CN105517650A - Fly-back dc/ac conversion circuit with plurality of windings - Google Patents
Fly-back dc/ac conversion circuit with plurality of windings Download PDFInfo
- Publication number
- CN105517650A CN105517650A CN201480004993.8A CN201480004993A CN105517650A CN 105517650 A CN105517650 A CN 105517650A CN 201480004993 A CN201480004993 A CN 201480004993A CN 105517650 A CN105517650 A CN 105517650A
- Authority
- CN
- China
- Prior art keywords
- winding
- direct
- switch
- multiple coil
- input power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac 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
- H02M7/537—Conversion of dc power input into ac 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, e.g. single switched pulse inverters
Abstract
A fly-back DC/AC conversion circuit with a plurality of windings comprises: a DC input power supply, switches S1 and S2, a fly-back transformer with a plurality of windings, a AC commutation circuit consisting of switches S3 and S4, diodes D1 and D2, and a controller(1). The fly-back transformer with a plurality of windings have three functions of electrical isolation, DC boost and waveform modulation simultaneously. The controller(1) detects the voltage amplitude and the current amplitude of the DC input power supply and controls switches S1 and S2 to enable the DC input power supply to output a positive AC half wave and a negative AC half wave by the fly-back transformer with a plurality of windings. The complete sine AC output is obtained by switching the switches S3 and S4, thus realizing DC/AC conversion by a single-stage circuit, omitting a bridge inverter circuit in a general DC/AC circuit, simplifying the circuit topology and increasing the overall conversion efficiency and reliability of the circuit.
Description
Technical field
The present invention relates to the technical field that dc source is converted to AC power, more particularly, relate to a kind of Multiple coil inverse-excitation type DC/AC translation circuit, can be applicable to system solar module, batteries or other forms of dc source being converted to AC power.
Background technology
Traditional DC/AC translation circuit needs by DC/DC and DC/AC two links usually, during work, the input input constant voltage of circuit, undertaken boosting or decompression transformation by BOOST on-off circuit through DC/DC link, then convert DC to AC by full-bridge circuit (as: H bridge PWM pulsewidth modulation) to export, its output is generally constant voltage amplitude.The switching device formed in traditional DC/AC translation circuit is many, complex structure, and Two Stages have impact on the transformation efficiency of whole inverter circuit, causes transformation efficiency lower.
Summary of the invention
The object of the invention is to overcome above-mentioned defect of the prior art, provide a kind of energy automatic tracing input direct-current power, DC input and AC to export the single-stage Multiple coil inverse-excitation type DC/AC translation circuit isolating, simplify circuit topological structure and improve transformation in planta efficiency and reliability.
For achieving the above object, technical scheme provided by the invention is as follows: a kind of Multiple coil inverse-excitation type DC/AC translation circuit, comprises direct-current input power supplying Vdc, switch S 1, S2, Multiple coil flyback transformer T1, exchanges commutating circuit, diode D1, D2 and controller,
Described interchange commutating circuit is made up of switch S 3, S4, and the half-wave DC for being exported by Multiple coil flyback transformer T1 is converted to AC sine and exports;
The first side winding of described Multiple coil flyback transformer T1 comprises the first winding N1 and the second winding N2 that are connected to each other, its secondary side winding comprises the tertiary winding N3 and the 4th winding N4 that are connected to each other, the positive pole of described direct-current input power supplying Vdc is connected with the common port of the first winding N1 and the second winding N2, the other end of described first winding N1 is connected to the negative pole of direct-current input power supplying Vdc by switch S 1, the other end of described second winding N2 is connected to the negative pole of direct-current input power supplying Vdc by switch S 2, the common port of described tertiary winding N3 and the 4th winding N4 and switch S 3, tie point between S4 connects, the positive pole of described diode D1 is connected with the other end of tertiary winding N3, the negative pole of described diode D1 is connected with the other end of switch S 3, the positive pole of described diode D2 is connected with the other end of the 4th winding N4, the negative pole of described diode D2 is connected with the other end of switch S 4,
Described controller is for detecting voltage magnitude and the current amplitude of direct-current input power supplying Vdc, and by making direct-current input power supplying Vdc export forward alternation and negative sense alternation after Multiple coil flyback transformer T1 to the control of switch S1, S2, and obtain complete simple alternating current output after switching through switch S 3, S4.
As preferably, in technique scheme, described controller is also for when the outlet side of Multiple coil flyback transformer T1 is parallel to AC network, the voltage magnitude of real-time detection AC network and frequency, and the Control timing sequence of gauge tap S1, S2, S3, S4, make the voltage of the alternating voltage of output and frequency and AC network and frequency consistent.
As preferably, in technique scheme, when described controller is also for working in when DC/AC translation circuit from net independent operating state, by the output voltage amplitude of reading pre-set and frequency parameter, in conjunction with the detection and control of direct-current input power supplying Vdc power output, jointly switch S1 and S4 or switch S 2 and S3 are transmitted control signal.
As preferably, in technique scheme, described switch S 3, S4 take turns to operate in work frequency, and when D1, S4 work, Multiple coil flyback transformer T1 exports forward alternation to AC network or load; When D2, S3 work, Multiple coil flyback transformer T1 exports negative sense alternation to AC network or load.
As preferably, in technique scheme, described direct-current input power supplying Vdc is the variable direct-current input power supplying of input direct voltage and current amplitude.
As preferably, in technique scheme, described direct-current input power supplying Vdc comprises batteries, solar battery group or rectifier power source.
As preferably, in technique scheme, also comprise direct current half-wave filter circuit, described direct current half-wave filter circuit has electric capacity C1 and electric capacity C2, described electric capacity C1 is connected in parallel between the negative pole of diode D1 and the common port of tertiary winding N3 and the 4th winding N4, and described electric capacity C2 is connected in parallel between the negative pole of diode D2 and the common port of tertiary winding N3 and the 4th winding N4.
As preferably; in technique scheme; also comprise protection circuit; described protection circuit has overvoltage protector D3 and overvoltage protector D4; the positive pole of described overvoltage protector D3 is connected to the common port of tertiary winding N3 and the 4th winding N4; the negative pole of described overvoltage protector D3 is connected with the negative pole of diode D1, and the positive pole of described overvoltage protector D4 is connected to the common port of tertiary winding N3 and the 4th winding N4, and the negative pole of described overvoltage protector D4 is connected with the negative pole of diode D2.
Compared with prior art, beneficial effect of the present invention is:
The present invention is by direct-current input power supplying, switch S 1, S2, S3, S4, Multiple coil flyback transformer, diode D1, D2 and controller composition, Multiple coil flyback transformer can realize electrical isolation simultaneously, DC boosting and waveform modulated three functions, controller can detect voltage magnitude and the current amplitude of direct-current input power supplying, and pass through switch S1, the control of S2 makes direct-current input power supplying Vdc export forward alternation and negative sense alternation after Multiple coil flyback transformer T1, and through switch S 3, S4 obtains complete simple alternating current and exports after switching, the conversion of DC/AC is realized with single-level circuit form, eliminate the bridge inverter main circuit in general DC/AC circuit, simplify circuit topological structure, improve transformation in planta efficiency and the reliability of circuit.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of Multiple coil inverse-excitation type DC/AC translation circuit;
Circuit diagram when Fig. 2 is the output of AC sine positive half-wave;
Fig. 3 is the circuit diagram that AC sine bears when half-wave exports;
Fig. 4 is the oscillogram of each output waveform in Multiple coil inverse-excitation type DC/AC translation circuit.
Below in conjunction with drawings and Examples, Multiple coil inverse-excitation type DC/AC translation circuit of the present invention is described further.
Detailed description of the invention
Be below the preferred example of Multiple coil inverse-excitation type DC/AC translation circuit of the present invention, therefore do not limit protection scope of the present invention.
Please refer to Fig. 1, there is shown a kind of Multiple coil inverse-excitation type DC/AC translation circuit, comprise direct-current input power supplying Vdc, switch S 1, S2, S3, S4, Multiple coil flyback transformer T1, diode D1, D2, controller 1, direct current half-wave filter circuit 2 and protection circuit 3, wherein, switch S 1, S2, S3, S4 is single-way switch, switch S 3, the S4 half-wave DC constituted for being exported by Multiple coil flyback transformer T1 is converted to the interchange commutating circuit that AC sine exports, the input of Multiple coil flyback transformer T1 is connected with direct-current input power supplying Vdc, the output of Multiple coil flyback transformer T1 and diode D1, D2, direct current half-wave filter circuit 2, protection circuit 3 is connected with interchange commutating circuit.Below the structure of each components and parts to Multiple coil inverse-excitation type DC/AC translation circuit, principle and concrete annexation are elaborated.
Specifically, direct-current input power supplying Vdc is the variable direct-current input power supplying of input direct voltage and current amplitude.In this enforcement, direct-current input power supplying Vdc can be batteries, solar battery group or rectifier power source, can certainly for the dc source obtained through other formal arguments.
Multiple coil flyback transformer T1 is one of power conversion main devices, employing Multiple coil designs, it can realize electrical isolation simultaneously, DC boosting and waveform modulated three functions, and conversion efficiency is high, the first side winding (i.e. armature winding) of Multiple coil flyback transformer T1 comprises the first winding N1 and the second winding N2 that are connected to each other, between first winding N1 and the second winding N2, there is a common port, its secondary side winding (i.e. secondary windings) comprises the tertiary winding N3 and the 4th winding N4 that are connected to each other, between the common port of tertiary winding N3 and the 4th winding N4, there is a common port.By the control of the switch S 1 to Multiple coil flyback transformer T1 input side, S2 (main power device), this transformer T1 can be made to work in flyback duty, and at the outlet side output amplitude of transformer T1 and frequency all adjustable zero passage alternation type direct current.
In this enforcement, the positive pole of direct-current input power supplying Vdc is connected with the common port of the first winding N1 and the second winding N2, the other end of the first winding N1 is connected to the negative pole of direct-current input power supplying Vdc by switch S 1, the other end of the second winding N2 is connected to the negative pole of direct-current input power supplying Vdc by switch S 2, the common port of tertiary winding N3 and the 4th winding N4 and switch S 3, tie point between S4 connects, the positive pole of diode D1 is connected with the other end of tertiary winding N3, the negative pole of diode D1 is connected with the other end of switch S 3, the positive pole of diode D2 is connected with the other end of the 4th winding N4, the negative pole of diode D2 is connected with the other end of switch S 4, diode D1, D2 has one-way commutation effect.
Direct current half-wave filter circuit 2 comprises electric capacity C1 and electric capacity C2, electric capacity C1 is connected in parallel between the negative pole of diode D1 and the common port of tertiary winding N3 and the 4th winding N4, and electric capacity C2 is connected in parallel between the negative pole of diode D2 and the common port of tertiary winding N3 and the 4th winding N4.Protection circuit 3 comprises overvoltage protector D3 and overvoltage protector D4; the positive pole of described overvoltage protector D3 is connected to the common port of tertiary winding N3 and the 4th winding N4; the negative pole of described overvoltage protector D3 is connected with the negative pole of diode D1; the positive pole of described overvoltage protector D4 is connected to the common port of tertiary winding N3 and the 4th winding N4, and the negative pole of described overvoltage protector D4 is connected with the negative pole of diode D2.
Furthermore, controller 1 has control circuit and testing circuit, controller 1 is for detecting voltage magnitude and the current amplitude of direct-current input power supplying Vdc, and by making direct-current input power supplying Vdc export forward alternation and negative sense alternation after Multiple coil flyback transformer T1 to the control of switch S1, S2, and obtain complete simple alternating current output after switching through switch S 3, S4.In addition, controller 1 is also for when the outlet side of Multiple coil flyback transformer T1 is parallel to AC network, the voltage magnitude of real-time detection AC network and frequency, and the Control timing sequence of gauge tap S1, S2, S3, S4, make the voltage of the alternating voltage of output and frequency and AC network and frequency consistent.
Controller 1 can detect voltage magnitude and the power output capacity of direct-current input power supplying Vdc in real time, and adjust the control signal of switching device in time, ensure that Multiple coil flyback transformer T1 exports half-sinusoid waveforms amplitude and frequency is stablized, maintain amplitude and the frequency of AC, any impact is not caused to electrical network and load.
When exporting interchange positive half-wave, controller 1 will detect voltage magnitude and the output current of direct-current input power supplying Vdc, progressively increase the output current set-point of direct-current input power supplying Vdc, increase the power output of direct-current input power supplying Vdc, and the maximum power point that the peak power that direct-current input power supplying Vdc steady operation can be exported at DC/AC translation circuit or direct-current input power supplying Vdc can provide, by load or electrical network in parallel provide maximum power output.The secondary side output voltage waveforms of Multiple coil flyback transformer T1 is as shown in Fig. 4 Vdc_P.
When DC/AC translation circuit be parallel to AC network run time, controller 1 by detect the voltage magnitude of electrical network in parallel and frequency, in conjunction with the detection and control of direct-current input power supplying Vdc power output, jointly switch S1 and S4 is transmitted control signal.
When DC/AC translation circuit works in from net independent operating state, controller 1, by the output voltage amplitude of reading pre-set and frequency parameter, in conjunction with the detection and control of direct-current input power supplying Vdc power output, transmits control signal to switch S1 and S4 jointly.
Wherein, the control signal of switch S 1 is the trigger impulse of dutycycle and frequency-adjustable, by the driving pulse amplitude of switch S1 and the control of dutycycle, regulates voltage waveform and the power output of Multiple coil flyback transformer T1 outlet side.The turn on-switch S4 when the control signal of by-pass cock S1, until whole positive half-wave exports all complete just cut-off switch S4, the operating frequency of switch S 4 is export the frequency exchanged.As shown in Figure 2, when exporting sinusoidal forward half-wave, its electric current I oP flowing through channel is: the secondary side winding of diode D1, load or electrical network AC, switch S 4, Multiple coil flyback transformer T1, output voltage Uo is AC sine positive half-wave, and its waveform is as shown in Fig. 4 Uo_P.
When exporting interchange and bearing half-wave, controller 1 will detect voltage magnitude and the output current of direct-current input power supplying Vdc, progressively increase the output current set-point of direct-current input power supplying Vdc, increase the power output of direct-current input power supplying Vdc, and the maximum power point that the peak power that direct-current input power supplying Vdc steady operation can be exported at DC/AC translation circuit or direct-current input power supplying Vdc can provide, by load or electrical network in parallel provide maximum power output.The secondary side output voltage waveforms of Multiple coil flyback transformer T1 is as shown in Fig. 4 Vdc_N.
When DC/AC translation circuit be parallel to AC network run time, controller 1 by detect the voltage magnitude of electrical network in parallel and frequency, in conjunction with the detection and control of dc source power output, jointly switch S2 and S3 is transmitted control signal.
When DC/AC translation circuit works in from net independent operating state, controller, by the output voltage amplitude of reading pre-set and frequency parameter, in conjunction with the detection and control of dc source power output, transmits control signal to switch S2 and S3 jointly.
The control signal of switch S 2 is the trigger impulse of dutycycle and frequency-adjustable, by the driving pulse amplitude of switch S2 and the control of dutycycle, regulates voltage waveform and the power output of Multiple coil flyback transformer T1 outlet side.The turn on-switch S3 when the control signal of by-pass cock S2, until whole positive half-wave exports all complete just cut-off switch S3, the operating frequency of switch S 3 is export the frequency exchanged.As shown in Figure 3, when exporting sinusoidal negative sense half-wave, its electric current I oN flowing through channel is: the secondary side winding of diode D2, load or electrical network AC, switch S 3, Multiple coil flyback transformer T1, output voltage Uo is that AC sine bears half-wave, and its waveform is as shown in Fig. 4 Uo_N.
After completing a cycle control, complete interchange output waveform is as shown in Fig. 4 Uo.Therefore, by this DC/AC translation circuit, while realizing simplifying circuit topological structure, realize the Effec-tive Function of overall DC/AC translation circuit.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. a Multiple coil inverse-excitation type DC/AC translation circuit, is characterized in that: comprise direct-current input power supplying Vdc, switch S 1, S2, Multiple coil flyback transformer T1, exchanges commutating circuit, diode D1, D2 and controller (1),
Described interchange commutating circuit is made up of switch S 3, S4, and the half-wave DC for being exported by Multiple coil flyback transformer T1 is converted to AC sine and exports;
The first side winding of described Multiple coil flyback transformer T1 comprises the first winding N1 and the second winding N2 that are connected to each other, its secondary side winding comprises the tertiary winding N3 and the 4th winding N4 that are connected to each other, the positive pole of described direct-current input power supplying Vdc is connected with the common port of the first winding N1 and the second winding N2, the other end of described first winding N1 is connected to the negative pole of direct-current input power supplying Vdc by switch S 1, the other end of described second winding N2 is connected to the negative pole of direct-current input power supplying Vdc by switch S 2, the common port of described tertiary winding N3 and the 4th winding N4 and switch S 3, tie point between S4 connects, the positive pole of described diode D1 is connected with the other end of tertiary winding N3, the negative pole of described diode D1 is connected with the other end of switch S 3, the positive pole of described diode D2 is connected with the other end of the 4th winding N4, the negative pole of described diode D2 is connected with the other end of switch S 4,
Described controller (1) is for detecting voltage magnitude and the current amplitude of direct-current input power supplying Vdc, and by making direct-current input power supplying Vdc export forward alternation and negative sense alternation after Multiple coil flyback transformer T1 to the control of switch S1, S2, and obtain complete simple alternating current output after switching through switch S 3, S4.
2. Multiple coil inverse-excitation type DC/AC translation circuit according to claim 1, it is characterized in that: described controller (1) is also for when the outlet side of Multiple coil flyback transformer T1 is parallel to AC network, the voltage magnitude of real-time detection AC network and frequency, and the Control timing sequence of gauge tap S1, S2, S3, S4, make the voltage of the alternating voltage of output and frequency and AC network and frequency consistent.
3. Multiple coil inverse-excitation type DC/AC translation circuit according to claim 1, it is characterized in that: when described controller (1) is also for working in when DC/AC translation circuit from net independent operating state, by the output voltage amplitude of reading pre-set and frequency parameter, in conjunction with the detection and control of direct-current input power supplying Vdc power output, jointly switch S1 and S4 or switch S 2 and S3 are transmitted control signal.
4. Multiple coil inverse-excitation type DC/AC translation circuit according to claim 1, it is characterized in that: described switch S 3, S4 take turns to operate in work frequency, when D1, S4 work, Multiple coil flyback transformer T1 exports forward alternation to AC network or load; When D2, S3 work, Multiple coil flyback transformer T1 exports negative sense alternation to AC network or load.
5. Multiple coil inverse-excitation type DC/AC translation circuit according to claim 1, is characterized in that: described direct-current input power supplying Vdc is the variable direct-current input power supplying of input direct voltage and current amplitude.
6. Multiple coil inverse-excitation type DC/AC translation circuit according to claim 1 or 5, is characterized in that: described direct-current input power supplying Vdc comprises batteries, solar battery group or rectifier power source.
7. Multiple coil inverse-excitation type DC/AC translation circuit according to claim 1, it is characterized in that: also comprise direct current half-wave filter circuit (2), described direct current half-wave filter circuit (2) has electric capacity C1 and electric capacity C2, described electric capacity C1 is connected in parallel between the negative pole of diode D1 and the common port of tertiary winding N3 and the 4th winding N4, and described electric capacity C2 is connected in parallel between the negative pole of diode D2 and the common port of tertiary winding N3 and the 4th winding N4.
8. Multiple coil inverse-excitation type DC/AC translation circuit according to claim 1; it is characterized in that: also comprise protection circuit (3); described protection circuit (3) has overvoltage protector D3 and overvoltage protector D4; the positive pole of described overvoltage protector D3 is connected to the common port of tertiary winding N3 and the 4th winding N4; the negative pole of described overvoltage protector D3 is connected with the negative pole of diode D1; the positive pole of described overvoltage protector D4 is connected to the common port of tertiary winding N3 and the 4th winding N4, and the negative pole of described overvoltage protector D4 is connected with the negative pole of diode D2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/083545 WO2016015330A1 (en) | 2014-08-01 | 2014-08-01 | Fly-back dc/ac conversion circuit with plurality of windings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105517650A true CN105517650A (en) | 2016-04-20 |
| CN105517650B CN105517650B (en) | 2018-12-04 |
Family
ID=55216683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480004993.8A Active CN105517650B (en) | 2014-08-01 | 2014-08-01 | Multiple coil inverse-excitation type DC/AC translation circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105517650B (en) |
| WO (1) | WO2016015330A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774597A (en) * | 2017-02-28 | 2017-05-31 | 广东欧珀移动通信有限公司 | Power circuit, linear power supply and audio frequency apparatus |
| CN109039131A (en) * | 2018-07-23 | 2018-12-18 | 天宝电子（惠州）有限公司 | A kind of control circuit of single-stage inverter |
| CN111992847A (en) * | 2020-08-27 | 2020-11-27 | 上海沪工焊接集团股份有限公司 | Control method and device for wide-voltage multifunctional arc welding machine and storage medium thereof |
| CN117294117A (en) * | 2023-11-27 | 2023-12-26 | 西安奇点能源股份有限公司 | Primary side current detection circuit and detection method for multi-winding series high-voltage flyback power supply |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253287B (en) * | 2016-08-18 | 2023-11-14 | 厦门盈盛捷电力科技有限公司 | AC/DC hybrid power supply system |
| CN108377098B (en) * | 2018-04-23 | 2023-10-03 | 顺德职业技术学院 | Constant voltage output circuit of two-stage input inverter power supply |
| CN113640693A (en) * | 2020-04-24 | 2021-11-12 | 国网江苏省电力有限公司电力科学研究院 | Power electronic transformer operation system and control method |
| CN112688416B (en) * | 2020-12-18 | 2023-11-03 | 厦门科华数能科技有限公司 | Auxiliary power supply and energy storage system |
| CN112803805A (en) * | 2021-03-15 | 2021-05-14 | 机械工业第九设计研究院有限公司 | Multi-port direct-current power supply and combined control method |
| CN114567196B (en) * | 2022-02-28 | 2024-03-01 | 郑州大学 | DC/AC converter capable of expanding power level and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970916A (en) * | 1974-05-16 | 1976-07-20 | Licentia Patent-Verwaltungs-G.M.B.H. | Circuit arrangement for producing an alternating voltage |
| JPH05146158A (en) * | 1991-11-22 | 1993-06-11 | Nec Corp | Ac/dc inverter control system |
| CN1479440A (en) * | 2002-06-05 | 2004-03-03 | 欧姆龙株式会社 | Transforming device of push-pull circuit type |
| CN2817288Y (en) * | 2005-08-15 | 2006-09-13 | 袁荣荣 | High-strength gas discharge lamp electronic ballst |
| CN103051235A (en) * | 2012-12-27 | 2013-04-17 | 保定天威集团有限公司 | Photovoltaic module inverter |
| CN203722503U (en) * | 2014-01-20 | 2014-07-16 | 广东美的制冷设备有限公司 | Grid-connected inverter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448153C (en) * | 2004-09-24 | 2008-12-31 | 南京航空航天大学 | Back exciting converter main circuit topology |
| CN102118115B (en) * | 2010-01-05 | 2013-03-20 | 台达电子工业股份有限公司 | Direct current-alternating current conversion circuit within range of wide input voltage value |
| TWI455470B (en) * | 2011-12-30 | 2014-10-01 | Nat Univ Tsing Hua | Two - stage isolated DC / AC conversion circuit architecture |
| CN102739101A (en) * | 2012-06-20 | 2012-10-17 | 东南大学 | Forward-flyback inverter |
| CN203675000U (en) * | 2013-12-03 | 2014-06-25 | 东南大学 | Photovoltaic grid-connection micro inverter |
-
2014
- 2014-08-01 WO PCT/CN2014/083545 patent/WO2016015330A1/en active Application Filing
- 2014-08-01 CN CN201480004993.8A patent/CN105517650B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970916A (en) * | 1974-05-16 | 1976-07-20 | Licentia Patent-Verwaltungs-G.M.B.H. | Circuit arrangement for producing an alternating voltage |
| JPH05146158A (en) * | 1991-11-22 | 1993-06-11 | Nec Corp | Ac/dc inverter control system |
| CN1479440A (en) * | 2002-06-05 | 2004-03-03 | 欧姆龙株式会社 | Transforming device of push-pull circuit type |
| CN2817288Y (en) * | 2005-08-15 | 2006-09-13 | 袁荣荣 | High-strength gas discharge lamp electronic ballst |
| CN103051235A (en) * | 2012-12-27 | 2013-04-17 | 保定天威集团有限公司 | Photovoltaic module inverter |
| CN203722503U (en) * | 2014-01-20 | 2014-07-16 | 广东美的制冷设备有限公司 | Grid-connected inverter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774597A (en) * | 2017-02-28 | 2017-05-31 | 广东欧珀移动通信有限公司 | Power circuit, linear power supply and audio frequency apparatus |
| CN106774597B (en) * | 2017-02-28 | 2018-01-19 | 广东欧珀移动通信有限公司 | Power circuit, linear power supply and audio frequency apparatus |
| CN109039131A (en) * | 2018-07-23 | 2018-12-18 | 天宝电子（惠州）有限公司 | A kind of control circuit of single-stage inverter |
| CN109039131B (en) * | 2018-07-23 | 2023-09-19 | 惠州市天宝创能科技有限公司 | Control circuit of single-stage inverter |
| CN111992847A (en) * | 2020-08-27 | 2020-11-27 | 上海沪工焊接集团股份有限公司 | Control method and device for wide-voltage multifunctional arc welding machine and storage medium thereof |
| CN117294117A (en) * | 2023-11-27 | 2023-12-26 | 西安奇点能源股份有限公司 | Primary side current detection circuit and detection method for multi-winding series high-voltage flyback power supply |
| CN117294117B (en) * | 2023-11-27 | 2024-02-06 | 西安奇点能源股份有限公司 | Primary side current detection circuit and detection method for multi-winding series high-voltage flyback power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105517650B (en) | 2018-12-04 |
| WO2016015330A1 (en) | 2016-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105517650A (en) | Fly-back dc/ac conversion circuit with plurality of windings | |
| CN108736727A (en) | Power supply changeover device and its control method | |
| CN105207483A (en) | Llc resonant power converter | |
| CN103795237A (en) | Bridge-free voltage reduction APFC circuit | |
| CN105337505A (en) | DC/DC conversion circuit and power supply device | |
| Pragallapati et al. | Parallel-input series-output interleaved flyback based solar PV module integrated micro-inverter | |
| CN105827134B (en) | Multipath magnetic circuit low-voltage, high-current digital AC constant-current source | |
| CN101236218B (en) | AC/DC converter power switch tube drain voltage detection circuit | |
| CN205081684U (en) | Turn over and swash power switching power supply that declines | |
| CN105406715A (en) | Switching power supply unit | |
| CN206922659U (en) | Power transfer module | |
| CN103762839B (en) | A kind of magnetic coupling type single-phase high-gain Bridgeless power factor circuit correcting circuit | |
| CN103138614A (en) | Double-normal-shock inverter | |
| US9425696B2 (en) | Rectifying circuit and method for an unbalanced two phase DC grid | |
| CN203574903U (en) | High-power factor constant current control circuit and LED lighting equipment | |
| CN202931197U (en) | Flyback converter based on transformer transformation | |
| CN109039131B (en) | Control circuit of single-stage inverter | |
| CN204131401U (en) | A kind of photovoltaic DC-to-AC converter DC/DC booster circuit | |
| CN203617930U (en) | Dual chopper isolated inverter | |
| CN102222966A (en) | Uninterrupted power supply | |
| CN204030975U (en) | Single-phase and automatic three-phase switching high voltage source | |
| CN203775041U (en) | Alternating-current power source based on dual voltage rectifying and BOOST circuits | |
| CN203562977U (en) | Photovoltaic inverter of Buck-Boost type topological structure | |
| CN102487199B (en) | Soft switching grid-connected inverter | |
| CN206283411U (en) | A kind of single-stage isolated circuit of power factor correction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190828 Address after: 516000 Fifth Floor, 108 Dongxin Avenue, Dongxing District, Dongjiang High-tech Zone, Huizhou City, Guangdong Province Patentee after: Huizhou Xiaoming Energy Technology Co., Ltd. Address before: 510006 Science Museum 514 and 516, Guangdong University of Technology, 100 Waihuan West Road, Panyu District, Guangzhou, Guangdong Province Patentee before: GUANGZHOU PULAI ENERGY TECHNOLOGY CO., LTD. |