Zte Corporation

Xi'an Zte New Software Company Limited

Jihong Wang

Jiajun Liu

The disclosure discloses a method for power-on control of a mobile terminal and a mobile terminal. The method includes: when a power-on detection flag bit in a mobile terminal is at a high level, judging whether there is an external power supply access event; if it is judged that there is an external power supply access event, and it is detected that the mobile terminal is in a power-off status currently, then triggering an external power supply power-on event, and setting the power-on detection flag bit to a high level; if it is judged that there is no external power supply access event, then judging whether there is a key-pressing event; and if it is judged that there is a key-pressing event, and it is determined that the key-pressing event is used for controlling to turn on the mobile terminal, then triggering a key-pressing power-on event, and setting the power-on detection flag bit to a high level. The technical solution of the disclosure proposes a specific implementation solution for supporting two types of power-on events using an existing power supply management chip.

Method for power-on control of mobile terminal

The embodiments provide a mobile hotspot UFI device and a start-up method. The UFI device includes a battery, a main control chip, a power management chip and a start-up control unit. The power management chip internally provides a control signal at a first electric potential, and when the control signal is at a second electric potential, the power management chip controls the battery to supply electricity to hardware of the UFI device. When the main control chip does not output a GPIO signal, the start-up control unit conducts the external power supply to the control signal, so as to make the control signal change from the first electric potential to the second electric potential. When the main control chip outputs the GPIO signal, the start-up control unit disconnects the external power supply from the control signal.

Mobile hotspot UFI device and start-up method

A charging circuit and a control method for charging different brands of mobile devices are disclosed. The charging circuit comprises: a universal interface connected to a mobile device to be charged; a charging adaptation unit comprising at least two types of charging circuitries, wherein the charging adaptation unit is connected to the universal interface and configured to provide a corresponding charging circuitry for the mobile device; a voltage conversion unit connected to a charging power source and configured to adjust an output voltage of the charging power source to a charging voltage for the mobile device; and a current detection unit connected between the voltage conversion unit and the charging adaptation unit and configured to detect a charging current, wherein the charging current is configured to determine the corresponding charging circuitry for the mobile device. The charging circuit and the control method thereof can charge different brands of mobile devices by means of a single universal interface, and can also charge a mobile device by means of another mobile device, which makes the use of mobile devices more convenient.

Charging circuit and control method therefor

The present disclosure provides a management device for a charging circuit and a wireless terminal, which belong to the technical field of management control of a linear charging circuit. The device includes a power supply management module (), a buck switching voltage converter () and a linear charging circuit (). The power supply management module () includes an adjustable Low Dropout (LDO) linear regulator () and an Analog-to-Digital Converter (ADC) (), wherein the output terminal of the adjustable LDO linear regulator () is connected with the feedback terminal of the buck switching voltage converter () through a first preset resistor (R). The input terminal of the ADC () is connected with the anode of a battery (). The control terminal of the power supply management module () is connected with the control terminal of the linear charging circuit (). The output terminal of the buck switching voltage converter () is connected with the input terminal of the linear charging circuit (). The output terminal of the linear charging circuit () is connected with the anode of the battery (). With the device, the energy loss can be reduced and the whole power loss can be reduced.

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Shenzhen, China

Jihong Wang