CN106921372A - A kind of one-way delay circuit for realizing slow upper electricity - Google Patents
A kind of one-way delay circuit for realizing slow upper electricity Download PDFInfo
- Publication number
- CN106921372A CN106921372A CN201710096910.8A CN201710096910A CN106921372A CN 106921372 A CN106921372 A CN 106921372A CN 201710096910 A CN201710096910 A CN 201710096910A CN 106921372 A CN106921372 A CN 106921372A
- Authority
- CN
- China
- Prior art keywords
- circuit
- poles
- triode
- way delay
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K2017/515—Mechanical switches; Electronic switches controlling mechanical switches, e.g. relais
Abstract
The invention belongs to circuit design field, and in particular to a kind of one-way delay circuit for realizing delaying electricity.For the control system without CPU, using RC circuit realirations, and general RC circuits are two-way time delay, that is, power off and energization can occur time delay, and when output current is higher, it is desirable to capacitance is big, influences space.The present invention realizes the one-way delay circuit of slow upper electricity, including RC circuits, bleeder circuit, on-off circuit, drive circuit and the relay 1U1 being made up of T-shaped resistance and electric capacity, can be successfully applied to slow upper electric control and the control system without CPU.
Description
Technical field
The invention belongs to circuit design field, and in particular to a kind of one-way delay circuit for realizing delaying electricity.
Background technology
Conventional slow upper electricity is using CPU controls and RC circuits.For the control system without CPU, using RC circuit realirations, and
General RC circuits are two-way time delay, that is, power off and energization can occur time delay, and when output current is higher, it is desirable to capacitance
Greatly, space is influenceed.
The content of the invention
The present invention realizes the one-way delay circuit of slow upper electricity, including RC circuits, the partial pressure electricity being made up of T-shaped resistance and electric capacity
Road, on-off circuit, drive circuit and relay 1U1, three ends of the T-shaped resistance respectively with input and the two ends of electric capacity 1C1
Connection, the two ends of electric capacity 1C1 also respectively in ground connection and on-off circuit PNP triode 1Q2 E poles, the bleeder circuit connection
The B poles of triode 1Q2, the C poles of triode 1Q2 are connected with drive circuit control end；The output end of the drive circuit with it is described
Coil one end connection of relay 1U1, the coil other end is connected with input；The electricity being connected with input in the T-shaped resistance
More than 20 times of coil resistance of the resistance resistance more than relay 1U1.
The drive circuit uses the on-off circuit of the two poles of the earth NPN triode.
The C poles of PNP triode 1Q2 are connected by 1R9 with the B poles of NPN triode 1Q3 in the drive circuit, triode
The E poles of 1Q3 are connected by resistance 1R14 with the B poles of NPN triode 1Q4, the C poles of triode 1Q4 and E poles respectively with relay
The coil of 1U1 and ground connection.
Two ends of the B poles and E poles of described triode 1Q4 respectively with electric capacity 1C2 are connected.
After signal input, the E pole tensions of triode 1Q2 slowly rise, after reaching certain threshold value, circuit output signal；
When no signal is input into, coil voltage is dropped below relay shut-off voltage at once, and circuit is not exported.
When upper electric, by RC circuits, a terminal voltage of controlling switch circuit slowly rises, and the other end is connect by divider resistance
The level of setting, both end voltage is compared.When voltage reaches given threshold, the conducting of rear class on-off circuit is driven, realized on slow
Electricity, instantly during electricity, by T-shaped resistor network, adjusts output end voltage, realizes fast break.
Beneficial effect：The time-delay method of this slow upper electricity, can be successfully applied to slow upper electric control and the control system without CPU.
Brief description of the drawings
Fig. 1 is the one-way delay circuit structure diagram of the slow upper electricity of the present invention；
Fig. 2 is the analogous diagram of the one-way delay circuit of the slow upper electricity of the present invention.
Specific embodiment
As shown in figure 1, after enable signal is given, the B ends of triode 1Q2 are constant, and E point voltages slowly rise, and work as VEB>
During 0.7V, then 1Q2 conductings, while driving 1Q3,1Q4 conducting, so as to drive relay to turn on, export low effective motor and enable
Signal.When motor enables signal opens a way, 1C1 electric discharges, and relay coil is connected with resistance 1R4, because 1R4 resistances are with respect to line
Circle resistance is much bigger, therefore coil voltage drops below relay shut-off voltage at once, so as to realize rapidly switching off.Specific emulation
Waveform is as shown below.
Claims (5)
- It is 1. a kind of to realize slow electric one-way delay circuit, it is characterised in that：Including the RC electricity being made up of T-shaped resistance and electric capacity Road, bleeder circuit, on-off circuit, drive circuit and relay 1U1,Two ends of three ends of the T-shaped resistance respectively with input and electric capacity 1C1 are connected, and the two ends of electric capacity 1C1 also connect respectively The E poles of PNP triode 1Q2, the B poles of the bleeder circuit connecting triode 1Q2, the C of triode 1Q2 in ground and on-off circuit Pole is connected with drive circuit control end；The output end of the drive circuit is connected with coil one end of the relay 1U1, and coil is another One end is connected with input；Coil resistance 20 of the resistance being connected with input in the T-shaped resistance more than relay 1U1 More than times.
- 2. one-way delay circuit according to claim 1, it is characterised in that：The drive circuit uses the poles of the two poles of the earth NPN tri- The on-off circuit of pipe.
- 3. one-way delay circuit according to claim 2, it is characterised in that：PNP triode 1Q2 in the drive circuit C poles are connected by 1R9 with the B poles of NPN triode 1Q3, and the E poles of triode 1Q3 pass through the B of resistance 1R14 and NPN triode 1Q4 Pole connects, the C poles of triode 1Q4 and E poles respectively with the coil of relay 1U1 and be connected.
- 4. one-way delay circuit according to claim 3, it is characterised in that：The B poles and E poles of described triode 1Q4 point Two ends not with electric capacity 1C2 are connected.
- 5. the one-way delay circuit according to any one in Claims 1 to 4, it is characterised in that：After signal input, three The E pole tensions of pole pipe 1Q2 slowly rise, after reaching certain threshold value, circuit output signal；When no signal is input into, coil voltage At once below drop relay shut-off voltage, circuit is not exported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096910.8A CN106921372A (en) | 2017-02-22 | 2017-02-22 | A kind of one-way delay circuit for realizing slow upper electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096910.8A CN106921372A (en) | 2017-02-22 | 2017-02-22 | A kind of one-way delay circuit for realizing slow upper electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106921372A true CN106921372A (en) | 2017-07-04 |
Family
ID=59454521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710096910.8A Pending CN106921372A (en) | 2017-02-22 | 2017-02-22 | A kind of one-way delay circuit for realizing slow upper electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106921372A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072749U (en) * | 1989-11-18 | 1991-03-06 | 杜解蓉 | Electronic delay-action circuit breaker |
| CN201029021Y (en) * | 2006-08-18 | 2008-02-27 | 杭州华三通信技术有限公司 | Electrical start delaying circuit of positive power |
| CN102684660A (en) * | 2012-05-29 | 2012-09-19 | 江苏德厚机电有限公司 | Simple circuit with charge delay and discharge instant |
| CN103199487A (en) * | 2013-04-10 | 2013-07-10 | 罗格朗低压电器（无锡）有限公司 | Overvoltage delay protection method and overvoltage delay protection device |
| CN103297010A (en) * | 2013-05-31 | 2013-09-11 | 徐州医学院 | Precision programmable delay circuit |
| CN105515412A (en) * | 2015-12-22 | 2016-04-20 | 上海交通大学 | Automatic soft power-on rectifying circuit |
| CN205490464U (en) * | 2016-01-11 | 2016-08-17 | 焦作华飞电子电器股份有限公司 | Delay circuit of repid discharge |
| CN106208762A (en) * | 2016-08-29 | 2016-12-07 | 北京超同步伺服股份有限公司 | Motor braking control circuit |
-
2017
- 2017-02-22 CN CN201710096910.8A patent/CN106921372A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072749U (en) * | 1989-11-18 | 1991-03-06 | 杜解蓉 | Electronic delay-action circuit breaker |
| CN201029021Y (en) * | 2006-08-18 | 2008-02-27 | 杭州华三通信技术有限公司 | Electrical start delaying circuit of positive power |
| CN102684660A (en) * | 2012-05-29 | 2012-09-19 | 江苏德厚机电有限公司 | Simple circuit with charge delay and discharge instant |
| CN103199487A (en) * | 2013-04-10 | 2013-07-10 | 罗格朗低压电器（无锡）有限公司 | Overvoltage delay protection method and overvoltage delay protection device |
| CN103297010A (en) * | 2013-05-31 | 2013-09-11 | 徐州医学院 | Precision programmable delay circuit |
| CN105515412A (en) * | 2015-12-22 | 2016-04-20 | 上海交通大学 | Automatic soft power-on rectifying circuit |
| CN205490464U (en) * | 2016-01-11 | 2016-08-17 | 焦作华飞电子电器股份有限公司 | Delay circuit of repid discharge |
| CN106208762A (en) * | 2016-08-29 | 2016-12-07 | 北京超同步伺服股份有限公司 | Motor braking control circuit |
Non-Patent Citations (1)
| Title |
|---|
| 胡春等: ""LED电源老化测试用的缓启动恒流电子负载"", 《现代电子技术》 * |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |