CN205142164U - Bipolarity pulse signal produces device - Google Patents
Bipolarity pulse signal produces device Download PDFInfo
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- CN205142164U CN205142164U CN201520910508.5U CN201520910508U CN205142164U CN 205142164 U CN205142164 U CN 205142164U CN 201520910508 U CN201520910508 U CN 201520910508U CN 205142164 U CN205142164 U CN 205142164U
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- pulse signal
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- ceramic transformer
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Abstract
The utility model provides a bipolarity pulse signal produces device, include: unipolarity pulse output unit for output unipolarity pulse signal, the piezoceramics transformer, including input, output and piezoelectrics, its input with the unit connection of unipolarity pulse output is used for receiving unipolarity pulse signal, the piezoelectrics be used for with unipolarity pulse signal converts bipolarity pulse signal into, and its output is used for output bipolarity pulse signal.
Description
Technical field
The utility model relates to Electric signal processing field, is specifically related to a kind of double polarity pulse signal generation device.
Background technology
Double polarity pulse signal has a lot of purposes, and existing scheme produces double polarity pulse signal by push-pull type switching circuit.Fig. 1 shows a push-pull type switching circuit, and this circuit comprises drive circuit L1, drive circuit L2 as shown in Figure 1, and switching tube Q1, switching tube Q2, capacitor C1, capacitor C2, diode D1, diode D2, positive and negative power supply.This circuit, by L1 and L2 one after the other output driving current, makes Q1, Q2 one after the other connect positive and negative power supply, provides double polarity pulse signal thus to load.
The problem of prior art is the complicated structure of double polarity pulse signal circuit for generating, the parameter of the devices such as the switching tube in circuit will determine the parameter of the double polarity pulse signal exported, existing double polarity pulse signal circuit for generating is larger by the equipment parameters affect in circuit as can be seen here, easily be subject to electromagnetic interference influence, and hardware cost is higher.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome double polarity pulse signal of the prior art and produces the complex structure of circuit and the defect that affects by switching circuit components and parts of performance.
For solving the problem, the utility model provides a kind of double polarity pulse signal generation device, comprising: unipolar pulse output unit, for output single-pole pulse signal; Piezoelectric ceramic transformer, comprise input, output and piezoelectrics, its input is connected with described unipolar pulse output unit, for receiving described unipolar pulse signal, described piezoelectrics are used for described unipolar pulse signal to be converted to double polarity pulse signal, and its output is for exporting described double polarity pulse signal.
Preferably, the type of described piezoelectric ceramic transformer comprises single layer piezoelectric ceramic transformer and multilayer piezoelectric ceramic transformer.
Preferably, described piezoelectric ceramic transformer is multilayer piezoelectric ceramic transformer, and described input and output are arranged in wherein one deck of multiple lamination.
Preferably, the type of described piezoelectric ceramic transformer comprises length vibration shape piezoelectric transformer, profile vibration shape piezoelectric transformer, thickness vibration shape piezoelectric transformer, shears vibration shape piezoelectric transformer.
Preferably, the type of described piezoelectric ceramic transformer comprises booster type transformer and step-down type transformer.
Preferably, the shape of described piezoelectric ceramic transformer comprises rectangular plate-like, circular plate-like shape, triangle tabular, annular plate-like.
Preferably, described unipolar pulse output unit is unipolar pulse signal generator.
Preferably, described unipolar pulse output unit comprises: square wave signal generator, for exporting the square-wave pulse signal with specific pulsewidth; Logic gates, for being converted to unipolar pulse signal by described square-wave pulse signal.
Technical solutions of the utility model, tool has the following advantages:
The double polarity pulse signal generation device that the utility model provides carries out conversion by high frequency piezo transformer to unipolar pulse signal and produces bipolar pulse, circuit structure is simple, device volume is little, its centre frequency exporting pulse is relevant to the resonance frequency of piezoelectricity piezoelectric ceramic transformer, very high-frequency can be reached, overcome the restriction of the parameter of electronic device in traditional circuit own, and due to the characteristic of piezoelectric ceramic transformer itself, this device by electromagnetic field effects, can not produce electromagnetic radiation.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is execution modes more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is existing push-pull circuit structure structure chart;
The double polarity pulse signal generation device structural representation that Fig. 2 provides for the utility model;
Fig. 3 is the structure chart of the piezoelectric ceramic transformer in the utility model embodiment;
The oscillogram of the double polarity pulse signal that the double polarity pulse signal generation device that Fig. 4 provides for the utility model exports;
Fig. 5 is the structure chart of another kind of piezoelectric ceramic transformer.
Embodiment
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can also be the connection of two element internals, can be wireless connections, also can be wired connection.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In addition, if below in the described different execution mode of the utility model involved technical characteristic do not form conflict each other and just can be combined with each other.
The utility model embodiment provides a kind of double polarity pulse signal generation device, as shown in Figure 2, comprising:
Unipolar pulse output unit 21, for output single-pole pulse signal, this signal is a kind of unipolar pulse signal of narrow spaces.The pulsewidth of the unipolar pulse signal in the present embodiment is 5ns (half-wave is wide), and peak-to-peak value is 2Vpp.This signal can be produced by signal generator, also can be obtained through gate process by the square-wave signal of any wavelength.Therefore unipolar pulse output unit 21 can be a unipolar pulse signal generator, or the combination unit of a square wave signal generator and logic gates.
Piezoelectric ceramic transformer 22, Fig. 3 shows the concrete structure of piezoelectric ceramic transformer 22, comprise input 221, output 222 and piezoelectrics 223, its input is connected with described unipolar pulse output unit, for receiving described unipolar pulse signal, hold ground connection altogether, piezoelectrics 223 are for being converted to double polarity pulse signal by described unipolar pulse signal, and its output exports double polarity pulse signal.The present embodiment uses a resonance frequency to be the high resonance frequency piezoelectric ceramic transformer of 38MHz, its shape is rectangular plate-like, piezoelectrics material is zirconia titanate, three cube electrodes are plated above piezoceramics crystal, respectively as the input 221 of piezoelectric ceramic transformer, output 222 and holding altogether, polarize after plated electrode, polarised direction as shown in Figure 3.Can determine through experiment, unipolar pulse, after piezoelectric transformer, makes piezoelectric transformer produce resonance, and suitable structural design makes piezoelectric transformer damping control resonance at a concussion end cycle, can produce bipolar pulse at output.Thus, the output 223 of piezoelectric ceramic transformer 22 can export signal as shown in Figure 4, the hyperfrequency bipolar pulse of this output signal to be centre frequency be 84MHz.The centre frequency exporting bipolar pulse is determined by the resonance frequency of the frequency and piezoelectric transformer that input unipolar pulse, and the unipolar pulse of distinct pulse widths and the piezoelectric transformer of different resonance frequency can produce the bipolar pulse of different center frequency mutually.
The piezoelectric transformer piezoelectrics of high resonance frequency are not limited to single layer piezoelectric body composition, and multi-layer piezoelectric body also can be selected to form, if multi-layer piezoelectric body composition, its input 221 and output 222 can be located at the same layer in multiple lamination.
It will be understood by those skilled in the art that the piezoelectric transformer of high resonance frequency comprises polytype according to vibration mode classification, such as the length vibration shape, the profile vibration shape, the thickness vibration shape and the shearing vibration shape; The piezoelectric transformer of high resonance frequency comprises booster type transformer and step-down type transformer according to function type classification; The shape of piezoelectric ceramic transformer comprises multiple, such as, annular plate-like shown in Fig. 3 shown in rectangular plate-like and Fig. 5.Can determine through experiment measuring, select any one type above-mentioned and shape to realize the purpose of this utility model.
Said apparatus produces bipolar pulse by high frequency piezo transformer, circuit structure is simple, device volume is little, its centre frequency exporting pulse is relevant to the resonance frequency of piezoelectricity piezoelectric ceramic transformer, very high-frequency can be reached, electronic device own parameter restriction in the circuit that breaks traditions, and due to the characteristic of piezoelectric ceramic transformer itself, this device by electromagnetic field effects, can not produce electromagnetic radiation.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (8)
1. a double polarity pulse signal generation device, is characterized in that, comprising:
Unipolar pulse output unit, for output single-pole pulse signal;
Piezoelectric ceramic transformer, comprise input, output and piezoelectrics, its input is connected with described unipolar pulse output unit, for receiving described unipolar pulse signal, described piezoelectrics are used for described unipolar pulse signal to be converted to double polarity pulse signal, and its output is for exporting described double polarity pulse signal.
2. device according to claim 1, is characterized in that, the type of described piezoelectric ceramic transformer comprises single layer piezoelectric ceramic transformer and multilayer piezoelectric ceramic transformer.
3. device according to claim 2, is characterized in that, described piezoelectric ceramic transformer is multilayer piezoelectric ceramic transformer, and described input and output are arranged in wherein one deck of multiple lamination.
4. device according to claim 1, is characterized in that, the type of described piezoelectric ceramic transformer comprises length vibration shape piezoelectric transformer, profile vibration shape piezoelectric transformer, thickness vibration shape piezoelectric transformer, shears vibration shape piezoelectric transformer.
5. device according to claim 1, is characterized in that, the type of described piezoelectric ceramic transformer comprises booster type transformer and step-down type transformer.
6. device according to claim 1, is characterized in that, the shape of described piezoelectric ceramic transformer comprises rectangular plate-like, circular plate-like shape, triangle tabular, annular plate-like.
7. device according to claim 1, is characterized in that, described unipolar pulse output unit is unipolar pulse signal generator.
8. device according to claim 1, is characterized in that, described unipolar pulse output unit comprises:
Square wave signal generator, for exporting the square-wave pulse signal with specific pulsewidth;
Logic gates, for being converted to unipolar pulse signal by described square-wave pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910508.5U CN205142164U (en) | 2015-11-16 | 2015-11-16 | Bipolarity pulse signal produces device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910508.5U CN205142164U (en) | 2015-11-16 | 2015-11-16 | Bipolarity pulse signal produces device |
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| Publication Number | Publication Date |
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| CN205142164U true CN205142164U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520910508.5U Withdrawn - After Issue CN205142164U (en) | 2015-11-16 | 2015-11-16 | Bipolarity pulse signal produces device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306021A (en) * | 2015-11-16 | 2016-02-03 | 中国科学院苏州生物医学工程技术研究所 | Bipolar pulse signal generating device |
-
2015
- 2015-11-16 CN CN201520910508.5U patent/CN205142164U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306021A (en) * | 2015-11-16 | 2016-02-03 | 中国科学院苏州生物医学工程技术研究所 | Bipolar pulse signal generating device |
| CN105306021B (en) * | 2015-11-16 | 2018-06-12 | 中国科学院苏州生物医学工程技术研究所 | A kind of double polarity pulse signal generation device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20180612 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20180612 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |