Abstract: This disclosure relates to the technical field of automobiles and software and discloses an interface circuit and a method and apparatus for interface communication thereof. In the interface circuit, a micro-control unit has an output interface connected to a first conversion unit connected to a USB HOST interface and a USB SLAVE interface and a second conversion unit connected to an HDMI interface, and is configured to control the first conversion unit to be set in a HOST mode to communicate with the USB HOST interface when receiving a trigger signal from the USB HOST interface, the first conversion unit to be set in an SLAVE mode to communicate with the USB SLAVE interface when receiving a trigger signal from the USB SLAVE interface, and the second conversion unit to output the TMDS signal to communicate with the HDMI interface when receiving a trigger signal from the HDMI interface.

Abstract: The present invention relates to the field of automobile diagnosis, and provides an isolation circuit, an automobile diagnosis device and an automobile diagnosis system.

Abstract: A control system and method for improving battery output energy efficiency, and an electronic device are provided. The control system includes: a battery, a charging chip, a voltage conversion module, and a power supply management module. The battery is configured to send, when the control system is not connected to an external power supply, battery voltage to the voltage conversion module by means of the charging chip. The voltage conversion module is configured to receive the battery voltage, determine an operating mode on the basis of the battery voltage, acquire an output voltage corresponding to the operating mode, and output the output voltage to the power supply management module. The power supply management module is configured to convert and output at least one system voltage on the basis of the output voltage, and the at least one system voltage is configured to supply power to a powered system.

Abstract: The present application provides a battery that has application in automotive diagnostic tablets. The battery includes a battery cell, a positive electrode interface, and a negative electrode interface. The positive electrode of the battery cell is connected to the positive electrode interface. The battery further includes a first resistor and a protection chip. A first end of the first resistor is connected to the negative electrode of the battery cell, and the other end of the first resistor is connected to the negative electrode interface. The protection chip includes a power detection end and a communication interface, and the power detection end is connected to the first resistor. The protection chip is used to detect the power information of the battery cell by means of the power detection end, and the power information is sent by means of the communication interface to a microprocessor.

Abstract: A charging apparatus, a charging method, and an electronic device are provided. The charging apparatus includes a first charging module, a second charging module, a microprocessor and a voltage adjustment module. The microprocessor is connected to the first charging module and the second charging module. The voltage adjustment module is connected to the first charging module and the second charging module. The microprocessor is configured for controlling the first charging module and the second charging module to charge a battery. The first charging module is configured for supplying power to a vehicle diagnosis system and charging the battery. The second charging module is configured for charging the battery. A device that needs to be charged is charged by means of both the first charging module and the second charging module, and the charging current is controllable, such that the charging efficiency is improved.