ELECTRONIC UNIT

The present invention provides an electronic unit capable of suppressing a decrease in stability of an operation of a USB device that requires a current value exceeding a set current value of a USB2.0specification before connection from a USB host is permitted. After the USB host and the USB device...

Full description

Saved in:
Bibliographic Details
Main Author YAMAGUCHI UI
Format Patent
LanguageChinese
English
Published 19.11.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:The present invention provides an electronic unit capable of suppressing a decrease in stability of an operation of a USB device that requires a current value exceeding a set current value of a USB2.0specification before connection from a USB host is permitted. After the USB host and the USB device are connected to each other by a USB cable, a signal requesting for a connection permission is transmitted from the USB device to the USB host, and the USB host determines whether to permit a connection based on the signal. The electronic unit further includes a power supply configured to supply power to the USB device, and an additional GND pattern different from a GND pattern of the USB cable is electrically connected to a GND of the USB port of at least one of the USB host and the USB device. An area of the additional GND pattern is 2000 mm2 or more. 本发明提供一种电子单元，对于在从USB主机允许连接之前需要超过USB2.0规格的电流值的设定的电流值的USB设备，能够抑制动作的稳定性的降低。在具备USB主机及USB设备、在USB主机和USB设备由USB线缆相互连结之后从USB设备向USB主机发送要求允许连接的信号、并基于该信号来判定USB主机是否能够连接的电子单元中，还具备
Bibliography:Application Number: CN201910377786