Apparatus of controlling current, system and method thereof

A technology for controlling current and electronic devices, which is applied in the direction of current supply devices, TV system components, color TV components, etc., can solve the problems of large power consumption, prevent the system from automatically shutting down, reduce the total current, and better The effect of user experience

Inactive Publication Date: 2016-03-02
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the flash is turned on to take pictures or used as a flashlight, the power consumption is very large

Method used

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  • Apparatus of controlling current, system and method thereof
  • Apparatus of controlling current, system and method thereof
  • Apparatus of controlling current, system and method thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] see figure 1 Shown is a structure diagram of a preferred embodiment of the system for controlling current according to the present invention. In this embodiment, the system 10 for controlling current is executed in the portable electronic device 1 . The portable electronic device 1 may be a mobile phone, a PAD and the like. The portable electronic device 1 includes, but is not limited to, a flash drive unit 11 , a logic switch control unit 12 , a flash 13 , a storage device 14 and a microprocessor 15 . The flash 13 of the portable electronic device 1 generally has two operating modes, namely the Torch mode and the Flash mode. Torch mode is usually used as a flashlight at night, when the flash 13 is continuously illuminated. In the Flash mode, the flash 13 is used as fill light when taking pictures.

[0025] The flash drive unit 11 refers to a flash drive chip, and the flash drive chip can not only light up the flash 13, but also facilitate switching between Torch mo...

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PUM

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Abstract

A system of controlling a current is disclosed. The system comprises a receiving module, a first processing module and a second processing module, wherein the receiving module is used for receiving a signal of opening a flash lamp; the first processing module is used for making a second resistor be conducted with a flash lamp driving unit through a logic switch control unit when a control pin of the logic switch control unit is a high level; and the second processing module is used for making a first resistor be conducted with the flash lamp driving unit through the logic switch control unit when the control pin of the logic switch control unit is a low level. The invention also provides an apparatus and a method of controlling the current. Through externally connecting a logic switch and the resistor, the current of the flash lamp is adjusted so that a total current of a whole portable electronic apparatus is reduced; automatic closing of the system is prevented and a good user experience is brought.

Description

technical field [0001] The present invention relates to a device, system and method for controlling current applied to a portable electronic device. Background technique [0002] Nowadays, most portable electronic devices (such as mobile phones) are equipped with cameras. In order to enhance the shooting experience of a specific scene, the cameras are equipped with a flash, which can be used as a flashlight. When the flash is turned on to take pictures or use as a flashlight, the power consumption is very large. At the same time, the radio frequency power amplifier of the portable electronic device will also generate a current of about 1 amp during the continuous interactive communication with the base station, so when the flash is turned on, the entire system of the portable electronic device will instantly generate a large current (such as 3-4 ampere). When the large current flows through the portable electronic device, the portable electronic device will automatically t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/73G06F1/32H04N5/232
Inventor 张超徐文建
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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