Electronic device with power control function

Abstract

The electronic equipment includes first body, second body, pivot, light sensor, grating, control circuit, and electronic module. Through the pivot, the first body and second body are pivot jointed each other. The light sensor is setup on the first body. The grating is setup on the pivot. Part of the grating is positioned between the transmitting end and the receiving end of the light sensor. Thus, when second body carries out rotation action related to the first body, the light sensor generates a first sensed electric potential, and second sensed electric potential caused by rotation of grating. Based on the said first and second sensed electric potentials, the control circuit generates multiple control signals in use for controlling power supply of electronic module.

Description

technical field [0001] The invention relates to an electronic device, especially an electronic device suitable for power control function. Background technique [0002] As users have increasingly stringent requirements on the "mobility" of notebook computers, the power management of notebook computers has become an important issue. For a notebook computer, two main parts for power use can be distinguished, one of which is the mainframe of the notebook computer itself, and the other is the display of the notebook computer. [0003] In many occasions, the user may only need to use the host computer of the notebook computer without using the monitor of the notebook computer. For example: when making a conference presentation, the user may electrically connect the projector to the notebook computer, so as to present the content of the report by means of projection. At this time, the user operating the notebook computer usually does not need to use the display of the notebook c...

AI Technical Summary

Problems solved by technology

When using a mechanical cover switch, setting the mechanical cover switch on the notebook computer will easily damage the overall appearance of the notebook computer, and if the display of the notebook computer is deformed by external force, the operation of the mechanical cover switch may also be affected. erroneous action

When the magnet switch is used, the Gauss value between the magnets is used as the basis for the action. However, it is not easy to control the Gauss value between the magnets, so that the distance sensed by the sensor of the magnet switch will change.

In addition, after the magnet has been used for a long time, its Gauss value will attenuate, so it will also cause the problem of poor control of the magnet switch

In this way, when the user does not close the notebook computer, the magnetic switch may malfunction and turn off the power of the backlight module on the display.

Images