CN204515580U - A kind of Intelligent power source based on converter regulation output voltage - Google Patents
A kind of Intelligent power source based on converter regulation output voltage Download PDFInfo
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- CN204515580U CN204515580U CN201520172757.9U CN201520172757U CN204515580U CN 204515580 U CN204515580 U CN 204515580U CN 201520172757 U CN201520172757 U CN 201520172757U CN 204515580 U CN204515580 U CN 204515580U
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- operational amplifier
- converter
- output terminal
- resistance
- amplifying circuit
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- Control Of Voltage And Current In General (AREA)
Abstract
The utility model discloses a kind of Intelligent power source based on converter regulation output voltage, comprise single-chip microcomputer, button, display, D/A converter and amplifying circuit.Described amplifying circuit comprises 4 operational amplifier A 1, A2, A4 and A5 and a phase inverter A3.Intelligent power source based on converter regulation output voltage of the present utility model adopts the ripe device composition such as single-chip microcomputer, D/A converter and operational amplifier to amplify and control circuit, easy to implement, voltage is accurately adjustable, and amplifying circuit designs based on negative-feedback principle, good in anti-interference performance.
Description
Technical field
The utility model relates to a kind of Intelligent power source based on converter regulation output voltage.
Background technology
Existing voltage source, its amplifying circuit is comparatively complicated, and amplifying circuit lacks feedback, easily produces fluctuation because of interference to output voltage, affects voltage output precision, therefore, is necessary to design a kind of novel Intelligent power source.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Intelligent power source based on converter regulation output voltage, should be easy to implement based on the Intelligent power source of converter regulation output voltage, and voltage is accurately adjustable, good in anti-interference performance.
The technical solution of utility model is as follows:
Based on an Intelligent power source for converter regulation output voltage, it is characterized in that, comprise single-chip microcomputer, button, display, D/A converter and amplifying circuit;
Button is all connected with single-chip microcomputer with display, and the input end of D/A converter connects the output port of single-chip microcomputer, the input end of the output termination amplifying circuit of D/A converter, and the output terminal of amplifying circuit is the voltage output end of Intelligent power source;
Described amplifying circuit comprises 4 operational amplifier A 1, A2, A4 and A5 and a phase inverter A3;
The in-phase input end ground connection of operational amplifier A 1, the inverting input of operational amplifier A 1 connects the output terminal of D/A converter by resistance R1; The output terminal of operational amplifier A 1 connects the in-phase input end of operational amplifier A 5 by resistance Ri; The in-phase input end of operational amplifier A 5 is the output terminal of amplifying circuit;
The inverting input of operational amplifier A 5 and the output terminal short circuit of operational amplifier A 5; The output terminal of operational amplifier A 5 connects the inverting input of operational amplifier A 4 through resistance R10, the in-phase input end of operational amplifier A 4 is by resistance R11 ground connection, between the in-phase input end of operational amplifier A 4 and the output terminal of operational amplifier A 4, cross-over connection has resistance Rv, the output terminal of operational amplifier A 4 connects the in-phase input end of operational amplifier A 2 through phase inverter A3, the inverting input of operational amplifier A 2 is through resistance R5 ground connection; Between the inverting input of operational amplifier A 2 and the output terminal of operational amplifier A 2, cross-over connection has resistance R4; Resistance R7 is connected between the output terminal of operational amplifier A 2 and the inverting input of operational amplifier A 1; The resistance of resistance R4 and R5 is equal.
The described Intelligent power source based on converter regulation output voltage also comprises A/D converter; The output terminal of the input termination amplifying circuit of A/D converter, the output terminal of A/D converter connects the input port of single-chip microcomputer.
Single-chip microcomputer is ripe integrated chip, and the utility model just utilizes its intrinsic function, does not relate to progresses and methods.
Beneficial effect:
Intelligent power source based on converter regulation output voltage of the present utility model adopts the ripe device composition such as single-chip microcomputer, D/A converter and operational amplifier to amplify and control circuit, easy to implement, voltage is accurately adjustable, and amplifying circuit designs based on negative-feedback principle, good in anti-interference performance.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the Intelligent power source based on converter regulation output voltage.
Fig. 2 is the schematic diagram of amplifying circuit.
Embodiment
Below with reference to the drawings and specific embodiments, the utility model is described in further details:
As shown in Figure 1-2, a kind of Intelligent power source based on converter regulation output voltage, is characterized in that, comprises single-chip microcomputer, button, display, D/A converter and amplifying circuit;
Button is all connected with single-chip microcomputer with display, and the input end of D/A converter connects the output port of single-chip microcomputer, the input end of the output termination amplifying circuit of D/A converter, and the output terminal of amplifying circuit is the voltage output end of Intelligent power source;
Described amplifying circuit comprises 4 operational amplifier A 1, A2, A4 and A5 and a phase inverter A3;
The in-phase input end ground connection of operational amplifier A 1, the inverting input of operational amplifier A 1 connects the output terminal of D/A converter by resistance R1; The output terminal of operational amplifier A 1 connects the in-phase input end of operational amplifier A 5 by resistance Ri; The in-phase input end of operational amplifier A 5 is the output terminal of amplifying circuit;
The inverting input of operational amplifier A 5 and the output terminal short circuit of operational amplifier A 5; The output terminal of operational amplifier A 5 connects the inverting input of operational amplifier A 4 through resistance R10, the in-phase input end of operational amplifier A 4 is by resistance R11 ground connection, between the in-phase input end of operational amplifier A 4 and the output terminal of operational amplifier A 4, cross-over connection has resistance Rv, the output terminal of operational amplifier A 4 connects the in-phase input end of operational amplifier A 2 through phase inverter A3, the inverting input of operational amplifier A 2 is through resistance R5 ground connection; Between the inverting input of operational amplifier A 2 and the output terminal of operational amplifier A 2, cross-over connection has resistance R4; Resistance R7 is connected between the output terminal of operational amplifier A 2 and the inverting input of operational amplifier A 1; The resistance of resistance R4 and R5 is equal.
The described Intelligent power source based on converter regulation output voltage also comprises A/D converter; The output terminal of the input termination amplifying circuit of A/D converter, the output terminal of A/D converter connects the input port of single-chip microcomputer.
The principle of work of amplifier illustrates: as Fig. 2, according to negative-feedback circuit characteristic, when circuit reaches stable and R1=R7; , any deviation of V1 and VF V1+VF=0 must be had to set up, because, all can cause feedback, automatically reach balance, finally makes V1+VF=0 set up;
Therefore have:
If R4=R5, and V1=-VF, simplify above-mentioned formula, obtain:
Because R10 and RV is fixed resistance value, therefore VO is also fixed value.
The course of work illustrates:
By user by the concrete voltage parameter of key-press input, single-chip microcomputer provides based on the voltage parameter of input end and generates Digital Signals D/A converter and export a certain level value V1, and producing output voltage VO by amplifying circuit is that debt RL powers.A/D converter gathers output voltage and shows over the display, and display also shows the voltage of setting.
User passes through the different value of key-press input, then can form different voltage at the output terminal of Intelligent power source and export, realize the adjustment of voltage, this Intelligent power source is simple to operate, output voltage stabilization.
Claims (2)
1. based on an Intelligent power source for converter regulation output voltage, it is characterized in that, comprise single-chip microcomputer, button, display, D/A converter and amplifying circuit;
Button is all connected with single-chip microcomputer with display, and the input end of D/A converter connects the output port of single-chip microcomputer, the input end of the output termination amplifying circuit of D/A converter, and the output terminal of amplifying circuit is the voltage output end of Intelligent power source;
Described amplifying circuit comprises 4 operational amplifier A 1, A2, A4 and A5 and a phase inverter A3;
The in-phase input end ground connection of operational amplifier A 1, the inverting input of operational amplifier A 1 connects the output terminal of D/A converter by resistance R1; The output terminal of operational amplifier A 1 connects the in-phase input end of operational amplifier A 5 by resistance Ri; The in-phase input end of operational amplifier A 5 is the output terminal of amplifying circuit;
The inverting input of operational amplifier A 5 and the output terminal short circuit of operational amplifier A 5; The output terminal of operational amplifier A 5 connects the inverting input of operational amplifier A 4 through resistance R10, the in-phase input end of operational amplifier A 4 is by resistance R11 ground connection, between the in-phase input end of operational amplifier A 4 and the output terminal of operational amplifier A 4, cross-over connection has resistance Rv, the output terminal of operational amplifier A 4 connects the in-phase input end of operational amplifier A 2 through phase inverter A3, the inverting input of operational amplifier A 2 is through resistance R5 ground connection; Between the inverting input of operational amplifier A 2 and the output terminal of operational amplifier A 2, cross-over connection has resistance R4; Resistance R7 is connected between the output terminal of operational amplifier A 2 and the inverting input of operational amplifier A 1; The resistance of resistance R4 and R5 is equal.
2. the Intelligent power source based on converter regulation output voltage according to claim 1, is characterized in that, also comprise A/D converter; The output terminal of the input termination amplifying circuit of A/D converter, the output terminal of A/D converter connects the input port of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172757.9U CN204515580U (en) | 2015-03-18 | 2015-03-18 | A kind of Intelligent power source based on converter regulation output voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172757.9U CN204515580U (en) | 2015-03-18 | 2015-03-18 | A kind of Intelligent power source based on converter regulation output voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204515580U true CN204515580U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520172757.9U Expired - Fee Related CN204515580U (en) | 2015-03-18 | 2015-03-18 | A kind of Intelligent power source based on converter regulation output voltage |
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| CN (1) | CN204515580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054996A (en) * | 2016-07-18 | 2016-10-26 | 无锡市同翔科技有限公司 | Controllable small-signal voltage source plate |
-
2015
- 2015-03-18 CN CN201520172757.9U patent/CN204515580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054996A (en) * | 2016-07-18 | 2016-10-26 | 无锡市同翔科技有限公司 | Controllable small-signal voltage source plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150729 Termination date: 20160318 |