CN206639002U

CN206639002U - A kind of magnetic induction low-power consumption wake-up circuit

Info

Publication number: CN206639002U
Application number: CN201720343947.1U
Authority: CN
Inventors: 张元振; 周圣仓; 丁红雷; 周志伟; 杨福辉
Original assignee: Shandong Oubiao Information Technology Co Ltd
Current assignee: Shandong Oubiao Information Technology Co Ltd
Priority date: 2017-04-04
Filing date: 2017-04-04
Publication date: 2017-11-14
Anticipated expiration: 2027-04-04

Abstract

A kind of magnetic induction low-power consumption wake-up circuit, including tongue tube, single-chip microcomputer, voltage source and power control circuit；Described tongue tube one end connects voltage source, the other end connection single-chip microcomputer of the tongue tube, and the single-chip microcomputer is also connected with power control circuit, and the power control circuit includes：FET M1, the FET M1 grid connect single-chip microcomputer by resistance R1, and the source electrode of the FET M1 connects the voltage source, and the drain electrode of the FET M1 is output end, and power supply is provided for late-class circuit；The source electrode that the grid of the FET M1 passes through the resistance R2 connections FET M1.

Description

A kind of magnetic induction low-power consumption wake-up circuit

Technical field

It the utility model is related to wake-up circuit field, more particularly to a kind of magnetic induction low-power consumption wake-up circuit.

Background technology

Magnetic induction low-power consumption wake-up circuit is a kind of circuit dedicated for wake-up device work.Currently various live In the application of electronic product, equipment in most cases and does not need full speed running, and the time point for needing to run is random The change depending on external factor of rule.Traditional wake-up mode is the wake-up mode of the contacts such as button, necessary when in use There is physical contact, so as to add the design difficulty of control panel shell, and be difficult in the occasion for requiring certain degree of protection Adapt to.Very big inconvenience is brought to onsite application.

Utility model content

In order to solve the above-mentioned technical problem, the utility model proposes a kind of magnetic induction low-power consumption wake-up circuit, it is using non- The magnetic induction wake-up mode of contact, circuit is simple, reasonable in design, eliminates the difficulty of physical contact housing design, solves Problems of the prior art.

To achieve these goals, the scheme of the utility model use is：

A kind of magnetic induction low-power consumption wake-up circuit, it is characterised in that including tongue tube, single-chip microcomputer, voltage source and power supply Control circuit；Described tongue tube one end connects voltage source, the other end connection single-chip microcomputer of the tongue tube, and the single-chip microcomputer also connects Power control circuit is connect, the power control circuit includes：FET M1, the grid of the FET M1 pass through resistance R1 Single-chip microcomputer is connect, the source electrode of the FET M1 connects the voltage source, and the drain electrode of the FET M1 is output end, after being Level circuit provides power supply；The source electrode that the grid of the FET M1 passes through the resistance R2 connections FET M1.

The single-chip microcomputer is STM32F103C8T6.

The tongue tube is plastic packaging normally open reed switch.

Also include magnetic devices, the magnetic devices are used cooperatively with the tongue tube.

The beneficial effects of the utility model are：Circuit structure and its simple, reliable operation, solves contact wake-up circuit Disadvantage, and reduce power consumption.

Brief description of the drawings

Fig. 1 structural representations of the present utility model；

Fig. 2 power control circuit circuit structure diagrams.

Embodiment

In order to be better understood by the technical solution of the utility model, the utility model is made furtherly below in conjunction with the accompanying drawings It is bright.

As shown in Figure 1-2, a kind of magnetic induction low-power consumption wake-up circuit, it is characterised in that including tongue tube, single-chip microcomputer, electricity Potential source and power control circuit；Described tongue tube one end connects voltage source, the other end connection single-chip microcomputer of the tongue tube, institute State single-chip microcomputer and be also connected with power control circuit, the power control circuit includes：FET M1, the grid of the FET M1 Pole connects single-chip microcomputer by resistance R1, and the source electrode of the FET M1 connects the voltage source, the drain electrode of the FET M1 For output end, power supply is provided for late-class circuit；The grid of the FET M1 passes through the resistance R2 connections FET M1 Source electrode.

The single-chip microcomputer is STM32F103C8T6.

When " SW " signal being connected with single-chip microcomputer is high level, FET M1 is P-channel field-effect transistor (PEFT) pipe, FET M1 Source drain ends, when " SW " signal is on the contrary, the conducting of FET M1 drain-sources.So as to control out-put supply.

The tongue tube is plastic packaging normally open reed switch.

When passing through housing close to tongue tube using magnetic devices, when normally open reed switch senses magnetic field nearby, dry spring Pipe internal switch is closed, electric conduction potential source VCC and single-chip I/O mouth, and an electricity will be produced on the single-chip I/O mouth so pulled down Flat rising edge, so as to which the single-chip microcomputer of dormancy be waken up.Subsequent single-chip microcomputer, which exports the power supply of power control part, to be opened, and is rear class Circuit is powered, so as to open the new working condition of a wheel, until epicycle work is completed.

It is not new to this practicality although above-mentioned specific embodiment of the present utility model is described with reference to accompanying drawing The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability Field technique personnel need not pay the various modifications that creative work can make or deformation still in protection model of the present utility model Within enclosing.

Claims

1. a kind of magnetic induction low-power consumption wake-up circuit, it is characterised in that including tongue tube, single-chip microcomputer, voltage source and power supply control Circuit processed；Described tongue tube one end connects voltage source, the other end connection single-chip microcomputer of the tongue tube, and the single-chip microcomputer is also connected with Power control circuit, the power control circuit include：FET M1, the grid of the FET M1 are connect by resistance R1 Single-chip microcomputer, the source electrode of the FET M1 connect the voltage source, and the drain electrode of the FET M1 is output end, is rear class Circuit provides power supply；The source electrode that the grid of the FET M1 passes through the resistance R2 connections FET M1.

2. a kind of magnetic induction low-power consumption wake-up circuit according to claim 1, it is characterised in that the single-chip microcomputer is STM32F103C8T6。

3. a kind of magnetic induction low-power consumption wake-up circuit according to claim 1, it is characterised in that the tongue tube is plastic packaging Normally open reed switch.

A kind of 4. magnetic induction low-power consumption wake-up circuit according to claim 1, it is characterised in that also including magnetic devices, The magnetic devices are used cooperatively with the tongue tube.