CN107070265A - The adjustable single-phase optocoupler times flow pattern buck rectifier for expanding flow structure - Google Patents

The adjustable single-phase optocoupler times flow pattern buck rectifier for expanding flow structure Download PDF

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Publication number
CN107070265A
CN107070265A CN201710144715.8A CN201710144715A CN107070265A CN 107070265 A CN107070265 A CN 107070265A CN 201710144715 A CN201710144715 A CN 201710144715A CN 107070265 A CN107070265 A CN 107070265A
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China
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circuit module
triode
direct current
photoelectrical coupler
input end
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CN201710144715.8A
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Chinese (zh)
Inventor
廖无限
肖强晖
易椠椠
戴启
廖晓宇
肖雅文
张健
湛政
任于涵
胡正国
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Hunan University of Technology
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Hunan University of Technology
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Priority to CN201710144715.8A priority Critical patent/CN107070265A/en
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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
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output
    • 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
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/23—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Abstract

The invention discloses a kind of adjustable single-phase optocoupler times flow pattern buck rectifier for expanding flow structure, including main circuit module and control circuit module two large divisions, described main circuit module includes two ac input ends mouthful, two direct current output ports and a main circuit, and described control circuit module is also comprising two synchronous input ends mouthful and a control circuit.The present invention, which has, designs simple, rational in infrastructure, the convenient characteristic of structure, compared with traditional current doubler rectifier, without being depressured in input increase step-down transformer, it is not only suitable for conventional square wave, it is applied to the conversion of the powers of alterating and direct current such as sine wave, triangular wave, sawtooth waveforms again, and expansion output power of power supply can be directly realized by, the voltage of direct current output port can also be adjusted, and the ripple of output voltage can also be reduced.

Description

The adjustable single-phase optocoupler times flow pattern buck rectifier for expanding flow structure
Technical field
It is a kind of single-phase optocoupler times for being related to adjustable expansion flow structure more specifically the present invention relates to flow pattern rectifier again 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 suitable only for high-frequency rectification circuit, and its ac input end needs to provide symmetrical high frequency positive and negative side Ripple power supply, is generally unsuitable for the ac input end power supply of the other forms such as sine wave, triangular wave, sawtooth waveforms；
（2）The device used inside traditional current doubler rectifier is difficult to expand output current once solidifying, and is not easy to direct reality Now expand output power of power supply.
The content of the invention
In view of this, the present invention is intended to provide a kind of adjustable single-phase optocoupler times flow pattern buck rectifier for expanding flow structure, energy The defect for enough overcoming traditional current doubler rectifier 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 and one of diode, return the other end of the secondary side of step-down transformer, now from From the point of view of in simplified quantitative relationship, the AC-input voltage that output voltage is equal to the secondary side of step-down transformer is subtracted on inductance Pressure 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 the step-down rectifier output of current doubler rectifier.
In order to realize the purpose of foregoing invention, the present invention specifically provides the single-phase optocoupler times flow pattern decompression of adjustable expansion flow structure Rectifier technical scheme is：Including main circuit module and control circuit module two large divisions.
（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）Described control circuit module includes two ac input ends mouthful and a control circuit, two of which exchange input Port is respectively ac input end mouthful ACL-in1With ac input end mouthful ACL-in2, further, control circuit is again by resistance R1, electricity Hinder R2, adjustable resistance Rw, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, ac input end mouthful ACL-in1It is connected with adjustable resistance Rw one end, the adjustable resistance Rw other end and resistance R1 one end and resistance R2 one end phase Even, ac input end mouthful ACL-in2Diode cathode, photoelectrical coupler U2 importations with photoelectrical coupler U1 importations Diode anode is connected, and the resistance R1 other end is connected with the diode anode of photoelectrical coupler U1 importations, resistance R2's The other end is connected with the diode cathode of photoelectrical coupler U2 importations；
（3）The ac input end mouthful AC of main circuit moduleH-in1, control circuit module ac input end mouthful ACL-in1With it is external Exchange input bus Line1 to be connected, the ac input end mouthful AC of main circuit moduleH-in2, control circuit module ac input end Mouth ACL-in2It is connected with the external input bus Line2 that exchanges, the direct current output port DC of main circuit moduleOUT+With direct current output Port DCOUT-Between be used for external load RL；
（4）The cycle of operating voltage between exchange input bus Line1 and exchange input bus Line2 be divided into positive half period and Negative half-cycle two large divisions：
When being operated in positive half period, described control circuit module only has a guiding path, and described main circuit module has Two guiding paths, the guiding path of wherein control circuit module is through external exchange input bus Line1 until control electricity The ac input end mouthful AC of road moduleL-in1, adjustable resistance Rw, resistance R1, photoelectrical coupler U1 importations and ac input end Mouth ACL-in2, then to external exchange input bus Line2；And first guiding path of main circuit module is through external friendship Input bus Line1 is flowed until the ac input end mouthful AC of main circuit moduleH-in1, inductance L2, direct current output port DCOUT+, it is outer Meet load RL, direct current output port DCOUT-, photoelectrical coupler U1 output par, cs and triode T1 composition darlington structures it is compound Pipe and ac input end ACH-in2, then to external exchange input bus Line2；The Article 2 guiding path of main circuit module, it is main If by inductance L1 in previous negative half-cycle, the continuous current circuit formed after energy storage, i.e., from inductance L1, by direct current Output port DCOUT+, external load RL, direct current output port DCOUT-Constituted with photoelectrical coupler U1 output par, cs and triode T1 The multiple tube of darlington structure, returns inductance L1；
When being operated in negative half-cycle, now described control circuit module also only has a guiding path, described main circuit Module also has two guiding paths, and the guiding path of wherein control circuit module is straight through external exchange input bus Line2 To the ac input end mouthful AC of control circuit moduleL-in2, photoelectrical coupler U2 importations, resistance R2 adjustable resistances Rw with exchange Input port ACL-in1, then to external exchange input bus Line1；And first guiding path of main circuit module is through outer The exchange input bus Line2 connect is until the ac input end mouthful AC of main circuit moduleH-in2, inductance L1, direct current output port DCOUT+, external load RL, direct current output port DCOUT-, photoelectrical coupler U2 output par, cs and triode T2 composition Darlington knot Multiple tube and ac input end mouthful AC of structureH-in1, then to external exchange input bus Line1；The Article 2 of main circuit module Guiding path, mainly by inductance L2 in previous positive half period, the continuous current circuit formed after energy storage goes out from inductance L2 Hair, by direct current output port DCOUT+, external load RL, direct current output port DCOUT-With photoelectrical coupler U2 output par, cs The multiple tube of darlington structure is constituted with triode T2, inductance L2 is returned；In a word, positive half period is either operated in still to bear Half period, direct current output port DCOUT+Voltage be higher than direct current output port DCOUT-Voltage, during which again benefit from inductance L1 and Inductance L2 energy storage and the effect of afterflow, not only realize single-phase rectifier function, also achieve expansion stream rectification function, and can also Reduce and improve the ripple of output voltage, further, can be to direct current output port DC due to adding adjustable resistance RwOUT+With Direct current output port DCOUT-Between voltage be adjusted.
The beneficial effects of the invention are as follows there is provided a kind of adjustable single-phase optocoupler times flow pattern buck rectifier for expanding flow structure, tool Have and design simple, rational in infrastructure, the convenient characteristic of structure, compared with traditional current doubler rectifier, be depressured without increasing in input Transformer is depressured, and is not only suitable for conventional square wave, is applied to the powers of alterating and direct current such as sine wave, triangular wave, sawtooth waveforms again and is turned Change, and expansion output power of power supply can be directly realized by, the voltage of direct current output port can also be adjusted, and also The ripple of output voltage can be reduced.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly or technical scheme, below will be in embodiment or technical scheme description The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only the more typical reality of the present invention A structure composition or the explanation of circuit diagram are applied, for those skilled in the art, on the premise of not paying creative work, 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 is a kind of single-phase canonical schema of optocoupler times flow pattern buck rectifier of adjustable expansion flow structure.
Fig. 3 is that the single-phase optocoupler times flow pattern buck rectifier of adjustable expansion flow structure is operated in the signal of positive half period guiding path Figure.
Fig. 4 is that the single-phase optocoupler times flow pattern buck rectifier of adjustable expansion flow structure is operated in the signal of negative half-cycle guiding path Figure.
Embodiment
To make the purpose, technical scheme and advantage of present example clearer, below in conjunction with present example Accompanying drawing, the technology of the present invention composition, technical scheme and embodiment is clearly and completely described, it is clear that described example is only Only it is a part of example of the present invention, rather than whole examples.Based on the example in the present invention, those of ordinary skill in the art Other examples obtained under the premise of creative work is not made, belong to the scope of protection of the invention.
In conjunction with the drawings and specific embodiments, the present invention is further described.
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, it is a kind of single-phase canonical schema of optocoupler times flow pattern buck rectifier of adjustable expansion flow structure, bag Include main circuit module and control circuit module two large divisions；
（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 control circuit module includes two ac input ends mouthful and a control circuit, two of which exchange input Port is respectively ac input end mouthful ACL-in1With ac input end mouthful ACL-in2, further, control circuit is again by resistance R1, electricity Hinder R2, adjustable resistance Rw, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, ac input end mouthful ACL-in1It is connected with adjustable resistance Rw one end, the adjustable resistance Rw other end and resistance R1 one end and resistance R2 one end phase Even, ac input end mouthful ACL-in2Diode cathode, photoelectrical coupler U2 importations with photoelectrical coupler U1 importations Diode anode is connected, and the resistance R1 other end is connected with the diode anode of photoelectrical coupler U1 importations, resistance R2's The other end is connected with the diode cathode of photoelectrical coupler U2 importations；
（3）The ac input end mouthful AC of main circuit moduleH-in1, control circuit module ac input end mouthful ACL-in1With it is external Exchange input bus Line1 to be connected, the ac input end mouthful AC of main circuit moduleH-in2, control circuit module ac input end Mouth ACL-in2It is connected with the external input bus Line2 that exchanges, 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, it is that the single-phase optocoupler times flow pattern buck rectifier of adjustable expansion flow structure is operated in positive half period and led Path schematic diagram, when being operated in positive half period, described control circuit module only has a guiding path, described main electricity Road module has two guiding paths, and the guiding path of wherein control circuit module is straight through external exchange input bus Line1 To the ac input end mouthful AC of control circuit moduleL-in1, adjustable resistance Rw, resistance R1, photoelectrical coupler U1 importations and friendship Flow input port ACL-in2, then to external exchange input bus Line2；And first guiding path of main circuit module be through External exchange input bus Line1 is until 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 knot The multiple tube and ac input end AC of structureH-in2, then to external exchange input bus Line2；The Article 2 of main circuit module is led Path, mainly by inductance L1 in previous negative half-cycle, the continuous current circuit formed after energy storage goes out from inductance L1 Hair, by direct current output port DCOUT+, external load RL, direct current output port DCOUT-With photoelectrical coupler U1 output par, cs with Triode T1 constitutes the multiple tube of darlington structure, returns inductance L1.
As shown in Figure 4, it is that the single-phase optocoupler times flow pattern buck rectifier of adjustable expansion flow structure is operated in negative half-cycle and led Path schematic diagram, when being operated in negative half-cycle, now described control circuit module also only has a guiding path, described Main circuit module also have two guiding paths, the guiding path of wherein control circuit module is through external exchange input bus Line2 is until the ac input end mouthful AC of control circuit moduleL-in2, photoelectrical coupler U2 importations, resistance R2 adjustable resistances Rw and ac input end mouthful ACL-in1, then to external exchange input bus Line1；And first guiding path of main circuit module Footpath is through external exchange input bus Line2 until the ac input end mouthful AC of main circuit moduleH-in2, inductance L1, direct current it is defeated Exit port DCOUT+, external load RL, direct current output port DCOUT-, photoelectrical coupler U2 output par, cs and triode T2 composition reach Multiple tube and ac input end mouthful AC of Islington structureH-in1, then to external exchange input bus Line1；Main circuit module Article 2 guiding path, mainly by inductance L2 in previous positive half period, the continuous current circuit formed after energy storage, i.e., from electricity Sense L2 sets out, by direct current output port DCOUT+, external load RL, direct current output port DCOUT-It is defeated with photoelectrical coupler U2 Go out the multiple tube that part constitutes darlington structure with triode T2, return 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, further, due to adding Adjustable resistance Rw can to direct current output port DCOUT+With direct current output port DCOUT-Between voltage be adjusted.
The above described is only a preferred embodiment of the present invention, not making any formal limitation to the present invention.If If carrying out various changes and modifications to embodiment of the present invention, but still within the spirit and principles in the present invention, it should be included in Within the claims of the present invention.

Claims (1)

1. it is adjustable expand flow structure single-phase optocoupler times flow pattern buck rectifier, including main circuit module and control circuit module two it is big Part, 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 control circuit module includes two ac input ends mouthful and a control circuit, two of which exchange input Port is respectively ac input end mouthful ACL-in1With ac input end mouthful ACL-in2, further, control circuit is again by resistance R1, electricity Hinder R2, adjustable resistance Rw, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, ac input end mouthful ACL-in1It is connected with adjustable resistance Rw one end, the adjustable resistance Rw other end and resistance R1 one end and resistance R2 one end phase Even, ac input end mouthful ACL-in2Diode cathode, photoelectrical coupler U2 importations with photoelectrical coupler U1 importations Diode anode is connected, and the resistance R1 other end is connected with the diode anode of photoelectrical coupler U1 importations, resistance R2's The other end is connected with the diode cathode of photoelectrical coupler U2 importations；
（3）The ac input end mouthful AC of main circuit moduleH-in1, control circuit module ac input end mouthful ACL-in1With it is external Exchange input bus Line1 to be connected, the ac input end mouthful AC of main circuit moduleH-in2, control circuit module ac input end Mouth ACL-in2It is connected with the external input bus Line2 that exchanges, the direct current output port DC of main circuit moduleOUT+With direct current output Port DCOUT-Between be used for external load RL.
CN201710144715.8A 2017-03-13 2017-03-13 The adjustable single-phase optocoupler times flow pattern buck rectifier for expanding flow structure Pending CN107070265A (en)

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US11259413B2 (en) 2018-04-05 2022-02-22 Abb Power Electronics Inc. Inductively balanced power supply circuit and method of manufacture

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