Title:
電源アダプタおよびＤＣ／ＤＣコンバータの制御回路
Document Type and Number:
Japanese Patent JP5731398
Kind Code:
B2
Abstract:
A power supply adapter receives an AC voltage, converts the AC voltage into a DC voltage, and supplies the DC voltage to an electronic device. A DC/DC converter converts the voltage smoothed by a smoothing capacitor into the DC voltage. A device-side connector is connected to the DC/DC converter via a cable, and is configured to be detachably connected to the electronic device. The device-side connector includes a detection unit detecting whether or not the electronic device is connected, and generates a connection detection signal indicating whether or not the electronic device is connected. A control circuit of the DC/DC converter is connected to the detection unit of the device-side connector via the cable, and is set to an operating state when the connection detection signal indicates that the electronic device is connected, and is set to a non-operating state when the connection detection signal indicates that the electronic device is not connected.
Inventors:
Master Satoshi
Hiroshi Hayashi
Tadayuki Sakamoto
Hiroshi Hayashi
Tadayuki Sakamoto
Application Number:
JP2011543108A
Publication Date:
June 10, 2015
Filing Date:
November 25, 2010
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
H02M3/28
Domestic Patent References:
| JP2003299355A | 2003-10-17 |
Attorney, Agent or Firm:
Sakaki Morishita
Masaki Taiki
Masaki Taiki