CN109217699A - A kind of Sofe Switch High Power Factor A.C.-D.C. converter - Google Patents
A kind of Sofe Switch High Power Factor A.C.-D.C. converter Download PDFInfo
- Publication number
- CN109217699A CN109217699A CN201811239349.5A CN201811239349A CN109217699A CN 109217699 A CN109217699 A CN 109217699A CN 201811239349 A CN201811239349 A CN 201811239349A CN 109217699 A CN109217699 A CN 109217699A
- Authority
- CN
- China
- Prior art keywords
- circuit
- output
- power factor
- termination
- switching tube
- 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
- 238000012937 correction Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 57
- 238000012546 transfer Methods 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 20
- 230000003321 amplification Effects 0.000 claims description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 11
- 102100029469 WD repeat and HMG-box DNA-binding protein 1 Human genes 0.000 claims description 9
- 101710097421 WD repeat and HMG-box DNA-binding protein 1 Proteins 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001939 inductive effect Effects 0.000 description 5
- 210000004899 c-terminal region Anatomy 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000013519 translation Methods 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
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention discloses a kind of Sofe Switch High Power Factor A.C.-D.C. converters, Sofe Switch High Power Factor A.C.-D.C. converter proposed by the present invention can realize that the no-voltage of the switching tube of circuit of power factor correction opens (Sofe Switch) in full voltage input range, and obtain higher power factor；Only have an input rectifying pipe conducting in every half power frequency period, reduces the loss of input rectification circuit；The quasi-single-stage soft switch power factor correcting circuit that a kind of connection type of the invention is constituted is compared with traditional Boost type quasi-single-stage circuit, busbar voltage can substantially reduce, therefore the voltage stress of switching tube can be reduced, is applied to full voltage input range (90V-265Vac).
Description
Technical field
The invention belongs to switch power technology fields, are related to a kind of Sofe Switch High Power Factor A.C.-D.C. converter.
Background technique
The extensive use of power electronic equipment causes seriously to pollute to utility network, and harmonic wave and idle problem are increasingly subject to
Pay attention to.In order to mitigate the extent of injury of electric pollution, many countries have formulated corresponding standard, such as International Electrotechnical Commission one after another
Harmonic standard IEEE555-2 and IEC1000-3-2 etc..PFC (Power Factor Correction, referred to as
PFC) technology, as active power factor correction (Active Power Factor Correction, abbreviation APFC) technology can be with
Harmonic wave is effectively inhibited, therefore before circuit of power factor correction (PFC) is commonly used for AC-DC Technics of Power Electronic Conversion device
Grade.
Fig. 1 shows a kind of topological structure of traditional two-stage type AC-DC Technics of Power Electronic Conversion device.Prime is usual
Using boosting (Boost) circuit as PFC, to realize that alternating current-direct current energy is converted and exports stable DC voltage；Afterwards
Grade uses efficient LLC half bridge resonant, realizes isolation and buck functionality.
Boost circuit is that structure is simple as the advantages of prime power factor correction circuit, is easy to get higher power
Factor, however it is there is also certain disadvantage, such as uses continuous current mode, then there are larger Reverse recoveries for its freewheeling diode
Problem, switching process are hard switching, and efficiency is caused to reduce；And as used discontinuous mode, then input current peak value is larger, switchs
Journey is hard switching, and efficiency is lower, this external inductance volume is larger；Using electric current critical conduction mode, although switching tube may be implemented
No-voltage open with reduce loss, but detect inductor winding both end voltage, the complexity of control is increased, in addition, in height
It presses under input condition, can only realize that switching tube in resonance valley conduction, can not achieve complete Sofe Switch.
Summary of the invention
The present invention proposes that a kind of Sofe Switch High Power Factor A.C.-D.C. converter, the Sofe Switch High Power Factor are handed over
Stream-DC converter includes soft switch power factor correcting circuit, wherein
The soft switch power factor correcting circuit includes: filter, rectifying tube D1, rectifying tube D2, continued flow tube D3, afterflow
Pipe D4, inductance L1, capacitor C1, switching tube Q1, switching tube Q2, capacitor CB；
Wherein, one end of an input termination alternating current source Vac of filter, another input terminal alternating current source Vac's is another
End, one of filter export the cathode of the anode and rectifying tube D2 that meet rectifying tube D1, the output termination of filter
The anode of flow tube D3 and the cathode of continued flow tube D4 are connected, the cathode of rectifying tube D1 connects the leakage of the cathode, switching tube Q1 of flow tube D3
The anode of pole and capacitor CB, the anode of rectifying tube D2 connect the negative terminal of the anode of flow tube D4, the source electrode of switching tube Q2, capacitor CB
And with reference to ground, the anode of continued flow tube D3 connects one end of inductance L1, one end of another termination capacitor C1 of inductance L1, capacitor C1's
The grid of the drain electrode of the source electrode and switching tube Q2 of another termination switching tube Q1, switching tube Q1 and switching tube Q2 receive control respectively
The driving signal of circuit output；
The soft switch power factor correcting circuit realizes the correction to AC input current, so that AC input current wave
Shape exports a DC voltage close to sine wave, and at the both ends capacitor CB；
It preferably, further include load, the load connects between the anode (end A) of capacitor CB and negative terminal (end B), and load is electricity
The passive loads such as resistance, LED, battery or DC-DC transfer circuit；
It preferably, further include load, the load connects the switch bridge arm midpoint (C-terminal) that switching tube Q1 and switching tube Q2 is constituted
Between the negative terminal (end B) of capacitor CB, load can be resistance or DC-DC transfer circuit；
It preferably, further include load, the load connects the switch bridge arm midpoint (C-terminal) that switching tube Q1 and switching tube Q2 is constituted
Between the midpoint (end D) for two series capacitances for constituting capacitor CB, load can be resistance or DC-DC transfer circuit；
The DC voltage at the both ends capacitor CB is carried out DC voltage conversion or is converted to straight by the DC-DC transfer circuit
Galvanic electricity stream；
Preferably, the Sofe Switch High Power Factor A.C.-D.C. converter further includes control circuit, the control circuit
It can be PFM control, PWM control or PFM+PWM control；
Preferably, the control circuit includes PFM control error amplifying element, saw-tooth wave generating circuit, PWM control error
Circuit occurs for amplifying element, comparator Com2, driving signal.
Further, the PFM control error amplifying element includes resistance R1, the first compensation network, the first amplifier OP1 and electricity
It presses benchmark Vref1, the resistance R1 mono- to terminate the end FB, receives the output voltage or current signal of main circuit feedback, resistance R1's
One end of the first compensation network of another termination and the negative input end of amplifier OP1, the positive input termination voltage reference of amplifier OP1
The anode of Vref1, the negative terminal of voltage reference Vref1 connect with reference to ground, and the first amplifier OP1's of output termination of the first compensation network is defeated
Outlet；PFM control error amplifying element the signal difference between FB received signal and voltage reference Vref1 is compared,
Amplification generates error amplification signal Vcomp1；
The saw-tooth wave generating circuit includes voltage reference Vref2, voltage-controlled current source VCI, capacitor C1, switch S1, voltage
Benchmark Vref4, comparator Com1, the output end of the negative input termination amplifier OP1 of voltage-controlled current source VCI, voltage-controlled current source VCI's
The anode of positive input termination voltage reference Vref3, the negative terminal of voltage reference Vref3, which connects, refers to ground, and one of voltage-controlled current source VCI
For output termination with reference to ground, another output connects the negative input of one end of capacitor C1, one end of switch S1 and comparator Com1
End, the control of the output termination switch S1 of one end comparator Com1 of the positive input termination voltage reference Vref4 of comparator Com1
End, the other end ground connection of switch S1；Error amplification signal Vcomp1 generates changeable frequency to saw-tooth wave generating circuit based on the received
Sawtooth signal Vsaw；
The PWM control error amplifying element includes resistance R2, the second compensation network, amplifier OP2 and voltage reference Vref2
The end VFB is terminated with limiter LIMV, the resistance R2 mono-, receives the output voltage signal of main circuit feedback, resistance R2's is another
One end of the second compensation network and the negative input end of amplifier OP2 are terminated, the positive input termination voltage reference Vref2's of amplifier OP2
Anode, the negative terminal of voltage reference Vref2 connect with reference to ground, the output end of the output termination amplifier OP2 of the second compensation network, amplifier
The input terminal of the output termination limiter LIMV2 of OP2, the output end output error amplified signal Vcomp2 of limiter LIMV2；
PWM control error amplifying element is compared the signal difference between VFB received signal and voltage reference Vref1, amplifies
The output error amplified signal Vcomp2 after limiter LIMV limitation amplitude；
The output end of the negative input termination saw-tooth wave generating circuit of comparator Com2, receives sawtooth signal Vsaw, compares
The output end of the positive input termination PWM control error amplifying element of device Com2, receives the error amplification signal Vcomp2 of its output；
Comparator Com2 is compared received sawtooth signal Vsaw and error amplification signal Vcomp2, output pulse signal
Vpulse；
The driving signal occur circuit include phase inverter INV, the first delay circuit, the second delay circuit, with door AND1,
With door AND2 and driving circuit 1041；The phase inverter INV input termination the second delay circuit input terminal and with door
An input terminal of AND2, return pulse signal Vpulse, phase inverter INV output termination the first delay circuit input terminal and
With an input terminal of door AND1, an input terminal of driving circuit is terminated with the output of door AND1, two of driving circuit are defeated
Outlet distinguishes output drive signal Vg_Q1And Vg_Q2；First delay circuit and the second delay circuit generate respectively delay Td1 and
Td2, for generating driving signal Vg_Q1And Vg_Q2Between dead time, the driving circuit for enhance driving capability and
Driving signal bootstrapping.
Preferably, a kind of Sofe Switch High Power Factor A.C.-D.C. converter, including the soft switch power factor correcting
Circuit and half-bridge logical link control (LLC) resonant DC-DC transfer circuit, the switching tube of the half-bridge logical link control (LLC) resonant DC-DC transfer circuit with
The switching tube of Sofe Switch high-power factor correcting circuit is multiplexed, and the half-bridge logical link control (LLC) resonant DC-DC transfer circuit further includes humorous
Shake inductance Lr, resonant capacitance Cr, transformer T2, output rectification circuit 201, output capacitance Co；A termination of resonant inductance Lr is opened
Close the drain electrode of the source electrode and switching tube Q2 of pipe Q1, one end of another termination resonant capacitance Cr of resonant inductance Lr, resonant capacitance Cr
Another termination transformer T2 primary side winding one end, another termination of transformer T2 primary side winding with reference to ground, transformer T2's
Vice-side winding connects the input terminal of output rectifier 201, and the output of output rectifier 201 terminates output capacitance Co；
Preferably, a kind of Sofe Switch High Power Factor A.C.-D.C. converter, including the soft switch power factor correcting
Circuit and half bridge flyback circuit, the switching tube of the half bridge flyback circuit and the switching tube of Sofe Switch high-power factor correcting circuit
Multiplexing.The half bridge flyback circuit further includes capacitance Cx, transformer T3, output rectifying tube Do, output capacitance Co；Blocking electricity
Hold the drain electrode of the source electrode and switching tube Q2 of a termination switching tube Q1 of Cx, another termination transformer T3 primary side of capacitance Cx around
The Same Name of Ends of group, for the different name termination of transformer T3 primary side winding with reference to ground, the vice-side winding different name termination output of transformer T3 is whole
The input terminal of device Do, the anode of the output termination output capacitance Co of output rectifier Do are flowed, the negative terminal of output capacitance Co connects transformation
The Same Name of Ends of device T3 vice-side winding；
Preferably, rectifying tube D1, rectifying tube D2 and the afterflow in the Sofe Switch High Power Factor A.C.-D.C. converter
Pipe D3, continued flow tube D4 are diodes,
Preferably, rectifying tube D1, rectifying tube D2 and the afterflow in the Sofe Switch High Power Factor A.C.-D.C. converter
Pipe D3, continued flow tube D4 can also be partly or entirely MOSFET.
It can be with the beneficial effects of the present invention are: Sofe Switch High Power Factor A.C.-D.C. converter proposed by the present invention
It realizes that no-voltage of the switching tube of circuit of power factor correction in full input voltage range is opened (Sofe Switch), and obtains higher
Power factor；Only have an input rectifying pipe conducting in every half power frequency period, reduces the loss of input rectification circuit；This hair
The quasi-single-stage soft switch power factor correcting circuit and traditional Boost type quasi-single-stage circuit phase that a kind of bright connection type is constituted
Than busbar voltage can substantially reduce, therefore can reduce the voltage stress of switching tube, be applied to full voltage input range
(90V-265Vac)。
Detailed description of the invention
Fig. 1 is a kind of two-stage type AC-DC converters of prior art；
Fig. 2 shows the first circuit structure diagrams of Sofe Switch High Power Factor A.C.-D.C. converter of the invention；
Fig. 3 shows Sofe Switch High Power Factor second of circuit structure diagram of A.C.-D.C. converter of the invention；
Fig. 4 shows the third circuit structure diagram of Sofe Switch High Power Factor A.C.-D.C. converter of the invention；
Fig. 5 shows the Partial key waveform of Sofe Switch High Power Factor A.C.-D.C. converter of the invention；
Fig. 6 shows the schematic equivalent circuit under the first operation mode of Sofe Switch high power factor circuit of the invention；
Fig. 7 shows the schematic equivalent circuit under the second operation mode of Sofe Switch high power factor circuit of the invention；
Fig. 8 shows the schematic equivalent circuit under Sofe Switch high power factor circuit third operation mode of the invention；
Fig. 9 shows the schematic equivalent circuit under the 4th operation mode of Sofe Switch high power factor circuit of the invention；
Figure 10 shows the schematic equivalent circuit under the 5th operation mode of Sofe Switch high power factor circuit of the invention；
Figure 11 shows the schematic equivalent circuit under the 6th operation mode of Sofe Switch high power factor circuit of the invention；
Figure 12 shows the schematic equivalent circuit under the 7th operation mode of Sofe Switch high power factor circuit of the invention；
Figure 13 shows the schematic equivalent circuit under the 8th operation mode of Sofe Switch high power factor circuit of the invention；
Figure 14 shows half power frequency period of Sofe Switch High Power Factor A.C.-D.C. converter exchange input electricity of the invention
Stream calculation curve；
It is in DC bus-bar voltage certain that Figure 15 shows Sofe Switch High Power Factor A.C.-D.C. converter of the invention
In the case of working frequency and AC-input voltage relation curve；
Figure 16 shows the PFM+PWM control for being suitable for the invention Sofe Switch High Power Factor A.C.-D.C. converter
Circuit embodiments；
Figure 17 shows the Partial key waveforms of control circuit shown in Figure 16；
Figure 18 shows Sofe Switch High Power Factor the first specific embodiment of A.C.-D.C. converter of the invention；
Figure 19 shows Sofe Switch High Power Factor the second specific embodiment of A.C.-D.C. converter of the invention；
Figure 20 shows Sofe Switch High Power Factor A.C.-D.C. converter third specific embodiment of the invention；
Figure 21 shows the 4th specific embodiment of Sofe Switch High Power Factor A.C.-D.C. converter of the invention；
Figure 22 shows rectifying tube D1, D2 in Sofe Switch high power factor circuit of the invention and continued flow tube D3, D4 are adopted
With the schematic diagram after MOSFET；
Specific embodiment
The content of present invention is described in detail below in conjunction with circuit structure diagram of the present invention.
Referring to Fig. 2 shows Sofe Switch High Power Factor A.C.-D.C. converter of the present invention the first structure chart, it is described soft
Switching High Power Factor A.C.-D.C. converter includes soft switch power factor correcting circuit and load；
The soft switch power factor correcting circuit includes: filter, rectifying tube D1, rectifying tube D2, continued flow tube D3, afterflow
Pipe D4, inductance L1, capacitor C1, switching tube Q1, switching tube Q2, capacitor CB；Wherein, an input of filter terminates alternating current source
One end of Vac, the other end of another input terminal alternating current source Vac, one of filter exports the anode for meeting rectifying tube D1
The anode of flow tube D3 and the cathode of continued flow tube D4, rectifying tube are connected with an output termination of the cathode of rectifying tube D2, filter
The cathode of D1 connects the drain electrode of the cathode, switching tube Q1 of flow tube D3 and the anode of capacitor CB, and the anode of rectifying tube D2 connects stream
The anode of pipe D4, the source electrode of switching tube Q2, the negative terminal of capacitor CB and reference ground, the anode of continued flow tube D3 meet the one of inductance L1
End, one end of another termination capacitor C1 of inductance L1, the source electrode of another termination switching tube Q1 of capacitor C1 and switching tube Q2's
The grid of drain electrode, switching tube Q1 and switching tube Q2 receive the driving signal of control circuit output respectively；
The load connects between the anode (end A) of capacitor CB and negative terminal (end B), and load is the nothings such as resistance, LED, battery
Source load or DC-DC transfer circuit；
Sofe Switch High Power Factor second of structure chart of A.C.-D.C. converter of the invention referring to shown in Fig. 3, it is described
Sofe Switch High Power Factor A.C.-D.C. converter includes soft switch power factor correcting circuit and load；
The soft switch power factor correcting circuit includes: filter, rectifying tube D1, rectifying tube D2, continued flow tube D3, afterflow
Pipe D4, inductance L1, capacitor C1, switching tube Q1, switching tube Q2, capacitor CB；Wherein, an input of filter terminates alternating current source
One end of Vac, the other end of another input terminal alternating current source Vac, one of filter exports the anode for meeting rectifying tube D1
The anode of flow tube D3 and the cathode of continued flow tube D4, rectifying tube are connected with an output termination of the cathode of rectifying tube D2, filter
The cathode of D1 connects the drain electrode of the cathode, switching tube Q1 of flow tube D3 and the anode of capacitor CB, and the anode of rectifying tube D2 connects stream
The anode of pipe D4, the source electrode of switching tube Q2, the negative terminal of capacitor CB and reference ground, the anode of continued flow tube D3 meet the one of inductance L1
End, one end of another termination capacitor C1 of inductance L1, the source electrode of another termination switching tube Q1 of capacitor C1 and switching tube Q2's
The grid of drain electrode, switching tube Q1 and switching tube Q2 receive the driving signal of control circuit output respectively；
The load meets the negative terminal (B at switch bridge arm midpoint (C-terminal) and capacitor CB that switching tube Q1 and switching tube Q2 is constituted
End) between, load can be resistance or DC-DC transfer circuit；
The third structure chart of Sofe Switch High Power Factor A.C.-D.C. converter of the invention referring to shown in Fig. 4, it is described
A.C.-D.C. converter includes soft switch power factor correcting circuit and load；
The soft switch power factor correcting circuit includes: filter, rectifying tube D1, rectifying tube D2, continued flow tube D3, afterflow
Pipe D4, inductance L1, capacitor C1, switching tube Q1, switching tube Q2, capacitor CB；Wherein, an input of filter terminates alternating current source
One end of Vac, the other end of another input terminal alternating current source Vac, one of filter exports the anode for meeting rectifying tube D1
With the cathode of rectifying tube D2, one of filter exports the cathode of the anode and continued flow tube D4 that meet rectifying tube D3, rectifying tube
The cathode of D1 connects the drain electrode of the cathode, switching tube Q1 of flow tube D3 and the anode of capacitor CB, and the anode of rectifying tube D2 connects stream
The anode of pipe D4, the source electrode of switching tube Q2, the negative terminal of capacitor CB and reference ground, the anode of continued flow tube D3 meet the one of inductance L1
End, one end of another termination capacitor C1 of inductance L1, the source electrode of another termination switching tube Q1 of capacitor C1 and switching tube Q2's
The grid of drain electrode, switching tube Q1 and switching tube Q2 receive the driving signal of control circuit output respectively；
The capacitor CB is in series by capacitor CB1 and capacitor CB2, and the load meets switching tube Q1 and switching tube Q2 and constitutes
Switch bridge arm midpoint (C-terminal) and capacitor CB1 and capacitor CB2 midpoint (end D) between, it is straight that load can be resistance or direct current-
Flow translation circuit；
The Partial key waveform of Sofe Switch High Power Factor A.C.-D.C. converter of the invention with reference to shown in Fig. 5,
Middle VacIndicate the AC-input voltage that power grid provides, Vc1_avgThe waveform after high fdrequency component, i are filtered out for capacitor C1 voltageLIt indicates
Flow through the electric current of inductance L1, iacIndicate the ac bus electric current that power grid is flowed into through wave filter, iinIndicate the friendship before filter
Flow bus current, Vg_Q1And Vg_Q2Respectively indicate the grid voltage of switching tube Q1 and switching tube Q2, iQ1And iQ2It respectively indicates and flows through
The electric current of switching tube Q1 and switching tube Q2；Wherein, for simplicity, Vg_Q1And Vg_Q2AC-input voltage is only depicted respectively
VacThe waveform of each switch periods of positive-negative half-cycle is used to describe the course of work of circuit, and does not account for dead time.
When AC-input voltage Vac is in positive half period, the course of work of circuit can simply be divided into four-stage:
First stage [t0-t1]: at the t0 moment, switching tube Q2 shutdown, due to iLIt is negative, corresponding iQ1Also it is negative, therefore
iQ1The body diode of switching tube Q1 is first flowed through, so that switching tube Q1 no-voltage is connected, continued flow tube D3 is held on, equivalent circuit
As shown in Figure 6.During this period, inductance L1 and capacitor C1 resonance, iLRisen by negative maximum value resonance, loop equation is；
Wherein, VCBFor capacitor CB both end voltage, i.e. DC bus-bar voltage.
Second stage [t1-t2]: at the t1 moment, due to iLZero is risen to, continued flow tube D3 shutdown, rectifying tube D1 conducting continues
Flow tube D3 shutdown, equivalent circuit are as shown in Figure 7.During this period, inductive current iL1Resonance rises, loop equation are as follows:
Phase III [t2-t3]: at the t2 moment, switching tube Q1 shutdown, inductive current iLFirst flow through the body of switching tube Q2
Diode, so that switching tube Q2 no-voltage is open-minded, rectifying tube D1 is held on, and equivalent circuit is as shown in Figure 8.During this period, electric
Inducing current iLResonance decline, loop equation are as follows:
Fourth stage [t3-t4]: at the t3 moment, inductive current iLDrop to zero, rectifying tube D1 shutdown, continued flow tube D4 is led
Logical, equivalent circuit is as shown in Figure 9.During this period, inductive current iL1Continue resonance decline, loop equation are as follows:
When AC-input voltage is negative half period, according to the symmetry of circuit it is found that the course of work of circuit is similar, rectification
Pipe D2 and continued flow tube D3 conducting, with reference to the waveform at t5-t9 moment, the circuit course of work can equally be divided into four-stage, each rank
The equivalent circuit of section is respectively as shown in Figure 10-Figure 13, no longer detailed analysis here.
By the above circuit analysis it is recognised that only having a rectifying tube conducting, therefore rectified current in every half of power frequency period
It is lower that path loss consumes opposite conventional rectifier circuit；In addition, switching tube Q1 and switching tube Q2 can realize that no-voltage is connected, that is, realize
Sofe Switch.
AC input current can be calculated in the expression formula of half of power frequency period according to the above analysis approximation are as follows:
Wherein,The expression formula of switch periods Ts are as follows:
Waveform according to formula (5) and (6) available AC input current iac is as shown in figure 14, it is seen then that exchange input
Current waveform is very close sinusoidal, so as to calculate Sofe Switch high power factor circuit of the invention under certain operating condition
Switching frequency and AC-input voltage virtual value between relation curve enter shown in Figure 15.As shown in Figure 15, pass through adjusting
Gain of the adjustable DC bus-bar voltage voltage of frequency relative to AC-input voltage, it means that Sofe Switch of the invention is high
Power factor circuit can use frequency control (PFM).It will also realize that as those skilled in the art, in certain switching frequency
Under, the PWM mode for adjusting duty ratio controls the voltage gain of Sofe Switch high power factor circuit of the invention, equally may be used
To achieve the purpose that adjust output voltage/electric current.Therefore, Sofe Switch high power factor circuit of the invention can be controlled using PFM
The mixed-control mode that system, PWM control or PFM+PWM are controlled.Above-mentioned control mode exhaustion go out can be suitably used for it is of the invention
All feasible control modes of Sofe Switch high power factor circuit, those skilled in the art should be not difficult to be directed to essence of the invention
Mind finds out other applicable control modes.
According to circuit relationships, the voltage value V after capacitor C1 filters out high fdrequency component may further be derivedc1_avgIt is equal to
AC-input voltage Vac1/2, therefore capacitor C1 also acts as the effect divided to AC-input voltage, so that this hair
The voltage gain of bright Sofe Switch high power factor circuit is lower than traditional Boost circuit.
Figure 16 shows a kind of PFM+PWM control circuit specific implementation for being suitable for the invention A.C.-D.C. converter
It illustrates and is intended to；The control circuit includes PFM control error amplifying element 101, saw-tooth wave generating circuit 102, PWM control error
Circuit 104 occurs for amplifying element 103, comparator Com2, driving signal.
Further, the PFM control error amplifying element 101 includes resistance R1, compensation network 1, amplifier OP1 and voltage base
Quasi- Vref1, the resistance R1 mono- terminate the end FB, receive the output voltage or current signal of main circuit feedback, resistance R1's is another
One end of compensation network 1 and the negative input end of amplifier OP1 are terminated, the positive input termination voltage reference Vref1 of amplifier OP1 is just
End, the negative terminal of voltage reference Vref1 connect with reference to ground, the output end of the output termination amplifier OP1 of compensation network 1；PFM controls error
Amplifying element 101 is compared the signal difference between FB received signal and voltage reference Vref1, amplifies, and generates error
Amplified signal Vcomp1；
The saw-tooth wave generating circuit 102 includes voltage reference Vref2, voltage-controlled current source VCI, capacitor C1, switch S1, electricity
Press benchmark Vref4, comparator Com1, the output end of the negative input termination amplifier OP1 of voltage-controlled current source VCI, voltage-controlled current source VCI
Positive input termination voltage reference Vref3 anode, the negative terminal of voltage reference Vref3 connect with reference to ground, the one of voltage-controlled current source VCI
For a output termination with reference to ground, it is defeated that another output connects bearing for one end of capacitor C1, one end of switch S1 and comparator Com1
Enter end, the control of the output termination switch S1 of one end comparator Com1 of the positive input termination voltage reference Vref4 of comparator Com1
End processed, the other end ground connection of switch S1；Error amplification signal Vcomp1 generates frequency to saw-tooth wave generating circuit 102 based on the received
Variable sawtooth signal Vsaw；
The PWM control error amplifying element 103 includes resistance R2, compensation network 2, amplifier OP2 and voltage reference Vref2
The end VFB is terminated with limiter LIMV, the resistance R2 mono-, receives the output voltage signal of main circuit feedback, resistance R2's is another
One end of compensation network 2 and the negative input end of amplifier OP2 are terminated, the positive input termination voltage reference Vref2 of amplifier OP2 is just
End, the negative terminal of voltage reference Vref2 connect with reference to ground, and the output end of the output termination amplifier OP2 of compensation network 2, amplifier OP2's is defeated
The input terminal of limiter LIMV2, the output end output error amplified signal Vcomp2 of limiter LIMV2 are terminated out；PWM control misses
Poor amplifying element 103 is compared the signal difference between VFB received signal and voltage reference Vref1, amplifies through clipping
Device LIMV limits output error amplified signal Vcomp2 after amplitude；
The output end of the negative input termination saw-tooth wave generating circuit 102 of comparator Com2, receives sawtooth signal Vsaw, than
The output end of positive input termination PWM control error amplifying element 103 compared with device Com2, receives the error amplification signal of its output
Vcomp2；Comparator Com2 is compared received sawtooth signal Vsaw and error amplification signal Vcomp2, exports pulse
Signal Vpulse；
The driving signal occur circuit 104 include phase inverter INV, delay circuit 1, delay circuit 2, with door AND1, with
Door AND2 and driving circuit 1041；The phase inverter INV's inputs the input terminal for terminating delay circuit 2 and one with door AND2
A input terminal, the output of return pulse signal Vpulse, phase inverter INV terminate the input terminal of delay circuit 1 and with door AND1's
One input terminal, an input terminal with the output termination driving circuit of door AND1, two output ends point of driving circuit 1041
Other output drive signal Vg_Q1And Vg_Q2；The delay circuit 1 and delay circuit 2 generate delay Td1 and Td2 respectively, for generating
Driving signal Vg_Q1And Vg_Q2Between dead time, the driving circuit 1041 is for enhancing driving capability and driving signal
Bootstrapping.
Figure 17 shows the key waveforms of Figure 16 control circuit, and the signal of two kinds of situations is controlled including PFM control and PWM
Figure；
The first situation: when output voltage is lower so that output voltage feedback signal VFB perseverance is lower than voltage reference Vref2
When, Vcomp2 is in permanent high state, due to the effect of limiter LIMV, so that Vcomp2 is clamped on Vref4/2；PFM control
Error amplifying element 101 plays circuit adjustment effect, exports the Vcomp1 signal influenced by circuit operating condition, Vcomp1 signal with
Difference between Vref3 changes the output electric current of voltage-controlled current source VCI, so that the frequency of sawtooth wave Vsaw is adjusted, and sawtooth wave
The peak value of Vsaw is constantly equal to Vref4；Output duty cycle is equal to 50%, frequency and sawtooth wave after Vcomp2 is compared with Vsaw
The consistent pulse signal Vpulse of Vsaw frequency, further through driving signal generation 104 output frequency of circuit, variable, duty ratio is connect
Nearly 50% driving signal Vg_Q1And Vg_Q2；Illustrate circuit adjustment process it is as follows: when main circuit by the external world influence so that
Output voltage increases, so that FB signal increases, through PFM control error amplifying element 101 Vcomp1 is declined, Vcomp1 signal
Difference between Vref3 becomes larger, so that the output electric current of voltage-controlled current source VCI increases, so that Vsaw frequency rises, further
So that driving signal frequency rises, as shown in Figure 15, circuit work frequency makes circuit gain decline to make output voltage drop
It is low, thus, it could be seen that the negative feedback by control circuit can make circuit come back to stable state.
Second situation: when output voltage is higher so that main circuit feedback signal FB perseverance is higher than voltage reference Vref1, therefore
Vcomp1 is in permanent low state, and output voltage feedback signal VFB reaches voltage reference Vref2, and PWM controls error amplifying element
102 play circuit adjustment effect, the adjustable error amplification signal Vcomp2 of output amplitude.Voltage reference Vref3's and Vcomp1
Difference is definite value, therefore the frequency of sawtooth wave Vsaw is definite value and peak value is equal to Vref2；Vcomp2 is compared rear defeated with Vsaw
Duty ratio is adjustable out, frequency and the consistent pulse signal Vpulse of sawtooth wave Vsaw, and circuit 104 further occurs through driving signal
The adjustable driving signal V of output duty cycleg_Q1And Vg_Q2.The adjustment process for illustrating circuit is as follows: when main circuit is by the external world
Influence so that output voltage increase, thus VFB signal increase, through PWM control error amplifying element 102 Vcomp2 is declined,
So that pulse signal Vpulse duty ratio declines, further such that the decline of driving signal Vg_Q1 duty ratio, Vg_Q2 duty
Than rising；Therefore switching tube S1 turn-on time reduces so that inductance L1 reduces in the energy that each switch periods are transmitted, to make
Output voltage reduces.Thus, it could be seen that the negative feedback by control circuit can make circuit come back to stable state.
Figure 18 shows the first specific embodiment of Sofe Switch High Power Factor A.C.-D.C. converter of the invention,
Middle load is half-bridge logical link control (LLC) resonant DC-DC transfer circuit；Those skilled in the art are not difficult to know, load or other
The DC-DC transfer circuit of type.
Figure 19 shows the second specific embodiment of Sofe Switch High Power Factor A.C.-D.C. converter of the invention,
Middle load is half-bridge logical link control (LLC) resonant DC-DC transfer circuit, the switching tube of the half-bridge logical link control (LLC) resonant DC-DC transfer circuit
It is multiplexed with the switching tube of Sofe Switch high-power factor correcting circuit.The half-bridge logical link control (LLC) resonant DC-DC transfer circuit further includes
Resonant inductance Lr, resonant capacitance Cr, transformer T2, output rectification circuit 201, output capacitance Co；A termination of resonant inductance Lr
The drain electrode of the source electrode and switching tube Q2 of switching tube Q1, one end of another termination resonant capacitance Cr of resonant inductance Lr, resonant capacitance
One end of another termination transformer T2 primary side winding of Cr, another termination of transformer T2 primary side winding is with reference to ground, transformer T2
Vice-side winding connect the input terminal of output rectifier 201, the output of output rectifier 201 terminates output capacitance Co；
Specific embodiments of the present invention shown in Figure 19 become due to Sofe Switch high-power factor correcting circuit and DC-DC
Circuit common switch bridge arm is changed, therefore it is substantially a kind of A.C.-D.C. converter of quasi-single-stage, relatively traditional two-level configuration
A.C.-D.C. converter component number reduce, and can be directly used PFM+PWM control circuit as shown in figure 16 or
PFM control circuit, without increasing additional control circuit.Further, with traditional boost circuit+LLC DC-DC circuit
The quasi-single-stage A.C.-D.C. converter of composition is compared, since the partial pressure effect of capacitor C1 reduces Sofe Switch High Power Factor school
The voltage gain of positive circuit, the specific embodiment of the invention shown in Figure 19 can obtain lower DC bus-bar voltage inside
(VCB), the voltage stress of switching tube is reduced, therefore can be and exchange input range, traditional boost circuit for 90V~265V
The quasi-single-stage A.C.-D.C. converter that+LLC DC-DC circuit is constituted generally can be only applied to low input occasion.
Figure 20 shows the third specific embodiment of Sofe Switch High Power Factor A.C.-D.C. converter of the invention, wherein
Load is half bridge flyback circuit.The switching tube of the half bridge flyback circuit and the switching tube of Sofe Switch high-power factor correcting circuit
Multiplexing.The half bridge flyback circuit further includes capacitance Cx, transformer T3, output rectifying tube Do, output capacitance Co；Blocking electricity
Hold the drain electrode of the source electrode and switching tube Q2 of a termination switching tube Q1 of Cx, another termination transformer T3 primary side of capacitance Cx around
The Same Name of Ends of group, for the different name termination of transformer T3 primary side winding with reference to ground, the vice-side winding different name termination output of transformer T3 is whole
The input terminal of flow tube Do, the anode of the output termination output capacitance Co of output rectifying tube Do, the negative terminal of output capacitance Co connect transformation
The Same Name of Ends of device T3 vice-side winding；
Similar, it is a kind of quasi-single-stage A.C.-D.C. converter that Figure 20, which shows specific embodiments of the present invention also, equally may be used
To obtain lower DC bus-bar voltage (VCB)。
Figure 21 shows the 4th specific embodiment of Sofe Switch High Power Factor A.C.-D.C. converter of the invention, wherein
Load is half-bridge logical link control (LLC) resonant DC-DC transfer circuit, the switching tube of switching tube and Sofe Switch high-power factor correcting circuit
Multiplexing.The specific embodiment of the invention shown in Figure 21 and Figure 19 specific embodiment only different from connection type, functionally
Essence is equivalent, therefore is no longer described in detail.
Similar, the load of specific embodiment shown in Figure 21 may be half bridge flyback circuit, constitute and tool shown in Figure 20
The substantially equivalent circuit structure of body embodiment.
Rectifying tube D1, rectifying tube D2 and continued flow tube in Sofe Switch High Power Factor A.C.-D.C. converter of the invention
D3, continued flow tube D4 can be diode, can also partly or entirely be substituted with MOSFET, to reduce on-state loss.Figure 22 is shown
Sofe Switch High Power Factor A.C.-D.C. converter rectifying tube D1, rectifying tube D2 and continued flow tube D3, continued flow tube D4 of the invention
All using a specific embodiment of MOSFET.
Specific module those skilled in the art by the invention can have more under the premise of without prejudice to its spirit
Kind embodiment, or by a variety of different combinations, form different specific embodiments, be not detailed herein.
It is no matter described above how detailed, it can also there is many ways in which the implementation present invention, it is described in the specification to be
Some specific embodiments of the present invention.It is all any equivalent transformation or modification made according to the spirit of the present invention, should all cover
Within protection scope of the present invention.
The above-mentioned detailed description of the embodiment of the present invention is not exhaustion or above-mentioned clear for limiting the present invention to
It is formal.It is above-mentioned the particular embodiment of the present invention and example are illustrated with schematic purpose while, those skilled in the art
It will appreciate that and carry out various equivalent modifications within the scope of the invention.
Description above describe the particular embodiment of the present invention and while describe anticipated optimal set mode, no matter
Above occur how being described in detail, also can be implemented in numerous ways the present invention.Foregoing circuit structure and its control mode
Details executed in details at it and can carry out considerable variation, however it is still contained in the present invention disclosed herein
In.
It should be noted that used specific term is not when illustrating certain features or scheme of the invention as described above
It should be used to indicate to redefine the term herein to limit certain certain features of the invention relevant to the term, feature
Or scheme.In short, will should not be construed to limit the invention to illustrate in term used in appended claims
Specific embodiment disclosed in book, unless above-mentioned detailed description part explicitly defines these terms.Therefore, reality of the invention
Border range not only includes the disclosed embodiments, further include be practiced or carried out under claims it is of the invention all etc.
Efficacious prescriptions case.
Claims (10)
1. a kind of Sofe Switch High Power Factor A.C.-D.C. converter, it is characterised in that: the Sofe Switch High Power Factor is handed over
Stream-DC converter includes soft switch power factor correcting circuit, wherein
The soft switch power factor correcting circuit includes: filter, rectifying tube D1, rectifying tube D2, continued flow tube D3, continued flow tube
D4, inductance L1, capacitor C1, switching tube Q1, switching tube Q2, capacitor CB；
Wherein, one end of an input termination alternating current source Vac of filter, the other end of another input terminal alternating current source Vac, filter
The anode of one output termination rectifying tube D1 of wave device and the cathode of rectifying tube D2, the output termination of filter connect flow tube
The anode of D3 and the cathode of continued flow tube D4, the cathode of rectifying tube D1 connect drain electrode and the electricity of the cathode, switching tube Q1 of flow tube D3
Hold the anode of CB, the anode of rectifying tube D2 connects the anode of flow tube D4, the source electrode of switching tube Q2, the negative terminal of capacitor CB and reference
Ground, the anode of continued flow tube D3 connect one end of inductance L1, one end of another termination capacitor C1 of inductance L1, another termination of capacitor C1
The grid of the drain electrode of the source electrode and switching tube Q2 of switching tube Q1, switching tube Q1 and switching tube Q2 receive control circuit output respectively
Driving signal.
2. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 1, it is characterised in that:
It further include a load, the load connects between the anode and negative terminal of capacitor CB, loads as nothings such as resistance, LED, batteries
Source load or DC-DC transfer circuit.
3. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 1, it is characterised in that:
It further include a load, it is described to load the negative of the switch bridge arm midpoint and capacitor CB for connecing switching tube Q1 and switching tube Q2 composition
Between end, load as resistance or DC-DC transfer circuit.
4. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 1, it is characterised in that:
It further include a load, the load connects the switch bridge arm midpoint that switching tube Q1 and switching tube Q2 is constituted and constitutes capacitor CB
Two series capacitances midpoint between, load as resistance or DC-DC transfer circuit.
5. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 3, it is characterised in that:
The load is half-bridge logical link control (LLC) resonant DC-DC transfer circuit；The half-bridge logical link control (LLC) resonant DC-DC transfer circuit
Switching tube and the switching tube of Sofe Switch high-power factor correcting circuit be multiplexed, half-bridge logical link control (LLC) resonant DC-dc conversion electricity
Road further includes resonant inductance Lr, resonant capacitance Cr, transformer T2, output rectification circuit, output capacitance Co；The one of resonant inductance Lr
Terminate the drain electrode of the source electrode and switching tube Q2 of switching tube Q1, one end of another termination resonant capacitance Cr of resonant inductance Lr, resonance
One end of another termination transformer T2 primary side winding of capacitor Cr, another termination of transformer T2 primary side winding is with reference to ground, transformation
The vice-side winding of device T2 connects the input terminal of output rectifier, and the output of output rectifier terminates output capacitance Co.
6. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 3, it is characterised in that:
The load is half bridge flyback circuit；Switching tube and Sofe Switch the high power factor correction electricity of the half bridge flyback circuit
The switching tube on road is multiplexed；The half bridge flyback circuit further includes capacitance Cx, transformer T3, output rectifying tube Do, output electricity
Hold Co；The drain electrode of the source electrode and switching tube Q2 of a termination switching tube Q1 of capacitance Cx, another termination of capacitance Cx become
The Same Name of Ends of depressor T3 primary side winding, for the different name termination of transformer T3 primary side winding with reference to ground, the vice-side winding of transformer T3 is different
The input terminal of name termination output rectifier Do, the anode of the output termination output capacitance Co of output rectifier Do, output capacitance Co
Negative terminal connect the Same Name of Ends of transformer T3 vice-side winding.
7. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 1, it is characterised in that:
Rectifying tube D1, rectifying tube D2 and continued flow tube D3, continued flow tube in the Sofe Switch High Power Factor A.C.-D.C. converter
D4 is diode.
8. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 1, it is characterised in that:
Rectifying tube D1, rectifying tube D2 and continued flow tube D3, continued flow tube in the Sofe Switch High Power Factor A.C.-D.C. converter
D4 is partly or entirely MOSFET.
9. a kind of Sofe Switch High Power Factor A.C.-D.C. converter according to claim 1, it is characterised in that:
The Sofe Switch High Power Factor A.C.-D.C. converter further includes control circuit, the control circuit be PFM control,
PWM control or PFM+PWM control.
10. a kind of Sofe Switch High Power Factor A.C.-D.C. converter as described in power 1 or 9, it is characterised in that:
The control circuit includes PFM control error amplifying element, saw-tooth wave generating circuit, PWM control error amplifying element, ratio
Circuit occurs compared with device Com2, driving signal；
Further, the PFM control error amplifying element includes resistance R1, the first compensation network, the first amplifier OP1 and voltage base
Quasi- Vref1, the resistance R1 mono- terminate the end FB, receive the output voltage or current signal of main circuit feedback, resistance R1's is another
One end of the first compensation network and the negative input end of amplifier OP1 are terminated, the positive input termination voltage reference Vref1's of amplifier OP1
Anode, the negative terminal of voltage reference Vref1 connect with reference to ground, the output end of the first amplifier OP1 of output termination of the first compensation network；
PFM control error amplifying element is compared the signal difference between FB received signal and voltage reference Vref1, amplifies,
Generate error amplification signal Vcomp1；
The saw-tooth wave generating circuit includes voltage reference Vref2, voltage-controlled current source VCI, capacitor C1, switch S1, voltage reference
Vref4, comparator Com1, the output end of the negative input termination amplifier OP1 of voltage-controlled current source VCI, voltage-controlled current source VCI's is just defeated
Enter the anode of termination voltage reference Vref3, the negative terminal of voltage reference Vref3 connects with reference to ground, an output of voltage-controlled current source VCI
Termination connects the negative input end of one end of capacitor C1, one end of switch S1 and comparator Com1 with reference to ground, another output, than
The control terminal of the output termination switch S1 of one end comparator Com1 of positive input termination voltage reference Vref4 compared with device Com1, is opened
Close the other end ground connection of S1；Saw-tooth wave generating circuit based on the received error amplification signal Vcomp1 generate changeable frequency sawtooth
Wave signal Vsaw；
The PWM control error amplifying element includes resistance R2, the second compensation network, amplifier OP2 and voltage reference Vref2 and limit
Width device LIMV, the resistance R2 mono- terminate the end VFB, receive the output voltage signal of main circuit feedback, another termination of resistance R2
One end of second compensation network and the negative input end of amplifier OP2, the anode of the positive input termination voltage reference Vref2 of amplifier OP2,
The negative terminal of voltage reference Vref2 connects with reference to ground, and the output end of the output termination amplifier OP2 of the second compensation network, amplifier OP2's is defeated
The input terminal of limiter LIMV2, the output end output error amplified signal Vcomp2 of limiter LIMV2 are terminated out；PWM control misses
Poor amplifying element is compared the signal difference between VFB received signal and voltage reference Vref1, amplifies through limiter
LIMV limits output error amplified signal Vcomp2 after amplitude；
The output end of the negative input termination saw-tooth wave generating circuit of comparator Com2, receives sawtooth signal Vsaw, comparator
The output end of the positive input termination PWM control error amplifying element of Com2, receives the error amplification signal Vcomp2 of its output；Than
Received sawtooth signal Vsaw and error amplification signal Vcomp2 are compared compared with device Com2, output pulse signal
Vpulse；
It includes phase inverter INV, the first delay circuit, the second delay circuit and door AND1 and door that circuit, which occurs, for the driving signal
AND2 and driving circuit 1041；The input of the phase inverter INV terminates the input terminal of the second delay circuit and with door AND2's
One input terminal, return pulse signal Vpulse, phase inverter INV output termination the first delay circuit input terminal and with door
An input terminal of AND1, an input terminal with the output termination driving circuit of door AND1, two output ends of driving circuit
Output drive signal V respectivelyg_Q1And Vg_Q2；First delay circuit and the second delay circuit generate delay Td1 and Td2 respectively,
For generating driving signal Vg_Q1And Vg_Q2Between dead time, the driving circuit is for enhancing driving capability and driving
Signal bootstrapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239349.5A CN109217699B (en) | 2018-10-23 | 2018-10-23 | Soft-switching high-power-factor alternating current-direct current converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239349.5A CN109217699B (en) | 2018-10-23 | 2018-10-23 | Soft-switching high-power-factor alternating current-direct current converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109217699A true CN109217699A (en) | 2019-01-15 |
| CN109217699B CN109217699B (en) | 2024-02-02 |
Family
ID=64979852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811239349.5A Active CN109217699B (en) | 2018-10-23 | 2018-10-23 | Soft-switching high-power-factor alternating current-direct current converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109217699B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115566907A (en) * | 2022-11-11 | 2023-01-03 | 四川大学 | Improved VMC LLC resonant PFC converter control system and design method thereof |
| CN115603563A (en) * | 2022-12-12 | 2023-01-13 | 惠州市乐亿通科技有限公司（Cn） | Power factor correction circuit and power supply device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064178A (en) * | 1991-02-08 | 1992-09-02 | 通用电气公司 | High power factor direct current power supply |
| US20070081368A1 (en) * | 2004-06-09 | 2007-04-12 | Rong-Jong Wai | Current Source Wave Voltage Inverter Voltage-Clamping and Soft-Switching Techniques, and Fuel Cell System using the same |
| CN101340143A (en) * | 2007-11-30 | 2009-01-07 | 马丽娟 | Switch converter of high power factor |
| CN102035408A (en) * | 2009-09-29 | 2011-04-27 | 三垦电气株式会社 | Resonant type converter apparatus |
| CN108471232A (en) * | 2018-04-24 | 2018-08-31 | 上海推拓科技有限公司 | Double rectifier bridge formula single stage power factor correction power circuit |
| CN209593312U (en) * | 2018-10-23 | 2019-11-05 | 杭州电子科技大学 | Sofe Switch High Power Factor A.C.-D.C. converter |
-
2018
- 2018-10-23 CN CN201811239349.5A patent/CN109217699B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064178A (en) * | 1991-02-08 | 1992-09-02 | 通用电气公司 | High power factor direct current power supply |
| US20070081368A1 (en) * | 2004-06-09 | 2007-04-12 | Rong-Jong Wai | Current Source Wave Voltage Inverter Voltage-Clamping and Soft-Switching Techniques, and Fuel Cell System using the same |
| CN101340143A (en) * | 2007-11-30 | 2009-01-07 | 马丽娟 | Switch converter of high power factor |
| CN102035408A (en) * | 2009-09-29 | 2011-04-27 | 三垦电气株式会社 | Resonant type converter apparatus |
| CN108471232A (en) * | 2018-04-24 | 2018-08-31 | 上海推拓科技有限公司 | Double rectifier bridge formula single stage power factor correction power circuit |
| CN209593312U (en) * | 2018-10-23 | 2019-11-05 | 杭州电子科技大学 | Sofe Switch High Power Factor A.C.-D.C. converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115566907A (en) * | 2022-11-11 | 2023-01-03 | 四川大学 | Improved VMC LLC resonant PFC converter control system and design method thereof |
| CN115603563A (en) * | 2022-12-12 | 2023-01-13 | 惠州市乐亿通科技有限公司（Cn） | Power factor correction circuit and power supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109217699B (en) | 2024-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | A PWM LLC type resonant converter adapted to wide output range in PEV charging applications | |
| Cheng et al. | A novel single-stage high-power-factor AC/DC converter featuring high circuit efficiency | |
| Choi et al. | Bridgeless boost rectifier with low conduction losses and reduced diode reverse-recovery problems | |
| Lai et al. | A single-stage AC/DC converter based on zero voltage switching LLC resonant topology | |
| CN108521223B (en) | Switching power circuit | |
| CN102946196B (en) | High power factor constant current driving circuit and constant-current device | |
| CN108964474A (en) | A kind of three mode rectification topologies based on LLC resonant converter | |
| CN108235509B (en) | A kind of single-stage LED drive circuit of integrated decompression Cuk and LLC circuit | |
| CN110034674A (en) | A kind of two-way three-phase DC-DC converter of high-gain and control method | |
| Lin et al. | Soft-switching converter with two series half-bridge legs to reduce voltage stress of active switches | |
| CN108183603B (en) | A kind of single-stage is without bridge Sofe Switch resonance isolated form circuit of power factor correction | |
| De Souza et al. | A new ZVS semiresonant high power factor rectifier with reduced conduction losses | |
| CN211656002U (en) | Resonance bridgeless boost power factor correction AC-DC converter | |
| Chiu et al. | A high-efficiency soft-switched AC/DC converter with current-doubler synchronous rectification | |
| CN109217699A (en) | A kind of Sofe Switch High Power Factor A.C.-D.C. converter | |
| CN109546851A (en) | Sofe Switch High Power Factor alternating continuous-current commutating machine | |
| CN110266182A (en) | A kind of adaptive following controller of PFC output voltage | |
| CN209593312U (en) | Sofe Switch High Power Factor A.C.-D.C. converter | |
| CN106787756B (en) | A kind of CL-FT-CL resonance DC converter | |
| CN102983738A (en) | Primary voltage buffer type full-bridge single-stage power-factor corrector of transformer | |
| Kwon et al. | Single-stage half-bridge converter using a coupled-inductor | |
| Zareie et al. | A power factor correction LED driver with direct power transfer feature | |
| CN110429821A (en) | A kind of single-phase isolated form AC/DC converter of the no electrolytic capacitor single stage type of integrated power factor correction function | |
| Pandhi et al. | An Approach for Power Factor Correction of Single-Phase Single-Stage Three-Level AC-DC Converter with Phase Shift Modulation | |
| Li et al. | An integrated AC-DC converter with isolation and reduced number of power components |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |