Title:
SWITCHING POWER SUPPLY
Document Type and Number:
Japanese Patent JP3236506
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a switching power supply which can provide a large allowable input voltage width with which stabilization is possible.
SOLUTION: This power supply 1 comprises a signal generating means 14 to generate a switching signal, a power converting means 19 for converting an input DC signal into a DC signal by switching it on the basis of the switching signal and a first signal control means 17 for controlling any one of the frequency and duty ratio of the switching signal of the signal generating means 14 stabilizing the converted DC voltage to a predetermined voltage. In this case, a second signal control means 18 is also provided to control the other of the frequency and duty ratio of the signal generating means 14 depending on the voltage value of the input DC signal.
Inventors:
Akira Matsumoto
Application Number:
JP13130596A
Publication Date:
December 10, 2001
Filing Date:
April 26, 1996
Export Citation:
Assignee:
Nagano Japan Radio Co., Ltd.
International Classes:
H02M3/28; H02M7/06; H03K7/08; (IPC1-7): H02M3/28; H02M7/06; H03K7/08
Domestic Patent References:
| JP255574A | ||||
| JP59144366A | ||||
| JP63167672A | ||||
| JP5276750A | ||||
| JP5344730A | ||||
| JP4180U |
Attorney, Agent or Firm:
Shinji Sakai