again (to commutate it) is to reduce the load current to a value less than the minimum forward-bias current. Gate current is required only until the anode current has completely built up to a point sufficient to sustain


Electrical News
EEVblog #657 – Maker Faire 2014 Interviews
Some interviews from the 2014 Sydney Mini Maker Faire at...
eevblog.com
The Internet of Things Versus Slumlords
Smart thermostats are not only for the well-to-do. One group...
eetimes.com
IBM Watson Speeds Drug Research
IBM Watson moves from supplying known answers to tough questions...
eetimes.com
Samsung Funds III-V FinFETs in US Lab
Samsung is funding Penn State researchers working to fabricate III-V...
eetimes.com
LG, Samsung Debut Smartwatches, Apple Lurks
LG's G Watch R and Samsung's Gear S do little...
eetimes.com
Imagination Takes On Raspberry Pi
Imagination Technologies has developed its own version of Raspberry Pi,...
eetimes.com
California Smartphone Kill-Switch Law: What It Means
Do you understand the consequences of California's new smartphone anti-theft...
eetimes.com
9 Insights From Hot Interconnects
Facebook described its network switch, while experts picked apart flaws...
eetimes.com
Microchip in Pursuit of CSR
Microchip confirmed Thursday that it has had preliminary mutual discussions...
eetimes.com
Are There Marsquakes on Mars?
A 2016 mission will investigate the stuff under the surface...
eetimes.com
Friday Quiz: Forgotten T&M Companies
Remember the names of these test-equipment companies? Most are long...
eetimes.com
Rohm Opens MEMS Foundry Operation
Rohm Co. Ltd. created a foundry business at the six-inch...
eetimes.com
Touch Taiwan: Display Vendors' 10 Bold Forecasts
Display suppliers are in the know. The companies exhibiting at...
eetimes.com
Power Week: RF Charging Startup & Dialog Semi Team Up for Over-the-Air Power
This week, "over-the-air" power got a boost when RF charging...
eetimes.com
9 Notorious Automotive Electronics Recalls
It's been a banner year so far for automotive recalls,...
eetimes.com
Indoor Navigation: The Next Big Thing
Custom system-on-chip from parent company mCube enables Ten Degrees to...
eetimes.com
New UART to WIFI chipset will unleash low cost Internet of Things
WiFi infrastructure is everywhere which makes easier to make network...
wsnblog.com
Data Centers May Ride on ASICs
Firebox, a research prototype in the works at UC Berkeley,...
eetimes.com
Product Compatibility Is a Constant Dilemma
Because most new products are based on previous ones, engineers...
eetimes.com
White Goods Consolidation Drives Power Deals
The power semiconductor industry has seen two key announcements this...
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 +