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A control method, electronic device

A control method and technology of electronic equipment, applied in the field of control, can solve problems such as lack of versatility, impossibility of implementation, and inability to load software, and achieve the effect of reducing the risk of power failure and shutdown and strong versatility

Active Publication Date: 2020-01-31
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the battery is over-discharged and shut down, the software cannot be loaded, and this solution cannot be implemented
In addition, this solution is difficult to implement for different operating systems and is not universal

Method used

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  • A control method, electronic device
  • A control method, electronic device
  • A control method, electronic device

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Embodiment Construction

[0044] In order to understand the characteristics and technical content of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and explanation purposes only, and are not used to limit the embodiments of the present invention.

[0045] figure 1 It is a schematic flow chart of the control method in the first embodiment of the present invention. The control method in this example is applied to electronic equipment, such as figure 1 As shown, the control method includes the following steps:

[0046] Step 101: Detect a voltage value of a power supply for supplying power to a light-emitting element, where the voltage value is used to reflect the power of the power supply; and generate a control signal according to the voltage value.

[0047] In the embodiment of the present invention, the electronic device ...

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PUM

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Abstract

The invention discloses a control method and electronic equipment. The control method comprises the steps as follows: a voltage value of a power supply for supplying electricity to a light-emitting component is detected; the voltage value is used for reflecting the electric quantity of the power supply; a control signal is generated according to the voltage value; and a resistor of a control circuit of the light-emitting component is connected by responding to the control signal, so that a current value when the power supply supplies electricity to the light-emitting component is controlled through the control circuit according to the connected resistor.

Description

Technical field [0001] The present invention relates to control technology, in particular to a control method and electronic equipment. Background technique [0002] At present, the display screens of electronic devices such as mobile phones mostly use liquid crystal display (LCD, Liquid Crystal Display). With the needs of users, the size of LCD displays continues to increase, and the current of LCD backlights is also increasing. When the battery power of the electronic device is very low, a large load current will cause the electronic device to suddenly power down and shut down; if the battery is over-discharged, it will be difficult to turn on the electronic device immediately after plugging in the charger. Too big and shut down quickly. [0003] The existing solution is to limit the brightness of the LCD display through software to reduce the load current. The program needs to be implemented after the software is started. When the battery is over-discharged and shut down, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00G09G3/36
CPCG09G3/36H02J7/0063H02J2007/0067
Inventor 李显西
Owner LENOVO (BEIJING) LTD