CN206620065U - Suitable for the single-phase optocoupler times flow pattern buck rectifier of high companding flow structure - Google Patents

Suitable for the single-phase optocoupler times flow pattern buck rectifier of high companding flow structure Download PDF

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CN206620065U
CN206620065U CN201720236144.6U CN201720236144U CN206620065U CN 206620065 U CN206620065 U CN 206620065U CN 201720236144 U CN201720236144 U CN 201720236144U CN 206620065 U CN206620065 U CN 206620065U
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synchronous
input end
output port
mouthful
triode
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廖无限
肖强晖
肖雅文
张健
湛政
任于涵
胡正国
易椠椠
戴启
廖晓宇
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Hunan University of Technology
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Hunan University of Technology
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Abstract

The utility model discloses a kind of single-phase optocoupler times flow pattern buck rectifier suitable for high companding flow structure, including main circuit module, synchronous buck module and control circuit module three parts, described main circuit module includes two ac input ends mouthful, two direct current output ports and a main circuit, synchronism output port and a synchronous buck circuit that described synchronous buck module is depressured comprising two ac input ends mouthful, two, described control circuit module include two synchronous input ends mouthful and a control circuit.The utility model, which has, designs simple, rational in infrastructure, structure conveniently, characteristic with low cost, compared with traditional current doubler rectifier, not only matched therewith also without increase step-down transformer in its input, and high-pressure type rectification circuit can be directly applied to, in terms of alternating current input power supplying matching, it is not only suitable for conventional square wave, it is applied to other shapes such as sine wave, triangular wave, sawtooth waveforms again, and has and can be directly realized by expansion output power of power supply.

Description

Suitable for the single-phase optocoupler times flow pattern buck rectifier of high companding flow structure
Technical field
The utility model is related to a times flow pattern rectifier, more specifically, is a kind of be related to suitable for high companding flow structure Single-phase optocoupler times flow pattern buck rectifier.
Background technology
Currently, it is used in traditional current doubler rectifier in high-frequency rectification field more, compared with full-wave rectifying circuit, times stream rectification The vice-side winding of the high frequency transformer of device only needs a single winding, without centre cap；Compared with full bridge rectifier, times stream The few half of number of diodes that rectification circuit is used.Therefore, current-doubling rectifier combines full-wave rectifying circuit and full-bridge rectification The advantage of both circuits.Certainly, current-doubling rectifier will be more using an output inductor, structure slightly complicated.But this electricity The working frequency and conveying electric current of sense are the half of inductance used in full-wave rectifying circuit, therefore can be made smaller, also beneficial to scattered Heat, additionally it is possible to reduce and improve the ripple of output voltage.But there is also person, some problems need into one traditional current doubler rectifier Step is solved：
（1）Traditional current doubler rectifier is not directly applicable high-pressure type rectification circuit, to realize that step-down rectifier is exported, leads to Often to be matched therewith in its input increase step-down transformer, thus can produce higher cost；
（2）Traditional current doubler rectifier is suitable only for high-frequency rectification circuit, its ac input end need to provide symmetrical high frequency just, Negative square wave power, is generally unsuitable for the ac input end power supply of the other forms such as sine wave, triangular wave, sawtooth waveforms；
（3）The device used inside traditional current doubler rectifier is difficult to expand output current once solidifying, and is not easy to straight Connect realization and expand output power of power supply.
The content of the invention
In view of this, the utility model aims to provide a kind of single-phase optocoupler times flow pattern suitable for high companding flow structure and is depressured Rectifier, the defect that traditional current doubler rectifier can be overcome to exist.
Traditional current doubler rectifier will generally become to realize the function that step-down rectifier is exported in ac input end increase decompression Depressor is matched therewith, and the primary conductive pathway of every half of work period is brought out from the one of the secondary side of step-down transformer Hair, through inductance, output loading, one of diode, returns the other end of the secondary side of step-down transformer, now conforms to the principle of simplicity From the point of view of in the quantitative relationship of change, output voltage subtracts the pressure on inductance equal to the AC-input voltage of the secondary side of step-down transformer Drop and the pressure drop of diode, but the linear zone of diode is narrower, it operates mainly in switch region, because diode pressure drop very It is small, if ignoring the pressure drop of diode, it is believed that it is secondary that the main output voltage of every half of work period is equal to step-down transformer The AC-input voltage of side subtracts pressure drop on inductance.If the photoelectrical coupler that diode is substituted for linear zone wider range is defeated Go out the multiple tube that part constitutes a darlington structure with triode, while rejecting step-down transformer, then current doubler rectifier is main Output voltage subtracts the pressure drop on inductance equal to AC-input voltage, then subtracts the pressure between photoelectrical coupler output par, c port Drop, can also realize that the device used inside the step-down rectifier output of current doubler rectifier, traditional current doubler rectifier once solidifies difficulty Expand output current to realize, be not easy to be directly realized by expansion output power of power supply.
In order to realize the purpose of foregoing invention, the utility model specifically provides the single-phase optocoupler suitable for high companding flow structure Times flow pattern buck rectifier technical scheme is：Including main circuit module, control circuit module and synchronous buck module three parts.
（1）Described main circuit module includes two ac input ends mouthful, two direct current output ports and a main circuit, Two of which ac input end mouthful is respectively ac input end mouthful ACH-in1With ac input end mouthful ACH-in2, two direct current outputs Port is respectively direct current output port DCOUT+With direct current output port DCOUT-, further, main circuit again by inductance L1, inductance L2, Photoelectrical coupler U1 output par, cs, triode T1, photoelectrical coupler U2 output par, cs and triode T2 compositions, wherein photoelectric coupling Device U1 output par, cs constitute the transmitting of the multiple tube, i.e. photoelectrical coupler U1 output par, cs of a darlington structure with triode T1 Pole is connected with triode T1 base stage, and the colelctor electrode of photoelectrical coupler U1 output par, cs is connected with triode T1 colelctor electrode, and Photoelectrical coupler U2 output par, cs constitute the multiple tube of another darlington structure, i.e. photoelectrical coupler U2 outputs with triode T2 Partial emitter stage is connected with triode T2 base stage, the colelctor electrode of photoelectrical coupler U2 output par, cs and triode T2 current collection Extremely it is connected, ac input end mouthful ACH-in1Emitter stage, inductance L2 one end with triode T2 are connected, the inductance L2 other end with Direct current output port DCOUT+, inductance L1 one end be connected, the inductance L1 other end and triode T1 emitter stage, exchange input Port ACH-in2It is connected, triode T1 colelctor electrode and triode T2 colelctor electrode, direct current output port DCOUT-It is connected；
（2）The synchronism output port and one that described synchronous buck module is depressured comprising two ac input ends mouthful, two Individual synchronous buck circuit, two of which ac input end mouthful is respectively ac input end mouthful ACL-in1With ac input end mouthful ACL-in2, the synchronism output port of two decompressions is respectively synchronism output port SYOUT1With synchronism output port SYOUT2, synchronous drop Volt circuit is made up of conventional device, and it acts on two ac input ends mouthful and synchronous buck module that are to maintain main circuit module Signal is synchronous between two synchronism output ports, and reduces the amplitude of its output voltage, to match the control circuit mould The running parameter of block；
（3）Described control circuit module includes two synchronous input ends mouthful and a control circuit, and two of which is synchronous Input port is respectively synchronous input end mouthful SYin1With synchronous input end mouthful SYin2, further, control circuit is again by resistance R1, electricity Hinder R2, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, synchronous input end mouthful SYin1With resistance R1 One end be connected with resistance R2 one end, synchronous input end mouthful SYin2Diode cathode with photoelectrical coupler U1 importations, The diode anode of photoelectrical coupler U2 importations is connected, the resistance R1 other end and the two of photoelectrical coupler U1 importations Pole pipe anode is connected, and the resistance R2 other end is connected with the diode cathode of photoelectrical coupler U2 importations；
（4）The ac input end mouthful AC of described main circuit moduleH-in1, synchronous buck module ac input end mouthful ACL-in1It is connected with the external input bus Line1 that exchanges, the ac input end AC of main circuit moduleH-in2, synchronous buck module Ac input end ACL-in2It is connected with the external input bus Line2 that exchanges, the synchronism output port of synchronous buck module SYOUT1With the synchronous input end mouthful SY of control circuit modulein1It is connected, the synchronism output port SY of synchronous buck moduleOUT2With control The synchronous input end mouthful SY of circuit module processedin2It is connected, the direct current output port DC of main circuit moduleOUT+With direct current output port DCOUT-Between be used for external load RL；
（5）The cycle of operating voltage between exchange input bus Line1 and exchange input bus Line2 is divided into positive half cycle Phase and negative half-cycle two large divisions：
When being operated in positive half period, described synchronous buck module input only has a guiding path, synchronous buck Also there was only a guiding path between module output end and control circuit module, described main circuit module there are two guiding paths Footpath, the guiding path of wherein synchronous buck module input is through exchanging input bus Line1 until the friendship of synchronous buck module Flow input port ACL-in1, the synchronous buck circuits of synchronous buck inside modules, the ac input end mouthful of synchronous buck module ACL-in2, then to exchange input bus Line2, the guiding path between synchronous buck module output end and control circuit module is Synchronism output port SYOUT1, control circuit module synchronous input end mouthful SYin1, resistance R1, photoelectrical coupler U1 importations, Synchronous input end mouthful SYin2, synchronism output port SYOUT2, synchronous buck inside modules synchronous buck circuit, return synchronization Output port SYOUT1；And first guiding path of main circuit module is until main electricity through external exchange input bus Line1 The ac input end mouthful AC of road moduleH-in1, inductance L2, direct current output port DCOUT+, external load RL, direct current output port DCOUT-, photoelectrical coupler U1 output par, cs and triode T1 composition darlington structures multiple tube and ac input end mouthful ACH-in2, then to external exchange input bus Line2；The Article 2 guiding path of main circuit module, is mainly passed through by inductance L1 After previous negative half-cycle energy storage, the continuous current circuit formed in positive half period, i.e., from inductance L1, by DC output end Mouth DCOUT+, external load RL, direct current output port DCOUT-One is constituted with photoelectrical coupler U1 output par, cs with triode T1 to reach The multiple tube of Islington structure, returns inductance L1；
When being operated in negative half-cycle, described synchronous buck module input also only has a guiding path, synchronous drop Also there was only a guiding path between die block output end and control circuit module, described main circuit module also there are two conductings Path, the guiding path of wherein synchronous buck module input is through exchanging input bus Line2 until synchronous buck module Ac input end mouthful ACL-in2, the synchronous buck circuits of synchronous buck inside modules, the ac input end mouthful of synchronous buck module ACL-in1, then to exchange input bus Line1, the guiding path between synchronous buck module output end and control circuit module is Synchronism output port SYOUT2, control circuit module synchronous input end mouthful SYin2, photoelectrical coupler U2 importations, resistance R2, Synchronous input end mouthful SYin1, synchronism output port SYOUT1, synchronous buck inside modules synchronous buck circuit, return synchronization Output port SYOUT2；
And first guiding path of main circuit is through external exchange input bus Line2 until the friendship of main circuit module Flow input port ACH-in2, inductance L1, direct current output port DCOUT+, external load RL, direct current output port DCOUT-, photoelectricity coupling Clutch U2 output par, cs constitute multiple tube and ac input end mouthful AC of darlington structure with triode T2H-in1, return external Exchange input bus Line1；The Article 2 guiding path of main circuit, mainly by inductance L2 through previous positive half period energy storage Afterwards, the continuous current circuit formed in negative half-cycle, i.e., from inductance L2, by direct current output port DCOUT+, external load RL, direct current output port DCOUT-The multiple tube of darlington structure is constituted with photoelectrical coupler U2 output par, cs and triode T2, then Return to inductance L2；In a word, positive half period or negative half-cycle, direct current output port DC are either operated inOUT+Voltage be higher than Direct current output port DCOUT-Voltage, during which benefit from the effect of inductance L1 and inductance L2 energy storage and afterflow again, not only realize Single-phase rectifier function, also achieves expansion stream rectification function, and can also reduce and improve the ripple of output voltage.
The beneficial effects of the utility model are to provide a kind of single-phase optocoupler times flow pattern suitable for high companding flow structure and are depressured Rectifier, with characteristic simple, rational in infrastructure, that structure is convenient, with low cost is designed, compared with traditional current doubler rectifier, no Only matched therewith also without increase step-down transformer in its input, and high-pressure type rectified current can be directly applied to Road, in terms of alternating current input power supplying matching, is not only suitable for conventional square wave, be applied to again sine wave, triangular wave, sawtooth waveforms etc. its The height, neutralization low-frequency ac input power of its form.Single-phase rectifier function is not only realized, expansion stream rectification function is also achieved, And the ripple of output voltage can also be reduced.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme, embodiment or technical scheme will be retouched below The accompanying drawing used required in stating is briefly described, it should be apparent that, drawings in the following description are only of the present utility model The explanation of more typical example structure composition or circuit diagram, for those skilled in the art, is not paying creative work On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of canonical schema of traditional current doubler rectifier.
Fig. 2 applies to a kind of single-phase canonical schema of optocoupler times flow pattern buck rectifier of high companding flow structure.
The single-phase optocoupler times flow pattern buck rectifier that Fig. 3 applies to high companding flow structure is operated in positive half period guiding path Footpath schematic diagram.
The single-phase optocoupler times flow pattern buck rectifier that Fig. 4 applies to high companding flow structure is operated in negative half-cycle guiding path Footpath schematic diagram.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described to the utility model technology composition, technical scheme and embodiment, shows So, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on this practicality Embodiment in new, other implementations that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of the utility model protection.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
As shown in Figure 1, it is a kind of canonical schema of traditional current doubler rectifier.Traditional current doubler rectifier is depressured to realize The function of rectification output, generally will therewith be matched in ac input end increase step-down transformer, every half of work period Primary conductive pathway is one end of the secondary side from step-down transformer, through inductance, output loading, one of those two pole Pipe, returns the other end of the secondary side of step-down transformer, now from simplified quantitative relationship, and output voltage is equal to drop The AC-input voltage of the secondary side of pressure transformer subtracts the pressure drop on inductance and the pressure drop of diode, but diode is linear Area is narrower, and it operates mainly in switch region, because of the pressure drop very little of diode, if ignoring the pressure drop of diode, it is believed that per half The AC-input voltage that the main output voltage of individual work period is equal to step-down transformer secondary side subtracts pressure drop on inductance.In addition There is a continuous current circuit every half of work period, additionally it is possible to reduces and improves the ripple of output voltage.
As shown in Figure 2, the single-phase a kind of typical case of optocoupler times flow pattern buck rectifier for applying to high companding flow structure shows It is intended to, including main circuit module, control circuit module and synchronous buck module three parts；
（1）Described main circuit module includes two ac input ends mouthful, two direct current output ports and a main circuit, Two of which ac input end mouthful is respectively ac input end mouthful ACH-in1With ac input end mouthful ACH-in2, two direct current outputs Port is respectively direct current output port DCOUT+With direct current output port DCOUT-, further, main circuit again by inductance L1, inductance L2, Photoelectrical coupler U1 output par, cs, triode T1, photoelectrical coupler U2 output par, cs and triode T2 compositions, wherein photoelectric coupling Device U1 output par, cs constitute the transmitting of the multiple tube, i.e. photoelectrical coupler U1 output par, cs of a darlington structure with triode T1 Pole is connected with triode T1 base stage, and the colelctor electrode of photoelectrical coupler U1 output par, cs is connected with triode T1 colelctor electrode, and Photoelectrical coupler U2 output par, cs constitute the multiple tube of another darlington structure, i.e. photoelectrical coupler U2 outputs with triode T2 Partial emitter stage is connected with triode T2 base stage, the colelctor electrode of photoelectrical coupler U2 output par, cs and triode T2 current collection Extremely it is connected, ac input end mouthful ACH-in1Emitter stage, inductance L2 one end with triode T2 are connected, the inductance L2 other end with Direct current output port DCOUT+, inductance L1 one end be connected, the inductance L1 other end and triode T1 emitter stage, exchange input Port ACH-in2It is connected, triode T1 colelctor electrode and triode T2 colelctor electrode, direct current output port DCOUT-It is connected；
（2）The synchronism output port and one that described synchronous buck module is depressured comprising two ac input ends mouthful, two Individual synchronous buck circuit, two of which ac input end mouthful is respectively ac input end mouthful ACL-in1With ac input end mouthful ACL-in2, the synchronism output port of two decompressions is respectively synchronism output port SYOUT1With synchronism output port SYOUT2, synchronous drop Volt circuit is made up of conventional device, and it acts on two ac input ends mouthful and synchronous buck module that are to maintain main circuit module Signal is synchronous between two synchronism output ports, and reduces the amplitude of its output voltage, to match the control circuit mould The running parameter of block；
（3）Described control circuit module includes two synchronous input ends mouthful and a control circuit, and two of which is synchronous Input port is respectively synchronous input end mouthful SYin1With synchronous input end mouthful SYin2, further, control circuit is again by resistance R1, electricity Hinder R2, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, synchronous input end mouthful SYin1With resistance R1 One end be connected with resistance R2 one end, synchronous input end mouthful SYin2Diode cathode with photoelectrical coupler U1 importations, The diode anode of photoelectrical coupler U2 importations is connected, the resistance R1 other end and the two of photoelectrical coupler U1 importations Pole pipe anode is connected, and the resistance R2 other end is connected with the diode cathode of photoelectrical coupler U2 importations；
（4）The ac input end mouthful AC of described main circuit moduleH-in1, synchronous buck module ac input end mouthful ACL-in1It is connected with the external input bus Line1 that exchanges, the ac input end AC of main circuit moduleH-in2, synchronous buck module Ac input end ACL-in2It is connected with the external input bus Line2 that exchanges, the synchronism output port of synchronous buck module SYOUT1With the synchronous input end mouthful SY of control circuit modulein1It is connected, the synchronism output port SY of synchronous buck moduleOUT2With control The synchronous input end mouthful SY of circuit module processedin2It is connected, the direct current output port DC of main circuit moduleOUT+With direct current output port DCOUT-Between be used for external load RL.
The cycle of operating voltage between exchange input bus Line1 and exchange input bus Line2 is divided into positive half period With negative half-cycle two large divisions.
As shown in Figure 3, the single-phase optocoupler times flow pattern buck rectifier for applying to high companding flow structure is operated in just half Cycle guiding path schematic diagram, when being operated in positive half period, described synchronous buck module input only has a guiding path Footpath, also only has a guiding path between synchronous buck module output end and control circuit module, described main circuit module has Two guiding paths, the guiding path of wherein synchronous buck module input is through exchanging input bus Line1 until synchronous drop The ac input end mouthful AC of die blockL-in1, the synchronous buck circuits of synchronous buck inside modules, synchronous buck module exchange it is defeated Inbound port ACL-in2, then to exchange input bus Line2, the conducting between synchronous buck module output end and control circuit module Path is synchronism output port SYOUT1, control circuit module synchronous input end mouthful SYin1, resistance R1, photoelectrical coupler U1 it is defeated Enter part, synchronous input end mouthful SYin2, synchronism output port SYOUT2, synchronous buck inside modules synchronous buck circuit, then return To synchronism output port SYOUT1；And first guiding path of main circuit module is straight through external exchange input bus Line1 To the ac input end mouthful AC of main circuit moduleH-in1, inductance L2, direct current output port DCOUT+, external load RL, direct current output Port DCOUT-, photoelectrical coupler U1 output par, cs and triode T1 composition darlington structures multiple tube and ac input end mouthful ACH-in2, then to external exchange input bus Line2；The Article 2 guiding path of main circuit module, is mainly passed through by inductance L1 After previous negative half-cycle energy storage, the continuous current circuit formed in positive half period, i.e., from inductance L1, by DC output end Mouth DCOUT+, external load RL, direct current output port DCOUT-One is constituted with photoelectrical coupler U1 output par, cs with triode T1 to reach The multiple tube of Islington structure, returns inductance L1.
As shown in Figure 4, the single-phase optocoupler times flow pattern buck rectifier for applying to high companding flow structure is operated in negative half Cycle guiding path schematic diagram, when being operated in negative half-cycle, described synchronous buck module input also only has a conducting Path, also only has a guiding path, described main circuit module between synchronous buck module output end and control circuit module Also there are two guiding paths, the guiding path of wherein synchronous buck module input is through exchanging input bus Line2 until same Walk the ac input end mouthful AC of voltage reduction moduleL-in2, the synchronous buck circuit of synchronous buck inside modules, the friendship of synchronous buck module Flow input port ACL-in1, then to exchange input bus Line1, between synchronous buck module output end and control circuit module Guiding path is synchronism output port SYOUT2, control circuit module synchronous input end mouthful SYin2, photoelectrical coupler U2 input units Point, resistance R2, synchronous input end mouthful SYin1, synchronism output port SYOUT1, synchronous buck inside modules synchronous buck circuit, Return synchronism output port SYOUT2；
And first guiding path of main circuit is through external exchange input bus Line2 until the friendship of main circuit module Flow input port ACH-in2, inductance L1, direct current output port DCOUT+, external load RL, direct current output port DCOUT-, photoelectricity coupling Clutch U2 output par, cs constitute multiple tube and ac input end mouthful AC of darlington structure with triode T2H-in1, return external Exchange input bus Line1；The Article 2 guiding path of main circuit, mainly by inductance L2 through previous positive half period energy storage Afterwards, the continuous current circuit formed in negative half-cycle, i.e., from inductance L2, by direct current output port DCOUT+, external load RL, direct current output port DCOUT-The multiple tube of darlington structure is constituted with photoelectrical coupler U2 output par, cs and triode T2, then Return to inductance L2；In a word, positive half period or negative half-cycle, direct current output port DC are either operated inOUT+Voltage be higher than Direct current output port DCOUT-Voltage, during which benefit from the effect of inductance L1 and inductance L2 energy storage and afterflow again, not only realize Single-phase rectifier function, also achieves expansion stream rectification function, and can also reduce and improve the ripple of output voltage.
It is described above, only it is preferred embodiment of the present utility model, not makees any formal to the utility model Limitation.If various changes and modifications are carried out to the utility model embodiment, but still in spirit of the present utility model and original Within then, it should be included within claims of the present utility model.

Claims (1)

1. suitable for the single-phase optocoupler times flow pattern buck rectifier of high companding flow structure, including main circuit module, control circuit mould Block and synchronous buck module three parts, it is characterized in that：
（1）Described main circuit module includes two ac input ends mouthful, two direct current output ports and a main circuit, wherein Two ac input ends mouthful are respectively ac input end mouthful ACH-in1With ac input end mouthful ACH-in2, two direct current output ports Respectively direct current output port DCOUT+With direct current output port DCOUT-, further, main circuit is again by inductance L1, inductance L2, photoelectricity Coupler U1 output par, cs, triode T1, photoelectrical coupler U2 output par, cs and triode T2 compositions, wherein photoelectrical coupler U1 Output par, c and triode T1 constitute the multiple tube of a darlington structure, the i.e. emitter stage of photoelectrical coupler U1 output par, cs with Triode T1 base stage is connected, and the colelctor electrode of photoelectrical coupler U1 output par, cs is connected with triode T1 colelctor electrode, and photoelectricity Coupler U2 output par, cs constitute the multiple tube of another darlington structure, i.e. photoelectrical coupler U2 output par, cs with triode T2 Emitter stage be connected with triode T2 base stage, the colelctor electrode of photoelectrical coupler U2 output par, cs and triode T2 colelctor electrode phase Even, ac input end mouthful ACH-in1Emitter stage, inductance L2 one end with triode T2 are connected, inductance the L2 other end and direct current Output port DCOUT+, inductance L1 one end be connected, the inductance L1 other end and triode T1 emitter stage, ac input end mouthful ACH-in2It is connected, triode T1 colelctor electrode and triode T2 colelctor electrode, direct current output port DCOUT-It is connected；
（2）Described synchronous buck module is same comprising two ac input ends mouthful, the synchronism output port of two decompressions and one Reduction voltage circuit is walked, two of which ac input end mouthful is respectively ac input end mouthful ACL-in1With ac input end mouthful ACL-in2, two The synchronism output port of individual decompression is respectively synchronism output port SYOUT1With synchronism output port SYOUT2, synchronous buck circuit by Conventional device is constituted, and two ac input ends mouthful that its effect is to maintain main circuit module are synchronous with two of synchronous buck module Signal is synchronous between output port, and reduces the amplitude of its output voltage, the work to match the control circuit module Parameter；
（3）Described control circuit module includes two synchronous input ends mouthful and a control circuit, and two of which is synchronously inputted Port is respectively synchronous input end mouthful SYin1With synchronous input end mouthful SYin2, further, control circuit is again by resistance R1, resistance R2, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, synchronous input end mouthful SYin1With resistance R1's One end is connected with resistance R2 one end, synchronous input end mouthful SYin2With diode cathode, the light of photoelectrical coupler U1 importations The diode anode of electric coupler U2 importations is connected, the resistance R1 other end and two poles of photoelectrical coupler U1 importations Tube anode is connected, and the resistance R2 other end is connected with the diode cathode of photoelectrical coupler U2 importations；
（4）The ac input end mouthful AC of described main circuit moduleH-in1, synchronous buck module ac input end mouthful ACL-in1With External exchange input bus Line1 is connected, the ac input end AC of main circuit moduleH-in2, synchronous buck module exchange it is defeated Enter to hold ACL-in2It is connected with the external input bus Line2 that exchanges, the synchronism output port SY of synchronous buck moduleOUT1With control The synchronous input end mouthful SY of circuit modulein1It is connected, the synchronism output port SY of synchronous buck moduleOUT2With control circuit module Synchronous input end mouthful SYin2It is connected, the direct current output port DC of main circuit moduleOUT+With direct current output port DCOUT-Between use In external load RL.
CN201720236144.6U 2017-03-13 2017-03-13 Suitable for the single-phase optocoupler times flow pattern buck rectifier of high companding flow structure Expired - Fee Related CN206620065U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107070266A (en) * 2017-03-13 2017-08-18 湖南工业大学 Suitable for the single-phase optocoupler times flow pattern buck rectifier of high companding flow structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107070266A (en) * 2017-03-13 2017-08-18 湖南工业大学 Suitable for the single-phase optocoupler times flow pattern buck rectifier of high companding flow structure

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