CN106877702A - Adjustable single-phase optocoupler times flow pattern buck rectifier - Google Patents
Adjustable single-phase optocoupler times flow pattern buck rectifier Download PDFInfo
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- CN106877702A CN106877702A CN201710144736.XA CN201710144736A CN106877702A CN 106877702 A CN106877702 A CN 106877702A CN 201710144736 A CN201710144736 A CN 201710144736A CN 106877702 A CN106877702 A CN 106877702A
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- direct current
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- photoelectrical coupler
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- 230000005611 electricity Effects 0.000 claims description 5
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses the adjustable single-phase optocoupler times flow pattern buck rectifier of one kind, 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 includes two ac input ends mouthful and a control circuit.The present invention is convenient with simple, rational in infrastructure, structure is designed, characteristic with low cost, compared with traditional current doubler rectifier, it is depressured without increasing step-down transformer in input, 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, it is also possible to which the voltage to direct current output port is adjusted, and also can reduce the ripple of output voltage.
Description
Technical field
It is that one kind is related to adjustable single-phase optocoupler times flow pattern step-down whole more specifically the present invention relates to flow pattern rectifier again
Stream device.
Background technology
Currently, it is used in high-frequency rectification field traditional current doubler rectifier 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 use an output inductor, structure slightly complicated more.But this electricity
The working frequency of sense and conveying electric current are the half of inductance used by full-wave rectifying circuit, thus can be made it is smaller, also beneficial to dissipating
Heat, additionally it is possible to reduce and improve the ripple of output voltage.But traditional some problems of the current doubler rectifier person of there is also need into one
Step is solved:
(1)Traditional current doubler rectifier is exported to realize step-down rectifier, generally to increase step-down transformer therewith in its input
Matched, thus can be produced cost higher;
(2)Traditional current doubler rectifier is suitable only for high-frequency rectification circuit, and its ac input end needs to provide the symmetrical positive and negative side of high frequency
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;
(3)Traditional current doubler rectifier is difficult to the adjustment to its output voltage.
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, can overcome tradition
The defect that current doubler rectifier is present.
Traditional current doubler rectifier will increase step-down and become to realize the function that step-down rectifier is exported, generally in ac input end
Depressor is matched therewith, and the primary conductive pathway of every half 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 is equal to the pressure that the AC-input voltage of the secondary side of step-down transformer is subtracted on inductance
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 work period is equal to step-down transformer
The AC-input voltage of side subtracts pressure drop on inductance.If diode is substituted for the photoelectrical coupler of linear zone wider range,
Step-down transformer is rejected simultaneously, then the main output voltage of current doubler rectifier subtracts the pressure drop on inductance equal to AC-input voltage,
The pressure drop between photoelectrical coupler output par, c port is subtracted again, it is also possible to is realized the step-down rectifier output of current doubler rectifier, is entered
One step, traditional current doubler rectifier is difficult to the adjustment to its output voltage.
In order to realize the purpose of foregoing invention, the present invention specifically provides adjustable single-phase optocoupler times flow pattern buck rectifier technology
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 and photoelectrical coupler U2 output par, cs are constituted, ac input end mouthful ACH-in1With photoelectrical coupler
The emitter stage of U2 output par, cs, one end of inductance L2 are connected, the other end and the direct current output port DC of inductance L2OUT+, inductance L1
One end be connected, the other end of inductance L1 and the emitter stage of photoelectrical coupler U1 output par, cs, ac input end mouthful ACH-in2Phase
Even, the colelctor electrode of photoelectrical coupler U1 output par, cs and the colelctor electrode of photoelectrical coupler U2 output par, cs, 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
Resistance R2, adjustable resistance Rw, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, ac input end mouthful
ACL-in1One end with adjustable resistance Rw is connected, the other end of adjustable resistance Rw and one end of resistance R1 and one end phase of resistance R2
Even, ac input end mouthful ACL-in2Diode cathode, photoelectrical coupler U2 importations with photoelectrical coupler U1 importations
Diode anode is connected, and the other end of resistance R1 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-in1Connect with input bus Line1 is exchanged, its ac input end mouthful
ACH-in2It is connected with input bus Line2 is exchanged, the ac input end mouthful AC of control circuit moduleL-in1With exchange input bus
Line1 is connected, its ac input end mouthful ACH-in2It is connected with input bus Line2 is exchanged, the direct current output port of main circuit module
DCOUT+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 positive half period is operated in, 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
Stream input bus Line1 is 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, ac input end ACH-in2, then to external friendship
Stream input bus Line2;The Article 2 guiding path of main circuit module, mainly by inductance L1 in previous negative half-cycle through storage
The continuous current circuit that can be formed afterwards, i.e., from inductance L1, by direct current output port DCOUT+, external load RL, DC output end
Mouth DCOUT-With photoelectrical coupler U1 output par, cs, inductance L1 is returned;
When negative half-cycle is operated in, 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 resistance Rw and friendship
Stream input port ACL-in1, then to external exchange input bus Line1;And first guiding path of main circuit module be through
External exchange input bus Line2 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, ac input end mouthful ACH-in1, then
To external exchange input bus Line1;The Article 2 guiding path of main circuit module, mainly by inductance L2 it is previous just
The continuous current circuit that half period is formed after energy storage, i.e., from inductance L2, by direct current output port DCOUT+, external load
RL, direct current output port DCOUT-With photoelectrical coupler U2 output par, cs, inductance L2 is returned;In a word, either it is operated in just half
Cycle or negative half-cycle, direct current output port DCOUT+Voltage be higher than direct current output port DCOUT-Voltage, period again be benefited
In inductance L1 and inductance L2 energy storage and the effect of afterflow, single-phase rectifier function is not only realized, and also can reduce and improve
The ripple of output voltage, further, can be to direct current output port DC due to adding adjustable resistance RwOUT+With DC output end
Mouth DCOUT-Between voltage be adjusted.
The beneficial effects of the invention are as follows a kind of, there is provided adjustable single-phase optocoupler times flow pattern buck rectifier, with design it is simple,
The rational in infrastructure, characteristic that structure is convenient, with low cost, compared with traditional current doubler rectifier, becomes without increasing step-down in input
Depressor is depressured, and is not only suitable for conventional square wave, and suitable for the conversion of the powers of alterating and direct current such as sine wave, triangular wave, sawtooth waveforms,
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 more clearly the embodiments of the present invention or technical scheme, below will be in embodiment or technical scheme description
The required accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only more typical reality of the invention
The explanation of a structure composition or circuit diagram is 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 adjustable single-phase canonical schema of optocoupler times flow pattern buck rectifier.
Fig. 3 is that adjustable single-phase optocoupler times flow pattern buck rectifier is operated in positive half period guiding path schematic diagram.
Fig. 4 is that adjustable single-phase optocoupler times flow pattern buck rectifier is operated in negative half-cycle guiding path schematic diagram.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technology of the present invention composition, technical scheme and embodiment are clearly and completely described, it is clear that described reality
It is only a part of embodiment of the invention to apply example, rather than whole embodiments.Based on the embodiment in the present invention, this area
The other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
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 to realize being depressured
The function of rectification output, generally will increase step-down transformer and be matched therewith in ac input end, every half 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, and now from simplified quantitative relationship, output voltage is equal to drop
The AC-input voltage of the secondary side of pressure transformer subtracts the pressure drop of the pressure drop and diode on inductance, 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 work period, additionally it is possible to reduce and improve the ripple of output voltage.
As shown in Figure 2, it is a kind of adjustable single-phase canonical schema of optocoupler times flow pattern buck rectifier, including main circuit mould
Block 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 and photoelectrical coupler U2 output par, cs are constituted, ac input end mouthful ACH-in1It is defeated with photoelectrical coupler U2
Go out the emitter stage of part, one end of inductance L2 to be connected, the other end and the direct current output port DC of inductance L2OUT+, inductance L1 one
End is connected, the other end of inductance L1 and the emitter stage of photoelectrical coupler U1 output par, cs, ac input end mouthful ACH-in2It is connected, light
The colelctor electrode of electric coupler U1 output par, cs and colelctor electrode, the DC of direct current output port of photoelectrical coupler U2 output par, csOUT-
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
Resistance R2, adjustable resistance Rw, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, ac input end mouthful
ACL-in1One end with adjustable resistance Rw is connected, the other end of adjustable resistance Rw and one end of resistance R1 and one end phase of resistance R2
Even, ac input end mouthful ACL-in2Diode cathode, photoelectrical coupler U2 importations with photoelectrical coupler U1 importations
Diode anode is connected, and the other end of resistance R1 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-in1Connect with input bus Line1 is exchanged, its ac input end mouthful
ACH-in2It is connected with input bus Line2 is exchanged, the ac input end mouthful AC of control circuit moduleL-in1With exchange input bus
Line1 is connected, its ac input end mouthful ACH-in2It is connected with input bus Line2 is exchanged, the direct current output port of main circuit module
DCOUT+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 adjustable single-phase optocoupler times flow pattern buck rectifier is operated in the signal of positive half period guiding path
Figure, when positive half period is operated in, described control circuit module only has a guiding path, and described main circuit module has two
The guiding path of bar guiding path, wherein control circuit module is through external exchange input bus Line1 until control circuit
The ac input end mouthful AC of moduleL-in1, adjustable resistance Rw, resistance R1, photoelectrical coupler U1 importations and ac input end mouthful
ACL-in2, then to external exchange input bus Line2;And first guiding path of main circuit module is 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+, it is external
Load RL, direct current output port DCOUT-, photoelectrical coupler U1 output par, cs, ac input end ACH-in2, then to external exchange
Input bus Line2;The Article 2 guiding path of main circuit module, mainly by inductance L1 in previous negative half-cycle through energy storage
The continuous current circuit for being formed afterwards, i.e., from inductance L1, by direct current output port DCOUT+, external load RL, direct current output port
DCOUT-With photoelectrical coupler U1 output par, cs, inductance L1 is returned.
As shown in Figure 4, it is that adjustable single-phase optocoupler times flow pattern buck rectifier is operated in the signal of negative half-cycle guiding path
Figure, when negative half-cycle is operated in, now described control circuit module also only has a guiding path, described main circuit mould
Block also has two guiding paths, the guiding path of wherein control circuit module be through external exchange input bus Line2 until
The ac input end mouthful AC of control circuit moduleL-in2, photoelectrical coupler U2 importations, resistance R2, adjustable resistance 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 for connecing 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, ac input end mouthful ACH-in1, then
To external exchange input bus Line1;The Article 2 guiding path of main circuit module, mainly by inductance L2 it is previous just
The continuous current circuit that half period is formed after energy storage, i.e., from inductance L2, by direct current output port DCOUT+, external load
RL, direct current output port DCOUT-With photoelectrical coupler U2 output par, cs, inductance L2 is returned;In a word, either it is operated in just half
Cycle or negative half-cycle, direct current output port DCOUT+Voltage be higher than direct current output port DCOUT-Voltage, period again be benefited
In inductance L1 and inductance L2 energy storage and the effect of afterflow, single-phase rectifier function is not only realized, and also can reduce and improve
The ripple of output voltage, further, can be to direct current output port DC due to adding adjustable resistance RwOUT+With DC output end
Mouth DCOUT-Between voltage be adjusted.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made 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, should be included in
Within claims of the invention.
Claims (1)
1. adjustable single-phase optocoupler times flow pattern buck rectifier, including main circuit module and control circuit module two large divisions, it is special
Levying is:
(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 and photoelectrical coupler U2 output par, cs are constituted, ac input end mouthful ACH-in1It is defeated with photoelectrical coupler U2
Go out the emitter stage of part, one end of inductance L2 to be connected, the other end and the direct current output port DC of inductance L2OUT+, inductance L1 one
End is connected, the other end of inductance L1 and the emitter stage of photoelectrical coupler U1 output par, cs, ac input end mouthful ACH-in2It is connected, light
The colelctor electrode of electric coupler U1 output par, cs and colelctor electrode, the DC of direct current output port of photoelectrical coupler U2 output par, csOUT-
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
Resistance R2, adjustable resistance Rw, photoelectrical coupler U1 importations and photoelectrical coupler U2 importations composition, ac input end mouthful
ACL-in1One end with adjustable resistance Rw is connected, the other end of adjustable resistance Rw and one end of resistance R1 and one end phase of resistance R2
Even, ac input end mouthful ACL-in2Diode cathode, photoelectrical coupler U2 importations with photoelectrical coupler U1 importations
Diode anode is connected, and the other end of resistance R1 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-in1Connect with input bus Line1 is exchanged, its ac input end mouthful
ACH-in2It is connected with input bus Line2 is exchanged, the ac input end mouthful AC of control circuit moduleL-in1With exchange input bus
Line1 is connected, its ac input end mouthful ACH-in2It is connected with input bus Line2 is exchanged, the direct current output port of main circuit module
DCOUT+With direct current output port DCOUT-Between be used for external load RL.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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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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Application publication date: 20170620 |