CN104779785A - Control circuit module of power factor correction converter - Google Patents
Control circuit module of power factor correction converter Download PDFInfo
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- CN104779785A CN104779785A CN201410017126.XA CN201410017126A CN104779785A CN 104779785 A CN104779785 A CN 104779785A CN 201410017126 A CN201410017126 A CN 201410017126A CN 104779785 A CN104779785 A CN 104779785A
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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
- 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
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The present invention provides a control circuit module of a power factor correction converter, which is mainly in a hybrid structure of a BCM and a CCM. When the control circuit module is in full load, a PFC inductor current can be operated in the CCM so as to avoid over-great peak current and retain the advantage of low harmonic distortion. When the control circuit module is in light load, the PFC inductor current is operated in the BCM at positions of wave troughs on two sides, so as to lower switching loss and improve overall efficiency; and when the PFC inductor current approaches to the wave peak, the PFC inductor current is operated in the CCM, thereby reducing conduction loss and improving component stress-resistance.
Description
Technical field
The invention relates to a kind of power factor corrector, and relate to the power factor corrector of a kind of boundary conduction mode and continuous conduction mode mixed type framework especially.
Background technology
Along with progress and the expanding economy of science and technology, the demand of the mankind to switch type converter grows with each passing day.In recent years, due to the significantly progress of power electronic technology, most future development also tending to compactization electronic equipment day, the power supply changeover device of its inside also need design towards compact trend, therefore, have that volume is little, lightweight, just to replace conventional linear be gradually transducer to the switch type power converter of efficiency advantages of higher, becomes the main flow of power supply changeover device.Switch type converter is except the short and small advantage such as frivolous, and a nearlyer step improves converter efficiency and quality.
Power factor corrector (power factor corrector, PFC) common operator scheme has continuous conduction mode (continuous conduction mode, CCM), DCM (discontinuous conductionmode, DCM), with boundary conduction mode (boundary conduction mode, BCM) etc., its application occasion applicable separately is all had.
Generally speaking, when power factor corrector application its inductive current upper based on boost type is positioned at both sides trough, use boundary conduction mode because there is no the problem of reverse recovery time of diode, and power switch switching frequency is lower, so switch cost is less.But if use boundary conduction mode when inductive current is positioned at peak value, the electric current mainly because of peak value is comparatively large, easily causes the loss of conduction and associated component need bear the shortcoming of higher stress.
Therefore, inventor, in view of the disappearance of known techniques, for solving known problem, being the idea thought and improve, proposing a technology solved.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of control circuit module of power factor converter for correcting, and the mixed type framework being utilized as BCM and CCM reduces switch cost raising whole efficiency to reach.
For reaching above-mentioned or other object, the present invention proposes a kind of control circuit module of power factor converter for correcting, this control circuit module and an Inductive component couple, and this Inductive component and an Input voltage terminal and an output voltage terminal couple, this control circuit module includes a switch element, and itself and this Inductive component couples.One judging unit, itself and this output voltage terminal couples, and uses one second power signal judging this output voltage terminal, and by this obtained second power signal to export a corresponding boundary conduction mode signal or a continuous conduction mode signal.One comparing unit, itself and this Inductive component and this Input voltage terminal couple, receive an inductance signal of this Inductive component generation and one first power signal of this Input voltage terminal by this, and make this comparing unit to determine generation one conducting signal or an open circuit signal according to this inductance signal or this first power signal.One processing unit, itself and this judging unit and this comparing unit couple, and by receiving signal that this judging unit and this comparing unit produce to produce a control signal to this switch element.Wherein, when this processing unit receives this continuous conduction mode signal, now this processing unit receives this conducting signal or this open circuit signal produced by this first power signal of this Input voltage terminal, and then make this processing unit produce this control signal, and this processing unit is when receiving this boundary conduction mode signal, now this processing unit receives this conducting signal and produced by this first power signal, this inductance signal that this open circuit signal is produced by this Inductive component produced, and also makes this processing unit produce this control signal.
In sum, the mixed type framework being utilized as BCM and CCM by the present invention reduces to reach the object that switch cost improves whole efficiency.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of present pre-ferred embodiments.
Fig. 2 is the inductive current schematic diagram of the preferred embodiment of the present invention.
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below.
Refer to shown in Fig. 1 and Fig. 2, it is circuit diagram and the inductive current schematic diagram of present pre-ferred embodiments.The present invention proposes a kind of control circuit module (1) of power factor converter for correcting, this control circuit module (1) and an Inductive component (2) couple, and this Inductive component (2) couples with an Input voltage terminal (3) and an output voltage terminal (4), this control circuit module (1) includes a switch element (11), a judging unit (12), a comparing unit (13) and a processing unit (14).
This switch element (11) can couple with this Inductive component (2), and this switch element (11) can be the assembly of transistor component or other equivalence.
This judging unit (12) can couple with this output voltage terminal (4), this judging unit (12) can receive one second power signal exported by this output voltage terminal (4), and according to this second power signal to determine that the corresponding signal exported is a boundary conduction mode signal or a continuous conduction mode signal.If when the load current that wherein this second power signal is input into this judging unit (12) is less than default value lower than default value and hysteresis widths, this judging unit (12) is by this boundary conduction mode signal of output; If the load current that this this second power signal is input into this judging unit (12) higher than during default value or load current lower than default value, hysteresis widths is greater than default value time, this judging unit (12) is by this continuous conduction mode signal of output.
This comparing unit (13) can be the assembly of analog comparator or other equivalence, it can couple with this Inductive component (2) and this Input voltage terminal (3), this comparing unit (13) can receive one first power signal of an inductance signal that this Inductive component (2) produces and this Input voltage terminal (3) by this, and makes this comparing unit (13) to determine generation one conducting signal or an open circuit signal according to this inductance signal or this first power signal.If when wherein the load current of this first power signal is positioned on B-H loop, this comparing unit (13) will be made to produce this open circuit signal, if the load current of this first power signal is positioned on lower B-H loop or when the load current of this inductance signal is positioned at trough, then this comparing unit (13) produces this conducting signal.
This processing unit (14) can couple with this judging unit (12) and this comparing unit (13), and the signal that this judging unit (12) and this comparing unit (13) produce can be received, and produce one by this and control signal to this switch element (11).
The aforementioned annexation that each correlation unit is first described, below then will describe its operation.First, if when this judging unit (12) detects this second power signal higher than the load current Quasi position set, this judging unit (12) by this continuous conduction mode signal of output to this processing unit (14), or when this judging unit (12) detects this second power signal lower than the load current Quasi position set, and detect side region place this on the width of B-H loop and lower B-H loop be greater than default value, this judging unit (12) also by this continuous conduction mode signal of output to this processing unit (14).But when this judging unit (12) detects this second power signal lower than the load current Quasi position set, and detect side region place this on the width of B-H loop and lower B-H loop be less than default value, this judging unit (12) then by this boundary conduction mode signal of output to this processing unit (14).
When supposing that this judging unit (12) exports this continuous conduction mode signal to this processing unit (14), and this comparing unit (13) can produce this conducting signal or this open circuit signal in this processing unit (14), this processing unit (14) is made to export corresponding control signal to this switch element (11).Wherein, if when this processing unit (14) receives as this continuous conduction mode signal, this comparing unit (13) produces this open circuit signal, and produce conducting signal when the load current of this first power signal is positioned on lower B-H loop.Relative, when supposing that this judging unit (12) exports this boundary conduction mode signal to this processing unit (14), and this comparing unit (13) also can produce this conducting signal or this open circuit signal in this processing unit (14), this processing unit (14) is made to export corresponding control signal to this switch element (11).Wherein, if when this processing unit (14) receives as this boundary conduction mode signal, this comparing unit (13) is also produce this open circuit signal when the load current of this first power signal is positioned on B-H loop, and the generation of this conducting signal is then when the load current of this inductance signal is positioned at trough.
This control circuit module (1) further can have an analog/digital converter (15) and one pulse wave width modulation device (16) (PWM), this analog/digital converter (15) can between this judging unit (12) and this output voltage terminal (4), mainly this second power signal produced by this output voltage terminal (4) can be converted to digital form from analog form, this judging unit (12) just can detect this second power signal.This pulse wave width modulation device (16) is then between this processing unit (14) and this switch element (11), and it mainly converts by digital form this control signal that this processing unit (14) produces to pulse wave form.
Known the present invention of explanation of above, when fully loaded situation, under this control circuit module (1) can be allowed to operate in continuous conduction mode, to avoid peak current excessive, and can retain the advantage of its low humorous distortion; Otherwise, when the situation of underloading, the inductive current of this control circuit module (1) operates under boundary conduction mode when can be allowed to be positioned at both sides wave trough position, overall efficiency is improved to reduce the loss of switching, and when away from trough near crest time, this control circuit module (1) then operates under continuous conduction mode, can improve the loss of conduction and the problem of assembly proof stress by this.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention, anyly have the knack of this those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is worked as is that the scope that claim defines is as the criterion.
Claims (5)
1. a control circuit module for power factor converter for correcting, this control circuit module and an Inductive component couple, and this Inductive component and an Input voltage terminal and an output voltage terminal couple, and it is characterized in that this control circuit module comprises:
One switch element, itself and this Inductive component couples;
One judging unit, itself and this output voltage terminal couples, and uses one second power signal judging this output voltage terminal, and by this obtained second power signal to export a corresponding boundary conduction mode signal or a continuous conduction mode signal;
One comparing unit, itself and this Inductive component and this Input voltage terminal couple, receive an inductance signal of this Inductive component generation and one first power signal of this Input voltage terminal by this, and make this comparing unit to determine generation one conducting signal or an open circuit signal according to this inductance signal or this first power signal; And
One processing unit, itself and this judging unit and this comparing unit couple, and by receiving signal that this judging unit and this comparing unit produce to produce a control signal to this switch element;
Wherein, when this processing unit receives this continuous conduction mode signal, now this processing unit receives this conducting signal or this open circuit signal produced by this first power signal of this Input voltage terminal, and then make this processing unit produce this control signal, and this processing unit is when receiving this boundary conduction mode signal, now this processing unit receives this conducting signal and produced by this first power signal, this inductance signal that this open circuit signal is produced by this Inductive component produced, and also makes this processing unit produce this control signal.
2. the control circuit module of power factor converter for correcting as claimed in claim 1, it is characterized in that this control circuit module has an analog/digital converter further, this analog/digital converter is between this output voltage terminal and this judging unit.
3. the control circuit module of power factor converter for correcting as claimed in claim 2, it is characterized in that this control circuit module has a pulse wave width modulation device (PWM) further, this pulse wave width modulation device is between this processing unit and this switch element.
4. the control circuit module of power factor converter for correcting as claimed in claim 3, is characterized in that this switch element is transistor component.
5. the control circuit module of power factor converter for correcting as claimed in claim 4, is characterized in that this comparing unit is analog comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017126.XA CN104779785B (en) | 2014-01-11 | 2014-01-11 | The control circuit module of power factor converter for correcting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017126.XA CN104779785B (en) | 2014-01-11 | 2014-01-11 | The control circuit module of power factor converter for correcting |
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| CN104779785A true CN104779785A (en) | 2015-07-15 |
| CN104779785B CN104779785B (en) | 2019-02-26 |
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| CN201410017126.XA Active CN104779785B (en) | 2014-01-11 | 2014-01-11 | The control circuit module of power factor converter for correcting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019129311A1 (en) * | 2017-12-29 | 2019-07-04 | 沃尔缇夫能源***公司 | Control method, apparatus, device, and medium for power factor correction pfc circuit |
| CN109995230A (en) * | 2017-12-29 | 2019-07-09 | 沃尔缇夫能源***公司 | Control method, device, equipment and the medium of PFC pfc circuit |
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| CN2521821Y (en) * | 2001-12-30 | 2002-11-20 | 亚源科技股份有限公司 | Power-factor modifying regulator |
| US7295452B1 (en) * | 2006-09-07 | 2007-11-13 | Green Mark Technology Inc. | Active power factor correction circuit and control method thereof |
| CN101860194A (en) * | 2010-05-14 | 2010-10-13 | 北方工业大学 | Implementation method and device of multi-mode power factor corrector |
| CN102195292A (en) * | 2010-03-12 | 2011-09-21 | 联咏科技股份有限公司 | Power factor correcting device |
| CN203206106U (en) * | 2013-03-21 | 2013-09-18 | 成都芯源***有限公司 | Power factor correction circuit and control circuit thereof |
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2014
- 2014-01-11 CN CN201410017126.XA patent/CN104779785B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2521821Y (en) * | 2001-12-30 | 2002-11-20 | 亚源科技股份有限公司 | Power-factor modifying regulator |
| US7295452B1 (en) * | 2006-09-07 | 2007-11-13 | Green Mark Technology Inc. | Active power factor correction circuit and control method thereof |
| CN102195292A (en) * | 2010-03-12 | 2011-09-21 | 联咏科技股份有限公司 | Power factor correcting device |
| CN101860194A (en) * | 2010-05-14 | 2010-10-13 | 北方工业大学 | Implementation method and device of multi-mode power factor corrector |
| CN203206106U (en) * | 2013-03-21 | 2013-09-18 | 成都芯源***有限公司 | Power factor correction circuit and control circuit thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019129311A1 (en) * | 2017-12-29 | 2019-07-04 | 沃尔缇夫能源***公司 | Control method, apparatus, device, and medium for power factor correction pfc circuit |
| CN109995230A (en) * | 2017-12-29 | 2019-07-09 | 沃尔缇夫能源***公司 | Control method, device, equipment and the medium of PFC pfc circuit |
| US11095208B2 (en) | 2017-12-29 | 2021-08-17 | Vertiv Corporation | Control method, apparatus, device, and medium for power factor correction PFC circuit |
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| CN104779785B (en) | 2019-02-26 |
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Effective date of registration: 20191118 Address after: Longgang District of Shenzhen City, Guangdong province 518115 Henggang Street Community Dakang Feng Wei Street No. 1 Building 1 to 5 Patentee after: Asia source technology (Shenzhen) Co., Ltd. Address before: 518115 No.1 and No.2 factory building (yalongyuan), No.10, Ma Liu Road, Baoan Ma Liu village, Henggang Town, Longgang District, Shenzhen City, Guangdong Province Patentee before: Yarongyuan Science and Technology (Shenzhen) Co., Ltd. |
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