Title:
BLOCKING OSCILLATION TYPE SWITCHING REGULATOR
Document Type and Number:
Japanese Patent JPS6062869
Kind Code:
A
Abstract:
The invention relates to a blocking oscillator switched mode power supply which is supplied with a primary voltage Up obtained by rectification of the AC line voltage. Because the line voltage varies, the secondary voltage which supplies electrical equipment is stabilized by means of a switched mode power supply. The maximum power from the supply generally depends on the primary voltage Up. The present invention has the objective of eliminating this disadvantage of the known switched mode power supplies. To this end, according to the invention, a correction circuit actuated via a voltage divided is provided, the voltage divider being connected to the primary voltage Up. The correction circuit is designed so that it keeps the breakpoint of the secondary current Is constant. It is thus possible to economize on the normally required overdimensioning of certain parts of the circuit, especially of the transformer, converter, and switching transistor, while on the other hand the invention can be realized at little cost.
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Inventors:
GIYUNTAA PEERUTO
MIHIAERU RENTSU
MIHIAERU RENTSU
Application Number:
JP17139284A
Publication Date:
April 11, 1985
Filing Date:
August 17, 1984
Export Citation:
Assignee:
SIEMENS AG
International Classes:
H02M3/338; H02M3/335; (IPC1-7): H02M3/338
Attorney, Agent or Firm:
Tomimura Kiyoshi