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Protection method and equipment for processing device operation

A technology of processing device and frequency protection, applied in measurement device, data processing power supply, signal generation/distribution, etc., can solve the problems of unstable CPU operation, high production cost, exceeding rated current, etc., to reduce power and ensure stable operation , Eliminate the effect of redundant design

Active Publication Date: 2020-08-07
ALLWINNER TECH CO LTD
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Problems solved by technology

In order to support the CPU to run at a higher frequency clock signal, many manufacturers will configure redundant power supplies (that is, redundant design) for the CPU, such as configuring two DC-DC power supplies, which will make the production cost higher; otherwise , if no redundant power supply is configured, the current of the CPU is too large under the high frequency clock signal, which may exceed the rated current of the power supply, resulting in unstable operation of the CPU

Method used

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  • Protection method and equipment for processing device operation
  • Protection method and equipment for processing device operation
  • Protection method and equipment for processing device operation

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Embodiment Construction

[0026] Now in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.

[0027] Such as figure 1 Shown is an embodiment of the protection device for the operation of the processing device of the present invention. The protection device operated by the processing device includes: a processing device 10 , a gating circuit 11 , a frequency synthesizer 12 , a power management unit 13 and a reference frequency signal generating circuit 14 .

[0028] Processing device 10 refers to the device that needs to rely on the clock signal to carry out related operations or control, and can be a processor (CPU (Central Processing Unit), GPU (Graphics Processing Unit)), an arithmetic unit (such as ALU in the CPU, Arithmetic LogicUnit arithmetic logic computing unit), controller (such as the Control Unit in the CPU), etc. Generally speaking, the processing device 10 can work with a clock signal in a frequency range, for exampl...

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Abstract

The present invention provides a processing device operation protecting method and device. The method comprises the following steps that: when the current of the processing device exceeds a current threshold, a strobe circuit outputs a normal frequency synthesis parameter from the strobe and switches to the strobe to output a protection frequency synthesis parameter; and a frequency synthesizer generates a clock signal of the protection frequency according to the protection frequency synthesis parameter output by the strobe circuit, and transmits the clock signal of the protection frequency to the processing device, wherein the corresponding frequency of the clock signal generated and transmitted to the processing device by the frequency synthesizer according to the normal frequency synthesis parameter is greater than the protection frequency. According to the technical scheme provided by the present invention, power of the power supply can be reduced or redundant design of the power supply can be reduced or eliminated while ensuring the stable operation of the processing device, so that the purpose of reducing the cost under a plurality of situations can be achieved.

Description

technical field [0001] The invention relates to the field of processing devices, in particular to a protection method and equipment for the operation of the processing device. Background technique [0002] At present, a processing device such as a CPU (Central Processing Unit) can usually operate under a clock signal of a frequency range. Generally speaking, when working under a clock signal of a different frequency, the current of the CPU is different, and the greater the frequency of the clock signal, The larger the current of the CPU, the power supply configured for the CPU must also be able to provide a corresponding range of current. In order to support the CPU to run at a higher frequency clock signal, many manufacturers will configure redundant power supplies (that is, redundant design) for the CPU, such as configuring two DC-DC power supplies, which will make the production cost higher; otherwise , if no redundant power supply is configured, the current of the CPU i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/26G06F1/08
CPCG06F1/08G06F1/26
Inventor 黎景宇刘浩成潘楠
Owner ALLWINNER TECH CO LTD
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