Invention Grant
- Patent Title: Step-down switching DC-DC converter
- Patent Title (中): 降压型开关DC-DC转换器
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Application No.: US12403572Application Date: 2009-03-13
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Publication No.: US07683590B2Publication Date: 2010-03-23
- Inventor: Teiji Yoshida
- Applicant: Teiji Yoshida
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2008-063615 20080313
- Main IPC: G05F1/656
- IPC: G05F1/656 ; G05F1/613 ; G05F3/16

Abstract:
A step-down switching DC-DC converter may include an input coil on the input side, an output coil on the output side, a switch, an output capacitor, a first series circuit connected between a connection point on which the input coil and the switch are connected each other and a negative pole of a power source, and a second series circuit connected between a connection point on which the output coil and the switch are connected to each other and the negative pole of the power source. A connection point between a first intermediate capacitor and the first intermediate coil is connected to a connection point between a second intermediate capacitor and the switch via a switching device cooperating with the switch. The input coil and the first intermediate coil are electromagnetically coupled with each other. The output coil and the second intermediate coil are electromagnetically coupled with each other.
Public/Granted literature
- US20090230935A1 STEP-DOWN SWITCHING DC-DC CONVERTER Public/Granted day:2009-09-17
Information query
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