CN205318129U - Time -delay control circuit - Google Patents
Time -delay control circuit Download PDFInfo
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- CN205318129U CN205318129U CN201520970350.0U CN201520970350U CN205318129U CN 205318129 U CN205318129 U CN 205318129U CN 201520970350 U CN201520970350 U CN 201520970350U CN 205318129 U CN205318129 U CN 205318129U
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- resistance
- audion
- control circuit
- delay control
- circuit
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Abstract
The utility model is suitable for a delay circuit technical field provides a time -delay control circuit, include: RC charging and discharging circuit and triode Q2, RC charging and discharging circuit is including parallelly connected zener diode ZD1. The utility model provides a pair of time -delay control circuit utilizes the switching characteristic of triode and electrolytic capacitor's the discharge characteristics that fills to realize the delayed function, reaches the control to the relay simultaneously, and charging and discharging circuit carries out voltage clamp through zener diode, realizes accurate charging voltage control, reaches the control of accurate delay time.
Description
Technical field
This utility model belongs to delay circuit technical field, particularly relates to a kind of delay control circuit.
Background technology
In prior art, delay control circuit is generally adopted capacitor charge and discharge circuit, timing circuit and Single-chip Controlling realization, and in degree of accuracy, timing circuit and Single-chip Controlling are comparatively accurate, but in expense also costly.
Capacitor charge and discharge circuit is only used as filtering or the simple time controls to use, and error is bigger. Such as name is called " delay circuit " (application number: 201320613697.0, publication date: on April 2nd, 2014) disclosed in technical scheme, this delay circuit includes RC charge-discharge circuit, audion and metal-oxide-semiconductor, RC charge-discharge circuit one end connects power supply, the other end is connected to base stage and the emitter stage of audion, RC charge-discharge circuit charges after a period of time, make audion and metal-oxide-semiconductor conducting, its charging interval foot is delay time, the conducting of audion triggers the electric capacity both end voltage leaning on RC charge-discharge circuit completely, and precision is not high.
Utility model content
The purpose of this utility model embodiment is in that to provide a kind of delay control circuit, at least can overcome the segmental defect of prior art.
A kind of delay control circuit that this utility model embodiment relates to, including: RC charge-discharge circuit and audion Q2, described RC charge-discharge circuit includes the Zener diode ZD1 of parallel connection.
As a kind of delay control circuit that embodiment one relates to, power supply V1 is connected by switching ON and diode D1 and RC charge-discharge circuit.
Described delay control circuit also includes the drive circuit being connected with the colelctor electrode of audion Q2;
Described drive circuit includes the diode D2 and the relay R y that are connected in parallel, and the negative pole of described diode D2 is connected with power supply V2, and positive pole is connected with the colelctor electrode of described audion Q2.
Described RC charge-discharge circuit includes: resistance R3, resistance R4, resistance R5, electric capacity C1 and Zener diode ZD1;
Described resistance R4 and described electric capacity C1 is in parallel with described Zener diode ZD1 after connecting;
Described resistance R3 one end connects the negative pole of described diode D1, and the other end connects the negative pole of described Zener diode ZD1 and one end of described resistance R4;
The positive pole of described Zener diode ZD1 and one end ground connection of described electric capacity C1;
The junction point of described resistance R4 and described electric capacity C1 is connected by the base stage of described resistance R5 with described audion Q2.
Described audion Q2 is NPN type triode, the grounded emitter of described audion Q2.
Described delay control circuit also includes the interlock circuit in parallel with described RC charge-discharge circuit; Described interlock circuit includes resistance R1, resistance R2 and NPN type triode Q1;
Described resistance R1 one end connects the negative pole of described diode D1, and the other end connects the base stage of described audion Q1;
The colelctor electrode of described audion Q1 is connected with the base stage of described audion Q2, and grounded emitter is connected to described resistance R2 between emitter stage and base stage.
The beneficial effect of a kind of delay control circuit that this utility model embodiment provides includes:
A kind of delay control circuit that this utility model embodiment provides, the switching characteristic of audion and the charge-discharge characteristic of electrochemical capacitor is utilized to realize the function of time delay, reach the control to relay simultaneously, charge-discharge circuit carries out voltage clamp by Zener diode, realize accurate charging voltage to control, reach the control of accurate delay time.
Electric capacity realizes charging/discharging function by the related resistors connected, and parameter designing different in RC charge-discharge circuit can reach the control of different discharge times, it is achieved produces different delay times according to demand.
A kind of delay control circuit that this utility model embodiment provides also includes the interlock circuit in parallel with RC charge-discharge circuit, this interlock circuit includes the audion Q1 that colelctor electrode is connected with the base stage of audion Q2, it is achieved the function of signal interlocking between audion Q1 and audion Q2.
Being conveniently used for the on-off control of automobile, function delays time to control, low pressure are to the on-off control of high pressure and need in the phase relation train control system that delay operation controls, and circuit design is simple, it is easy to debugging, graft application.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit theory diagrams of the embodiment of a kind of delay control circuit that this utility model provides;
Fig. 2 is the function signal figure of the embodiment of a kind of delay control circuit that this utility model provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
In order to technical scheme described in the utility model is described, illustrate below by specific embodiment.
Embodiment one
The specific embodiment of a kind of delay control circuit that the embodiment one that this utility model provides provides for this utility model, it is illustrated in figure 1 the circuit theory diagrams of the embodiment of the delay control circuit that this utility model provides, as shown in Figure 1, in the embodiment of the delay control circuit that this utility model provides:
A kind of delay control circuit that this utility model provides, including RC charge-discharge circuit and audion Q2, wherein RC charge-discharge circuit includes the Zener diode ZD1 of parallel connection.
A kind of delay control circuit that this utility model embodiment provides, RC charge-discharge circuit includes the Zener diode of parallel connection, carries out clamper by this Zener diode, it is achieved accurate charging voltage controls, and reaches the control of accurate delay time. Power supply V1 is connected by switching ON and diode D1 and RC charge-discharge circuit. Switch ON is in when pressing with off-state, produces high level or low level. Produce diode D1 one-way conduction during high level, by this high level transmission to RC charge-discharge circuit.
Further, a kind of delay control circuit that this utility model embodiment provides, also include the drive circuit being connected with the colelctor electrode of audion Q2, drive circuit includes the diode D2 and the relay R y that are connected in parallel, the negative pole of diode D2 is connected with power supply V2, and positive pole is connected with the colelctor electrode of audion Q2.
Diode D2 is the fly-wheel diode of relay R y, and for suppressing the reverse electrodynamic type of relay R y, audion Q2 is not breakdown in protection. Adopting two power supply V1 and V2 to power, two kinds of voltages can be the same or different.
Drive circuit carries out the drive amplification of signal mainly through audion Q2, it is achieved the control that the adhesive of relay R y is disconnected.
In this utility model embodiment, RC charge-discharge circuit includes: resistance R3, resistance R4, resistance R5, electric capacity C1 and Zener diode ZD1.
Resistance R4 and electric capacity C1 is in parallel with Zener diode ZD1 after connecting. Resistance R3 one end connects the negative pole of diode D1, and the other end connects the negative pole of Zener diode ZD1 and one end of resistance R4. The positive pole of Zener diode ZD1 and one end ground connection of electric capacity C1. The junction point of resistance R4 and electric capacity C1 is connected by the base stage of resistance R5 and audion Q2, and audion Q2 is NPN type triode, the grounded emitter of audion Q2.
When switch ON presses generation high level, the resistance R3, resistance R4, zener diode ZD1 and the electric capacity C1 that are connected with power supply V1 start to charge up, until reaching the burning voltage of Zener diode ZD1, resistance R4 realizes the control to charged electrical electric current; After switch ON disconnects, electric capacity C1 is discharged by R5, the base stage of audion Q2 and emitter stage, until the VBEO voltage that the voltage of electric capacity C1 is lower than audion Q2, during electric discharge, audion Q2 turns on, and drives relay adhesive, it is achieved the function of delays time to control. Delay time can be adjusted by the capacitance of electric capacity C1, the voltage stabilizing value of Zener diode ZD1 and the parameter of resistance R5, it is achieved produces different delay times according to demand. It is illustrated in figure 2 the function signal figure of a kind of delay control circuit that this utility model provides.
Further, a kind of delay control circuit that this utility model embodiment provides, also include the interlock circuit in parallel with RC charge-discharge circuit. This interlock circuit includes resistance R1, resistance R2 and NPN type triode Q1.
Resistance R1 one end connects the negative pole of diode D1, the base stage of other end connecting triode Q1. The colelctor electrode of audion Q1 is connected with the base stage of audion Q2, and grounded emitter is connected to resistance R2 between emitter stage and base stage.
When switching ON and pressing one high level of generation, resistance R1 and R2 carries out dividing potential drop and current limliting, audion Q1 turns on, the base stage of audion Q2 is connected with the colelctor electrode of audion Q1, this audion Q1 has dragged down the base voltage of audion Q2, now the base stage of audion Q2 is low-voltage, and therefore Q2 ends, and relay R y is off-state.
After switch ON disconnects, audion Q1 disconnects because base stage loses electric current, and audion Q2 discharges due to the energy storage of electric capacity and turns on, thus realizing the function of signal interlocking.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (4)
1. a delay control circuit, described delay control circuit includes RC charge-discharge circuit and audion Q2, it is characterised in that described RC charge-discharge circuit includes the Zener diode ZD1 of parallel connection;
Described delay control circuit also includes the drive circuit being connected with the colelctor electrode of audion Q2;
Described drive circuit includes the diode D2 and the relay R y that are connected in parallel, and the negative pole of described diode D2 is connected with power supply V2, and positive pole is connected with the colelctor electrode of described audion Q2;
Described RC charge-discharge circuit includes: resistance R3, resistance R4, resistance R5, electric capacity C1 and Zener diode ZD1;
Described resistance R4 and described electric capacity C1 is in parallel with described Zener diode ZD1 after connecting;
Described resistance R3 one end connects the negative pole of described diode D1, and the other end connects the negative pole of described Zener diode ZD1 and one end of described resistance R4;
The positive pole of described Zener diode ZD1 and one end ground connection of described electric capacity C1;
The junction point of described resistance R4 and described electric capacity C1 is connected by the base stage of described resistance R5 with described audion Q2.
2. delay control circuit as claimed in claim 1, it is characterised in that power supply V1 is connected by switching ON and diode D1 and RC charge-discharge circuit.
3. delay control circuit as claimed in claim 1, it is characterised in that described audion Q2 is NPN type triode, the grounded emitter of described audion Q2.
4. delay control circuit as claimed in claim 2, it is characterised in that described delay control circuit also includes the interlock circuit in parallel with described RC charge-discharge circuit;
Described interlock circuit includes resistance R1, resistance R2 and NPN type triode Q1;
Described resistance R1 one end connects the negative pole of described diode D1, and the other end connects the base stage of described audion Q1;
The colelctor electrode of described audion Q1 is connected with the base stage of described audion Q2, and grounded emitter is connected to described resistance R2 between emitter stage and base stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520970350.0U CN205318129U (en) | 2015-11-27 | 2015-11-27 | Time -delay control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520970350.0U CN205318129U (en) | 2015-11-27 | 2015-11-27 | Time -delay control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205318129U true CN205318129U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520970350.0U Expired - Fee Related CN205318129U (en) | 2015-11-27 | 2015-11-27 | Time -delay control circuit |
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| CN (1) | CN205318129U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103871A (en) * | 2017-06-30 | 2017-08-29 | 京东方科技集团股份有限公司 | The power supply circuit and method of supplying power to of display device and display screen |
| CN108919728A (en) * | 2018-08-23 | 2018-11-30 | 深圳和而泰智能控制股份有限公司 | A kind of control circuit |
| CN108980077A (en) * | 2018-07-11 | 2018-12-11 | 孝感卓尔网络科技有限公司 | A kind of radiator fan device of delays time to control computer |
| CN112599384A (en) * | 2020-11-19 | 2021-04-02 | 深圳市优优绿能电气有限公司 | Magnetic latching relay drive circuit |
| CN113179096A (en) * | 2021-04-25 | 2021-07-27 | 珠海格力电器股份有限公司 | Delay circuit, motor device and motor system |
-
2015
- 2015-11-27 CN CN201520970350.0U patent/CN205318129U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103871A (en) * | 2017-06-30 | 2017-08-29 | 京东方科技集团股份有限公司 | The power supply circuit and method of supplying power to of display device and display screen |
| CN108980077A (en) * | 2018-07-11 | 2018-12-11 | 孝感卓尔网络科技有限公司 | A kind of radiator fan device of delays time to control computer |
| CN108919728A (en) * | 2018-08-23 | 2018-11-30 | 深圳和而泰智能控制股份有限公司 | A kind of control circuit |
| CN108919728B (en) * | 2018-08-23 | 2023-09-26 | 深圳和而泰智能控制股份有限公司 | Control circuit |
| CN112599384A (en) * | 2020-11-19 | 2021-04-02 | 深圳市优优绿能电气有限公司 | Magnetic latching relay drive circuit |
| CN113179096A (en) * | 2021-04-25 | 2021-07-27 | 珠海格力电器股份有限公司 | Delay circuit, motor device and motor system |
| CN113179096B (en) * | 2021-04-25 | 2023-07-14 | 珠海格力电器股份有限公司 | Delay circuit, motor device and motor system |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20211127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |