CN108153361A - A kind of DC-stabilized circuit - Google Patents
A kind of DC-stabilized circuit Download PDFInfo
- Publication number
- CN108153361A CN108153361A CN201711439368.8A CN201711439368A CN108153361A CN 108153361 A CN108153361 A CN 108153361A CN 201711439368 A CN201711439368 A CN 201711439368A CN 108153361 A CN108153361 A CN 108153361A
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- Prior art keywords
- resistance
- module
- voltage
- connection
- chip
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
Abstract
The invention discloses a kind of DC-stabilized circuits; including power module, reference voltage module, automatic Regulation module and under-voltage protective module; the power module connects benchmark voltage module and automatic Regulation module respectively; reference voltage module is also connected with automatic Regulation module, and automatic Regulation module is also connected with under-voltage protective module.DC-stabilized circuit circuit of the present invention uses the dual power supply mode that alternating current and accumulator are combined, the loss that the stoppage in transit of device generates when such design can prevent from encountering alternating current power-off, it is set by reference voltage, the combination of inductance, voltage comparator and triode, realize the purpose of Intelligent Dynamic voltage stabilizing output, circuit also has the function of the alarm that has a power failure simultaneously, therefore has the advantages that degree of intelligence is high, easy to use and vdiverse in function.
Description
Technical field
The present invention relates to a kind of power circuit, specifically a kind of DC-stabilized circuit.
Background technology
With the continuous improvement of people's living standards, electronic equipment has become an essential part in life, especially
It is that various intelligent communication devices bring great convenience to people’s lives, work, and this kind of electronic device has required one
The constant voltage dc source that a precision is higher, performance is stablized, the big multi-functional single, circuit production of existing communication apparatus power supply is more
Complexity, there are certain shortcomings on voltage regulation performance.
Invention content
The purpose of the present invention is to provide a kind of DC-stabilized circuit, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides following technical solution：
A kind of DC-stabilized circuit, including power module, reference voltage module, automatic Regulation module and under-voltage protection mould
Block, the power module connect benchmark voltage module and automatic Regulation module respectively, and reference voltage module is also connected with automatic Regulation
Module, automatic Regulation module are also connected with under-voltage protective module.
Preferred embodiment as the present invention：The power module includes resistance R7, voltage stabilizing chip IC2, rectifier bridge T and filtering
One end connection capacitance C3 and 220V alternating current of capacitance C2, the resistance R7, the other end connection capacitance C3's of resistance R7 is another
End and the port 1 of rectifier bridge T, the port 2 of rectifier bridge T connect the voltage input end IN and capacitance C2 of voltage stabilizing chip IC2, capacitance C2
The anode of other end connection diode D2, the cathode of accumulator E, the ground terminal of voltage stabilizing chip IC2, rectifier bridge T 4 and of port
Negative pole of output end, the cathode of output terminal OUT connection diodes D2, the anode of accumulator E and the output of voltage stabilizing chip IC2 are rectified
Pole, the model LM7812 of chip IC 2.
Preferred embodiment as the present invention：The reference voltage module includes resistance R2 and three end adjustable reference source P, described
The output head anode of one end connection power module of resistance R2, the other end of resistance R2 connect the cathode of three end adjustable reference source P,
The negative pole of output end of the anode connection power module of three end adjustable reference source P.
Preferred embodiment as the present invention：The automatic Regulation module includes chip IC 1, resistance R5, resistance R6 and current potential
Device RP1, the foot 1 of chip IC 1 connect the cathode of three end adjustable reference source P, and the foot 3 of chip IC 1 connects resistance R5 and resistance R6, electricity
The negative pole of output end of the other end connection power module of the other end connection potentiometer RP1, potentiometer RP1 of R6 is hindered, chip IC 1
Foot 4 connects resistance R3, the base stage of the other end connecting triode V2 of resistance R3, the emitter connection resistance R1 of triode V2, electricity
The output head anode of the other end connection power module of R1 is hindered, the collector connection inductance L1 of triode V2, inductance L1's is another
The other end of end connection resistance R5.
Preferred embodiment as the present invention：The under-voltage protective module includes triode V1, resistance R4, diode D1 and loudspeaker
The anode and inductance L1 of one end connection diode D1 of B, resistance R4, the base stage of the other end connecting triode V1 of resistance R4,
The collector connection loudspeaker B of the cathode of the emitter connection diode D1 of triode V1, capacitance C1 and load A, triode V1, loudspeaker
The other end of the other end connection capacitance C1 of B loads the other end of A and the negative pole of output end of power module.
Preferred embodiment as the present invention：The model TL431 of the three ends adjustable reference source P.
Preferred embodiment as the present invention：The model LM321 of the chip IC 1.
Compared with prior art, the beneficial effects of the invention are as follows：DC-stabilized circuit circuit of the present invention uses alternating current
The dual power supply mode being combined with accumulator, the stoppage in transit generation of device when such design can prevent from encountering alternating current power-off
Loss, set by reference voltage, the combination of inductance, voltage comparator and triode, realize Intelligent Dynamic voltage stabilizing output
Purpose, while circuit also has the function of the alarm that has a power failure, therefore high, easy to use and vdiverse in function excellent with degree of intelligence
Point.
Description of the drawings
Fig. 1 is the circuit diagram of DC-stabilized circuit.
Fig. 2 is the circuit diagram of power module.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, a kind of DC-stabilized circuit, including power module, reference voltage module, automatic Regulation mould
Block and under-voltage protective module, the power module includes resistance R7, voltage stabilizing chip IC2, rectifier bridge T and filter capacitor C2, described
Reference voltage module includes resistance R2 and three end adjustable reference source P, and under-voltage protective module includes triode V1, resistance R4, two poles
Pipe D1 and loudspeaker B, the automatic Regulation module include chip IC 1, resistance R5, resistance R6 and potentiometer RP1, the resistance R7's
One end connects capacitance C3 and 220V alternating current, the other end of other end connection capacitance C3 of resistance R7 and the port 1 of rectifier bridge T,
The port 2 of rectifier bridge T connects the voltage input end IN and capacitance C2 of voltage stabilizing chip IC2, the other end connection diode of capacitance C2
The anode of D2, the cathode of accumulator E, the ground terminal of voltage stabilizing chip IC2, the port 4 of rectifier bridge T and negative pole of output end, voltage stabilizing core
The cathode of the output terminal OUT connection diodes D2 of piece IC2, the anode and output head anode of accumulator E, the model of chip IC 2
LM7812.The output head anode of one end connection power module of the resistance R2, the other end of resistance R2 connect three end adjustable substrates
The cathode of quasi- source P, the negative pole of output end of the anode connection power module of three end adjustable reference source P.The connection of foot 1 three of chip IC 1
The cathode of adjustable reference source P is held, the foot 3 of chip IC 1 connects resistance R5 and resistance R6, the other end connection potentiometer of resistance R6
The negative pole of output end of the other end connection power module of RP1, potentiometer RP1, the foot 4 of chip IC 1 connect resistance R3, resistance R3's
The base stage of other end connecting triode V2, the other end connection power supply mould of emitter connection the resistance R1, resistance R1 of triode V2
The output head anode of block, the other end of the other end connection resistance R5 of collector connection the inductance L1, inductance L1 of triode V2.Electricity
Hinder the anode and inductance L1 of one end connection diode D1 of R4, the base stage of the other end connecting triode V1 of resistance R4, triode
The collector connection loudspeaker B of the cathode of the emitter connection diode D1 of V1, capacitance C1 and load A, triode V1, loudspeaker B's
The other end of other end connection capacitance C1 loads the other end of A and the negative pole of output end of power module.
The present invention operation principle be：The circuit given in Fig. 1 is powered by power module, and entire lighting lamp circuit passes through UPS
Power supply is powered, and ups power physical circuit is as shown in Fig. 2, it includes the capacitance-resistance voltage reduction circuit of resistance R7 and capacitance C3 compositions, bridge type
Rectification circuit T, voltage stabilizing chip IC2, filter capacitor C2, zener diode D2 and standby battery E, power circuit is by the city of 220V
Piezoelectric voltage is converted into 12V DC electricity output, and also has the function of dual power supply.Resistance R1 in circuit, three ends are adjustable
A reference source P forms reference voltage module, and reference voltage, under original state, chip are provided to 1 foot of reverse input end of chip IC 2
The 3 foot voltage of in-phase input end of IC1 is less than its 1 foot voltage of inverting input, therefore it exports low level, PNP type triode V1
Conducting when triode V1 is connected, forces electric current to be flowed through from inductance L1, the voltage raising at load A both ends is added in, so that core
The 3 foot voltages of piece IC1 rise, and when 3 feet of IC1 are higher than 1 foot voltage, IC1 outputs switch to high level, V2 cut-offs, output voltage
Constantly decline, when 1 foot of IC1 is less than 3 foot voltage, IC1 exports low level again, and V1 repeats to be connected, and output voltage is increased, reached again
To the purpose of voltage stabilizing, the value of potentiometer RP1 is adjusted, you can change voltage stabilizing value, achieve the purpose that voltage is adjusted, two poles in circuit
Pipe D1, capacitance C1, triode V1 and loudspeaker B composition under-voltage protective module, when VCC is normal, triode V1 obtained by resistance R4 it is electric,
V1 ends, and loudspeaker B does not work, and when encountering VCC power failures, the base voltage of triode V1 disappears, and capacitance C1 passes through triode V1's
Emitter discharges, therefore V1 is connected, and loudspeaker B sends out alarm.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of DC-stabilized circuit, including power module, reference voltage module, automatic Regulation module and under-voltage protection mould
Block, which is characterized in that the power module connects benchmark voltage module and automatic Regulation module respectively, and reference voltage module also connects
Dynamic voltage regulating module is connected to, automatic Regulation module is also connected with under-voltage protective module.
2. a kind of DC-stabilized circuit according to claim 1, which is characterized in that the power module includes resistance
R7, voltage stabilizing chip IC2, rectifier bridge T and filter capacitor C2, the resistance R7 one end connection capacitance C3 and 220V alternating current, electricity
The other end of other end connection capacitance C3 of R7 and the port 1 of rectifier bridge T are hindered, the port 2 of rectifier bridge T connects voltage stabilizing chip IC2
Voltage input end IN and the anode of other end connection diode D2 of capacitance C2, capacitance C2, cathode, the voltage stabilizing core of accumulator E
The ground terminal of piece IC2, the port 4 of rectifier bridge T and negative pole of output end, the output terminal OUT connection diodes D2's of voltage stabilizing chip IC2
The anode and output head anode of cathode, accumulator E, the model LM7812 of chip IC 2.
3. a kind of DC-stabilized circuit according to claim 1, which is characterized in that the reference voltage module includes
One end of resistance R2 and three end adjustable reference source P, the resistance R2 connect the output head anode of power module, and resistance R2's is another
The cathode of three end adjustable reference source P of end connection, the negative pole of output end of the anode connection power module of three end adjustable reference source P.
4. a kind of DC-stabilized circuit according to claim 1, which is characterized in that the automatic Regulation module includes
Chip IC 1, resistance R5, resistance R6 and potentiometer RP1, the foot 1 of chip IC 1 connect the cathode of three end adjustable reference source P, chip
The foot 3 of IC1 connects resistance R5 and resistance R6, the other end connection of the other end connection potentiometer RP1, potentiometer RP1 of resistance R6
The negative pole of output end of power module, the connection resistance R3 of foot 4 of chip IC 1, the base stage of the other end connecting triode V2 of resistance R3,
The output head anode of the other end connection power module of emitter connection the resistance R1, resistance R1 of triode V2, triode V2's
Collector connects inductance L1, the other end of the other end connection resistance R5 of inductance L1.
5. a kind of DC-stabilized circuit according to claim 1, which is characterized in that the under-voltage protective module includes
Triode V1, resistance R4, diode D1 and loudspeaker B, the anode and inductance L1 of one end connection diode D1 of resistance R4, resistance R4
Other end connecting triode V1 base stage, cathode, capacitance C1 and the load A of the emitter connection diode D1 of triode V1,
The other end of the other end connection capacitance C1 of collector connection the loudspeaker B, loudspeaker B of triode V1, the other end and power supply for loading A
The negative pole of output end of module.
A kind of 6. DC-stabilized circuit according to claim 3, which is characterized in that the three ends adjustable reference source P
Model TL431.
A kind of 7. DC-stabilized circuit according to claim 4, which is characterized in that the model of the chip IC 1
LM321。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439368.8A CN108153361A (en) | 2017-12-27 | 2017-12-27 | A kind of DC-stabilized circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439368.8A CN108153361A (en) | 2017-12-27 | 2017-12-27 | A kind of DC-stabilized circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108153361A true CN108153361A (en) | 2018-06-12 |
Family
ID=62462288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439368.8A Pending CN108153361A (en) | 2017-12-27 | 2017-12-27 | A kind of DC-stabilized circuit |
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| CN (1) | CN108153361A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765982A (en) * | 2019-01-30 | 2019-05-17 | 青岛黄海学院 | A kind of power circuit for computer |
| CN113406412A (en) * | 2021-06-03 | 2021-09-17 | 东风柳州汽车有限公司 | Chassis test system and equipment thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020310A (en) * | 2016-07-14 | 2016-10-12 | 成都市思卡利科技有限公司 | Voltage stabilizing circuit adopting full-wave rectification |
| CN206004405U (en) * | 2016-09-26 | 2017-03-08 | 安徽特诺物联网设备有限公司 | A kind of internet of things equipment emergency supply circuit |
| CN206370678U (en) * | 2016-12-29 | 2017-08-01 | 陕西学前师范学院 | A kind of USB interface of computer output voltage detects protection circuit |
| CN206573966U (en) * | 2017-03-08 | 2017-10-20 | 广西职业技术学院 | A kind of+5V D.C. regulated power supplies of low voltage difference |
| CN207623823U (en) * | 2017-12-27 | 2018-07-17 | 郑良田 | A kind of DC-stabilized circuit |
-
2017
- 2017-12-27 CN CN201711439368.8A patent/CN108153361A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020310A (en) * | 2016-07-14 | 2016-10-12 | 成都市思卡利科技有限公司 | Voltage stabilizing circuit adopting full-wave rectification |
| CN206004405U (en) * | 2016-09-26 | 2017-03-08 | 安徽特诺物联网设备有限公司 | A kind of internet of things equipment emergency supply circuit |
| CN206370678U (en) * | 2016-12-29 | 2017-08-01 | 陕西学前师范学院 | A kind of USB interface of computer output voltage detects protection circuit |
| CN206573966U (en) * | 2017-03-08 | 2017-10-20 | 广西职业技术学院 | A kind of+5V D.C. regulated power supplies of low voltage difference |
| CN207623823U (en) * | 2017-12-27 | 2018-07-17 | 郑良田 | A kind of DC-stabilized circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765982A (en) * | 2019-01-30 | 2019-05-17 | 青岛黄海学院 | A kind of power circuit for computer |
| CN113406412A (en) * | 2021-06-03 | 2021-09-17 | 东风柳州汽车有限公司 | Chassis test system and equipment thereof |
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| PB01 | Publication | ||
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Application publication date: 20180612 |