# Yahoo Web Search

1. ### What is the energy efficiency of a SCR ?

For a rough calculation: Drop across a SCR is about 1 volt. If you are switching 120 VAC...

1 Answers · Science & Mathematics · 30/09/2008

2. ### how to control high voltage in SCR ?

Do you mean phase control of high voltage power or overvoltage protection of SCR ? Phase control basically uses a capacitor to delay the timing of...

2 Answers · Science & Mathematics · 18/01/2010

3. ### How does the gate turn off switch in Silicon Controlled Rectifier( SCR ) work?

... answer is correct and technical. How about a down to earth explanation. SCR 's cannot be turned off with a gate once turned on by...

4 Answers · Science & Mathematics · 04/11/2006

4. ### scr problem?

Proper polarity applied between the Anode and Cathode And a tirgger voltage applied to the gate

2 Answers · Science & Mathematics · 22/07/2008

5. ### The capacitor is used to delay the angle of the SCR . Explain how this works?

... we apply this lagging reduced amplitude sinewave to the SCR Gate firing circuit, it will trigger at a later angle of the...

3 Answers · Science & Mathematics · 08/10/2010

6. ### How to know dc voltage and rms voltage of an SCR output across a load ?

If you are asking about a single SCR operating as a half-wave controlled rectifier with a resistive load, the...

4 Answers · Science & Mathematics · 19/08/2011

7. ### Need help in Electronics about SCR ?

...to give a good description of using SCRs. You would not use an SCR for AC because they only conduct in one direction. Triacs are similar...

1 Answers · Science & Mathematics · 07/10/2009

8. ### The commutation cycle of a GE SCR system (turn-on, turn-off) is repeated how many times per second.?

it can be repeated as much as is permitted by its turn on+turn off time and is dependant on the exact model of SCR . refer the detailed dtat sheet of the SCR .

2 Answers · Science & Mathematics · 26/05/2012

9. ### why SCR has gate at p type semiconductor?

Because that is what an SCR is. If it were different it would be called another name.

2 Answers · Science & Mathematics · 29/08/2012

10. ### i can't get my 4013 flip-flop ic to lock on an SCR what can you tell me?

... the Q of the FF is tied to the gate of the SCR , then the cathode of the SCR must be tied to the ground of the...

3 Answers · Science & Mathematics · 22/04/2011