System and method for protecting mobile terminal boot
A mobile terminal and port technology, applied in the transmission system, telephone structure, electrical components, etc., can solve the problem of excessive power-on current of the terminal, and achieve the effect of ensuring normal power-on
Active Publication Date: 2018-02-13
HUIZHOU TCL MOBILE COMM CO LTD
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Problems solved by technology
[0004] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a system and method for protecting the power-on of a mobile terminal, aiming to solve the problem of excessive power-on current of the terminal
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[0037] The present invention provides a system and method for protecting the power-on of a mobile terminal. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0038] see figure 1 , a system for protecting a mobile terminal from starting up, including:
[0039] The central processing unit 100 is used to send the first control signal that controls the transmission of the CLK clock signal of the SIM card and the second control signal that controls the transmission of the DATA data signal of the SIM card to the external program memory module;
[0040] The external program memory module 200 is used to receive the first control signal and the second control signal sent by the central processing unit 100, and sen...
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The present invention discloses a system and method for protecting the booting of a mobile terminal. By setting an external program memory module, a central processing unit sends a first control signal to control the transmission of the CLK clock signal of the SIM card and a second control signal to control the transmission of the DATA data signal of the SIM card. The control signal is sent to the external program memory module, and the external program memory module sends the first high-level signal and the second high-level signal to the delay processing module to perform delay processing on the first control signal and the second control signal, and Output the first control program and the second control program to the central processing unit, the central processing unit receives the first and second control programs, inquires the addresses of the first and second control signals, and controls the CLK clock signal of the SIM card to the SIM card The CLK port controls the DATA data signal of the SIM card to the DATA port of the SIM card, realizes the communication between the SIM card and the central processing unit, and achieves the delayed opening of the clock signal and data signal of the SIM card, avoiding the current of the mobile terminal when starting up It is too large to ensure the normal booting of the mobile terminal.
Description
technical field [0001] The invention relates to the field of mobile terminal charging, and in particular to a system and method for protecting the power-on of a mobile terminal. Background technique [0002] With the development and powerful functions of smart mobile terminals, its power-on current can reach more than 1.5A in an instant, especially when the smart mobile terminal powers on and the SIM card starts to search for the terminal network, the power-on current can reach about 2A in an instant. The chip and its peripheral electronic components are destructive to a certain extent. Increase the power supply management workload of the power management chip when the smart mobile terminal is turned on, resulting in excessive power supply current and burning out the power management chip. At the same time, the electronic components around the power management chip will also be burned out and broken down due to excessive power supply current. Therefore, how to reduce the st...
Claims
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IPC IPC(8): H04M1/02H04B1/3883
Inventor 章金玉
Owner HUIZHOU TCL MOBILE COMM CO LTD