Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

How do I determine the current rating for a pulse transformer?

Status
Not open for further replies.

manaboutdog

Newbie level 4
Joined
Sep 10, 2008
Messages
6
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,330
Hi there,

I'm intending to use a pulse transformer (1:1:1) to drive a reverse parallel Thyristor configuration. I need to be able to supply ~1.5A to the gate of the thyristor, but most of the specs I've seen do not directly quote a current rating. I'd like to use as small a transformer as possible due to space constraints. Is there a straight forward way of working this out, short of building it with multiple transformers to verify performance?

The 77205C part from the following spec is one that I'm considering if suitable http://www.murata-ps.com/data/magnetics/kmp_772.pdf

Regards

M
 

FvM

Super Moderator
Staff member
Joined
Jan 22, 2008
Messages
47,854
Helped
14,119
Reputation
28,495
Reaction score
12,800
Trophy points
1,393
Location
Bochum, Germany
Activity points
277,754
Although there's no explicite current rating, all parameters of interest are in the datasheet, presuming the trigger pulses are short enough not to cause considerable power dissipation. Unter this assumption winding resistance and possibly leak inductance and of course the driver voltage are ruling the achievable trigger current.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top