Title:
MULTIOUTPUT-TYPE POWER-SUPPLY APPARATUS
Document Type and Number:
Japanese Patent JP3145307
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a multioutput-type power-supply apparatus whose high reliability to maintain the supply of electric power to a load is ensured even when the failure of an output is caused in a power-supply body and which can be made small, lightweight and low-cost.
SOLUTION: An auxiliary power-supply circuit 30 is installed in such a way that it is provided with a power-supply body 1 which outputs a plurality of output voltages V1 to V3 via a plurality of body channels Ch1 to Ch3 and that it is provided with one auxiliary channel Ch4 which is connected in parallel with the respective body channels Ch1 to Ch3. When any out of the output voltages V1 to V3 of the power-supply body 1 is dropped, the auxiliary power- supply circuit 30 outputs set voltages V1 to V3 via the auxiliary channel Ch4. A multioutput-type power-supply apparatus may be constituted in such a way that the set voltages are output from the auxiliary channel Ch4 via a step-down circuit or that a reference-voltage variable circuit is installed so as to be added to the auxiliary power-supply circuit and that a reference voltage which decides the output voltage of the auxiliary power-supply circuit is made variable by the reference-voltage variable circuit.
Inventors:
Masayasu Ohsaki
Isao Shimizu
Isao Shimizu
Application Number:
JP14439996A
Publication Date:
March 12, 2001
Filing Date:
June 06, 1996
Export Citation:
Assignee:
FDK Co., Ltd.
International Classes:
H02J1/00; H02J1/10; H02M3/28; (IPC1-7): H02J1/00; H02M3/28
Domestic Patent References:
| JP562795U |
Attorney, Agent or Firm:
Kensuke Isshiki (2 outside)
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