CN102097961A - Voltage stabilization method applied to output of piezoelectric transformer - Google Patents
Voltage stabilization method applied to output of piezoelectric transformer Download PDFInfo
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- CN102097961A CN102097961A CN201010604296XA CN201010604296A CN102097961A CN 102097961 A CN102097961 A CN 102097961A CN 201010604296X A CN201010604296X A CN 201010604296XA CN 201010604296 A CN201010604296 A CN 201010604296A CN 102097961 A CN102097961 A CN 102097961A
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Abstract
The invention discloses a voltage stabilization method applied to output of a piezoelectric transformer. At least one voltage stabilizing diode which works in a reverse breakdown voltage stabilization area is connected at an output end of the piezoelectric transformer or to a rectification circuit of the output of the piezoelectric transformer, so that a voltage stabilization loop connected in parallel with an output load is formed to realize voltage stabilization output. The circuit structure is simple, and the output load regulating capacity of the piezoelectric transformer can be improved; therefore, the requirement on product miniaturization can be met.
Description
Technical field
The present invention relates to a kind of output method for stabilizing voltage; Be particularly related to a kind of method for stabilizing voltage that is applicable to piezoelectric transformer output.
Background technology
Piezoelectric ceramic transformer is a kind of novel piezoelectric energy-conversion device, and it is little to have size, simple in structure, not flammable, radiation hardness, advantage such as no electromagnetic interference carries short-circuit protection, and is highly reliable.It is the present comparatively desirable device that can substitute electromagnetic transformers.But the output loading regulating power is poor during the piezoelectric transformer open loop, and output voltage exists output loading to adjust rate variance, can not be satisfied with the bigger occasion of load variations and use.
Existing piezoelectricity transformation output voltage method for stabilizing voltage operation principle block diagram commonly used as shown in Figure 1, generally sample by output end voltage, after amplifying, error isolates by photoelectrical coupler again, formed feedback signal is regulated the operating frequency or the duty ratio of input, thereby reaches the purpose of output voltage stabilizing.Adopt the weak point of this voltage regulation way to be the control mode complexity, the cost height, product reliability is relatively poor relatively, can not satisfy the requirement of product miniaturization.
Summary of the invention
Have in view of that, the object of the present invention is to provide a kind of method for stabilizing voltage that is applicable to piezoelectric transformer output; Not only circuit structure is simple, and can improve piezoelectric transformer output loading regulating power, thereby can satisfy the requirement of product miniaturization.
For solving the problems of the technologies described above, the invention provides a kind of method for stabilizing voltage that is applicable to piezoelectric transformer output, be operated in reverse breakdown voltage stabilizing district voltage stabilizing didoe by connecting at least one at the piezoelectric transformer output or in the rectification circuit of piezoelectric transformer output, thereby form a loop of voltage regulation in parallel, realize voltage stabilizing output with output loading.
Preferably, described voltage stabilizing circuit is the voltage stabilizing didoe of two negative electrode butt joints or anode butt joint, directly is connected on the output of piezoelectric transformer.
Preferably, described voltage stabilizing circuit is a voltage stabilizing didoe, this scheme requires the piezoelectric transformer output to connect a bridge rectifier or voltage doubling rectifing circuit earlier, because the alternating voltage of piezoelectric transformer output is a direct current after bridge rectifier or voltage doubling rectifing circuit rectification processing, therefore only need a voltage stabilizing didoe just can reach the purpose that voltage stabilizing is exported thereafter, the circuit flow of the current direction requirement of voltage stabilizing didoe and bridge rectifier or voltage doubling rectifing circuit output is to opposite.
As the improvement of above-mentioned two kinds of methods, the voltage stabilizing and the rectification circuit of piezoelectric transformer output can be integrated in one, simplify circuit when reducing component number, reduce cost.This improvement circuit is the output termination bridge rectifier at piezoelectric transformer, and two adjacent brachium pontis of this bridge rectifier become voltage stabilizing didoe by general-purpose diode.
The power transfer mode and the electromagnetic transformers of piezoelectric transformer have a great difference, the power transfer mode of piezoelectric transformer is that electric energy is converted into mechanical energy and is converted into electric energy again, and can not cause the increase of mechanical vibrational energy in the power transfer process in energy exchange processes because of the increase of load, its transmission mode includes constant current transmission mode, constant voltage transmission mode in the ordinary course of things.Can't help the demand of output load just because of the size of piezoelectric transformer transmission of power determines, and constant this distinctive character of power output under certain bar, thereby the method that makes the voltage stabilizing didoe that is connected on the piezoelectric transformer output be operated in reverse breakdown voltage stabilizing district is achieved, and the formation loop of voltage regulation in parallel with output loading, reach the purpose of exporting voltage stabilizing.
The direct voltage of piezoelectric transformer rectification output effectively reduces with the influence that load variations or input voltage change after employing this method.Dc output end has formed a kind of voltage stabilizing output.The method has been utilized the voltage stabilizing mechanism of the inherent characteristics and the voltage stabilizing didoe of piezoelectric transformer, has formed simply a kind of and very effective method for stabilizing voltage.Advantage is that the device of built-up circuit is few, volume is little, easy to implement, cost is low, voltage regulation result is desirable.
Above-mentioned method for stabilizing voltage is suitable for piezoelectric transformer equally owing to the variation that input voltage changes the defeated output voltage that causes produces pressure stabilization function.
Description of drawings
Fig. 1 is a piezoelectric transformer output voltage stabilizing circuit theory diagram commonly used in the prior art.
Fig. 2 is a kind of application block diagram commonly used of piezoelectric transformer.
Fig. 3 is the circuit diagram of piezoelectric transformer output voltage stabilizing rectification circuit first embodiment of the present invention.
Fig. 4-1 is the output voltage mode chart of the piezoelectric transformer of the first embodiment of the present invention.
Fig. 4-2 is not for implementing the piezoelectric transformer output voltage mode chart of first embodiment.
Fig. 5 is the circuit diagram of piezoelectric transformer output voltage stabilizing rectification circuit second embodiment of the present invention.
Fig. 6-1 is the voltage waveforms figure on the voltage stabilizing didoe Z3 of second embodiment of this method.
Fig. 6-2 is not for implementing the output voltage mode chart of piezoelectric transformer output voltage behind bridge rectifier of second embodiment.
Fig. 7-1, Fig. 7-2, Fig. 7-3, Fig. 7-4 are the circuit diagram of piezoelectric transformer output voltage stabilizing rectification circuit the 3rd embodiment of the present invention.
Fig. 8-1 is the voltage waveforms figure on the voltage stabilizing didoe Z4-1 of the 3rd embodiment of this method.
Fig. 8-2 is the voltage waveforms figure that does not implement common one of them diode of rectifier bridge underarm of the 3rd example.
Fig. 9 is for adopting embodiment the, two, the 3rd, output voltage curve comparison diagram behind the output voltage stabilizing circuit.
Embodiment
Fig. 2 comprises input filter circuit, drive circuit, piezoelectric transformer PT, output rectification and output voltage stabilizing, filter circuit and load for adopting the application block diagram of the inventive method piezoelectric transformer.Be operated in reverse breakdown voltage stabilizing district voltage stabilizing didoe by connecting at least one, thereby form a loop of voltage regulation in parallel, realize voltage stabilizing output with output loading at the piezoelectric transformer output or in the rectification circuit of piezoelectric transformer output.
Fig. 3 is the circuit diagram of piezoelectric transformer output method for stabilizing voltage first embodiment of the present invention, and as shown in the figure, loop of voltage regulation is made up of voltage stabilizing didoe Z1, the Z2 of two negative electrode butt joints, directly is connected on the output of piezoelectric transformer.Suppose at t
0Constantly the output voltage of piezoelectric transformer PT is a positive voltage at the anode of voltage stabilizing didoe Z1, and during voltage, voltage stabilizing didoe Z2 oppositely ends when the instantaneous voltage of piezoelectric transformer PT output surpasses the reverse breakdown voltage of voltage stabilizing didoe Z2.The output voltage of piezoelectric transformer PT will carry out rectification by bridge rectifier.When the output instantaneous voltage of piezoelectric transformer PT surpassed the reverse breakdown voltage of voltage stabilizing didoe Z2, the part electricity that exceeds was owing to the voltage stabilizing influence that is subjected to voltage stabilizing didoe Z2 will can not increase again.What therefore the ac voltage signal of piezoelectric transformer PT output will become is level and smooth, and its output voltage wave mode is shown in Fig. 4-1.Fig. 4-2 is not for implementing the piezoelectric transformer output voltage mode chart of first embodiment.The output AC voltage frequency of piezoelectric transformer PT is 118KHZ as we know from the figure, and crest voltage is 5.85V.When the load that input voltage raises or output connect of piezoelectric transformer PT reduced, bigger variation can appear in the peak value of the output AC voltage of piezoelectric transformer PT.And the ac output voltage wave mode of piezoelectric transformer PT is shown in Fig. 4-1 behind the enforcement present embodiment, and the influence when not reducing with the load that the input voltage of piezoelectric transformer PT raises or output connect changes.Therefore DC side output voltage effective value is constant substantially.Circuit shows voltage stabilizing function.Because the restriction of piezoelectric transformer output energy, the growth of the breakdown current of voltage stabilizing didoe Z2 is restricted.Therefore can guarantee that voltage stabilizing didoe Z2 is operated in the safe range.
Voltage stabilizing two utmost point Z1, Z2 also can be for anode dock in the foregoing description one, and its principle of stabilized voltage is constant.
Fig. 5 is the circuit diagram of piezoelectric transformer output method for stabilizing voltage second embodiment of the present invention, and as shown in the figure, this circuit is divided into two parts: the one, and bridge rectifier D, the 2nd, DC voltage-stabilizing loop.Loop of voltage regulation is to be made of a voltage stabilizing didoe Z3 who directly is connected on bridge rectifier D output.Become direct current output after the piezoelectric transformer PT output end voltage process bridge rectifier D rectification.When the instantaneous voltage after its rectification surpasses the reverse breakdown voltage of voltage stabilizing didoe Z3, reverse breakdown will appear in voltage stabilizing didoe Z3.Therefore the part voltage waveforms that surpasses the reverse breakdown voltage of voltage stabilizing didoe Z3 will be subjected to the voltage clamp effect of voltage stabilizing didoe and become level and smooth, shown in Fig. 6-1.Fig. 6-2 is not for implementing the output voltage mode chart of piezoelectric transformer output voltage behind bridge rectifier of second embodiment, and the peak value of rectification circuit D output voltage is 5.76V as we know from the figure.When the load that input voltage raises or output connect of piezoelectric transformer PT reduces, bigger variation can appear in the peak value of the output AC voltage of piezoelectric transformer PT, and rectification circuit D output voltage peak value is consistent with the peak value of piezoelectric transformer output AC voltage.Therefore bigger variation will appear in the output dc voltage effective value.And rectification circuit D output voltage wave mode is shown in Fig. 6-1 behind the enforcement present embodiment, and the influence when not reducing with the load that the input voltage of piezoelectric transformer PT raises or output connect changes.Therefore DC side output voltage effective value is constant substantially.Circuit shows voltage stabilizing function.Because the restriction of piezoelectric transformer output energy, the growth of the breakdown current of voltage stabilizing didoe Z3 is restricted.Therefore can guarantee that voltage stabilizing didoe Z3 is operated in the safe range.
Piezoelectric transformer output method for stabilizing voltage the 3rd embodiment of the present invention adopts the voltage stabilizing electric bridge that integrates rectification and voltage stabilizing function, it is to develop to form on the basis of common rectifier circuit, gets final product for two adjacent brachium pontis of bridge rectifier become voltage stabilizing didoe by general-purpose diode.
Shown in Fig. 7-1, be to change diode D5 and D6 in two following brachium pontis among the bridge rectifier D into voltage stabilizing didoe Z4-1 and Z5-1.Suppose at t
0The output voltage of piezoelectric transformer PT is a positive voltage at the anode of diode D3 constantly, voltage stabilizing didoe Z4-1 is not in oppositely and ends when piezoelectric transformer PT output voltage instantaneous value reaches the voltage stabilizing didoe puncture voltage, diode D3, D4 and voltage stabilizing didoe Z4-1, Z5-1 pipe are formed a common bridge rectifier road, and the alternating voltage that piezoelectric transformer PT is exported carries out full-wave rectification.Suppose when the alternating voltage instantaneous value of piezoelectric transformer PT output exceeds the reverse breakdown voltage of voltage stabilizing didoe Z4-1, voltage breakdown takes place in voltage stabilizing didoe Z4-1, thereby the breakdown current positive flow forms a complete current circuit through voltage stabilizing didoe Z5-1.Voltage waveforms becomes smoothly when the output AC voltage instantaneous value of piezoelectric transformer surpasses the puncture voltage of voltage stabilizing didoe Z4-1, shown in Fig. 8-1.Fig. 8-2 is the voltage waveforms figure on common one of them diode of rectifier bridge underarm of not implementing the 3rd example, and piezoelectric transformer output voltage peak value is 6.44V.When the load that input voltage raises or output connect of piezoelectric transformer PT reduced, bigger variation can appear in the peak value of the output AC voltage of piezoelectric transformer PT.So therefore output dc voltage effective value can produce bigger variation.And the voltage waveforms on the Z4-1 is shown in Fig. 8-1 behind the enforcement present embodiment, and the influence when not reducing with the load that the input voltage of piezoelectric transformer PT raises or output connect changes.Therefore DC side output voltage effective value is constant substantially.Circuit shows voltage stabilizing function.Because the restriction of piezoelectric transformer PT output energy, so breakdown potential fails to be convened for lack of a quorum and is limited in the safe range of voltage stabilizing two utmost point Z4-1.Fig. 7-2, Fig. 7-3, Fig. 7-4 are respectively two diodes of going up in brachium pontis, left brachium pontis, the following brachium pontis are changed to voltage stabilizing didoe Z4-2 and Z5-2, Z4-3 and Z5-3, Z4-4 and Z5-4, and its operation principle is constant.
Fig. 9 is for implementing output voltage curve and above-mentioned three kinds of resulting curve charts of implementation column of above no rectification circuit.As can be seen from the figure when load changed, the output voltage rate of change dwindled greatly.Therefore the voltage regulation result of this method is very significant.
Utilize piezoelectricity depressor characteristics, the combination of circuits method that forms voltage stabilizing output in conjunction with voltage-stabiliser tube is equally applicable to piezoelectric transformer output voltage doubling rectifing circuit, only need change above-mentioned bridge rectifier into voltage multiplying rectifier and get final product: the voltage-stabiliser tube that increases by two negative electrodes or anode butt joint at the input of voltage multiplying rectifier electricity; Or at voltage stabilizing didoe opposite of voltage doubling rectifing circuit output increase with the voltage doubling rectifing circuit current direction; Or thereby a general-purpose diode in the voltage doubling rectifing circuit become voltage stabilizing triode shaping voltage doubling rectifing circuit.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. method for stabilizing voltage that is applicable to piezoelectric transformer output, it is characterized in that: be operated in the voltage stabilizing didoe in reverse breakdown voltage stabilizing district by connecting at least one at the piezoelectric transformer output or in the rectification circuit of piezoelectric transformer output, thereby form a loop of voltage regulation in parallel, realize voltage stabilizing output with output loading.
2. method for stabilizing voltage according to claim 1 is characterized in that described loop of voltage regulation is linked to be by the voltage stabilizing didoe of two negative electrode butt joints or anode butt joint, is connected the output of described piezoelectric transformer.
3. method for stabilizing voltage according to claim 1, it is characterized in that described loop of voltage regulation is linked to be by a voltage stabilizing didoe, be connected the output of the rectification circuit of piezoelectric transformer output, described voltage stabilizing didoe current direction is opposite with the current direction of described rectification circuit output end.
4. according to claim 1 or 2 or 3 described method for stabilizing voltage, it is characterized in that described rectification circuit is bridge rectifier or voltage doubling rectifing circuit.
5. method for stabilizing voltage according to claim 1 is characterized in that described rectification circuit selects bridge rectifier for use, and described loop of voltage regulation is realized by the rectifier diode that replaces with two voltage stabilizing didoes in the bridge rectifier on two adjacent brachium pontis.
6. method for stabilizing voltage according to claim 4, the adjacent brachium pontis that it is characterized in that described bridge rectifier are two following brachium pontis.
7. method for stabilizing voltage according to claim 4, the adjacent brachium pontis that it is characterized in that described bridge rectifier are two and go up brachium pontis.
8. method for stabilizing voltage according to claim 4, the adjacent brachium pontis that it is characterized in that described bridge rectifier are two left brachium pontis.
9. method for stabilizing voltage according to claim 4, the adjacent brachium pontis that it is characterized in that described bridge rectifier are two right brachium pontis.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936317A (en) * | 2017-03-16 | 2017-07-07 | 西安电子科技大学 | The adjustable lightweight electrostatic high-pressure generator of one kind output |
| CN111505404A (en) * | 2019-11-19 | 2020-08-07 | 宁波金源控股有限公司 | Frequency and voltage stabilizing lifting transformer and frequency and voltage stabilizing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114798A (en) * | 1995-05-12 | 1996-01-10 | 陈国富 | Various series bridge linkage circuits and electric source filter circuit of Hi-End electron tube amplifier |
| JP2002064230A (en) * | 2000-08-18 | 2002-02-28 | Tokin Ceramics Corp | Piezoelectric light-emitting device |
| CN201393175Y (en) * | 2009-04-23 | 2010-01-27 | 黄雪珍 | Voltage reduction rectifying voltage stabilizer |
| CN101640484A (en) * | 2009-08-31 | 2010-02-03 | 华南农业大学 | Switch power supply based on piezoelectric ceramics transformer |
| JP2010220456A (en) * | 2009-03-19 | 2010-09-30 | Taiheiyo Cement Corp | High-voltage dc power supply |
| CN201615922U (en) * | 2009-07-10 | 2010-10-27 | 福州开发区安能电子开发部 | Single-pole high-voltage charge indicator with changeable display directions |
-
2010
- 2010-12-24 CN CN201010604296XA patent/CN102097961A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114798A (en) * | 1995-05-12 | 1996-01-10 | 陈国富 | Various series bridge linkage circuits and electric source filter circuit of Hi-End electron tube amplifier |
| JP2002064230A (en) * | 2000-08-18 | 2002-02-28 | Tokin Ceramics Corp | Piezoelectric light-emitting device |
| JP2010220456A (en) * | 2009-03-19 | 2010-09-30 | Taiheiyo Cement Corp | High-voltage dc power supply |
| CN201393175Y (en) * | 2009-04-23 | 2010-01-27 | 黄雪珍 | Voltage reduction rectifying voltage stabilizer |
| CN201615922U (en) * | 2009-07-10 | 2010-10-27 | 福州开发区安能电子开发部 | Single-pole high-voltage charge indicator with changeable display directions |
| CN101640484A (en) * | 2009-08-31 | 2010-02-03 | 华南农业大学 | Switch power supply based on piezoelectric ceramics transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936317A (en) * | 2017-03-16 | 2017-07-07 | 西安电子科技大学 | The adjustable lightweight electrostatic high-pressure generator of one kind output |
| CN111505404A (en) * | 2019-11-19 | 2020-08-07 | 宁波金源控股有限公司 | Frequency and voltage stabilizing lifting transformer and frequency and voltage stabilizing method |
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Application publication date: 20110615 |