CN101820216A - Alternating current boosting power factor correction circuit - Google Patents
Alternating current boosting power factor correction circuit Download PDFInfo
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- CN101820216A CN101820216A CN200910250245A CN200910250245A CN101820216A CN 101820216 A CN101820216 A CN 101820216A CN 200910250245 A CN200910250245 A CN 200910250245A CN 200910250245 A CN200910250245 A CN 200910250245A CN 101820216 A CN101820216 A CN 101820216A
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- 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
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Abstract
The invention relates to an alternating current boosting power factor correction circuit, comprising commutation diodes (D1), (D2), (D3) and (D4), power tubes (M1) and (M2) and a control circuit for controlling the power tubes. In a single-phase power factor correction circuit, an inductor (L1) is arranged between the (D1) and the (D2), and an inductor (L2) is arranged between the (D2) and the (D4). The inductors (L1) and (L2) are coupled with each other and wound on the same magnetic core. A zero line is connected with the common terminal of the power tubes (M1) and (M2), and the common terminal of (C1) and (C2) is connected to the zero line. A three-phase alternating current boosting power factor correction circuit is formed by adopting the single-phase power factor correcting circuit, and the three-phase alternating current boosting power factor correction circuit can normally work without being connecting with the zero line. Compared with a general PFC (Power Factor Correction) circuit, the alternating current boosting power factor correction circuit has the advantages that a diode is reduced on a power access, the efficiency of the circuit can be improved, a control system can adopt any power factor correction control mode, and the positions of current collection sensors S1 and S2 can be changed according to different control modes.
Description
Technical field
The present invention is that a kind of AC boosting is single-phase, and three-phase power factor correcting circuit is mainly used in power factor correction, improves power factor, with the harm to electrical network of the harmonic wave that reduces power supply, belongs to electric and electronic technical field.
Background technology
Along with worldwide process of industrialization is accelerated, the energy and environmental protection obtain attention more and more widely.Solve energy problem except rational energy exploitation, searching new forms of energy, self tap the latent power, improve utilization efficiency of energy and also mentioned consequence in every profession and trade.Environmental protection also no longer is limited to the improvement of waste gas, waste residue, noise, and electromagnetic pollution has been confirmed as the fifth-largest pollutant sources.
Typical electromagnetic pollution when harmonic pollution and radio-frequency pollution.The material electric machining is the industry of power consumption maximum, as casting miscellaneous, welding, forging and pressing, heat treatment and machining equipment, all uses the heat energy or the kinetic energy that are transformed by electric energy.The load state of material processing plant almost is non-linear very strong all, as the electric equipment (as voltage adjusting device, frequency control and inverter etc.) of high-frequency induction heating, arc heating, electron beam heating, electrolysis, plating and employing rectification input.These nonlinear loads make and contain a large amount of high order harmonic components in the power supply grid, on the one hand the power factor of equipment is reduced greatly, cause the significant wastage of transmission losses and power supply capacity, severe contamination electrical network on the other hand, influence the normal operation of other equipment, make the computerized equipment misoperation, even can cause the distribution accident.Harmonic wave has become a kind of electric power public hazards, and the most effectual way of solution is that the input at equipment is connected to harmonic suppression apparatus.
Power factor correction is normally after bridge rectifier, increase a Boost circuit, as shown in Figure 1, on-off action by power component, make input current become with line voltage almost completely homophase get sinusoidal wave, current distortion rate is dropped to below 5%, and power factor brings up to 0.99 or higher.
Its its working principles: during power tube S (by control circuit control) conducting, input voltage vin all is added on the inductance L, along with the rising of input voltage vin, by the also rising thereupon of electric current of inductance L; When power tube turn-offed, inductance produced the induced voltage VL with the input voltage same polarity.At this moment, the voltage at power tube two ends is Vin+VL, and this voltage is delivered to capacitor C by diode D.Like this, the average current of input inductance L will be followed the tracks of the variation of sinusoidal voltage, and the approaching and synchronous sine wave of voltage of current waveform makes power factor approach 1.For realizing harmonic restraining function, the output voltage U 0 of Boost pfc circuit must be greater than the crest voltage of rectifier output.
APFC is divided into single-phase power factor correcting and three-phase activity coefficient adjustment by the difference of application, by the mode of operation of circuit the inductive current of being divided into continuous mode (CCM) and inductive current discontinuous mode (DCM) is arranged.The expert in power electronics both domestic and external field has carried out deep research to the single-phase power factor correcting technology, and many articles have been delivered, but great majority research all is the research to control circuit and method, do not change the main circuit of traditional circuit of power factor correction, make to use and be restricted at the utilance of power supply and powerful device, so must study new circuit of power factor correction topology, improve the efficient of circuit.
Summary of the invention
The objective of the invention is to,, improve the efficient of circuit, make the utilance of power supply and powerful device be more widely used by alternating current boosting power factor correction circuit is provided.
The present invention adopts following technological means to realize:
Alternating current boosting power factor correction circuit comprises: diode D1, D2, D3, D4; Power tube M1, M2; And the control circuit of power controlling pipe; It is characterized in that: in single phase power factor correcting circuit, be provided with inductance L 1 between D1 and the D3, be provided with inductance L 2 between D2 and the D4; Described inductance L 1 and L2 are coupled mutually, on the same magnetic core of coiling; Wherein, V is connected with the anode of D1 and negative electrode one end of D2; The negative electrode of D1 is connected with an end of inductance L 1; The anode of D2 is connected with an end of inductance L 2; Two power tube M1 and M2 that have the inverse parallel diode are connected in series; Anode one end of the collector electrode of the other end of L1 and power tube M1 and diode D3 connects; Negative electrode one end of the emitter of the other end of L2 and power tube M2 and diode D4 connects; Capacitor C 1 and C2 are connected in series; C1 two ends parallel resistance R1; C2 two ends parallel resistance R2; The negative electrode of D3 links to each other with output DC+ with the positive pole of capacitor C 1; The negative pole of the anode of D4 and capacitor C 2 and output DC-connect; Zero line links to each other with the common port of power tube (M1), (M2); (C1), the common port of (C2) is connected on the zero line.
Described L1 and L2 are merged into inductance L 1, one end link to each other with V, negative electrode one end of the anode of the other end and diode D1 and diode D2 connects; Anode one end of the collector electrode of the negative electrode of D1 and power tube M1 and diode D3 connects; The anode of D2 is connected with the emitter of power tube M2 and negative electrode one end of diode D4.
Aforesaid power switch component M1 and power switch component M2 adopt MOSFET or IGBT, and the frequency of switch element is 5KHz-100KHz; When adopting MOSFET, the inverse parallel diode (DM1) of power switch pipe, (DM2) can replace with the body diode of MOSFET.
Aforesaid capacitor C 1, C2 are 20uF-3300uF.
Aforesaid resistance R 1, R2 resistance value scope are 2K-100K.
The inductance value scope of aforesaid inductance L 1, L2 is 0.05mH-2.00mH.
Aforesaid diode (D1), (D2), (D3), (D4) adopt the diode with fast recovery characteristics.
The present invention adopts aforesaid single phase power factor correcting circuit, forms a kind of AC boosting three-phase power factor correcting circuit.Comprise: diode D1, D2, D3, D4; Power tube M1, M2; And the control circuit of power controlling pipe; Adopt the correcting circuit of symmetry; Be provided with inductance L 1 between D1 and the D3, be provided with inductance L 2 between D2 and the D4; Inductance L 1 and L2 are coupled mutually, on the same magnetic core of coiling; Wherein, V is connected with the anode of D1 and negative electrode one end of D2; The negative electrode of D1 is connected with an end of inductance L 1; The anode of D2 is connected with an end of inductance L 2; Two power tube M1 and M2 that have the inverse parallel diode are connected in series; Anode one end of the collector electrode of the other end of L1 and power tube M1 and diode D3 connects; Negative electrode one end of the emitter of the other end of L2 and power tube M2 and diode D4 connects; Capacitor C 1 and C2 are connected in series; C1 two ends parallel resistance R1; C2 two ends parallel resistance R2; The negative electrode of D3 links to each other with output DC+ with the positive pole of capacitor C 1; The anode of D4 links to each other with output DC-with the negative pole of capacitor C 2; The zero line of each phase links to each other with the common port of power tube M1, M2; The C1 of each phase, the common port of C2 are connected on the zero line jointly.
The L1 of aforesaid each phase of AC boosting three-phase power factor correcting circuit and L2 are merged into inductance L 1, one end and link to each other with V, and negative electrode one end of the anode of the other end and diode D1 and diode D2 connects; Anode one end of the collector electrode of the negative electrode of D1 and power tube M1 and diode D3 connects; The anode of D2 is connected with the emitter of power tube M2 and negative electrode one end of diode D4.
Alternating current boosting power factor correction circuit of the present invention compared with prior art, has following remarkable advantages and beneficial effect:
The present invention adopts the AC boosting pattern to replace traditional DC boosting, compare with general pfc circuit, on power flow, reduce by a diode, can improve the efficient of circuit, control system can adopt the control model of any power factor correction simultaneously, and current acquisition transducer S1, S2 can change the position according to the difference of control model.Device from circuit, power switch pipe M1 in the circuit of the present invention and M2 are because series connection, can do very easily and become components and parts together, inductance L 1 and L2 become components and parts because coupling also can be done very easily together, compare with traditional single phase boost pfc circuit, output capacitance that circuit devcie of the present invention is only many, circuit is simple; From control mode, circuit of the present invention, as long as we control when one of them power switch pipe work, another switching tube is turn-offed, and this is easy to realize, can adopt the control mode of the single-phase power factor correcting of any maturation, controls as average current type current.
Because its three-phase power factor correcting circuit, because be that the circuit of power factor correction that three AC boosting recited above are single-phase is connected on the electrical network of three-phase four-wire system with star connection, each all connects an AC boosting single phase power factor correcting circuit recited above mutually, and each module all works alone.
Description of drawings
Fig. 1 is traditional single phase boost pfc circuit schematic diagram;
Fig. 2 is the AC boosting single phase power factor correcting circuit principle assumption diagram that has two inductance;
Fig. 3 is the AC boosting single phase power factor correcting circuit principle assumption diagram of an inductance;
Fig. 4 is the AC boosting three-phase power factor correcting circuit principle assumption diagram with six inductance;
Fig. 5 is the AC boosting three-phase power factor correcting circuit principle assumption diagram with three inductance;
The AC boosting single phase power factor correcting circuit application principle figure that Fig. 6 designs for the present invention;
The AC boosting three-phase power factor correcting circuit application principle figure that Fig. 7 designs for the present invention;
Fig. 8 is for adopting the single-phase arc welding inverter schematic diagram of the present invention's design;
Fig. 9 is for adopting the three-phase arc welding inverter schematic diagram of the present invention's design.
Embodiment
Below in conjunction with Figure of description specific embodiments of the invention are illustrated:
See also shown in Figure 2, a kind of AC boosting single phase power factor correcting circuit of the present invention.The anode of V and D1 and the negative electrode of D2 one end connect; The negative electrode of D1 is connected with an end of inductance L 1; The anode of D2 is connected with an end of inductance L 2; Two power tube M1 and M2 that have the inverse parallel diode are connected in series; Anode one end of the collector electrode of the other end of L1 and power tube M1 and diode D3 connects; Negative electrode one end of the emitter of the other end of L2 and power tube M2 and diode D4 connects; Inductance L 1 and L2 are coupled mutually, on the same magnetic core of coiling; Capacitor C 1 and C2 are connected in series; C1 two ends parallel resistance R1; C2 two ends parallel resistance R2; The negative electrode of D3 links to each other with output DC+ with the positive pole of capacitor C 1; The negative pole of the anode of D4 and capacitor C 2 and output DC-connect; Zero line links to each other with the common port of power tube M1, M2.The common port suggestion of C1, C2 is connected on the zero line, also can not connect.
See also shown in Figure 3ly, wherein circuit can have another kind of connection, can be merged into inductance L 1, one end to L1 and L2 and link to each other with V, and negative electrode one end of the anode of the other end and diode D1 and diode D2 connects; Anode one end of the collector electrode of the negative electrode of D1 and power tube M1 and diode D3 connects; Negative electrode one end of the emitter of the anode of D2 and power tube M2 and diode D4 connects; Other connection is with top described the same.
Fig. 4 is for adopting the AC boosting three-phase power factor correcting circuit principle assumption diagram of six inductance, and Fig. 5 is for adopting the AC boosting three-phase power factor correcting circuit principle assumption diagram with three inductance.
The circuit of power factor correction that three AC boosting recited above are single-phase is connected on the electrical network of three-phase four-wire system with star connection, each all connects an AC boosting single phase power factor correcting circuit module recited above mutually, but wherein the output of the single-phase circuit of power factor correction of three AC boosting is connected together, and meets filter capacitor C1, C2 again and is connected in parallel on resistance R 1, the R2 at their two ends.The common port of power tube M1, the M2 of each module, the common port of filter capacitor C1, C2 and zero line suggestion are connected together, also can partly link together even all not connect mutually, just the connecting to neutral line can operate as normal yet for this circuit, and circuit theory diagrams as shown in Figure 4.In like manner it also has another kind of connection.The present invention adopts the AC boosting pattern to replace traditional DC boosting, compare with general pfc circuit, on power flow, reduce by a diode, can improve the efficient of circuit, control system can adopt the control model of any power factor correction simultaneously, and current acquisition transducer S1, S2 can change the position according to the difference of control model.
A kind of AC boosting single phase power factor correcting circuit, power switch component M1 and power switch component M2 adopt MOSFET or IGBT, and when adopting MOSFET, inverse parallel diode DM1, the DM2 of power switch can replace with the body diode of MOSFET.Switching frequency can be at 5KHz in the 100KHz scope.
Described capacitor C 1, C2 range of capacity are 20uF-3300uF, resistance R 1, R2 resistance value scope are 2K-100K, its effect is to make capacitor C 1, C2 both end voltage equate that the inductance value scope of inductance L 1, L2 is 0.05mH-2.00mH, determines according to the size of switching frequency and the power output of circuit.
Described diode D1, D2, D3, D4 adopt the diode with fast recovery characteristics.
The basic functional principle of circuit of the present invention is: when V is timing, power tube M1 work M2 does not work, and forms a single phase boost pfc circuit by D1, L1, M1, D3, C1; When V when negative, power tube M2 work M1 does not work, form a single phase boost pfc circuit by D2, L2, M2, D4, C2, and traditional single phase power factor correcting circuit as shown in Figure 1, when Vin is timing D2, D4, L, S, D, C composition single phase boost pfc circuit, when Vin D1, D4, L, S, D, C when negative form a single phase boost pfc circuit, as seen circuit of the present invention is reducing by a diode than traditional single phase boost PFC on power flow, can improve the efficient of circuit.
Device from circuit, power switch pipe M1 in the circuit of the present invention and M2 are because series connection, can do very easily and become components and parts together, inductance L 1 and L2 become components and parts because coupling also can be done very easily together, compare with traditional single phase boost pfc circuit, output capacitance that circuit devcie of the present invention is only many, circuit is simple; From control mode, circuit of the present invention, as long as we control when one of them power switch pipe work, another switching tube is turn-offed, and this is easy to realize, just can adopt the control mode of the single-phase power factor correcting of any maturation, controls as average current type current.
A kind of AC boosting three-phase power factor correcting circuit, be connected on the electrical network of three-phase four-wire system with star connection because it is the circuit of power factor correction that three AC boosting recited above are single-phase, each all connects an AC boosting single phase power factor correcting circuit recited above mutually, each module all works alone, so it is the same that the described AC boosting single phase power factor correcting circuit of face is caught up with in its analysis, just no longer repeat here.
Two kinds of different connections of AC boosting single phase power factor correcting circuit, when circuit adopts two inductance, as shown in Figure 2, its basic ideas are: when V is timing, when switching tube M1 opens, pass through power supply, inductance L 1, diode D1, switching tube M1 forms a loop, when switching tube M1 turn-offs, inductance L 1 energy stored gives capacitor C 1 charging by diode D3, when V when negative, when switching tube M2 opens, pass through power supply, inductance L 2, diode D2, switching tube M2 forms a loop, when switching tube M2 turn-offed, inductance L 2 energy stored gave capacitor C 2 chargings by diode D4.
When circuit adopted an inductance, as shown in Figure 3, its basic ideas were: when V is timing, when switching tube M1 opens, by power supply, inductance L 1, diode D1, switching tube M1 forms a loop, when switching tube M1 turn-offs, inductance L 1 energy stored is by diode D1, D3 gives capacitor C 1 charging, when V when negative, when switching tube M2 opens, pass through power supply, inductance L 1, diode D2, switching tube M2 forms a loop, when switching tube M2 turn-offs, inductance L 1 energy stored is by diode D2, and D4 gives capacitor C 2 chargings, as seen when switching tube turn-offs, it Duos a diode operation than the circuit that two inductance are arranged, and circuit efficiency is low.
These two kinds of circuit respectively have pluses and minuses: when adopting an inductance, device will lack, but efficient is low, and when adopting two inductance, it is many that device is wanted, but circuit efficiency is higher, when circuit application, can adopt a kind of connection wherein as required.The AC boosting three-phase power factor correcting circuit, according to the different connections of single phase power factor correcting circuit, it is corresponding also two kinds of different connections.
Fig. 4 is for adopting the AC boosting three-phase power factor correcting circuit principle assumption diagram of six inductance, and Fig. 5 is for adopting the AC boosting three-phase power factor correcting circuit principle assumption diagram with three inductance, and it is described the same to analyze the face of catching up with, and just no longer repeats here.
Adopt design of the present invention can replace traditional circuit of power factor correction, by the capacitor C 1 of choosing recited above, C2 range of capacity 20uF-3300uF, resistance R 1, R2 resistance value scope 2K-100K, inductance L 1, the inductance value scope 0.05mH-2.00mH of L2, power switch pipe M1, M2 adopts MOSFET or IGBT, switching frequency can be at 5KHz in the 100KHz scope, add the EMI module, be placed on the input of power supply, the control power supply is with respect to the load characteristic of electrical network, improve power factor correction, with the harm of the harmonic wave that reduces power supply to electrical network, and the capacity of electric power system is fully utilized, the efficient of power supply is further enhanced, can be suitable for different loads according to demand, Fig. 6 adds the EMI filtration module at power input to design application principle figure in single phase circuit according to the present invention, Fig. 7 adds the EMI filtration module at power input to design application principle figure in three-phase circuit according to the present invention, mainly be divided into two parts: the one, harmonic shutter, also can be called the voltage preconditioner or the power factor correction utmost point, it is made up of the alternating current boosting power factor correction circuit of EMI filtration module and the present invention's design, and the 2nd, the different loads that connects according to demand.
Fig. 8 is the application of the design according to the present invention and the single-phase arc welding inverter schematic diagram of arc welding inverter, Fig. 9 is the application of the design according to the present invention and the three-phase arc welding inverter schematic diagram of arc welding inverter, comprise two parts in general: the one, harmonic shutter, also can be called the voltage preconditioner or the power factor correction utmost point, it is made up of the alternating current boosting power factor correction circuit of EMI filtration module and the present invention's design, the 2nd, power inverter, just traditional arc welding inverter remove input rectifying filtering part.Each system independently naturally of these two parts, circuit of power factor correction is to be used for improving power factor, reduce the harm of power supply, and power inverter is the needed form of energy conversion load with electrical network, is exactly low voltage, big electric current concerning arc welding inverter to electrical network.
Claims (9)
1. alternating current boosting power factor correction circuit comprises: diode (D1), (D2), (D3), (D4); Power tube (M1), (M2); And the control circuit of power controlling pipe; It is characterized in that: in single phase power factor correcting circuit, (D1) and be provided with inductance (L1) (D3), (D2) and be provided with inductance (L2) (D4); Described inductance (L1) and (L2) coupling mutually are on the same magnetic core of coiling; Wherein, (V) be connected with the anode of (D1) and negative electrode one end of (D2); (D1) negative electrode is connected with an end of inductance (L1); (D2) anode is connected with an end of inductance (L2); Two have the power tube (M1) of inverse parallel diode and (M2) are connected in series; Anode one end of the collector electrode of the other end (L1) and power tube (M1) and diode (D3) connects; Negative electrode one end of the emitter of the other end (L2) and power tube (M2) and diode (D4) connects; Electric capacity (C1) and (C2) be connected in series; (C1) two ends parallel resistance (R1); (C2) two ends parallel resistance (R2); (D3) negative electrode links to each other with output DC+ with the positive pole of electric capacity (C1); The negative pole of anode (D4) and electric capacity (C2) and output DC-connect; Zero line links to each other with the common port of power tube (M1), (M2); (C1), the common port of (C2) is connected on the zero line.
2. alternating current boosting power factor correction circuit according to claim 1, it is characterized in that: with described (L1) and (L2) be merged into an inductance (L1), one end links to each other with V, and negative electrode one end of the anode of the other end and diode (D1) and diode (D2) connects; Anode one end of the collector electrode of negative electrode (D1) and power tube (M1) and diode (D3) connects; (D2) anode is connected with the emitter of power tube (M2) and negative electrode one end of diode (D4).
3. alternating current boosting power factor correction circuit according to claim 1 is characterized in that: described power switch component (M1) and power switch component (M2) adopt MOSFET or IGBT, and the frequency of switch element is 5KHz-100KHz; When adopting MOSFET, the inverse parallel diode (DM1) of power switch pipe, (DM2) can replace with the body diode of MOSFET.
4. alternating current boosting power factor correction circuit according to claim 1 is characterized in that: described diode (D1), (D2), (D3), (D4) adopt the diode with fast recovery characteristics.
5. alternating current boosting power factor correction circuit according to claim 1 is characterized in that: described electric capacity (C1), (C2) are 20uF-3300uF.
6. alternating current boosting power factor correction circuit according to claim 1 is characterized in that: described resistance (R1), (R2) resistance value scope are 2K-100K.
7. alternating current boosting power factor correction circuit according to claim 1 is characterized in that: the inductance value scope of described inductance (L1), (L2) is 0.05mH-2.00mH.
8. an AC boosting three-phase power factor correcting circuit comprises: diode (D1), (D2), (D3), (D4); Power tube (M1), (M2); And the control circuit of power controlling pipe; It is characterized in that: (D1) and be provided with inductance (L1) (D3), (D2) and be provided with inductance (L2) (D4); Described inductance (L1) and (L2) coupling mutually are on the same magnetic core of coiling; Wherein, (V) be connected with the anode of (D1) and negative electrode one end of (D2); (D1) negative electrode is connected with an end of inductance (L1); (D2) anode is connected with an end of inductance (L2); Two have the power tube (M1) of inverse parallel diode and (M2) are connected in series; Anode one end of the collector electrode of the other end (L1) and power tube (M1) and diode (D3) connects; Negative electrode one end of the emitter of the other end (L2) and power tube (M2) and diode (D4) connects; Electric capacity (C1) and (C2) be connected in series; (C1) two ends parallel resistance (R1); (C2) two ends parallel resistance (R2); (D3) negative electrode links to each other with output DC+ with the positive pole of electric capacity (C1); (D4) anode links to each other with output DC-with the negative pole of electric capacity (C2); The zero line of each phase links to each other with the common port of power tube (M1), (M2); (C1) of each phase, the common port of (C2) are connected on the zero line jointly.
9. AC boosting three-phase power factor correcting circuit according to claim 8, it is characterized in that: (L1) of described each phase and (L2) be merged into an inductance (L1), one end links to each other with (V), and negative electrode one end of the anode of the other end and diode (D1) and diode (D2) connects; Anode one end of the collector electrode of negative electrode (D1) and power tube (M1) and diode (D3) connects; (D2) anode is connected with the emitter of power tube (M2) and negative electrode one end of diode (D4).
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| CN101917012A (en) * | 2010-09-15 | 2010-12-15 | 淄博凯星电机有限公司 | Three-phase rectifying reactive power compensation circuit |
| CN102097957A (en) * | 2010-12-07 | 2011-06-15 | 河北先控电源设备有限公司 | Boost rectifying circuit with three-level output |
| CN102694460A (en) * | 2011-03-24 | 2012-09-26 | 南京博兰得电子科技有限公司 | Three-phase boost-buck PFC converter |
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| CN104218809A (en) * | 2013-05-29 | 2014-12-17 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | A circuit device integrating power factor correction and DC-DC conversion |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101917012A (en) * | 2010-09-15 | 2010-12-15 | 淄博凯星电机有限公司 | Three-phase rectifying reactive power compensation circuit |
| CN102097957A (en) * | 2010-12-07 | 2011-06-15 | 河北先控电源设备有限公司 | Boost rectifying circuit with three-level output |
| CN102694460A (en) * | 2011-03-24 | 2012-09-26 | 南京博兰得电子科技有限公司 | Three-phase boost-buck PFC converter |
| CN102694460B (en) * | 2011-03-24 | 2014-12-17 | 南京博兰得电子科技有限公司 | Three-phase boost-buck PFC converter |
| CN103427684A (en) * | 2012-05-14 | 2013-12-04 | 台达电子企业管理（上海）有限公司 | Three-phase rectifier circuit |
| CN102868294A (en) * | 2012-10-22 | 2013-01-09 | 苏州舜唐新能源电控设备有限公司 | Control device of power factor efficiency of vehicle-mounted charger |
| CN103904917A (en) * | 2012-12-26 | 2014-07-02 | 中兴通讯股份有限公司 | AC rectification voltage-boosting circuit and rectification voltage-boosting device |
| CN104218809A (en) * | 2013-05-29 | 2014-12-17 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | A circuit device integrating power factor correction and DC-DC conversion |
| CN104218809B (en) * | 2013-05-29 | 2019-01-22 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | A kind of circuit device of integrated power factor correcting and DC-dc conversion |
| CN103825454A (en) * | 2013-12-17 | 2014-05-28 | 中国船舶重工集团公司第七一九研究所 | Three-level DC converter apparatus and electric energy conversion method employing same |
| CN103825454B (en) * | 2013-12-17 | 2016-08-17 | 中国船舶重工集团公司第七一九研究所 | A kind of three level DC converting means and use the transformation of electrical energy method of this device |
| CN107887898A (en) * | 2016-09-29 | 2018-04-06 | 维谛技术有限公司 | A kind of surging protection circuit and power electronic equipment of Single-phase PFC circuit |
| CN107887897A (en) * | 2016-09-29 | 2018-04-06 | 维谛技术有限公司 | A kind of three-phase PFC surging protection circuits and power electronic equipment |
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Application publication date: 20100901 |