×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Triac firing problem

Triac firing problem

Triac firing problem

(OP)
Hello, I'm having problem with triac firing and I have no clue what may be.

Please, check the attached link for more details (LTSpice).

When I trigger Vbc phase I get Vab conducting as well. Tried to build a simulation but is not converging yet.
Any help will be appreciated.

Sincerely

https://drive.google.com/file/d/0BwVP4AzXV_MqWkdXc...

RE: Triac firing problem

Can NOT open!

RE: Triac firing problem

Seems to be fine:

Version 4
SHEET 1 1196 680
WIRE 400 -816 400 -864
WIRE 400 -816 320 -816
WIRE 480 -816 400 -816
WIRE 736 -816 736 -864
WIRE 736 -816 656 -816
WIRE 816 -816 736 -816
WIRE 1072 -816 1072 -864
WIRE 1072 -816 992 -816
WIRE 1152 -816 1072 -816
WIRE 320 -640 320 -816
WIRE 400 -640 400 -816
WIRE 480 -640 480 -816
WIRE 656 -640 656 -816
WIRE 736 -640 736 -816
WIRE 816 -640 816 -816
WIRE 992 -640 992 -816
WIRE 1072 -640 1072 -816
WIRE 1152 -640 1152 -816
WIRE -624 -576 -624 -608
WIRE -480 -576 -480 -624
WIRE -368 -576 -368 -624
WIRE -256 -576 -256 -624
WIRE 288 -528 288 -544
WIRE 288 -528 224 -528
WIRE 368 -528 368 -544
WIRE 368 -528 288 -528
WIRE 448 -528 448 -544
WIRE 448 -528 368 -528
WIRE 624 -528 624 -544
WIRE 624 -528 592 -528
WIRE 704 -528 704 -544
WIRE 704 -528 624 -528
WIRE 784 -528 784 -544
WIRE 784 -528 704 -528
WIRE 960 -528 960 -544
WIRE 960 -528 896 -528
WIRE 1040 -528 1040 -544
WIRE 1040 -528 960 -528
WIRE 1120 -528 1120 -544
WIRE 1120 -528 1040 -528
WIRE 896 -496 896 -528
WIRE 224 -480 224 -528
WIRE -624 -464 -624 -496
WIRE -480 -464 -480 -496
WIRE -368 -464 -368 -496
WIRE -256 -464 -256 -496
WIRE 320 -448 320 -544
WIRE 400 -448 400 -544
WIRE 400 -448 320 -448
WIRE 480 -448 480 -544
WIRE 480 -448 400 -448
WIRE 656 -448 656 -544
WIRE 736 -448 736 -544
WIRE 736 -448 656 -448
WIRE 816 -448 816 -544
WIRE 816 -448 736 -448
WIRE 992 -448 992 -544
WIRE 1072 -448 1072 -544
WIRE 1072 -448 992 -448
WIRE 1152 -448 1152 -544
WIRE 1152 -448 1072 -448
WIRE 896 -384 896 -416
WIRE 224 -368 224 -400
WIRE 400 -368 400 -448
WIRE 736 -368 736 -448
WIRE 1072 -368 1072 -448
WIRE 400 -240 400 -288
WIRE 736 -240 736 -288
WIRE 1072 -240 1072 -288
WIRE -656 -160 -656 -192
WIRE -384 -160 -384 -192
WIRE 400 -112 400 -160
WIRE 736 -112 736 -160
WIRE 1072 -112 1072 -160
WIRE -656 -48 -656 -80
WIRE -608 -48 -656 -48
WIRE -384 -48 -384 -80
WIRE -384 -48 -448 -48
WIRE -608 32 -656 32
WIRE -384 32 -448 32
WIRE -656 48 -656 32
WIRE -384 192 -384 32
FLAG -624 -464 0
FLAG -624 -608 Vcc
FLAG -656 -192 Vcc
FLAG -656 48 0
FLAG -480 -464 0
FLAG -480 -624 Vb
FLAG -384 -192 Vb
FLAG -384 192 Gb
FLAG 736 -864 Vb
FLAG -368 -464 0
FLAG -368 -624 Va
FLAG -256 -464 0
FLAG -256 -624 Vc
FLAG 736 -112 Vc
FLAG 400 -864 Va
FLAG 400 -112 Vb
FLAG 1072 -864 Vc
FLAG 1072 -112 Va
FLAG 592 -528 Gb
FLAG 224 -368 0
FLAG 896 -384 0
SYMBOL EXTRA\\BTA16-600BW 816 -592 R0
WINDOW 3 -21 -29 VLeft 2
SYMATTR InstName U1
SYMBOL SBORKA\\OPTO\\MOC3021 -560 -32 R0
SYMATTR InstName U2
SYMBOL EXTRA\\BTA16-600BW 736 -592 R0
WINDOW 3 -22 -26 VLeft 2
SYMATTR InstName U3
SYMBOL EXTRA\\BTA16-600BW 656 -592 R0
WINDOW 3 -29 -26 VLeft 2
SYMATTR InstName U4
SYMBOL res -368 -64 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 330
SYMBOL voltage -624 -592 R0
WINDOW 3 -42 23 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 5 0.0013889 0 0 .0005 0.0083333)
SYMATTR InstName Vdc
SYMBOL res -640 -64 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 300
SYMBOL voltage -480 -592 R0
WINDOW 3 -35 19 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 180 60 0 0 -120)
SYMATTR InstName Vb
SYMBOL res 720 -256 R0
SYMATTR InstName R3
SYMATTR Value 5.8
SYMBOL ind 720 -384 R0
SYMATTR InstName L1
SYMATTR Value 1n
SYMBOL voltage -368 -592 R0
WINDOW 3 -35 19 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 180 60)
SYMATTR InstName Va
SYMBOL voltage -256 -592 R0
WINDOW 3 -35 19 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 180 60 0 0 120)
SYMATTR InstName Vc
SYMBOL EXTRA\\BTA16-600BW 480 -592 R0
WINDOW 3 -21 -29 VLeft 2
SYMATTR InstName U5
SYMBOL EXTRA\\BTA16-600BW 400 -592 R0
WINDOW 3 -22 -26 VLeft 2
SYMATTR InstName U6
SYMBOL EXTRA\\BTA16-600BW 320 -592 R0
WINDOW 3 -29 -26 VLeft 2
SYMATTR InstName U7
SYMBOL res 384 -256 R0
SYMATTR InstName R4
SYMATTR Value 5.8
SYMBOL ind 384 -384 R0
SYMATTR InstName L2
SYMATTR Value 1n
SYMBOL EXTRA\\BTA16-600BW 1152 -592 R0
WINDOW 3 -21 -29 VLeft 2
SYMATTR InstName U8
SYMBOL EXTRA\\BTA16-600BW 1072 -592 R0
WINDOW 3 -22 -26 VLeft 2
SYMATTR InstName U9
SYMBOL EXTRA\\BTA16-600BW 992 -592 R0
WINDOW 3 -29 -26 VLeft 2
SYMATTR InstName U10
SYMBOL res 1056 -256 R0
SYMATTR InstName R5
SYMATTR Value 5.8
SYMBOL ind 1056 -384 R0
SYMATTR InstName L3
SYMATTR Value 1n
SYMBOL res 208 -496 R0
SYMATTR InstName R7
SYMATTR Value 10Meg
SYMBOL res 880 -512 R0
SYMATTR InstName R8
SYMATTR Value 10Meg
TEXT -728 -312 Left 2 !.tran 0 .04 0 1.6667e-04
TEXT -720 -416 Left 2 ;Fontes de Tensão
TEXT -720 -280 Left 2 ;Parâmetros de simulação
TEXT -720 112 Left 2 ;Circuito de disparo
TEXT 280 -848 Left 2 ;Fase AB
TEXT 616 -848 Left 2 ;Fase BC
TEXT 952 -848 Left 2 ;Fase CA

TTFN
FAQ731-376: Eng-Tips.com Forum Policies
[IMG http://tinyurl.com/7ofakss]
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers


Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com: http://www.engineering.com/AskForum/aff/32.aspx

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close