Title:
POWER SUPPLY CONTROLLER AND CONTROL METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2019134500
Kind Code:
A
Abstract:
To provide a power supply controller capable of controlling simultaneous drop of voltages of electricity supplied to a plurality of loads, and controlling the drop of the voltage while a ratio is kept.SOLUTION: A power supply controller 10 for supplying electricity to a plurality of loads 12 comprises: a plurality of DC-DC converters 16 in a synchronous rectifying system, which adjusts power supply voltage and supplies it to the loads 12; a plurality of reference voltage circuits 18 for outputting reference voltage Vr; a common reference voltage circuit 38 for outputting common reference voltage Vrc; a comparison circuit 20 for outputting a signal corresponding to a difference between feedback voltage Vfb obtained by dividing output voltages V1, V2 and V3 of the DC-DC converter 16, and the reference voltage Vr or the common reference voltage Vrc; and a common reference voltage circuit control section 40 for controlling the common reference voltage circuit 38 so that the common reference voltage Vrc drops when input to the comparison circuit 20 is switched from the reference voltage Vr to the common reference voltage Vrc.SELECTED DRAWING: Figure 1
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Inventors:
OKAMOTO ATSUSHI
Application Number:
JP2018012148A
Publication Date:
August 08, 2019
Filing Date:
January 29, 2018
Export Citation:
Assignee:
FANUC LTD
International Classes:
H02M3/155
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Takayuki Chima
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Toru Sekiguchi
Toshiyuki Miyadera
Takayuki Chima
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Toru Sekiguchi