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Hard startup / shutdown system

A technology of hard switching and switching, which is applied in the field of hard switching systems, can solve the problems of power consumption of triggers and inconvenient product maintenance, etc., and achieve the effects of controllable shutdown time, zero power consumption, and detectable shutdown status

Active Publication Date: 2014-06-18
GUANGDONG BIOLIGHT MEDITECH CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The second is to control the power on and off of the system through the microcontroller. After the system power is turned off, it can enter the standby state, and still consume mA level or hundreds of uA level current. The more serious problem is that the microcontroller crashes or is paralyzed. In this case, it can only be restored when the battery and external power supply are disconnected, which brings great inconvenience to product maintenance
The third is the combination of the first two. This kind of circuit has also undergone many improvements. Among them, the control mode of the hardware switch machine is changed to circuit control. For example, the good inversion of the trigger is used to replace the mechanical control system. For the purpose of opening and closing, the stability is stronger, but the trigger consumes power all the time

Method used

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Embodiment Construction

[0023] In order for those skilled in the art to better understand the technical solutions provided by the present invention, the following will be described in conjunction with specific embodiments.

[0024] See figure 1 and figure 2 , figure 1 It is a functional block diagram of the hard switch system in the embodiment of the present invention; figure 2 It is a circuit structure diagram of the hard switch system in the embodiment of the present invention.

[0025] The hard switch system provided by the embodiment of the present invention includes a power supply and an overcurrent protection circuit, a switch button, a hardware start circuit, a software shutdown circuit, a hardware forced shutdown circuit, a hardware forced shutdown time adjustment circuit, and a button detection circuit, wherein:

[0026] Power supply and overcurrent protection circuit: realize the function of shutting off the power supply to protect the subsequent stage circuit when short circuit or exc...

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Abstract

The invention discloses a hard startup / shutdown system. The hard startup / shutdown system comprises a power source, an over-current protection circuit, a startup / shutdown key, a hardware startup circuit, a software shutdown circuit, a hardware compulsory shutdown circuit, a hardware compulsory shutdown time regulating circuit and a key detection circuit. Compared with the prior art, the hard startup / shutdown system has the advantages that hardware startup time is controllable, shutdown states can be detected, the standby state hardly consumes power, and the hard startup / shutdown system is simple, safe and reliable.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a hard switch system. Background technique [0002] At present, in the switching circuit of medical equipment, one design method is hardware switching, the other is software switching, and the third is hardware switching + software switching. The first is to press the power button and disconnect the power supply of the mechanical control system. The control method is simple and the standby current can reach zero power consumption. The second is to control the power on and off of the system through the microcontroller. After the system power is turned off, it can enter the standby state, and still consume mA level or hundreds of uA level current. The more serious problem is that the microcontroller crashes or is paralyzed. In this case, it can only be restored when the battery and external power supply are disconnected, which brings great inconvenience to product maintenance. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04
Inventor 关晓丽关贤光
Owner GUANGDONG BIOLIGHT MEDITECH CO LTD
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