CN202998036U

CN202998036U - One-button-long-pressing switching circuit

Info

Publication number: CN202998036U
Application number: CN 201220724731
Authority: CN
Inventors: 简书杰
Original assignee: QuanZhou HaoJie Information Technology Development Co Ltd
Current assignee: QuanZhou HaoJie Information Technology Development Co Ltd
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2013-06-12
Anticipated expiration: 2022-12-24

Abstract

The utility model brings forward a one-button-long-pressing switching circuit, solving a problem that a conventional long-pressing switching circuit is unstable, has high failure rate, etc. The one-button-long-pressing switching circuit comprises a power supply, a button, a time-delay circuit module, a trigger circuit module and a switching module. The button is connected between the power supply and the time-delay circuit module. The time-delay circuit module is electrically connected with the trigger circuit module. The trigger circuit module is electrically connected with the switching module.

Description

One bond distance presses switching circuit

Technical field

The utility model relates to a kind of switch, and particularly a bond distance presses switching circuit.

Background technology

switch comprises mechanical switch and electronic switch, one bond distance is a kind of of electronic switch by switch, an existing bond distance is generally single chip circuit by switching circuit, judge the turn-on time of push-button switch by scm software, when reach the preset value of software the turn-on time of push-button switch, the Single-chip Controlling switching circuit is made switch motion, this length is pressed switching circuit due to the mode that adopts software and hardware combining, compatibility to software and hardware is had relatively high expectations, often need to remodify software after circuit conversion, poor stability, in addition, when breaking down, software easily causes malfunctioning switch.

The utility model content

The utility model proposes a bond distance and solve the problems such as existing length is unstable by switch, failure rate is high by switching circuit.

The technical solution of the utility model is achieved in that

One bond distance presses switching circuit, comprises power supply and button, also comprises delay circuit module, circuits for triggering module and switch module; Described button is connected between described power supply and described delay circuit module; Described delay circuit module and described circuits for triggering module are electrically connected to; Described circuits for triggering module and described switch module are electrically connected to.

Described delay circuit module comprises NE555 timer, electric capacity (C1) and resistance (R1); The triggering pin (TRIG) of described NE555 timer is connected with the negative electricity of described electric capacity (C1), and the positive pole of described electric capacity (C1) is electrically connected to described power supply by described button; One end of described resistance (R1) respectively with the triggering pin (TRIG) of described NE555 timer be connected the negative electricity of electric capacity (C1) and be connected, the other end ground connection of described resistance (R1).

Described circuits for triggering module comprises the CD4013 trigger; The pulse clock input pin (CLK) of described CD4013 trigger is connected with the output of described delay circuit module by resistance (R2); The pin (SET) that arranges of described CD4013 trigger is electrically connected to described switch module by electric capacity (C2); The output pin of described CD4013 trigger (Q) is electrically connected to described switch module by resistance (R3).

Described switch module comprises two PMOS pipes; The drain electrode of described two PMOS pipes is electrically connected to mutually, and the grid of described two PMOS pipes is electrically connected to mutually, and the source electrode of described two PMOS pipes is electrically connected to mutually; The drain electrode of described PMOS pipe arranges pin (SET) by what electric capacity (C2) was electrically connected on described CD4013 trigger; The grid of described PMOS pipe is electrically connected on the output pin (Q) of described CD4013 trigger.

Described PMOS pipe is the IRF7316 transistor.

By above-mentioned to description of the present utility model as can be known, compared to the prior art, the utlity model has following advantage:

A bond distance of the present utility model presses switching circuit and is realized by hardware fully, need not single-chip microcomputer and coordinates, and need not to consider the compatibling problem of software, failure rate is low.The supply district of power supply is wide, can directly overlap to be used in different circuit, and is portable high.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is circuit theory schematic diagram of the present utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.

With reference to Fig. 1, a bond distance presses switching circuit, comprises power supply 1 and button 2, also comprises delay circuit module 3, circuits for triggering module 4 and switch module 5; Described button 2 is connected between described power supply 1 and described delay circuit module 3; Described delay circuit module 3 and described circuits for triggering module 4 are electrically connected to; Described circuits for triggering module 4 and described switch module 5 are electrically connected to.

With reference to Fig. 1, described delay circuit module 3 comprises NE555 timer U1, capacitor C 1 and resistance R 1; The triggering pin TRIG of described NE555 timer is connected with the negative electricity of described capacitor C 1, and the positive pole of described capacitor C 1 is electrically connected to described power supply by described button; One end of described resistance R 1 respectively with the triggering pin TRIG of described NE555 timer be connected the negative electricity of capacitor C 1 and be connected, the other end ground connection of described resistance R 1.

With reference to Fig. 1, described circuits for triggering module 4 comprises the CD4013 trigger; The pulse clock input CLK of described CD4013 trigger is connected with the output of described delay circuit module by resistance R 2; The pin SET that arranges of described CD4013 trigger is electrically connected to described switch module by capacitor C 2; The pin SET that arranges of described CD4013 trigger passes through resistance R 4 ground connection; Guarantee CD4013Q end output high level when powering on by capacitor C 2 and resistance R 4, when powering on, power supply is off-state.The output pin Q of described CD4013 trigger is electrically connected to described switch module by resistance R 3.

With reference to Fig. 1, described switch module 5 comprises two PMOS pipes U1, U2; The drain electrode of described two PMOS pipes is electrically connected to mutually, and the grid of described two PMOS pipes is electrically connected to mutually, and the source electrode of described two PMOS pipes is electrically connected to mutually; The drain electrode of described PMOS pipe arranges pin SET by what capacitor C 2 was electrically connected on described CD4013 trigger; The grid of described PMOS pipe is electrically connected on the output pin Q of described CD4013 trigger.Described PMOS pipe is the IRF7316 transistor.

Operation principle of the present utility model:

When button was pressed, NE555 established beginning work, output low level by cable.After delay time arrives, the output high level, after CD4013 had detected rising edge, CD4013 output output low level dragged down the IRF7316 collecting voltage, and IRF7316 manages conducting, so load power source has electricity.Realized that a complete bond distance who is completed by hardware is by on/off circuit.Delay time has relation by the value of resistance R 1 and capacitor C 1.The delay time computing formula is: T=1.1*R1*C1.

Compared to the prior art, the utlity model has following advantage:

The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a bond distance presses switching circuit, comprises power supply and button, it is characterized in that: also comprise delay circuit module, circuits for triggering module and switch module; Described button is connected between described power supply and described delay circuit module; Described delay circuit module and described circuits for triggering module are electrically connected to; Described circuits for triggering module and described switch module are electrically connected to.

2. a bond distance as claimed in claim 1 presses switching circuit, it is characterized in that: described delay circuit module comprises NE555 timer, electric capacity (C1) and resistance (R1);

The triggering pin (TRIG) of described NE555 timer is connected with the negative electricity of described electric capacity (C1), and the positive pole of described electric capacity (C1) is electrically connected to described power supply by described button;

One end of described resistance (R1) respectively with the triggering pin (TRIG) of described NE555 timer be connected the negative electricity of electric capacity (C1) and be connected, the other end ground connection of described resistance (R1).

3. a bond distance as claimed in claim 1 presses switching circuit, it is characterized in that: described circuits for triggering module comprises the CD4013 trigger;

The pulse clock input pin (CLK) of described CD4013 trigger is connected with the output of described delay circuit module by resistance (R2);

The pin (SET) that arranges of described CD4013 trigger is electrically connected to described switch module by electric capacity (C2);

The output pin of described CD4013 trigger (Q) is electrically connected to described switch module by resistance (R3).

4. a bond distance as claimed in claim 3 presses switching circuit, it is characterized in that: described switch module comprises two PMOS pipes; The drain electrode of described two PMOS pipes is electrically connected to mutually, and the grid of described two PMOS pipes is electrically connected to mutually, and the source electrode of described two PMOS pipes is electrically connected to mutually;

The drain electrode of described PMOS pipe arranges pin (SET) by what electric capacity (C2) was electrically connected on described CD4013 trigger; The grid of described PMOS pipe is electrically connected on the output pin (Q) of described CD4013 trigger.

5. a bond distance as claimed in claim 4 presses switching circuit, it is characterized in that: described PMOS pipe is the IRF7316 transistor.