Title:
TRANSFORMER POWER SUPPLY CIRCUIT
Document Type and Number:
Japanese Patent JP2020027541
Kind Code:
A
Abstract:
To provide a transformer power supply circuit which can reduce fluctuation of an output current even if an input voltage is increased.SOLUTION: A transformer power supply circuit 1-1 comprises: a magnetic flux controlling transformer 10 having a first magnetic circuit 11 and a second magnetic circuit 12 having the same shape and the same characteristics, a first input coil 13 wound commonly around the first magnetic circuit 11 and the second magnetic circuit 12, and second output coils 14, 15 wound around the first magnetic circuit 11 and the second magnetic circuit 12 by the same numbers; and a control circuit 20 having a bridge rectification circuit 40-1 and a first current limit circuit 30-1 connected to an output of the first magnetic circuit 11, a current regulation register 41 connected in parallel to the first current limit circuit 30-1, a bridge rectification circuit 40-2 and a second current limit circuit 30-2 connected to an output of the second magnetic circuit 12, and a current regulation register 42 connected in parallel to the second current limit circuit 30-2.SELECTED DRAWING: Figure 12
Inventors:
KAWAGUCHI MASATOSHI
MATSUKI KAZUNARI
SUGAYA AKIE
MATSUKI KAZUNARI
SUGAYA AKIE
Application Number:
JP2018153177A
Publication Date:
February 20, 2020
Filing Date:
August 16, 2018
Export Citation:
Assignee:
MAKISEN SERVICE CO LTD
SHICHISAI LLC
SHICHISAI LLC
International Classes:
G05F1/56
Domestic Patent References:
| JP2018092851A | 2018-06-14 | |||
| JP2010183730A | 2010-08-19 | |||
| JP2007234415A | 2007-09-13 | |||
| JPS54137839U | 1979-09-25 |
Attorney, Agent or Firm:
Hidehiko Komatsu