Invention Grant
- Patent Title: Switching power-supply apparatus including switching elements having a low threshold voltage
- Patent Title (中): 开关电源设备包括具有低阈值电压的开关元件
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Application No.: US13009892Application Date: 2011-01-20
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Publication No.: US08837174B2Publication Date: 2014-09-16
- Inventor: Tatsuya Hosotani
- Applicant: Tatsuya Hosotani
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2010-018547 20100129
- Main IPC: H02M3/335
- IPC: H02M3/335 ; H02M1/00
Abstract:
In a switching power-supply apparatus, a primary-side power converter circuit includes a half bridge system and a synchronous rectifier circuit is provided as a rectifier circuit of a secondary-side power converter circuit. An on time ratio of the on time of a first switching element to the on time of a second switching element is controlled so as to provide an operation mode in which energy is regenerated from the secondary side to the primary side when the load is light.
Public/Granted literature
- US20110188269A1 SWITCHING POWER-SUPPLY APPARATUS Public/Granted day:2011-08-04
Information query
IPC分类:
