CN106487244A - A kind of polarity rectifying and wave-filtering method - Google Patents
A kind of polarity rectifying and wave-filtering method Download PDFInfo
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- CN106487244A CN106487244A CN201510544480.2A CN201510544480A CN106487244A CN 106487244 A CN106487244 A CN 106487244A CN 201510544480 A CN201510544480 A CN 201510544480A CN 106487244 A CN106487244 A CN 106487244A
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- rectifying
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
Abstract
The invention discloses a kind of polarity rectifying and wave-filtering method, can be widely applied to electron and electrician field, compared with traditional current rectifying and wave filtering circuit, the present invention is that AC sine wave is divided into positive and negative half-wave, carries out rectifying and wave-filtering respectively, finally merge output direct current signal.The present invention relates to various ac signals are to the current rectifying and wave filtering circuit method of DC signal；Switching noise, higher hamonic wave interference that commutation diode cause can be greatly reduced；The signal to noise ratio of DC source after raising rectification；Effectively reduce the interference to operating circuit and electrical network for the rectification circuit noise, simple in circuit design, spontaneous interference in existing rectification circuit just can be greatly reduced with very low production cost, current rectification quality and efficiency and stability are greatly improved.The applicable field of the present invention is broad, the no matter field sensitive to power supply noise such as small-signal, precision instrument, high accuracy control and measurement, or industrial high power DC power applications, the equal effect is significant of the present invention.
Description
Technical field
The present invention relates to a kind of polarity rectifying and wave-filtering method, it is characterized in that for the positive and negative half-wave of ac signal carrying out rectifying and wave-filtering respectively, remerge output；The composite can be widely applied to electron and electrician field, be related to various ac signals to the current rectifying and wave filtering circuit of DC signal.
Background technology
At present in electron and electrician field, current rectifying and wave filtering circuit is one of most basic common application, and most of appliance circuit is required for becoming DC signal by after AC signal rectifying and wave-filtering, and measurement, control etc. for powering, converting is used further.At present in the traditional circuit being filtered using diode rectification, the switching noise that the switching characteristic of diode is led to, higher hamonic wave are one of key factors of impact rectification effect, and ultimately result in each device in circuit and be disturbed, easily aging, short life, or even harmful effect is produced to periphery mains-power circuit.Although can take at present and installing alternating current filter additional or adopt high-speed rectifier diode and additive method to reduce these harmful effects with part, but this is difficult to noise and the higher hamonic wave interference that the basic switching characteristic solving diode itself causes, meanwhile but may improve production cost, particularly with the field sensitive to power supply noise such as small-signal, precision instrument, high accuracy control and measurement, the defect of traditional current rectifying and wave filtering circuit even more shows substantially；Especially in China, at present high power DC is powered, the higher hamonic wave electromagnetic interference that rectification circuit causes is even more one of important interference source of electrical network.
Content of the invention
For overcoming conventional rectifier filter circuit quality of cummutation and inefficient problem, the invention provides a kind of rectifying and wave-filtering method of polarity, the diode switch noise of ac signal rectification circuit can be greatly reduced by it with negative effects such as harmonic wave interference, it is greatly enhanced quality of cummutation and efficiency, and harmonic wave interference is greatly reduced；Present invention employs the design concept of polarity, different from the mode filtering again after traditional circuit all wave rectification, the present invention is to divide positive and negative two half-waves by ac signal, and each half-wave carries out rectifying and wave-filtering with two commutation diodes and a filter capacitor for elementary cell, is then combined with exporting.
Brief description
Fig. 1 is single-phase bridge rectification filter circuit figure.
Fig. 2 is full-wave rectifier filter circuit figure.
Fig. 3 is three-phase bridge rectification filter circuit figure.
Fig. 4 is three phase half wave rectification filter circuit figure.
Specific embodiment
The following is the structure of 4 kinds of main current rectifying and wave filtering circuits based on the present invention：Single-phase bridge rectification filter circuit：（As Fig. 1），During input AC signal of telecommunication positive half-wave, electric capacity C1 filtering is exported by diode D1 D2 rectification，Negative half-wave passes through diode D3 D4 to electric capacity C2 and filters，Then export direct current signal after electric capacity C3 merging，During circuit work，Positive half-wave passes through diode D1 D2 rectification，Filtered by electric capacity C1，Wherein in the interval of diode switch zero passage to conducting，Electric capacity C1 does not also obtain electric current，Now just powered from electric capacity C2 to electric capacity C3，Then after diode D1 D2 turns on，The switching noise that moment produces just is filtered by electric capacity C1，During positive waveform，Powered to electric capacity C3 by electric capacity C1 from after diode D1 D2 rectification，Positive waveform is to after zero crossing，Reverse turn-off characteristic due to diode，Diode D1 D2 does not also end in time，Then electric capacity C1 passes through diode D1 D2 back discharge，Now power to electric capacity C3 further through electric capacity C2，Keep the persistence of electric current；The operation principle of negative half-wave, such as positive half-wave, processes the rectifying and wave-filtering mode of ac signal by such polarity, can filter out the switching noise being caused by the switching characteristic of diode and higher hamonic wave interference in advance in independent filtering branch；
Full-wave rectifier filter circuit (as Fig. 2)：During the positive half-wave of the input AC signal of telecommunication, electric capacity C1 is exported by diode D1 rectification, during negative half-wave, electric capacity C2 is exported by diode D2 rectification, output is merged by electric capacity C3；
Three-phase bridge rectification filter circuit（As Fig. 3）：Three-phase alternating current has the positive and negative half-wave of 6 outs of phase within the working cycle, identical with the principle of the polarity of single-phase alternating current, during the half-wave of this 6 outs of phase, corresponding electric capacity C14, C16, C36, C32, C52, C54 filtering is entered successively after rectification by the diode combinations order of D1D4, D1D6, D3D6, D3D2, D5D2, D5D4, be then combined with Cout output；
Three phase half wave rectification filter circuit（As Fig. 4）：Three-plase half wave rectifier circuit has zero line N to do public negative pole, and three-phase semiwave is filtered respectively through electric capacity C1, C2, C3 respectively after diode D1, D2, D3 rectification, is merged into electric capacity C4 output.
The switching noise of ac signal rectification circuit and harmonic wave interference etc. can must be arrived in this grade of loop of two diodes and an electric capacity by process using technical method according to the present invention, it is greatly enhanced quality of cummutation and efficiency, simple in circuit design, do not need complicated technology, spontaneous interference in existing rectification circuit just can be greatly reduced, current rectification quality and rectification efficiency, stability are greatly improved；The present invention applicable actual industrial field is broad, is either related to the field sensitive to power supply noise such as small-signal, precision instrument, high accuracy control and measurement, or industrial high power DC power applications, the equal effect is significant of the technical program.
Claims (2)
1. a kind of polarity rectifying and wave-filtering method, it is characterized in that ac signal is divided positive and negative half-wave mode to carry out rectifying and wave-filtering respectively, every half-wave adopt two diodes and an electric capacity as independent rectifying and wave-filtering elementary cell by the way of, then by the way of outfan is merged using electric capacity, export direct current signal.
2. the four kinds of current rectifying and wave filtering circuits designing based on a kind of polarity rectifying and wave-filtering method according to claim 1, respectively single-phase bridge rectification filter circuit；Full-wave rectifier filter circuit；Three-phase bridge rectification filter circuit；Three phase half wave rectification filter circuit, every kind of circuit is respectively adopted the halfwave rectifier filter unit of varying number according to the property of different alternating currents, and the output signal of each unit finally merges output direct current signal in the electric capacity of terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544480.2A CN106487244A (en) | 2015-08-31 | 2015-08-31 | A kind of polarity rectifying and wave-filtering method |
| PCT/CN2016/097150 WO2017041635A1 (en) | 2015-08-31 | 2016-08-29 | Polarity-based rectifying and filtering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544480.2A CN106487244A (en) | 2015-08-31 | 2015-08-31 | A kind of polarity rectifying and wave-filtering method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106487244A true CN106487244A (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510544480.2A Pending CN106487244A (en) | 2015-08-31 | 2015-08-31 | A kind of polarity rectifying and wave-filtering method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106487244A (en) |
| WO (1) | WO2017041635A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316883B1 (en) * | 1999-08-27 | 2001-11-13 | Korea Advanced Institute Of Science And Technology | Power-factor correction circuit of electronic ballast for fluorescent lamps |
| CN101527983A (en) * | 2009-04-23 | 2009-09-09 | 张华� | White-light LED illumination driving circuit on basis of current-type charge pump |
| CN201918908U (en) * | 2010-12-07 | 2011-08-03 | 河北先控电源设备有限公司 | Bridge rectifier circuit |
| CN103401414A (en) * | 2012-11-02 | 2013-11-20 | 张元敏 | Method for effectively solving in-phase interference of contactor and microcontroller |
| CN203618153U (en) * | 2013-12-25 | 2014-05-28 | 哈尔滨理工大学 | High-frequency induction heating power supply control circuit |
| CN104541443A (en) * | 2012-08-22 | 2015-04-22 | 皇家飞利浦有限公司 | Rectifying circuit and method for an unbalanced two phase DC grid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10118285A1 (en) * | 2001-04-12 | 2002-11-07 | Philips Corp Intellectual Pty | Circuit for converting AC voltage to DC voltage |
| CN101997418A (en) * | 2009-08-25 | 2011-03-30 | 赵琳博 | LLC (liquid level control) type serial-parallel resonant converter |
| CN102013806A (en) * | 2010-03-10 | 2011-04-13 | 杭州中恒电气股份有限公司 | DC/DC converter suitable for high-voltage input high-power output |
| CN103944397B (en) * | 2014-04-11 | 2017-02-08 | 燕山大学 | Boost type isolated DC/DC converter and control method thereof |
-
2015
- 2015-08-31 CN CN201510544480.2A patent/CN106487244A/en active Pending
-
2016
- 2016-08-29 WO PCT/CN2016/097150 patent/WO2017041635A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316883B1 (en) * | 1999-08-27 | 2001-11-13 | Korea Advanced Institute Of Science And Technology | Power-factor correction circuit of electronic ballast for fluorescent lamps |
| CN101527983A (en) * | 2009-04-23 | 2009-09-09 | 张华� | White-light LED illumination driving circuit on basis of current-type charge pump |
| CN201918908U (en) * | 2010-12-07 | 2011-08-03 | 河北先控电源设备有限公司 | Bridge rectifier circuit |
| CN104541443A (en) * | 2012-08-22 | 2015-04-22 | 皇家飞利浦有限公司 | Rectifying circuit and method for an unbalanced two phase DC grid |
| CN103401414A (en) * | 2012-11-02 | 2013-11-20 | 张元敏 | Method for effectively solving in-phase interference of contactor and microcontroller |
| CN203618153U (en) * | 2013-12-25 | 2014-05-28 | 哈尔滨理工大学 | High-frequency induction heating power supply control circuit |
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| WO2017041635A1 (en) | 2017-03-16 |
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Application publication date: 20170308 |