ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Burning out of return(white) side of 120volt rec
by crselectric. 06/14/19 02:15 AM
Video door bell causing chime activation of coil
by JoeTestingEngr. 06/13/19 12:43 PM
Troubleshooting Voltage Drop Across Relay
by gfretwell. 06/09/19 11:49 AM
Apple Recalls Three-Prong Wall Plug Adapters
by Admin. 06/05/19 09:06 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
1 registered members (Scott35), 9 guests, and 15 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Buck Transformer Schematic #127386
06/18/01 08:24 PM
06/18/01 08:24 PM
Scott35  Online Happy OP
Broom Pusher and
Member
Joined: Oct 2000
Posts: 2,720
Anaheim, CA. USA
[Linked Image]

Here's another Isolated Transformer, connected as an Autotransformer - in this case, the connections are Series Subtractive - making it a voltage "Bucking" transformer.
The schematic "Boost Transformer" is very similar, except the connections are made in Series Additive format.
BTW: The "Buck" transformer is a mirrored image of the "Boost", the inputs and outputs are reversed.

FYI: The "PHI" symbol on each schematic represents positions of phase polarity [direction of magnetic flow in core as to direction of currents in windings]. That's the key issue of how and why these Autotransformers [connected as Autotransformers] can do the Buck / Boost thingee [technically speaking [Linked Image]]

Any comments??? [Linked Image]

Scott SET

Scott,

You forgot the // in the link. I took care of it.

Bill

[This message has been edited by Webmaster (edited 06-18-2001).]


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
Tools for Electricians:
Re: Buck Transformer Schematic #127387
06/19/01 05:30 PM
06/19/01 05:30 PM
A
Anonymous
Unregistered

>The "phi" symbol on each schematic represents positions of phase polarity [direction of magnetic flow in core as to direction of currents in windings].
I would like to see the ΓΈ symbol added to the appropriate poles on the single phase transformer diagram you previously posted.

Could you help me out with this?

Re: Buck Transformer Schematic #127388
06/20/01 09:28 PM
06/20/01 09:28 PM
Scott35  Online Happy OP
Broom Pusher and
Member
Joined: Oct 2000
Posts: 2,720
Anaheim, CA. USA
Dspark,

I'll add them, then resubmit to the existing topic[s] under the same names/message bodies.

Scott SET


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
cookcc
cookcc
California ,Long Beach
Posts: 28
Joined: May 2007
Show All Member Profiles 
Top Posters(30 Days)
Khombo 2
Popular Topics(Views)
255,744 Are you busy
191,709 Re: Forum
181,487 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.015s Queries: 14 (0.004s) Memory: 0.9514 MB (Peak: 1.0763 MB) Zlib enabled. Server Time: 2019-06-19 01:14:06 UTC