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Mobile terminal

A technology of mobile terminals and triodes, applied in lighting devices, telephone structures, light sources, etc.

Inactive Publication Date: 2012-07-11
SHANGHAI SIMCOM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these are all based on the power-on state, that is to say, it is more common to realize the flashlight in

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0033] refer to figure 2 , the shutdown control unit of the flashlight control circuit includes a first triode Q700 and a first pull-up resistor R702, the control interface of the MCU includes a first control IO, figure 2 Indicated by TORCH_EN, the base of the first triode Q700 is connected to the first control IO of the MCU, the collector of the first triode Q700 is connected to the light source module, and the emitter of the first triode Q700 The pole is grounded through a button SW22, that is, the OK button, and connected to the power supply VBAT through the first pull-up resistor R702.

[0034] The boot control unit includes a second triode Q701, and the control interface of the MCU also includes a second control IO, figure 2 Indicated by GPIO1_TORCH_EN, the base of the second transistor Q701 is connected to the second control IO of the MCU, the collector of the second transistor Q701 is connected to the light source module, and the emitter of the second transistor Q70...

Embodiment 2

[0041] refer to image 3 , the flashlight control circuit includes a third transistor Q703, a switch transistor Q705 and a second pull-up resistor R172, the base of the third transistor Q703 is connected to the first control IO of the MCU, in this embodiment Indicated by TORCH, the collector of the third transistor Q703 is connected to the light source module, the emitter of the third transistor Q703 is connected to the drain of the switching transistor Q705, and the gate of the switching transistor Q705 passes through the The second pull-up resistor R172 is connected to the power supply VBAT and grounded through a button S701, the source of the switch tube Q705 is grounded, the third triode Q703, the switch tube Q705 and the second pull-up resistor R172 constitute the shutdown control unit.

[0042] In addition, the flashlight control circuit also includes a fourth transistor Q704, the base of the fourth transistor Q704 is connected to the second control IO of the MCU, repre...

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PUM

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Abstract

The invention discloses a mobile terminal, which comprises a flashlight control circuit, wherein the flashlight control circuit is used for receiving a control signal from a microprogrammed control unit (MCU) and a light source turning-on signal; the flashlight control circuit controls to turn on and off the light source module according to the control signal and the light source turning-on signal; the flashlight control circuit also comprises a turning-off control unit and a turning-on control unit; the power supply end of the flashlight control circuit is connected with a power supply; the control end of the flashlight control circuit is connected with the control interface of the MCU; and the output end of the flashlight control circuit is connected with the input end of the light source module. The mobile terminal disclosed by the invention is characterized in that a flashlight lighting function under the turning-on state and the turning-off state is realized without adding any peripheral equipment, and meanwhile, the flashlight can be turned on without any mechanical switches under the turning-off state.

Description

technical field [0001] The present invention relates to a mobile terminal, in particular to a mobile terminal capable of realizing the function of a flashlight in both the on and off states. Background technique [0002] In the current mobile phone application, whether it is a high-end mobile phone configuration or a low-end mobile phone configuration, most mobile phones are equipped with a flashlight function, which is realized by hardware, such as through a flashlight or an additional LED light source, or through software and screen backlight. The flashlight function is like controlling the brightness of the background light of the mobile phone and the display color of the mobile phone screen to achieve the effect of lighting or colorful lights. The screen lighting is achieved by adjusting the background light of the mobile phone screen to achieve lighting effects. But these are all based on the power-on state, that is to say, in the prior art, it is more common to realize...

Claims

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Application Information

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IPC IPC(8): H04M1/21H05B37/02
Inventor 王健
Owner SHANGHAI SIMCOM LTD