Title:
POWER FEEDING DEVICE AND CONTROL CIRCUIT THEREOF, POWER RECEIVING DEVICE AND CONTROL CIRCUIT THEREOF, ELECTRONIC DEVICE AND CHARGING ADAPTOR USING SAME, AND ANOMALY DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/121434
Kind Code:
A1
Abstract:
This power feeding device 100 conforms to the USB (Universal Serial Bus) -PD (Power Delivery) specification. A bus line 220 transmits a bus voltage VBUS. A first power supply circuit 130 generates a first bus voltage having a first voltage level V1. A second power supply circuit 132 generates a second bus voltage having a second voltage level V2 that is higher than the first voltage level V1. A first switch SW1 is provided between the bus line 220 and the output terminal of the first power supply circuit 130, and a second switch SW2 is provided between the bus line 220 and the output terminal of the second power supply circuit 132. A control circuit 140 is configured so as to receive via the bus line 220 a control signal S1 from a power receiving device 200 to which power is to be fed, and control the first switch SW1 and the second switch SW2 on the basis of the control signal S1.
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Inventors:
KOGA FUMINORI (JP)
Application Number:
PCT/JP2016/050260
Publication Date:
August 04, 2016
Filing Date:
January 06, 2016
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
G06F1/20; G06F1/26; H02J1/00
Domestic Patent References:
| WO2014070612A2 | 2014-05-08 |
Foreign References:
| JP2003263245A | 2003-09-19 | |||
| JP2012190216A | 2012-10-04 | |||
| JP2015002399A | 2015-01-05 |
Other References:
TSUTOMU SHIMOTOYODOME: "The expansion of DC power supply using USB Power Delivery", PROCEEDINGS OF THE 2014 SOCIETY CONFERENCE OF IEICE 2, 9 September 2014 (2014-09-09), pages S-28 - S-29
Attorney, Agent or Firm:
MORISHITA SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
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