CN205539148U - Nonsinusoidal waveform's peak value and valley voltage detection circuit - Google Patents
Nonsinusoidal waveform's peak value and valley voltage detection circuit Download PDFInfo
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- CN205539148U CN205539148U CN201620118033.0U CN201620118033U CN205539148U CN 205539148 U CN205539148 U CN 205539148U CN 201620118033 U CN201620118033 U CN 201620118033U CN 205539148 U CN205539148 U CN 205539148U
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Abstract
The utility model discloses a nonsinusoidal waveform's peak value and valley voltage detection circuit, including comparator U1, comparator U2, resistance R1, electric capacity C1, diode D1 and resistance R5, incoming signal vi and electric capacity C3 are connected respectively to resistance R5 one end, and the resistance R5 other end is connecting resistance R6 and comparator U1 homophase end respectively, and comparator U2 homophase end is connected to the resistance R6 other end, and comparator U1 inverting terminal connects the anodal and resistance R1 of diode D2 respectively, and comparator U1 output is connected respectively to diode D2 negative pole and diode D1 is anodal, and output V1, the resistance R1 other end and resistance R3 are connected respectively to diode D1 negative pole. The utility model discloses nonsinusoidal waveform's peak value and valley voltage detection circuit adopts the dual comparator as controlling element, can effectively detect wave form peak value and valley point voltage, and circuit structure is simple, and is with low costs, small, and application scope is extensive.
Description
Technical field
This utility model relates to a kind of testing circuit, the peak value of a kind of nonsinusoidal waveform and valley point voltage testing circuit.
Background technology
At power domain; often use various waveshape signals and be modulated waveshape signal analyzing; the common parameters of waveform signal analysing is included: frequency, wavelength, peak and trough valley etc.; its medium wave peak refers to that ripple is in the range of a wavelength; the maximum of wave amplitude, minima on the other side is then referred to as trough.As a example by shear wave, the peak of projection is exactly crest, and the minimum point sagged is exactly trough.This utility model provides peak value and the valley point voltage testing circuit of the nonsinusoidal waveform of a kind of low cost, and the research to nonsinusoidal waveform peak value and valley has very great help.
Utility model content
The purpose of this utility model is to provide the peak value of a kind of nonsinusoidal waveform and valley point voltage testing circuit, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullThe peak value of a kind of nonsinusoidal waveform and valley point voltage testing circuit，Including comparator U1、Comparator U2、Resistance R1、Electric capacity C1、Diode D1 and resistance R5，Described resistance R5 one end connects input signal Vi and electric capacity C3 respectively，The resistance R5 other end connects resistance R6 and comparator U1 in-phase end respectively，The resistance R6 other end connects comparator U2 in-phase end，Comparator U1 end of oppisite phase connects diode D2 positive pole and resistance R1 respectively，Diode D2 negative pole connects comparator U1 outfan and diode D1 positive pole respectively，Diode D1 negative pole connects outfan V1 respectively、The resistance R1 other end and resistance R3，The resistance R3 other end connects electric capacity C1，The electric capacity C1 other end connects the electric capacity C3 other end and electric capacity C2 ground connection respectively，The electric capacity C2 other end connects resistance R4，The resistance R4 other end connects resistance R2 respectively、Diode D4 positive pole and outfan V2，Diode D4 negative pole connects comparator U2 outfan and diode D3 positive pole respectively，Diode D3 negative pole connects the resistance R2 other end and comparator U2 end of oppisite phase respectively.
As further program of the utility model: described comparator U1 and comparator U2 all uses LM324.
As this utility model further scheme: described input signal Vi is nonsinusoidal waveform.
Compared with prior art, the beneficial effects of the utility model are: the peak value of this utility model nonsinusoidal waveform and valley point voltage testing circuit use dual comparator as controlling element, can effectively detection waveform peak value and valley point voltage, circuit structure is simple, low cost, volume is little, applied widely.
Accompanying drawing explanation
Fig. 1 is peak value and the circuit diagram of valley point voltage testing circuit of nonsinusoidal waveform.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，In this utility model embodiment，The peak value of a kind of nonsinusoidal waveform and valley point voltage testing circuit，Including comparator U1、Comparator U2、Resistance R1、Electric capacity C1、Diode D1 and resistance R5，Described resistance R5 one end connects input signal Vi and electric capacity C3 respectively，The resistance R5 other end connects resistance R6 and comparator U1 in-phase end respectively，The resistance R6 other end connects comparator U2 in-phase end，Comparator U1 end of oppisite phase connects diode D2 positive pole and resistance R1 respectively，Diode D2 negative pole connects comparator U1 outfan and diode D1 positive pole respectively，Diode D1 negative pole connects outfan V1 respectively、The resistance R1 other end and resistance R3，The resistance R3 other end connects electric capacity C1，The electric capacity C1 other end connects the electric capacity C3 other end and electric capacity C2 ground connection respectively，The electric capacity C2 other end connects resistance R4，The resistance R4 other end connects resistance R2 respectively、Diode D4 positive pole and outfan V2，Diode D4 negative pole connects comparator U2 outfan and diode D3 positive pole respectively，Diode D3 negative pole connects the resistance R2 other end and comparator U2 end of oppisite phase respectively；Described comparator U1 and comparator U2 all uses LM324；Described input signal Vi is nonsinusoidal waveform.
Operation principle of the present utility model is: refer to Fig. 1, and during peak value, D1 conducting makes C1 charging reach due to the metering function of R1 after peak value, peak value, and C1 electric discharge is very little, charges once again to peak value next time, the crest voltage output detections of maintenance outfan V1；Valley detects in contrast with the above, and valley period C2 promptly discharges into valley point voltage through D2, and is the most only discharged by D4, R2 trace, C2 remains valley point voltage, from outfan V2 output detections.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (3)
- null1. the peak value of a nonsinusoidal waveform and valley point voltage testing circuit，Including comparator U1、Comparator U2、Resistance R1、Electric capacity C1、Diode D1 and resistance R5，It is characterized in that，Described resistance R5 one end connects input signal Vi and electric capacity C3 respectively，The resistance R5 other end connects resistance R6 and comparator U1 in-phase end respectively，The resistance R6 other end connects comparator U2 in-phase end，Comparator U1 end of oppisite phase connects diode D2 positive pole and resistance R1 respectively，Diode D2 negative pole connects comparator U1 outfan and diode D1 positive pole respectively，Diode D1 negative pole connects outfan V1 respectively、The resistance R1 other end and resistance R3，The resistance R3 other end connects electric capacity C1，The electric capacity C1 other end connects the electric capacity C3 other end and electric capacity C2 ground connection respectively，The electric capacity C2 other end connects resistance R4，The resistance R4 other end connects resistance R2 respectively、Diode D4 positive pole and outfan V2，Diode D4 negative pole connects comparator U2 outfan and diode D3 positive pole respectively，Diode D3 negative pole connects the resistance R2 other end and comparator U2 end of oppisite phase respectively.
- The peak value of nonsinusoidal waveform the most according to claim 1 and valley point voltage testing circuit, it is characterised in that described comparator U1 and comparator U2 all uses LM324.
- The peak value of nonsinusoidal waveform the most according to claim 1 and valley point voltage testing circuit, it is characterised in that described input signal Vi is nonsinusoidal waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620118033.0U CN205539148U (en) | 2016-02-05 | 2016-02-05 | Nonsinusoidal waveform's peak value and valley voltage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620118033.0U CN205539148U (en) | 2016-02-05 | 2016-02-05 | Nonsinusoidal waveform's peak value and valley voltage detection circuit |
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| Publication Number | Publication Date |
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| CN205539148U true CN205539148U (en) | 2016-08-31 |
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| CN201620118033.0U Expired - Fee Related CN205539148U (en) | 2016-02-05 | 2016-02-05 | Nonsinusoidal waveform's peak value and valley voltage detection circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505498A (en) * | 2017-08-31 | 2017-12-22 | 东南大学 | A kind of peak value and valley value detection circuit |
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2016
- 2016-02-05 CN CN201620118033.0U patent/CN205539148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505498A (en) * | 2017-08-31 | 2017-12-22 | 东南大学 | A kind of peak value and valley value detection circuit |
| CN107505498B (en) * | 2017-08-31 | 2019-12-10 | 东南大学 | Peak and valley value detection circuit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |