Title:
給電装置およびその制御回路、受電装置およびその制御回路、それを用いた電子機器および充電アダプタ、異常検出方法
Document Type and Number:
Japanese Patent JP6596447
Kind Code:
B2
Abstract:
A power supply apparatus supports USB-PD (Universal Serial Bus-Power Delivery) specification. A bus voltage VBUS is transmitted via a bus line. A first power supply circuit generates a first bus voltage having a first voltage level. A second power supply circuit generates a second bus voltage having a second voltage level that is higher than the first voltage level. A first switch is arranged between the bus line and an output terminal of the first power supply circuit. A second switch is arranged between the bus line and an output terminal of the second power supply circuit. A control circuit receives a control signal S1 via the bus line from a power receiving apparatus, which is a power supply target. The control circuit is structured to control the first switch and the second switch based on the control signal S1.
Inventors:
Fumen Koga
Application Number:
JP2016571889A
Publication Date:
October 23, 2019
Filing Date:
January 06, 2016
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
G06F1/26; H02J1/00; H02J7/00
Domestic Patent References:
| JP2003263245A | ||||
| JP2012190216A | ||||
| JP2015002399A |
Foreign References:
| WO2014070612A1 |
Other References:
下豊留 勉,USB Power Deliveryを利用した直流給電の広がり,電子情報通信学会2014年通信ソサイエティ大会講演論文集2,日本,一般社団法人電子情報通信学会,2014年 9月 9日,p.S-28~S-29
Attorney, Agent or Firm:
Sakaki Morishita
Masaki Taiki
Masaki Taiki