Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POWER SOURCE OUTPUT CONTROL TRANSFORMER AND SWITCHING POWER SUPPLY
Document Type and Number:
Japanese Patent JPH03261117
Kind Code:
A
Abstract:

PURPOSE: To enlarge the controllable range of a power source output transformer by coupling the four magnetic legs of an orthogonal saturable reactor transformer magnetically and thermally with a U-shaped core.

CONSTITUTION: This has a four-leg core 2, which has four legs, and a U-shaped core 2, and a control winding Nc is wound on the two legs of the four-leg magnetic pole core 1, and a primary winding N1 and a secondary winding N2 are wound on one side of the U-shaped core 2 so that the primary winding N1 may be located on the side near to the top of the U-shaped core. And, the tops of the four legs and the top of the U-shaped core are coupled magnetically and thermally so that the winding directions of the winding Nc and the primary winding N1 may be perpendicular. Hereby, the inductance controllable range (that is, the controllable range of output voltage) of the winding part controlled by control currents can be enlarged.


Inventors:
YASUMURA MASAYUKI
Application Number:
JP5803290A
Publication Date:
November 21, 1991
Filing Date:
March 12, 1990
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SONY CORP
International Classes:
H01F30/00; H01F29/14; H02M3/28; (IPC1-7): H01F31/00; H02M3/28