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1. 发明申请

US20230083174A1 PORT CONTROLLER AND ELECTRONIC DEVICE 有权
公开(公告)号：US20230083174A1
公开(公告)日：2023-03-16
申请号：US17903525
申请日：2022-09-06
申请人： ROHM CO., LTD.
发明人： Nozomu KOJA , Kenichi MOTOKI
IPC分类号： G06F13/38 , G06F13/42
摘要： The present disclosure provides a port controller and an electronic device. The port controller is compatible with a Universal Serial Bus (USB) Type-C standard and is used in a device operable as a sink device. The port circuit is communicable with an external main controller. A transceiver is communicable with a source device via a configuration channel (CC) pin of a receptacle. A control unit is capable of negotiating with the source device via the transceiver. A pin control circuit controls a state of the CC pin and monitors the state of the CC pin. A power supply circuit receives a bus voltage supplied from the source device and generates a power supply voltage of the main controller.

2. 发明申请

US20160308452A1 BUS CONTROLLER 有权
标题翻译：总线控制器
公开(公告)号：US20160308452A1
公开(公告)日：2016-10-20
申请号：US15099922
申请日：2016-04-15
申请人： ROHM CO., LTD.
发明人： Kenichi MOTOKI
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02J7/022 , H02M3/33576 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： A power supply apparatus is provided, that supplies a bus voltage VBUS to a detachable device. A DC/DC converter generates a DC voltage VOUT used as the bus voltage VBUS. A USB controller receives the DC voltage VOUT as a power supply voltage, and detects whether or not the device is connected. The DC/DC converter generates the DC voltage VOUT such that (i) when the device is detected, the DC voltage VOUT has a specified voltage level, and such that (ii) when the device is not detected, the DC voltage VOUT has a voltage level that is lower than the specified voltage level and that is higher than a minimum operating voltage level required to operate the USB controller.
摘要翻译：提供一种电源装置，其将总线电压VBUS提供给可拆卸装置。 DC / DC转换器产生用作总线电压VBUS的直流电压VOUT。 USB控制器接收直流电压VOUT作为电源电压，并检测设备是否连接。 DC / DC转换器产生DC电压VOUT，使得（i）当检测到器件时，DC电压VOUT具有指定的电压电平，并且使得（ii）当器件未被检测到时，DC电压VOUT具有电压电平低于指定的电压电平，高于操作USB控制器所需的最低工作电压电平。

3. 发明申请

US20180262115A1 BUS CONTROLLER 审中-公开
公开(公告)号：US20180262115A1
公开(公告)日：2018-09-13
申请号：US15975179
申请日：2018-05-09
申请人： ROHM CO., LTD.
发明人： Kenichi MOTOKI
IPC分类号： H02M3/335 , H02J7/02 , H02M1/00
CPC分类号： H02M3/33523 , H02J7/022 , H02M3/33576 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： A power supply apparatus is provided, that supplies a bus voltage VBUS to a detachable device. A DC/DC converter generates a DC voltage VOUT used as the bus voltage VBUS. A USB controller receives the DC voltage VOUT as a power supply voltage, and detects whether or not the device is connected. The DC/DC converter generates the DC voltage VOUT such that (i) when the device is detected, the DC voltage VOUT has a specified voltage level, and such that (ii) when the device is not detected, the DC voltage VOUT has a voltage level that is lower than the specified voltage level and that is higher than a minimum operating voltage level required to operate the USB controller.

4. 发明申请

US20160118880A1 USB POWER SUPPLY APPARATUS 有权
标题翻译： USB电源设备
公开(公告)号：US20160118880A1
公开(公告)日：2016-04-28
申请号：US14919062
申请日：2015-10-21
申请人： ROHM CO., LTD.
发明人： Kenichi MOTOKI
IPC分类号： H02M3/156 , H02M3/335
CPC分类号： H02M3/156 , H02M3/33523
摘要： A USB power supply apparatus conforms to the USB (Universal Serial Bus) specification, and supplies electric power to a USB power receiving apparatus. A bus line connects the output of a power supply circuit and the USB power receiving apparatus. A switch is provided on a path of the bus line. A selector selects one from among the output voltage VOUT of the power supply circuit and the bus voltage VBUS at a position that is closer to the USB power receiving apparatus side than the switch. A feedback circuit feedback controls the power supply circuit such that the voltage VS selected by the selector approaches a setting voltage VSET. A controller controls the switch and the selector based on the state of the USB power supply apparatus.
摘要翻译： USB电源设备符合USB（通用串行总线）规范，并向USB电源接收设备供电。总线连接电源电路的输出和USB电力接收装置。在总线的路径上提供开关。选择器从比开关更靠近USB电力接收装置侧的位置从电源电路的输出电压VOUT和总线电压VBUS中选择一个。反馈电路反馈控制电源电路，使得由选择器选择的电压VS接近设定电压VSET。控制器根据USB电源设备的状态控制开关和选择器。

5. 发明申请

US20140369085A1 POWER DELIVERY DEVICE AND CONTROL METHOD OF THE SAME 有权
标题翻译：电力输送装置及其控制方法
公开(公告)号：US20140369085A1
公开(公告)日：2014-12-18
申请号：US14302577
申请日：2014-06-12
申请人： ROHM CO., LTD.
发明人： Kenichi MOTOKI , Manabu MIYATA
IPC分类号： H02M1/36 , H02M3/335
CPC分类号： G06F1/266 , G06F1/24 , H02J1/06 , H02M2001/322 , H04L12/6418 , Y10T307/766
摘要： There can be provided a power delivery (PD) device capable of achieving protocols, e.g. Hard Reset, without using any alternative power source, and a control method of thereof. The PD device includes: a power source; a power line configured to deliver power supplied from the power source, to an outside; a switch connected between the power source and the power line; and a control circuit connected to the power line so that power is supplied from the power source to the control circuit, wherein at the time when a Hard Reset protocol is received from the outside through the power line, the control circuit turns from ON to OFF the switch to disconnect the power line from the power source.
摘要翻译：可以提供能够实现协议的功率传递（PD）设备，例如，硬复位，不使用任何替代电源及其控制方法。 PD设备包括：电源; 配置为将从电源供给的电力传送到外部的电力线; 连接在电源和电源线之间的开关; 以及连接到电力线的控制电路，使得从电源向控制电路供电，其中在通过电力线从外部接收到硬复位协议时，控制电路从接通变为断开切断电源线与电源的连接。

6. 发明申请

US20230087819A1 PHYSICAL LAYER CHIP AND ELECTRONIC DEVICE 有权
公开(公告)号：US20230087819A1
公开(公告)日：2023-03-23
申请号：US17903437
申请日：2022-09-06
申请人： ROHM CO., LTD.
发明人： Nozomu KOJA , Kenichi MOTOKI
IPC分类号： H02J7/00
摘要： The present disclosure relates to a physical layer chip and an electronic device. The physical layer chip is compatible with (Universal Serial Bus) USB Type-C standard and used in a device operable as a sink device. The physical layer chip includes an interface circuit, a transceiver, a non-volatile memory, a pin control circuit and an initial negotiation circuit. The interface circuit is communicable with an external main controller. The transceiver is communicable with a source device via a CC (Configuration Channel) pin. The non-volatile memory stores information required for an initial negotiation with the source device. The pin control circuit controls a state of the CC pin and monitors the state of the CC pin. The initial negotiation circuit is capable of performing the initial negotiation with the source device via the transceiver based on the information stored in the non-volatile memory.

7. 发明申请

US20170279270A1 POWER SUPPLY APPARATUS 审中-公开
公开(公告)号：US20170279270A1
公开(公告)日：2017-09-28
申请号：US15465121
申请日：2017-03-21
申请人： ROHM CO., LTD.
发明人： Kenichi MOTOKI
IPC分类号： H02J1/00 , H01B11/02 , H02M7/04 , H02J7/00 , H02M3/04
摘要： A power supply apparatus requests the transmission of a requested PDO. A power receiving apparatus transmits the requested PDO in response to the request. The power supply apparatus modifies a first PDO list based on the requested PDO when it is possible to do so. The first PDO list is modified when the requested voltage is not defined in the first PDO list in a case in which a power supply circuit of the power supply apparatus is capable of supplying the request voltage indicated by the requested PDO. Subsequently, negotiation is performed based on the first PDO list thus modified.

8. 发明申请

US20170264204A1 POWER SUPPLY APPARATUS 审中-公开
公开(公告)号：US20170264204A1
公开(公告)日：2017-09-14
申请号：US15455538
申请日：2017-03-10
申请人： ROHM CO., LTD.
发明人： Kenichi MOTOKI
IPC分类号： H02M3/335 , H02M1/08 , H02M1/32
CPC分类号： H02M3/33523 , H02H3/08 , H02H7/1216 , H02H7/261 , H02M1/08 , H02M1/32 , H02M3/335 , H02M2001/0009
摘要： A power supply apparatus supplies a bus voltage VBUS to a power receiving apparatus via a cable. A power supply circuit generates the bus voltage VBUS. The bus switch SW is arranged on a path of a bus line extending from the output of the power supply circuit. A power supply side controller is capable of communicating with a power receiving side controller of the power receiving apparatus. The power supply side controller determines the voltage to be supplied, based on a negotiation result. Furthermore, the power supply side controller controls the bus switch SW. When a predetermined state repeatedly occurs in the power supply circuit, a short circuit detection circuit judges that a short-circuit abnormality has occurred.

9. 发明申请

US20180019585A1 POWER RECEIVING APPARATUS AND CONTROL CIRCUIT THEREOF 审中-公开
公开(公告)号：US20180019585A1
公开(公告)日：2018-01-18
申请号：US15648890
申请日：2017-07-13
申请人： ROHM CO., LTD.
发明人： Fuminori KOGA , Kenichi MOTOKI
IPC分类号： H02H3/16 , H02H1/00 , H02H7/26 , H02J7/00
CPC分类号： H02H3/16 , H02H1/0007 , H02H3/087 , H02H7/26 , H02H11/005 , H02J1/00 , H02J7/0029 , H02J2007/0062
摘要： A power receiving apparatus receives a bus voltage from a power supply apparatus via a cable, and supplies the bus voltage to a load circuit. A power receiver side controller receives, as a power supply, a voltage VADP, of a bus line that is more toward a bus switch. The power receiver side controller is capable of communicating with a power supply side controller of the power supply apparatus. Furthermore, the power receiver side controller determines the voltage to be supplied based on a negotiation, and controls the bus switch. A short circuit detection circuit detects a short circuit of a bus line that is more toward the load circuit side than the bus switch.

10. 发明申请

US20160116928A1 USB POWER SUPPLY APPARATUS 有权
标题翻译： USB电源设备
公开(公告)号：US20160116928A1
公开(公告)日：2016-04-28
申请号：US14919109
申请日：2015-10-21
申请人： ROHM CO., LTD.
发明人： Kenichi MOTOKI
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： A USB power supply apparatus supplies electric power to a USB power reception apparatus. A bus line connects the output of the power supply circuit and the USB power reception apparatus. A switch is provided on a path of the bus line. A feedback circuit feedback controls the power supply circuit such that the output voltage VOUT of the power supply circuit approaches a reference voltage VREF. A controller adaptively controls the reference voltage VREF based on an electrical state of the USB power supply apparatus.
摘要翻译： USB电源装置向USB电力接收装置供电。总线连接电源电路的输出和USB电力接收装置。在总线的路径上提供开关。反馈电路反馈控制电源电路，使得电源电路的输出电压VOUT接近参考电压VREF。控制器基于USB电源设备的电气状态自适应地控制参考电压VREF。

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