CN109507928A - A kind of sequential control circuit of power supply application - Google Patents
A kind of sequential control circuit of power supply application Download PDFInfo
- Publication number
- CN109507928A CN109507928A CN201811507051.8A CN201811507051A CN109507928A CN 109507928 A CN109507928 A CN 109507928A CN 201811507051 A CN201811507051 A CN 201811507051A CN 109507928 A CN109507928 A CN 109507928A
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- timers
- terminal regulator
- connection
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Direct Current Feeding And Distribution (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention relates to a kind of sequential control circuit of power supply application, mainly solve the problems, such as that existing sequential control circuit is complicated.It includes timing circuit and enabled circuit.The power supply first powered on works normally timing circuit by three terminal regulator, and when reaching the time value of circuit configuration, timer exports high level and triggers enabled circuit, and the enable end of enabled circuit control delay out-put supply makes its output.Sequential control circuit structure of the present invention is simple, and circuit is reliable, can be applied in multiple power supplies.
Description
Technical field
The invention belongs to power technique fields, and in particular to a kind of sequential control circuit of power supply application.
Background technique
The development of electronic technology, so that the requirement to various logic circuit to power supply is more and more.Many systems are uncommon
Power supply is hoped to power according to certain electrifying timing sequence.
Existing power-on time sequence control circuit, peripheral circuit complexity used in element it is more, cause increased costs, reliability low.
Therefore, a high power-on time sequence control circuit of practicability is the problem to be solved in the present invention.
Summary of the invention
Technical problems to be solved
It is an object of the invention to avoid above-mentioned the deficiencies in the prior art, vacantly there is the power supply of output in conjunction with enable end, mention
Supplied it is a kind of be simple and efficient stable timing electrification circuit, this circuit can be made by oneself in the case where not needing complex peripheral circuit
Adopted power-on time.Meet system to power supply timing power up requirement.
Technical solution
A kind of sequential control circuit of power supply application, characterized by comprising:
Timing circuit, for the time of setting to be controlled to subsequent enabled circuit；
Enabled circuit, the circuit for realizing hanging or ground connection two states；
The timing circuit connect with the power supply of electrifying timing sequence in front also with enabled circuit connection, including 1 resistance
R1, four capacitor C1~C4, a three terminal regulator A1,555 timers, a diode D1；Three terminal regulator A1's
The both ends VIN and GND meet the+Vout and-Vout of power supply 1 respectively, and shunt capacitance C1 is connected to the VIN and GND of three terminal regulator A1
Both ends；Decoupling capacitor C2 is connected to the both ends VOUT and GND of three terminal regulator A1；Capacitor C3 is connected to three terminal regulator A1's
The end THRES of VOUT and 555 timers；The end VCC of 555 timers is connected with the end VOUT of three terminal regulator, 555 timers
The end GND is connected with the end GND of three terminal regulator, and the end TRIG of 555 timers and the end THRES are shorted, the end TRIG of 555 timers
It is connect with the cathode of diode D1, the end RESET of 555 timers is connect with the end three terminal regulator VOUT；The anode of diode D1
It is connect with the GND of three terminal regulator；R1 is in parallel with D1；
The power supply enable end that the enabled circuit need to be delayed with timing circuit and power supply output respectively is connect, including three
Resistance R2~R4, optocoupler a U2, capacitor a C5, a triode Q1；555 is fixed in the one end resistance R2 and above-mentioned timing circuit
When device OUT terminal connection, the resistance R2 other end connect with the anode of optocoupler U2；The cathode of optocoupler U2 and the GND of three terminal regulator
Connection；The collector of optocoupler U2 is connect with one end of resistance R3 and R4, the collector of optocoupler U2 also with the base stage of triode Q1 and
One end of capacitor C5 connects；The other end connection of the other end, R4 of the emitter and C5 of optocoupler U2, the emitter of optocoupler U2 and three
The emitter of pole pipe Q1 connects；The collector of triode Q1 is connect with the enable end of power supply 2, the emitter and power supply of triode Q1
2-Vin connection.
Beneficial effect
A kind of sequential control circuit of power supply application proposed by the present invention, has the beneficial effect that:
(1) present invention is compared with existing timing electrification circuit, the application for adapting to multiple power supplies that can be simple and reliable.
(2) circuit structure of the present invention is simple, small in size.
Detailed description of the invention
Fig. 1 is timing circuit provided by the invention and enabled circuit block diagram；
Fig. 2 is timing circuit provided by the invention and enabled circuit diagram；
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
Referring to Fig.1, the present invention provides a kind of sequential control circuit based on timing circuit and enabled circuit, is applied to pair
The power supply that electrifying timing sequence requires.Circuit of the present invention can be applied in the multiple power supplies required to electrifying timing sequence.
Timing circuit and power supply and enabled circuit connection.
Enabled circuit is connect with timing circuit, and the output of enabled circuit is connect with the enable end of delay out-put supply is required.
Referring to Fig. 2, the structure and principles illustrated of each unit circuit of the present invention are as follows:
Timing circuit, including but not limited to resistance R1, capacitor C1~C4, three terminal regulator A1,555 timers, diode
D1.The voltage that three terminal regulator provides system is converted into voltage required for 555 timers work normally, 555 timers
The end CONT seal in capacitor C4 be followed by GND prevent introduce interfere, capacitor C3 is charged by resistance R1, when the voltage at the both ends of capacitor C3
When rising to 2/3Vcc, the OUT terminal of 555 timers exports high level.The capacity of adjustment capacitor C3 can make 555 timer OUT
The time change of end output high level.The fast discharge path of capacitor C3 when diode D1 is as power down.
Enabled circuit, including but not limited to resistance R2~R4, optocoupler U2, capacitor C5, triode Q1.When above-mentioned timing circuit
+ Vin forms forward bias voltage by R3, R4 base stage and emitter to triode Q1 when OUT does not export high level, and Q1 is led
It is logical to make the enabled termination GND power supply 2 of power supply 2 without output.When the OUT terminal of timing circuit exports high level, the primary side of optocoupler U2 is logical
R2 conducting is crossed, the secondary side of optocoupler U2 is also switched on, and is not turned on the base stage of triode Q1 and emitter short circuit triode, at this time power supply
The hanging power supply 2 in 2 enable end has output.
Claims (1)
1. a kind of sequential control circuit of power supply application, characterized by comprising:
Timing circuit, for the time of setting to be controlled to subsequent enabled circuit；
Enabled circuit, the circuit for realizing hanging or ground connection two states；
The timing circuit connect with the power supply of electrifying timing sequence in front also with enabled circuit connection, including 1 resistance R1, four
A capacitor C1~C4, a three terminal regulator A1,555 timers, a diode D1；The VIN of three terminal regulator A1 and
The both ends GND meet the+Vout and-Vout of power supply 1 respectively, and shunt capacitance C1 is connected to the both ends VIN and GND of three terminal regulator A1；
Decoupling capacitor C2 is connected to the both ends VOUT and GND of three terminal regulator A1；Capacitor C3 be connected to three terminal regulator A1 VOUT and
The end THRES of 555 timers；The end VCC of 555 timers is connected with the end VOUT of three terminal regulator, the end GND of 555 timers
It is connected with the end GND of three terminal regulator, the end TRIG of 555 timers and the end THRES are shorted, the end TRIG and two of 555 timers
The cathode of pole pipe D1 connects, and the end RESET of 555 timers is connect with the end three terminal regulator VOUT；The anode and three of diode D1
Hold the GND connection of voltage-stablizer；R1 is in parallel with D1；
The power supply enable end that the enabled circuit need to be delayed with timing circuit and power supply output respectively is connect, including three resistance
R2~R4, optocoupler a U2, capacitor a C5, a triode Q1；555 timers in the one end resistance R2 and above-mentioned timing circuit
OUT terminal connection, the resistance R2 other end connect with the anode of optocoupler U2；The GND connection of the cathode and three terminal regulator of optocoupler U2；
The collector of optocoupler U2 is connect with one end of resistance R3 and R4, the collector of optocoupler U2 also with the base stage of triode Q1 and capacitor C5
One end connection；The other end connection of the other end, R4 of the emitter and C5 of optocoupler U2, the emitter and triode Q1 of optocoupler U2
Emitter connection；The collector of triode Q1 is connect with the enable end of power supply 2, the emitter of triode Q1 and power supply 2-
Vin connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507051.8A CN109507928A (en) | 2018-12-10 | 2018-12-10 | A kind of sequential control circuit of power supply application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507051.8A CN109507928A (en) | 2018-12-10 | 2018-12-10 | A kind of sequential control circuit of power supply application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109507928A true CN109507928A (en) | 2019-03-22 |
Family
ID=65753241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811507051.8A Pending CN109507928A (en) | 2018-12-10 | 2018-12-10 | A kind of sequential control circuit of power supply application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109507928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509848A (en) * | 2020-04-17 | 2020-08-07 | 西安电子工程研究所 | Fault and temperature reporting circuit for power supply application |
| CN112180798A (en) * | 2020-10-09 | 2021-01-05 | 珠海格力电器股份有限公司 | Time sequence control circuit, power supply control circuit and frequency converter |
-
2018
- 2018-12-10 CN CN201811507051.8A patent/CN109507928A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509848A (en) * | 2020-04-17 | 2020-08-07 | 西安电子工程研究所 | Fault and temperature reporting circuit for power supply application |
| CN112180798A (en) * | 2020-10-09 | 2021-01-05 | 珠海格力电器股份有限公司 | Time sequence control circuit, power supply control circuit and frequency converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207069553U (en) | A kind of control circuit for realizing hardware watchdog and automatic time delay break-make Electricity Functional | |
| CN101572485A (en) | Intelligent driving control method and device for secondary synchronous rectifier | |
| CN204131210U (en) | Power supply switch circuit and portable electric appts | |
| CN104124878A (en) | Power supply module, switch power supply chip and switch power supply system | |
| CN208904889U (en) | Power supply timing control circuit | |
| CN109507928A (en) | A kind of sequential control circuit of power supply application | |
| CN102594300A (en) | Light-operated signal generating circuit | |
| CN105762781A (en) | Surge current control circuit and power supply device | |
| CN207382188U (en) | The delay of DC-DC chips output voltage is slow to rise circuit | |
| CN209313809U (en) | The switching circuit structure of adjustable timing | |
| CN203054660U (en) | Rapid power-cut controlling circuit applied to power supply managing circuit | |
| CN208316365U (en) | A kind of power down time extends circuit and power control circuit | |
| CN203813750U (en) | Low-cost time-delay circuit for double-power-supply sequential power-on | |
| CN101801128B (en) | Command marker lamp and LED control circuit thereof | |
| CN105675977A (en) | Electric energy meter and method for pre-stage and post-stage stage power failure detection and control of power switching-off by magnetic latching relay and data storage | |
| CN106773905B (en) | A kind of disappeared based on power supply timing trembles the switching value output circuit of control | |
| CN210776688U (en) | Ideal diode circuit device with very low cost | |
| CN112018839B (en) | Load detection circuit | |
| CN208126335U (en) | L DO power-on sequence adjusting circuit and main chip power supply circuit | |
| CN208079464U (en) | Each module of power source internal starts sequential control circuit | |
| CN204030994U (en) | Supply module, switching power source chip and switch power supply system | |
| CN202995351U (en) | Buzzer and switch-assembly multiplexing system | |
| CN210110646U (en) | Protection circuit for preventing transient impulse current of relay | |
| CN109471025B (en) | Method for realizing electromagnetic relay line detection and feedback signal detection by double voltages | |
| CN216449021U (en) | Switching value input/output switching circuit of instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190322 |