CN206807290U - A kind of smart electronicses pressure regulator - Google Patents
A kind of smart electronicses pressure regulator Download PDFInfo
- Publication number
- CN206807290U CN206807290U CN201720722505.8U CN201720722505U CN206807290U CN 206807290 U CN206807290 U CN 206807290U CN 201720722505 U CN201720722505 U CN 201720722505U CN 206807290 U CN206807290 U CN 206807290U
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Abstract
It the utility model is related to a kind of smart electronicses pressure regulator, comprising, control terminal, and the current rectifying and wave filtering circuit being sequentially connected, voltage sampling circuit, amplifying circuit, buck modular converter, step-up/step-down circuit, mu balanced circuit, voltage sampling circuit includes the voltage comparator circuit being connected with each other successively, photoelectrical coupler, level shifting circuit and smoothed filter circuit, the in-phase input end of electronic pressure controller input and voltage comparator circuit connects, the negative electrode pin of the signal input part of photoelectrical coupler and the signal output part of voltage comparator circuit connect, the colelctor electrode pin of photoelectric coupler output end and the signal input part of level shifting circuit connect, the signal input part of smoothed filter circuit and the signal output part of level shifting circuit connect, the signal output part of smoothed filter circuit is connected in parallel to voltage-stabiliser tube.The utility model can automatically adjust to voltage, and use mu balanced circuit, can ensure output voltage stabilization, improve pressure regulation efficiency.
Description
Technical field
The utility model belongs to electronic pressure regulating field, is related to a kind of smart electronicses pressure regulator.
Background technology
Electronic type pressure regulator is used to enable home appliance or Medical Devices normal work in low-pressure area regulation voltage, and its is main
It is that it can complete to adjust to a certain extent by synchronous sampling circuit, amplifying circuit, current rectifying and wave filtering circuit and tune control circuit composition
Pressure acts on, but it is only suitable for working in the case where setting voltage status, when unexpected voltage is raised and lowered, just very possible damage
Pressure regulator, easily triggers accident, and usage safety performance is relatively low.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of smart electronicses pressure regulator.
To reach above-mentioned purpose, the utility model provides following technical scheme：
A kind of smart electronicses pressure regulator, comprising control terminal, and current rectifying and wave filtering circuit, the voltage sample electricity being sequentially connected
Road, amplifying circuit, buck modular converter, step-up/step-down circuit, mu balanced circuit, the voltage sampling circuit include mutually interconnecting successively
The voltage comparator circuit connect, photoelectrical coupler U1, level shifting circuit and smoothed filter circuit, the input of smart electronicses pressure regulator
End is connected with the in-phase input end of the voltage comparator circuit, the negative electrode pin of described photoelectrical coupler U1 signal input part
It is connected with the signal output part of voltage comparator circuit, the colelctor electrode pins of photoelectrical coupler U1 output ends and level shifting circuit
Signal input part connects, and the signal input part of described smoothed filter circuit and the signal output part of level shifting circuit connect,
The signal output part of the smoothed filter circuit is connected in parallel to voltage-stabiliser tube；
The buck modular converter includes inductance, first switch, second switch, and connection input in inductance one end is another
End connects resistance A one end, electric capacity A one end, resistance A other ends connection first switch one end, first switch other end difference respectively
Electric capacity B one end and control terminal are connected, electric capacity B other ends connection second switch one end is simultaneously grounded, and the second switch other end connects respectively
Electric capacity A one end and control terminal are connect, electric capacity A is connected between output cathode node and output negative pole node；
The mu balanced circuit includes the first transistor, feedback control circuit and constant-current circuit, and the first transistor is NPN
Transistor npn npn, the emitter-base bandgap grading of the first transistor are connected to voltage output end, and colelctor electrode is connected to voltage input end, the feedback
Control circuit includes first resistor, partial pressure branch road, voltage regulation unit and second transistor, and partial pressure branch road one end ground connection is another
End is connected to the voltage input end, and the partial pressure branch road includes second resistance and variable resistor, and the second transistor is NPN
Transistor npn npn, the second transistor base stage are connected between the second resistance and the variable resistor, described in emitter-base bandgap grading process
Voltage regulation unit is grounded, and is also passed through the first resistor and is connected to the voltage output end, colelctor electrode is connected to the first crystal
The base stage of pipe, the constant-current circuit are used for providing electric current for the colelctor electrode of the first transistor and the second transistor；
The mu balanced circuit also includes the first electric capacity, the base stage of first capacitance connection to the first transistor and institute
State between voltage output end.
Further, the constant-current circuit includes first resistor, the first diode, the second diode, RC parallel circuits and
Two-transistor, the second transistor are PNP transistors, and the second transistor base stage is connect by the RC parallel circuits
Ground, while also pass through the second diode and the first diode successively, the voltage input end is connected to, emitter-base bandgap grading passes through described first
Resistance is connected to the voltage input end, and colelctor electrode is connected to the base stage of the first transistor.
Further, the voltage regulation unit is voltage-regulator diode.
Further, the step-up/step-down circuit is the step-up transformer and step-down transformer being connected in parallel.
The beneficial effects of the utility model are：Voltage can be automatically adjusted, and use mu balanced circuit, can
Ensure output voltage stabilization, improve pressure regulation efficiency；The buck modular converter that the utility model uses can realize automatic boosting
And decompression, without being controlled by selecting switch, reduce capacity loss, improve conversion efficiency.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, the utility model provides as follows
Accompanying drawing illustrates：
Fig. 1 is the utility model structure chart；
Fig. 2 is the voltage sampling circuit that the utility model is selected；
Fig. 3 is the buck modular converter that the utility model is selected；
Fig. 4 is the mu balanced circuit that the utility model is selected.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
It is structure chart of the present utility model with reference to figure 1, comprising control terminal, and current rectifying and wave filtering circuit, the electricity being sequentially connected
Press sample circuit, amplifying circuit, buck modular converter, step-up/step-down circuit, mu balanced circuit.
Shown in voltage sampling circuit reference picture 2, input voltage obtains voltage signal after current rectifying and wave filtering circuit rectification, electricity
Resistance R1, resistance R2 carry out partial pressure to it, and voltage comparator U2 in-phase input end pin 3 is connected to first resistor R1, the second electricity
The node between R2 is hindered, the voltage on resistance R2 is as sampled voltage；Voltage comparator U2 inverting input pin 2 is connected to
Node between resistance R3, resistance R4, the voltage on resistance R4 is as reference voltage.Voltage comparator U2 signal output part pins
The square-wave signal driving photoelectrical coupler U1 of 1 output is operated, and the signal of photoelectrical coupler U1 output ends passes through level conversion
Exported after circuit and smoothed filter circuit the disposal of gentle filter.
Buck modular converter is as shown in figure 3, as shown in figure 3, including inductance L, first switch S1, second switch S2, electricity
Feel L one end connection input, the other end connects resistance R11 one end, electric capacity C6 one end, resistance R11 other ends connection first respectively
Switch S1 one end, the first switch S1 other ends connect electric capacity C5 one end and control signal end respectively, electric capacity C5 other ends connection the
Two switch S2 one end are simultaneously grounded, and the second switch S2 other ends connect electric capacity C6 one end and control signal end respectively, and electric capacity C6 is connected on
Between output cathode node and output negative pole node.During work, second switch S2 conductings, first switch S1 disconnects, and inductance 15 enters
Row energy storage, electric current flow through inductance 15 by input, then flow into ground, and now first switch S1 disconnects, i.e., in blocking state, block
From input to the loop output negative pole node, next, second switch S2 disconnects, first switch S1 conductings, inductance 15
Releasing energy, electric current flows to inductance 15 by input, then by resistance R11 and electric capacity C6, flows to first switch S1, and now first
Switch S1 to connect, electric current through the first switch S1, returns to input, form the loop to release energy again.
Mu balanced circuit includes as shown in Figure 4, the first transistor T1, feedback control circuit and constant-current circuit, the first transistor
T1 is NPN transistor, and the first transistor T1 emitter-base bandgap grading is connected to voltage output end, and colelctor electrode is connected to voltage input end, instead
Feedback control circuit includes first resistor R14, partial pressure branch road, voltage regulation unit and second transistor T3, and partial pressure branch road one end is grounded, separately
One end is connected to voltage input end, and partial pressure branch road includes second resistance R15 and variable resistor RA, and second transistor T3 is NPN type
Transistor, second transistor T3 base stages are connected between second resistance R15 and variable resistor RA, and emitter-base bandgap grading passes through the voltage regulation unit
Ground connection, also passes through first resistor R14 and is connected to voltage output end, colelctor electrode is connected to the first transistor T1 base stage, Constant Electric Current
Road is used for providing electric current for the first transistor T1 and the second crystal T3 pipes colelctor electrode.
Smart electronicses pressure regulator described in the utility model can automatically adjust to voltage, and using voltage stabilizing electricity
Road, output voltage stabilization can be ensured, improve pressure regulation efficiency；The buck modular converter that the utility model uses can be realized certainly
Dynamic boosting and decompression, without being controlled by selecting switch, reduce capacity loss, improve conversion efficiency.
Finally illustrate, preferred embodiment above is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
The utility model has been described in detail by above preferred embodiment for pipe, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The scope of restriction.
Claims (4)
- A kind of 1. smart electronicses pressure regulator, it is characterised in that：Comprising, control terminal, and current rectifying and wave filtering circuit, the electricity being sequentially connected Press sample circuit, amplifying circuit, buck modular converter, step-up/step-down circuit, mu balanced circuit, the voltage sampling circuit include according to The voltage comparator circuit of secondary interconnection, photoelectrical coupler (U1), level shifting circuit and smoothed filter circuit, the intelligence Electronic pressure controller input is connected with the in-phase input end of the voltage comparator circuit, and the signal of the photoelectrical coupler (U1) is defeated Enter the negative electrode pin at end and the signal output part of voltage comparator circuit connects, the colelctor electrode pin of photoelectrical coupler (U1) output end It is connected with the signal input part of level shifting circuit, the signal input part of the smoothed filter circuit and the letter of level shifting circuit The connection of number output end, the signal output part of the smoothed filter circuit are connected in parallel to voltage-stabiliser tube；The buck modular converter includes inductance, first switch, second switch, inductance one end connection input, the other end point Not Lian Jie resistance A one end, electric capacity A one end, resistance A other ends connection first switch one end, the first switch other end connects respectively Electric capacity B one end and control terminal, electric capacity B other ends connection second switch one end are simultaneously grounded, and the second switch other end connects electricity respectively Hold A one end and control terminal, electric capacity A are connected between output cathode node and output negative pole node；The mu balanced circuit includes the first transistor, feedback control circuit and constant-current circuit, and the first transistor is that NPN type is brilliant Body pipe, the emitter-base bandgap grading of the first transistor are connected to voltage output end, and colelctor electrode is connected to voltage input end, the feedback control Circuit includes first resistor, partial pressure branch road, voltage regulation unit and second transistor, partial pressure branch road one end ground connection, and the other end connects The voltage input end is connected to, the partial pressure branch road includes second resistance and variable resistor, and the second transistor is NPN type crystalline substance Body pipe, the second transistor base stage are connected between the second resistance and the variable resistor, and emitter-base bandgap grading passes through the voltage stabilizing Unit is grounded, and is also passed through the first resistor and is connected to the voltage output end, colelctor electrode is connected to the first transistor Base stage, the constant-current circuit are used for providing electric current for the colelctor electrode of the first transistor and the second transistor；The mu balanced circuit also includes the first electric capacity, the base stage of first capacitance connection to the first transistor and the electricity Between pressure output end.
- 2. smart electronicses pressure regulator according to claim 1, it is characterised in that：The constant-current circuit includes first resistor, First diode, the second diode, RC parallel circuits and second transistor, the second transistor is PNP transistor, described Second transistor base stage is grounded by the RC parallel circuits, while also passes through the second diode and the first diode successively, even The voltage input end is connected to, emitter-base bandgap grading is connected to the voltage input end by the first resistor, and colelctor electrode is connected to described The base stage of the first transistor.
- 3. smart electronicses pressure regulator according to claim 1, it is characterised in that：The voltage regulation unit is voltage-regulator diode.
- 4. smart electronicses pressure regulator according to claim 1, it is characterised in that：The step-up/step-down circuit is included and is connected in parallel Step-up transformer and step-down transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722505.8U CN206807290U (en) | 2017-06-19 | 2017-06-19 | A kind of smart electronicses pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722505.8U CN206807290U (en) | 2017-06-19 | 2017-06-19 | A kind of smart electronicses pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206807290U true CN206807290U (en) | 2017-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720722505.8U Expired - Fee Related CN206807290U (en) | 2017-06-19 | 2017-06-19 | A kind of smart electronicses pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206807290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332027A (en) * | 2020-03-13 | 2020-06-26 | 厦门汉印电子技术有限公司 | Color printer and heating voltage control circuit and method thereof |
-
2017
- 2017-06-19 CN CN201720722505.8U patent/CN206807290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332027A (en) * | 2020-03-13 | 2020-06-26 | 厦门汉印电子技术有限公司 | Color printer and heating voltage control circuit and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180619 |