CN204613308U - A kind of inductance measurement circuit - Google Patents
A kind of inductance measurement circuit Download PDFInfo
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- CN204613308U CN204613308U CN201520215130.7U CN201520215130U CN204613308U CN 204613308 U CN204613308 U CN 204613308U CN 201520215130 U CN201520215130 U CN 201520215130U CN 204613308 U CN204613308 U CN 204613308U
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Abstract
The utility model relates to inductance measurement technique field, especially a kind of inductance measurement circuit.It comprises integrated stable voltage circuit, power supply, monopulse generation circuit, metal-oxide-semiconductor driving circuit, metal-oxide-semiconductor on-off circuit and regulated power supply, power supply signal is inputed to the input end of integrated stable voltage circuit and metal-oxide-semiconductor driving circuit by power supply respectively, integrated stable voltage circuit inputs to monopulse and produces circuit after signal is carried out voltage stabilizing, monopulse produces circuit generates pulses signal and pulse signal is inputed to metal-oxide-semiconductor driving circuit, produce drive singal after metal-oxide-semiconductor driving circuit return pulse signal and signal is inputed to metal-oxide-semiconductor on-off circuit, metal-oxide-semiconductor on-off circuit is connected with the positive pole of regulated power supply by telefault, metal-oxide-semiconductor on-off circuit is connected with the negative pole of regulated power supply by the first resistance, first resistor coupled in parallel has voltage table.The utility model structure is simple, simple to operate, has very strong practicality.
Description
Technical field
The utility model relates to inductance measurement technique field, especially a kind of inductance measurement circuit.
Background technology
As everyone knows, inductance is a kind of conventional electronic component, and it has filtering, vibration, delay, trap, voltage leading current, produces the basic roles such as reactive power as inductive load, therefore applies widely in electronic circuit and Industrial Simulation load.Inductance value is the main parameter of inductance, and special inductive measurement instrument generally adopts bridge method (alternating current bridge), resonance method, digitized measurement method, and the most frequently used is alternating current bridge method.
It is relatively more accurate that special inductive measurement instrument is measured the ordinary inductor of miniwatt, high frequency, but at the high-power core inductance of measurement, especially during low-frequency high-power core inductance, often occur the phenomenon that measured value is on the low side.Because most of instrument is to the test signal voltage of inductance only 50mV ~ 2V, and will through the current limliting dividing potential drop of 100 Ω ~ 400 Ω resistance, the power of this excitation inductance coil magnetic field intensity is maximum is only about 0.04W, be far smaller than the power (more than 300W, even at 100kW) when general power core inductance normally works.So the magnetic field intensity of excitation is very little, corresponding magnetic permeability value is on the low side, and the inductance value drawn will be more on the low side than nominal value.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of inductance measurement circuit.
To achieve these goals, the utility model adopts following technical scheme:
A kind of inductance measurement circuit, it comprises integrated stable voltage circuit, power supply, monopulse generation circuit, metal-oxide-semiconductor driving circuit, metal-oxide-semiconductor on-off circuit and regulated power supply;
Power supply signal is inputed to the input end of integrated stable voltage circuit and metal-oxide-semiconductor driving circuit by described power supply respectively, described integrated stable voltage circuit inputs to monopulse and produces circuit after signal is carried out voltage stabilizing, described monopulse produces circuit generates pulses signal and pulse signal is inputed to metal-oxide-semiconductor driving circuit, produce drive singal after described metal-oxide-semiconductor driving circuit return pulse signal and signal is inputed to metal-oxide-semiconductor on-off circuit, described metal-oxide-semiconductor on-off circuit is connected with the positive pole of regulated power supply by telefault, described telefault is parallel with the first diode, described metal-oxide-semiconductor on-off circuit is connected with the negative pole of regulated power supply by the first resistance, described first resistor coupled in parallel has voltage table.
Preferably, described monopulse produces circuit and comprises PICL6F688 single-chip microcomputer and adjustable resistance, the vdd terminal pin of described PICL6F688 single-chip microcomputer is connected with the output terminal of integrated stable voltage circuit, the vdd terminal pin of described PICL6F688 single-chip microcomputer and RA3 hold pin to be parallel with the second resistance, the vdd terminal pin of described PICL6F688 single-chip microcomputer and VSS hold pin to be parallel with the first electric capacity and the second electric capacity, the RA2 of described PICL6F688 single-chip microcomputer holds pin to be connected with metal-oxide-semiconductor driving circuit, the RC2 of described PICL6F688 single-chip microcomputer holds pin to be connected with the adjustable end of adjustable resistance, the stiff end of described adjustable resistance is connected with metal-oxide-semiconductor driving circuit by the 3rd resistance.
Owing to have employed such scheme, of the present utility modelly realize the stable of voltage by integrated stable voltage circuit, guarantee normally carrying out of work; Meanwhile, produce by monopulse the generation that circuit carries out single pulse signal; Further, measure voltage value by voltage table, carried out the adjustment of power supply signal by regulated power supply, its structure is simple, simple to operate, has very strong practicality.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the utility model embodiment;
Fig. 2 is the electrical block diagram of the monopulse generation circuit of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1 to Figure 2, a kind of inductance measurement circuit that the present embodiment provides, it comprises integrated stable voltage circuit 2, power supply 1, monopulse generation circuit 3, metal-oxide-semiconductor driving circuit 4, metal-oxide-semiconductor on-off circuit 5 and regulated power supply 6, power supply signal is inputed to the input end of integrated stable voltage circuit 2 and metal-oxide-semiconductor driving circuit 4 by power supply 1 respectively, integrated stable voltage circuit 2 inputs to monopulse and produces circuit 3 after signal is carried out voltage stabilizing, monopulse produces circuit 3 and produces pulse signal and pulse signal is inputed to metal-oxide-semiconductor driving circuit 4, produce drive singal after metal-oxide-semiconductor driving circuit 4 return pulse signal and drive singal is inputed to metal-oxide-semiconductor on-off circuit 5, metal-oxide-semiconductor on-off circuit 5 carries out the switch control rule of circuit, metal-oxide-semiconductor on-off circuit 5 is connected with the positive pole of regulated power supply 6 by telefault L, telefault L is parallel with the first diode D1, metal-oxide-semiconductor on-off circuit 5 is connected with the negative pole of regulated power supply 6 by the first resistance R1, first resistance R1 is parallel with voltage table V1.The present embodiment realizes the stable of voltage by integrated stable voltage circuit 2, guarantees normally carrying out of work; Meanwhile, produce by monopulse the generation that circuit 3 carries out single pulse signal, utilize single pulse signal then to control the generation of the drive singal of metal-oxide-semiconductor driving circuit 4, it also indirectly plays the adjustment controlling metal-oxide-semiconductor on-off circuit 5; Further, measure voltage value by voltage table V1, carried out the adjustment of power supply signal by regulated power supply 6, within the time of pulse persistance, utilize and regulate regulated power supply 6, utilize the change in voltage numerical value that voltage table V1 records, and then extrapolate the inductance value of telefault L.
The monopulse generation circuit 3 of the present embodiment can adopt circuit structure as shown in Figure 2, namely PICL6F688 single-chip microcomputer U1 and adjustable resistance Rv is comprised, the vdd terminal pin of PICL6F688 single-chip microcomputer U1 is connected with the output terminal of integrated stable voltage circuit 2, the vdd terminal pin of PICL6F688 single-chip microcomputer U1 and RA3 hold pin to be parallel with the second resistance R2, the vdd terminal pin of PICL6F688 single-chip microcomputer U1 and VSS hold pin to be parallel with the first electric capacity C1 and the second electric capacity C2, the RA2 of PICL6F688 single-chip microcomputer U1 holds pin to be connected with metal-oxide-semiconductor driving circuit 4, the RC2 of PICL6F688 single-chip microcomputer U1 holds pin to be connected with the adjustable end of adjustable resistance Rv, the stiff end of adjustable resistance Rv is connected with metal-oxide-semiconductor driving circuit 4 by the 3rd resistance R3.This circuit utilizes PICL6F688 single-chip microcomputer U1 entirety to realize the generation of single pulse signal, and utilizes adjustable resistance Rv to carry out the adjustment of circuit resistance, thus carries out the adjustment of circuit working, and utilizes the first electric capacity C1 and the second electric capacity C2 to play the effect of filtering.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (2)
1. an inductance measurement circuit, is characterized in that: it comprises integrated stable voltage circuit, power supply, monopulse generation circuit, metal-oxide-semiconductor driving circuit, metal-oxide-semiconductor on-off circuit and regulated power supply;
Power supply signal is inputed to the input end of integrated stable voltage circuit and metal-oxide-semiconductor driving circuit by described power supply respectively, described integrated stable voltage circuit inputs to monopulse and produces circuit after signal is carried out voltage stabilizing, described monopulse produces circuit generates pulses signal and pulse signal is inputed to metal-oxide-semiconductor driving circuit, produce drive singal after described metal-oxide-semiconductor driving circuit return pulse signal and signal is inputed to metal-oxide-semiconductor on-off circuit, described metal-oxide-semiconductor on-off circuit is connected with the positive pole of regulated power supply by telefault, described telefault is parallel with the first diode, described metal-oxide-semiconductor on-off circuit is connected with the negative pole of regulated power supply by the first resistance, described first resistor coupled in parallel has voltage table.
2. a kind of inductance measurement circuit as claimed in claim 1, it is characterized in that: described monopulse produces circuit and comprises PICL6F688 single-chip microcomputer and adjustable resistance, the vdd terminal pin of described PICL6F688 single-chip microcomputer is connected with the output terminal of integrated stable voltage circuit, the vdd terminal pin of described PICL6F688 single-chip microcomputer and RA3 hold pin to be parallel with the second resistance, the vdd terminal pin of described PICL6F688 single-chip microcomputer and VSS hold pin to be parallel with the first electric capacity and the second electric capacity, the RA2 of described PICL6F688 single-chip microcomputer holds pin to be connected with metal-oxide-semiconductor driving circuit, the RC2 of described PICL6F688 single-chip microcomputer holds pin to be connected with the adjustable end of adjustable resistance, the stiff end of described adjustable resistance is connected with metal-oxide-semiconductor driving circuit by the 3rd resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215130.7U CN204613308U (en) | 2015-04-11 | 2015-04-11 | A kind of inductance measurement circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215130.7U CN204613308U (en) | 2015-04-11 | 2015-04-11 | A kind of inductance measurement circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204613308U true CN204613308U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520215130.7U Expired - Fee Related CN204613308U (en) | 2015-04-11 | 2015-04-11 | A kind of inductance measurement circuit |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388364A (en) * | 2015-11-03 | 2016-03-09 | 新乡学院 | Inductance measurement circuit |
| CN106841818A (en) * | 2017-01-13 | 2017-06-13 | 西北工业大学 | A kind of inductance measurement device based on resonance principle |
| CN107918057A (en) * | 2016-10-11 | 2018-04-17 | 联合汽车电子有限公司 | The measuring method and its measuring system of ignition coil primary inductance |
-
2015
- 2015-04-11 CN CN201520215130.7U patent/CN204613308U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388364A (en) * | 2015-11-03 | 2016-03-09 | 新乡学院 | Inductance measurement circuit |
| CN107918057A (en) * | 2016-10-11 | 2018-04-17 | 联合汽车电子有限公司 | The measuring method and its measuring system of ignition coil primary inductance |
| CN106841818A (en) * | 2017-01-13 | 2017-06-13 | 西北工业大学 | A kind of inductance measurement device based on resonance principle |
| CN106841818B (en) * | 2017-01-13 | 2019-05-10 | 西北工业大学 | A kind of inductance measurement device based on resonance principle |
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Legal Events
| 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: 20150902 Termination date: 20160411 |
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| CF01 | Termination of patent right due to non-payment of annual fee |