Question and answer
Difference between triac and diac
This question has not been answered. Can you answer it? Please add your answer below ...
Question
Asked 8/23/2009 10:17:07 AM
Updated 8/23/2009 4:53:36 PM
2 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments
The DIAC is a trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily. When this occurs, the resistance of the diode abruptly decreases, leading to a sharp decrease in the voltage drop across the diode and, usually, a sharp increase in current flow through the diode. The diode remains "in conduction" until the current flow through it drops below a value characteristic for the device, called the holding current. Below this value, the diode switches back to its high-resistance (non-conducting) state.

A TRIAC is an electronic component approximately equivalent to two silicon-controlled rectifiers (SCRs/thyristors) joined in inverse parallel (paralleled but with the polarity reversed) and with their gates connected together. This results in a bidirectional electronic switch which can conduct current in either direction when it is triggered and thus doesn't have any polarity. It can be triggered by either a positive or a negative voltage being applied to its gate electrode. Once triggered, the device continues to conduct until the current through it drops below a certain threshold value, the holding current, such as at the end of a half-cycle of alternating current (AC) mains power.
Added 8/23/2009 10:52:54 AM
Thank you for using Weegy. Ask us anything 24/7! Be sure to tell all your friends.
Added 8/23/2009 4:53:36 PM
Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
SCR
Weegy: do you have a question for me? I don't know what SCR means. (More)
Question
Expert Answered
Asked 8/23/2009 10:14:26 AM
0 Answers/Comments
SCR
Weegy: do you have a question for me? I don't know what SCR means. User: Difference between triac (More)
Question
Updated 8/23/2009 4:54:28 PM
2 Answers/Comments
A silicon-controlled rectifier (or semiconductor-controlled rectifier) is a four-layer solid state device that controls current. The name "silicon controlled rectifier" or SCR is General Electric's trade name for a type of thyristor. The SCR is controlled by a logic gate signal.
Added 8/23/2009 10:59:31 AM
Thank you for using Weegy. Ask us anything 24/7! Be sure to tell all your friends.
Added 8/23/2009 4:54:28 PM
21,730,645 questions answered
Popular Conversations
Reduce the fraction 36/48 to its lowest terms. A. 1 1/4 B. ...
Weegy: C. 6/8 User: 15 ÷ 6 2/3 = ? A. 2 3/4 B. 100 1/4 C. 2 1/4 D. 100 Weegy: C. 6/8
7/27/2015 7:22:48 AM| 5 Answers
Write the equation of the line that is parallel to the line whose ...
Weegy: The equation of a vertical line that passes through the point ( 4, 4) is x = -4. User: What is the equation ...
7/27/2015 7:50:46 AM| 3 Answers
A tile factory earns money by a flat fee for delivery and a sales ...
Weegy: At 25 cents per tile, the sales price of 10,000 units is 10,000 * $0.25 = $2500 Since the factory got $3000, ...
7/27/2015 11:13:44 AM| 3 Answers
Which one of the following sentences contains an object pronoun? ...
Weegy: The sentence that contains an object pronoun is: Jim accused her of stealing the picture. User: Complete ...
7/26/2015 12:22:54 PM| 2 Answers
Adverbs can modify all of the following except A. verbs. B. ...
Weegy: Adjectives modify nouns. User: Owen will need to take a nap _______ going to the concert. A. Before B. ...
7/26/2015 12:40:32 PM| 2 Answers
define team cohesion?
Weegy: Cohesion (noun) 1: the act or state of sticking together tightly; especially : unity 2 : union between ...
7/26/2015 8:17:08 PM| 2 Answers
Weegy Stuff
S
1
L
Points 769 [Total 1280]| Ratings 1| Comments 759| Invitations 0|Offline
S
P
C
L
P
L
1
P
P
1
P
1
P
Points 406 [Total 9940]| Ratings 2| Comments 366| Invitations 2|Online
S
L
L
Points 295 [Total 8495]| Ratings 5| Comments 245| Invitations 0|Offline
S
Points 158 [Total 158]| Ratings 0| Comments 158| Invitations 0|Offline
S
Points 152 [Total 152]| Ratings 1| Comments 142| Invitations 0|Offline
S
1
L
L
Points 74 [Total 8454]| Ratings 0| Comments 74| Invitations 0|Offline
S
Points 57 [Total 57]| Ratings 0| Comments 57| Invitations 0|Offline
S
Points 50 [Total 50]| Ratings 3| Comments 20| Invitations 0|Offline
S
Points 40 [Total 40]| Ratings 2| Comments 20| Invitations 0|Offline
S
Points 13 [Total 108]| Ratings 1| Comments 3| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.