Power switch sequential circuit

A technology of sequential circuits and power switches, used in data processing power supplies, electrical digital data processing, measuring devices, etc., can solve the problem of unclear power supply sequence requirements, and achieve the effect of a convenient solution and a wide range of applications.

Pending Publication Date: 2018-05-18
SHANGHAI GONGJIN COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in some specific occasions, this design often has no obvious timing requirements for the power supply, so this requires a better method to solve the problem that the timing requirements for the power supply are not obvious.

Method used

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  • Power switch sequential circuit
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Embodiment Construction

[0022] In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

[0023] see image 3 As shown, it is a schematic diagram of the circuit structure of the switching sequential circuit of the present invention. The main feature of the power switch sequence circuit is that the circuit includes a power supply module, a main control chip CPU module and a voltage division regulation module connected in sequence;

[0024] The power supply module provides a first voltage source for the main control chip CPU module;

[0025] The main control chip CPU module is connected with the described power output module, the first voltage source is connected with the voltage source input pin end of the main control chip CPU module, and a second voltage source is connected with the main control chip The enabling pins of the CPU module are connected, and the second voltage source is used to d...

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Abstract

The invention relates to a power switch sequential switch. The circuit comprises a power supply module, a master control chip CPU module and a voltage-dividing regulating module. The power switch sequential circuit has the advantages that time sequence requirements between power switches can be satisfied fundamentally, and a new solution is provided for regulating the time sequence problem of a power supply; a good and convenient time sequence solution is provided for different circuits, the solution can be shared by complex CPU chips, and wide application range is achieved.

Description

technical field [0001] The present invention relates to the technical field of power switches, in particular to the technical field of timing response, in particular to a power switching sequential circuit. Background technique [0002] For terminal communication equipment, it often includes multiple functions. For example, a PON network communication product often includes functions such as PON, WiFi, and voice. The timing problem of the power supply, and how to deal with the timing problem between the power supplies, usually adds an RC circuit to the power enable pin (such as figure 1 , 2 Shown), through the relationship of the RC circuit to change the requirements of different power supply chips on the power sequence. However, in some specific occasions, this design often does not have obvious requirements on the timing sequence of the power supply, so a better method is needed to solve the problem that the timing sequence requirement on the power supply is not obvious....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26
CPCG06F1/263
Inventor 卜京徽
Owner SHANGHAI GONGJIN COMM TECH
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