Portable electronic equipment and flash lamp control circuit thereof

Abstract

The invention discloses portable electronic equipment and a flash lamp control circuit thereof. The equipment comprises a power supply, an energy storage unit, a light-emitting unit, a first electronic switch unit, a mechanical switch unit and an equipment main circuit. An output terminal of the power supply is connected with a power supply input terminal of the energy storage unit. The output terminal of the energy storage unit is connected with the light-emitting unit. A first terminal, a second terminal and a control terminal of the first electronic switch unit are connected with an enablement terminal of the energy storage unit, the output terminal of the power supply and the equipment main circuit respectively. The first terminal of the mechanical switch unit is connected with the control terminal of the electronic switch unit. The second terminal of the mechanical switch unit is connected with a reference voltage. When the first terminal and the second terminal of the mechanical switch unit are connected with each other through a mechanical mode, the reference voltage triggers the first electronic switch unit to be conducted so that the enablement terminal of the energy storage unit is enabled and the light-emitting unit is luminous. Through the above mode, when the electronic equipment of the invention is turned off, the light-emitting unit can be served as an electric torch.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to a portable electronic equipment and a flashlight control circuit thereof. Background technique [0002] Portable mobile phones are changing with each passing day along with the development of mobile communication technology in recent years. Taking the mobile phone as an example, at present, the mobile phone is an electronic product necessary for people's daily work and life, and its functions are becoming more and more perfect. [0003] Nowadays, in the design of mobile phones, especially in the design of mobile phones equipped with high-pixel cameras, flashlights for taking pictures are generally configured. Among them, the flash generally adopts light-emitting diodes. However, the flash can usually only compensate for the light when taking pictures, and the flash is generally in an idle state at other times, and the utilization efficiency is low. [0004] In the prior art...

AI Technical Summary

Problems solved by technology

However, the flash can usually only compensate for the light when taking pictures, and the rest of the time the flash is generally in an idle state, and the utilization efficiency is low

[0004] In the prior art, some mobile phones also use the flashlight as a flashlight function. However, the current shared design of the mobile phone flashlight and flashlight is based on the fact that the user needs to enter a specific menu to enter the flashlight function when the mobile phone is turned on. It cannot be used when the mobile phone is turned off, which is inconvenient for users to use the flashlight function

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