CN106230263A - A kind of positive activation type ZVT supply convertor - Google Patents
A kind of positive activation type ZVT supply convertor Download PDFInfo
- Publication number
- CN106230263A CN106230263A CN201610601216.2A CN201610601216A CN106230263A CN 106230263 A CN106230263 A CN 106230263A CN 201610601216 A CN201610601216 A CN 201610601216A CN 106230263 A CN106230263 A CN 106230263A
- Authority
- CN
- China
- Prior art keywords
- resistance
- zvt
- supply convertor
- switching tube
- activation type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
-
- 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
A kind of positive activation type ZVT supply convertor of the present invention, described supply convertor includes: switching tube Q1；The transformator T1 being connected with the base stage of switching tube Q1；The PFM controller being connected with the emitter stage of switching tube Q1；Forward commutation diode D1, sustained diode 2, commutation diode D3, resonant capacitance Cr, energy storage inductor L1, filter capacitor C1 and the filter capacitor C2 being connected with described transformator T1；The resistance R1 that is connected with described PFM controller, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6；The photoelectrical coupler OP1, input power E+ end and the input power E end that are connected with described PFM controller and output VO1+ end output VO1 end.The present invention solves the switching tube in forward power changer and diode and big problem is lost because of what hard switching brought, reduces switching loss, improves efficiency.
Description
Technical field
The present invention relates to the control technical field of electronic circuit, particularly relate to a kind of positive activation type ZVT power supply and become
Parallel operation.
Background technology
At present, in existing single-ended forward type supply convertor, existing single-ended forward type power supply as shown in Figure 1 becomes
In the basic circuit of parallel operation, the switching tube Q2 of primary side and commutation diode D5, D6 of primary side is firmly to open and firmly turn off, and opens
Closing loss big, efficiency is low；There is leakage inductance in the transformator in forward power changer, the switching tube of primary side and primary side whole
The highest backward voltage spike can be produced at the two ends of switching tube and diode, it is possible to exceed switching tube when stream diode turns off
With the pressure of diode and make switching tube and diode damage, the voltage waveform at switching tube two ends is as it is shown in figure 5, backward voltage width
Being worth higher, fragile switching tube Q2, therefore, it is necessary to take steps to suppression；Transformator in forward power changer is
Unidirectional excitation, before second switch periods starts, the necessary demagnetization of the magnetic core of transformator, make magnetic core reset, forward power becomes
Parallel operation could reliably working, and secondary windings NS reverse current of inducting cannot circulate because of the reverse-biased of forward commutation diode D5,
The magnetic core of transformator T2 can not demagnetization；The demagnetization mode that must use other carrys out demagnetization.
In forward power changer, in order to improve the hard switching characteristic of power switch, typically can increase auxiliary switch
And control circuit, although power switch can realize Sofe Switch, but circuit is complicated, and cost is high；In order to reduce opening of primary side
The backward voltage spike produced at the two ends of switching tube and diode when closing the commutation diode shutoff of pipe and primary side, typically adopts
With double tube positive exciting formula circuit, active clamp positive activation type circuit, the circuit such as RCD clamper or clamper winding clamper reduces backward voltage
Spike, these several circuit or control circuit are complicated, and device is many, and cost is high, or to the inhibition of backward voltage spike not
Good, power attenuation is big simultaneously, makes efficiency reduce.
Backward voltage peak absorbing circuit and the soft switch circuit of several forward power changers in sum are all deposited
In deficiency, therefore, it is necessary to invent other circuit to overcome above deficiency.
Summary of the invention
It is an object of the invention to: solve the switching tube in forward power changer and damage that diode brings because of hard switching
Consume big problem, reduce switching loss, improve efficiency；Solve magnetic core of transformer demagnetization in forward power changer to reset
Problem, make the forward power changer can reliable and stable working long hours；Reduce the switching tube of primary side and primary side
Switching tube and the backward voltage spike at diode two ends when commutation diode turns off so that forward power transducer reliability carries
Height, will not make again the circuit of forward power changer become more sophisticated simultaneously, make cost reduce.
A kind of positive activation type ZVT supply convertor, described supply convertor includes:
Switching tube Q1；
The transformator T1 being connected with the drain electrode of switching tube Q1；
The resistance R2 being connected with the source electrode of switching tube Q1 and resistance R4；
The resistance R3 being connected with the grid of switching tube Q1；
The PFM controller being connected with described resistance R2 and resistance R3 and resistance R3；
The forward commutation diode D1 that is connected with described transformator T1, sustained diode 2, resonant capacitance Cr, energy storage inductor L1,
Filter capacitor C1, input power E+ end and output VO1-end；
Resistance R1, resistance R5, resistance R6, commutation diode D3, energy storage inductor L1 and the input electricity being connected with described PFM controller
Source E-end；
The photoelectrical coupler OP1 being connected with described PFM controller；
The output VO1+ end being connected with described energy storage inductor L1 and filter capacitor C1.
Wherein in an embodiment, described PFM controller at least includes earth terminal, switching pulse outfan, switch
Current detecting end, test side, resonance the lowest point, power end.
Wherein in an embodiment, described PFM controller can also include exporting voltage regulation signal feed back input 6 end.
Wherein in an embodiment, described transformator T1 at least includes armature winding NP and secondary windings NS.
Wherein in an embodiment, described energy storage inductor L1 includes energy storage winding LP and demagnetization detection winding LS.
Wherein in an embodiment, described PFM controller is that an ON time is close to the secured adjusted turn-off time
The PFM controller of variable ratio frequency changer shaping modes.
Wherein in an embodiment, the forward rectification two of the primary side of described positive activation type ZVT supply convertor
Pipe two ends, pole parallel resonance electric capacity, the fly-wheel diode that resonant capacitance and transformer secondary output winding inductance are concatenated forms resonance and returns
Road and resonance, the backward voltage of inducting of secondary windings makes magnetic core magnetic reversal and demagnetization.
Wherein in an embodiment, the winding of the energy storage inductor of the primary side of positive activation type ZVT supply convertor
Coupling demagnetization detection winding, is just after the contrary rectified filtering of voltage of the winding voltage with energy storage inductor of demagnetization detection winding
The PFM controller swashing formula ZVT supply convertor is powered, the most also by degaussing process after electric resistance partial pressure blood pressure lowering
At the bottom of ring trough signal supply PFM controller resonance the lowest point detection input, make switching tube can at ring ripple Valley-Switching,
It is open-minded that switching tube belongs to no-voltage.
Beneficial effect:
A kind of positive activation type ZVT supply convertor, described supply convertor includes: switching tube Q1；Base with switching tube Q1
The transformator T1 that pole connects；The PFM controller being connected with the emitter stage of switching tube Q1；Whole with the forward that described transformator T1 is connected
Stream diode D1, sustained diode 2, commutation diode D3, resonant capacitance Cr, energy storage inductor L1, filter capacitor C1 and filtered electrical
Hold C2；The resistance R1 that is connected with described PFM controller, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6；With described PFM
Photoelectrical coupler OP1, input power E+ end and input power E-end and output VO1+ end that controller connects export VO1-end.
The present invention solves the switching tube in forward power changer and diode and big problem is lost because of what hard switching brought, reduces
Switching loss, improves efficiency；Solve the problem that in forward power changer, magnetic core of transformer demagnetization resets, make positive activation type
Supply convertor can reliable and stable working long hours；When the commutation diode of the switching tube and primary side that reduce primary side turns off
The backward voltage spike at switching tube and diode two ends so that forward power transducer reliability improves, will not make again simultaneously
The circuit of forward power changer becomes more sophisticated, and makes cost reduce.
Accompanying drawing explanation
Fig. 1 is the basic circuit diagram of existing single-ended forward type supply convertor；
Fig. 2 is that the one of positive activation type ZVT supply convertor of the present invention is embodied as circuit diagram；
Fig. 3 is that the another kind of positive activation type ZVT supply convertor of the present invention is embodied as circuit diagram；
Fig. 4 is that the third of positive activation type ZVT supply convertor of the present invention is embodied as circuit diagram；
Fig. 5 is the voltage waveform at the switching tube two ends of existing single-ended forward type supply convertor；
Fig. 6 is the voltage waveform at the switching tube two ends of positive activation type ZVT supply convertor of the present invention.
Detailed description of the invention
Understand for the ease of those skilled in the art, the technical side to the present invention below in conjunction with specific embodiment and accompanying drawing
Case is described in further detail.
It is disclosed detailed example embodiment.Concrete structure disclosed herein and function detail are only used to description and show
The purpose of model embodiment, can realize example embodiment in many alternative forms, and should not regarded as and be only limitted at this
The example embodiment illustrated.
It should be appreciated, however, that be not limited to disclosed particular exemplary embodiment, but on the contrary, example embodiment will
Cover all modifications, equivalent and the alternative fallen within the scope of the disclosure.Throughout the description of accompanying drawing, similar label relates to
Similar element.
Refer to Fig. 1-Fig. 6, a kind of positive activation type ZVT supply convertor, described supply convertor includes:
Switching tube Q1；
The transformator T1 being connected with the drain electrode of switching tube Q1；
The resistance R2 being connected with the source electrode of switching tube Q1 and resistance R4；
The resistance R3 being connected with the grid of switching tube Q1；
The PFM controller being connected with described resistance R2 and resistance R3 and resistance R3；
The forward commutation diode D1 that is connected with described transformator T1, sustained diode 2, resonant capacitance Cr, energy storage inductor L1,
Filter capacitor C1, input power E+ end and output VO1-end；
Resistance R1, resistance R5, resistance R6, commutation diode D3, energy storage inductor L1 and the input electricity being connected with described PFM controller
Source E-end；
The photoelectrical coupler OP1 being connected with described PFM controller；
The output VO1+ end being connected with described energy storage inductor L1 and filter capacitor C1.
Wherein in an embodiment, described PFM controller at least includes earth terminal, switching pulse outfan, switch
Current detecting end, test side, resonance the lowest point, power end.
Wherein in an embodiment, described PFM controller can also include exporting voltage regulation signal feedback input end.
Wherein in an embodiment, described transformator T1 at least includes armature winding NP and secondary windings NS.
Wherein in an embodiment, described energy storage inductor L1 includes energy storage winding LP and demagnetization detection winding LS.
Wherein in an embodiment, described PFM controller is that an ON time is close to the secured adjusted turn-off time
The PFM controller of variable ratio frequency changer shaping modes.
Wherein in an embodiment, the forward rectification two of the primary side of described positive activation type ZVT supply convertor
Pipe two ends, pole parallel resonance electric capacity, the fly-wheel diode that resonant capacitance and transformer secondary output winding inductance are concatenated forms resonance and returns
Road and resonance, the backward voltage of inducting of secondary windings makes magnetic core magnetic reversal and demagnetization.
Wherein in an embodiment, the winding of the energy storage inductor of the primary side of positive activation type ZVT supply convertor
Coupling demagnetization detection winding, is just after the contrary rectified filtering of voltage of the winding voltage with energy storage inductor of demagnetization detection winding
The PFM controller swashing formula ZVT supply convertor is powered, the most also by degaussing process after electric resistance partial pressure blood pressure lowering
At the bottom of ring trough signal supply PFM controller resonance the lowest point detection input, make switching tube can at ring ripple Valley-Switching,
It is open-minded that switching tube belongs to no-voltage.
In order to solve technical problem as described in the background section, the one of the present invention be embodied as circuit as in figure 2 it is shown,
A kind of positive activation type ZVT supply convertor, at least includes switching tube Q1, transformator T1, PFM controller, forward rectification two
Pole pipe D1, sustained diode 2, commutation diode D3, resonant capacitance Cr, energy storage inductor L1, filter capacitor C1, filter capacitor C2,
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, photoelectrical coupler OP1, input power E+ end and input electricity
Source E-end and output VO1+ end output VO1-end.Described PFM controller at least includes power end 5, earth terminal 1, switch arteries and veins
Rush outfan 2, switching current test side 3, test side, resonance the lowest point 4, it is also possible to include exporting voltage regulation signal feed back input 6 end,
Described transformator T1 at least includes armature winding NP and secondary windings NS；Described energy storage inductor L1 include energy storage winding LP and
Demagnetization detection winding LS；The control model of described PFM controller is the variable frequency modulation of ON time secured adjusted turn-off time
Joint pattern；The photosensitive tube of described photoelectrical coupler OP1 couples, for the luminous tube receiving photoelectrical coupler OP1, the output come
Voltage Stability Control signal.
Described resonant capacitance Cr and forward commutation diode D1 is in parallel, when positive activation type switching power converters primary side
When switching tube Q1 turns off, secondary windings NS inducts backward voltage can be through resonant capacitance Cr and secondary windings NS and afterflow two pole
The resonant branch resonance change of pipe D2 composition, makes the magnetic core magnetic reversal of transformator T1 and demagnetization, makes magnetic core reset；At switching tube
Before Q1 turns off, the voltage of resonant capacitance Cr is made up of the equivalent load of secondary windings NS, energy storage winding LP, electric capacity C1 parallel connection
Series loop be discharged to the relatively low electrical voltage point of ratio, the backward voltage that secondary windings NS inducts fills to Cr through sustained diode 2
Electricity, the backward voltage that secondary windings NS inducts will be changed by sinusoidal rule resonance than relatively low electrical voltage point from one, therefore, primary
The backward voltage inducted of winding NP also by from one than relatively low electrical voltage point be half-wave sinusoidal wave resonance change, switching tube two ends
Voltage waveform as shown in Figure 6, switching tube Q1 will approximate zero voltage turn-off, forward commutation diode D1 be also near zero voltage close
Disconnected, make the turn-off power loss of switching tube and diode reduce, improve the efficiency of forward power changer, and this half-wave is just
The amplitude of string ripple can serve the effect of the voltage stress reducing switching tube, it is not necessary to increase less than the half of input supply voltage
Add extra absorption or clamp circuit to reduce the voltage stress of switching tube, simplify positive activation type switching power converters circuit,
Reduce cost.
One demagnetization detection winding LS of described energy storage winding LP magnetic coupling, demagnetization detection winding LS Stored energy winding LP
Same inscription end 3 terminate input power E-end (input power ground), direction voltage one tunnel of demagnetization detection winding LS is through diode D3
Rectification and C2 filtering after power for PFM controller, another road after resistance R5 and R6 dividing potential drop by energy storage inductor degaussing process
Signal at the bottom of ring trough is to PFM controller, and PFM controller makes switching tube at ring ripple Valley-Switching, and switching tube belongs to no-voltage
Open-minded, fly-wheel diode is zero voltage turn-off, thus reduces switching tube conduction loss and fly-wheel diode turn-off power loss, carries
The high conversion efficiency of positive activation type switching power converters.
The another kind of the present invention is embodied as circuit as it is shown on figure 3, by forward rectification two pole in circuit shown in above-mentioned Fig. 2
Different inscription end 3 end of pipe D1 negative electrode reconfiguration secondary windings NS, D1 anode reconfiguration output VO1-end, same inscription end 4 end of secondary windings NS
Changing into being connected with same inscription end 1 end of energy storage winding LP with the negative electrode of sustained diode 2, resonant capacitance Cr is still whole with forward
Stream diode D1 is in parallel, and circuit function is consistent with circuit function shown in Fig. 2.
The third of the present invention is embodied as circuit as shown in Figure 4, by the photoelectrical coupler in circuit shown in above-mentioned Fig. 2
Output voltage regulation signal feed back input 6 end of OP1 and PFM controller removes, output voltage stabilization control signal change by resistance R5 and
Obtain after R6 dividing potential drop, input from the test side, resonance the lowest point 4 of PFM controller, after PFM controller processes, control PFM controller
Dutycycle, it is achieved output voltage stabilization, simplifies the circuit of positive activation type ZVT supply convertor further, makes cost drop
Low.
It should be noted that above-mentioned embodiment is only the present invention preferably embodiment, it is impossible to be understood as this
The restriction of invention protection domain, without departing under present inventive concept premise, any minor variations that the present invention is done and modification
Belong to protection scope of the present invention.
Claims (8)
1. a positive activation type ZVT supply convertor, it is characterised in that described supply convertor includes:
Switching tube Q1；
The transformator T1 being connected with the drain electrode of switching tube Q1；
The resistance R2 being connected with the source electrode of switching tube Q1 and resistance R4；
The resistance R3 being connected with the grid of switching tube Q1；
The PFM controller being connected with described resistance R2 and resistance R3 and resistance R3；
The forward commutation diode D1 that is connected with described transformator T1, sustained diode 2, resonant capacitance Cr, energy storage inductor L1,
Filter capacitor C1, input power E+ end and output VO1-end；
Resistance R1, resistance R5, resistance R6, commutation diode D3, energy storage inductor L1 and the input electricity being connected with described PFM controller
Source E-end；
The photoelectrical coupler OP1 being connected with described PFM controller；
The output VO1+ end being connected with described energy storage inductor L1 and filter capacitor C1.
A kind of positive activation type ZVT supply convertor the most according to claim 1, it is characterised in that described PFM
Controller at least includes earth terminal, switching pulse outfan, switching current test side, test side, resonance the lowest point, power end.
A kind of positive activation type ZVT supply convertor the most according to claim 2, it is characterised in that described PFM
Controller can also include exporting voltage regulation signal feedback input end.
A kind of positive activation type ZVT supply convertor the most according to claim 1, it is characterised in that described transformation
Device T1 at least includes armature winding NP and secondary windings NS.
A kind of positive activation type ZVT supply convertor the most according to claim 1, it is characterised in that described energy storage
Inductance L1 includes energy storage winding LP and demagnetization detection winding LS.
A kind of positive activation type ZVT supply convertor the most according to claim 1, it is characterised in that described PFM
Controller is the ON time PFM controller close to the variable ratio frequency changer shaping modes of secured adjusted turn-off time.
A kind of positive activation type ZVT supply convertor the most according to claim 1, it is characterised in that described positive activation type
The forward commutation diode two ends parallel resonance electric capacity of the primary side of ZVT supply convertor, resonant capacitance and transformator
Fly-wheel diode that secondary winding inductance is concatenated forms resonant tank and resonance, and the backward voltage of inducting of secondary windings makes magnetic core
Magnetic reversal and demagnetization.
A kind of positive activation type ZVT supply convertor the most according to claim 1, it is characterised in that positive activation type zero electricity
Compress switch supply convertor primary side energy storage inductor winding coupled demagnetization detection winding, demagnetization detection winding and energy storage
It is that the PFM controller of positive activation type ZVT supply convertor supplies after the rectified filtering of voltage that the winding voltage of inductance is contrary
Electricity, the most also by the resonance the lowest point of signal supply PFM controller at the bottom of the ring trough in degaussing process after electric resistance partial pressure blood pressure lowering
Detection input, makes the switching tube can be at ring ripple Valley-Switching, and it is open-minded that switching tube belongs to no-voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610601216.2A CN106230263B (en) | 2016-07-28 | 2016-07-28 | A kind of positive activation type zero voltage switch supply convertor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610601216.2A CN106230263B (en) | 2016-07-28 | 2016-07-28 | A kind of positive activation type zero voltage switch supply convertor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106230263A true CN106230263A (en) | 2016-12-14 |
| CN106230263B CN106230263B (en) | 2018-11-09 |
Family
ID=57534105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610601216.2A Active CN106230263B (en) | 2016-07-28 | 2016-07-28 | A kind of positive activation type zero voltage switch supply convertor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106230263B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107135593A (en) * | 2017-06-07 | 2017-09-05 | 深圳市奥金瑞科技有限公司 | Intelligent switch is detected and identification circuit |
| CN107706934A (en) * | 2017-10-24 | 2018-02-16 | 华南理工大学 | A kind of two-way normal shock battery energy storage system based on resonance degaussing |
| CN110912409A (en) * | 2019-11-07 | 2020-03-24 | 广州金升阳科技有限公司 | Forward and reverse excitation type switching power supply circuit |
| CN113037093A (en) * | 2021-03-16 | 2021-06-25 | 西安科技大学 | Forward converter with secondary rectifier diode connected with capacitor in parallel and system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101495934A (en) * | 2006-05-26 | 2009-07-29 | 剑桥半导体有限公司 | Resonant discontinuous forward power converter |
| CN102428753A (en) * | 2009-04-30 | 2012-04-25 | 赤多尼科两合股份有限公司 | Driver circuit for an led |
| CN103066872A (en) * | 2013-01-17 | 2013-04-24 | 矽力杰半导体技术(杭州)有限公司 | Integration switch power supply controller and switch power supply using the same |
| CN103391010A (en) * | 2013-07-25 | 2013-11-13 | 深圳市明微电子股份有限公司 | Switching power supply driving chip and switching power supply driving circuit |
| CN103715901A (en) * | 2012-10-05 | 2014-04-09 | Nxp股份有限公司 | Switched-mode power supply |
| US8711578B2 (en) * | 2012-06-05 | 2014-04-29 | Semiconductor Components Industries, Llc | Method of forming a power supply controller and structure therefor |
| CN103825468A (en) * | 2013-02-18 | 2014-05-28 | 崇贸科技股份有限公司 | Control circuit of flyback power converter |
| EP2829157A1 (en) * | 2012-03-21 | 2015-01-28 | Tridonic GmbH & Co KG | Operating circuit for leds, having dimming signal comprising high-frequency modulated pulse packet signal with harmonised frequencies |
| CN205265550U (en) * | 2015-03-18 | 2016-05-25 | 意法半导体股份有限公司 | System for power transistor of control power circuit, drive circuit's device and control power circuit |
| CN205921532U (en) * | 2016-07-28 | 2017-02-01 | 天宝电子（惠州）有限公司 | Formula zero voltage switch source transformation ware is just swashing |
-
2016
- 2016-07-28 CN CN201610601216.2A patent/CN106230263B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101495934A (en) * | 2006-05-26 | 2009-07-29 | 剑桥半导体有限公司 | Resonant discontinuous forward power converter |
| CN102428753A (en) * | 2009-04-30 | 2012-04-25 | 赤多尼科两合股份有限公司 | Driver circuit for an led |
| EP2829157A1 (en) * | 2012-03-21 | 2015-01-28 | Tridonic GmbH & Co KG | Operating circuit for leds, having dimming signal comprising high-frequency modulated pulse packet signal with harmonised frequencies |
| US8711578B2 (en) * | 2012-06-05 | 2014-04-29 | Semiconductor Components Industries, Llc | Method of forming a power supply controller and structure therefor |
| CN103715901A (en) * | 2012-10-05 | 2014-04-09 | Nxp股份有限公司 | Switched-mode power supply |
| CN103066872A (en) * | 2013-01-17 | 2013-04-24 | 矽力杰半导体技术(杭州)有限公司 | Integration switch power supply controller and switch power supply using the same |
| CN103825468A (en) * | 2013-02-18 | 2014-05-28 | 崇贸科技股份有限公司 | Control circuit of flyback power converter |
| CN103391010A (en) * | 2013-07-25 | 2013-11-13 | 深圳市明微电子股份有限公司 | Switching power supply driving chip and switching power supply driving circuit |
| CN205265550U (en) * | 2015-03-18 | 2016-05-25 | 意法半导体股份有限公司 | System for power transistor of control power circuit, drive circuit's device and control power circuit |
| CN205921532U (en) * | 2016-07-28 | 2017-02-01 | 天宝电子（惠州）有限公司 | Formula zero voltage switch source transformation ware is just swashing |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107135593A (en) * | 2017-06-07 | 2017-09-05 | 深圳市奥金瑞科技有限公司 | Intelligent switch is detected and identification circuit |
| CN107135593B (en) * | 2017-06-07 | 2023-12-05 | 深圳市奥金瑞科技有限公司 | Intelligent switch detection and identification circuit |
| CN107706934A (en) * | 2017-10-24 | 2018-02-16 | 华南理工大学 | A kind of two-way normal shock battery energy storage system based on resonance degaussing |
| CN107706934B (en) * | 2017-10-24 | 2023-07-18 | 华南理工大学 | Bidirectional forward battery energy storage system based on resonance demagnetization |
| CN110912409A (en) * | 2019-11-07 | 2020-03-24 | 广州金升阳科技有限公司 | Forward and reverse excitation type switching power supply circuit |
| CN110912409B (en) * | 2019-11-07 | 2020-12-18 | 广州金升阳科技有限公司 | Forward and reverse excitation type switching power supply circuit |
| CN113037093A (en) * | 2021-03-16 | 2021-06-25 | 西安科技大学 | Forward converter with secondary rectifier diode connected with capacitor in parallel and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106230263B (en) | 2018-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6525513B1 (en) | Soft switching topological circuit in boost or buck converter | |
| CN103812359B (en) | A kind of ac-dc conversion circuit and control method thereof | |
| CN103944397A (en) | Boost type isolated DC/DC converter and control method thereof | |
| CN103929058A (en) | Two-phase interleaved converter based on coupled inductors | |
| CN2917083Y (en) | Normal/reverse excitation combined DC/DC isolated transformer | |
| CN106230263A (en) | A kind of positive activation type ZVT supply convertor | |
| CN204707032U (en) | Based on the Zero voltage transition circuit of Boost | |
| CN109661072A (en) | LLC resonant converter, LED drive circuit and its control method | |
| CN205921532U (en) | Formula zero voltage switch source transformation ware is just swashing | |
| CN103904923A (en) | High-gain high-frequency boosting and rectifying isolated converter based on hybrid rectifying bridge arm and switch capacitors | |
| CN103887987A (en) | Multiple voltage-multiplying high-gain high-frequency rectification isolation converter based on switched capacitor | |
| CN102412715B (en) | Circuit of restraining reverse spike voltage output of commutation diode | |
| CN104362858A (en) | Control method applicable to high-power fixed-frequency quasi-resonant boost transformer | |
| CN105207490A (en) | Flyback-type multi-resonant Sepics | |
| CN104426377B (en) | Wide-input voltage flyback-type switch power supply applicable to drive of direct-current motor | |
| CN204858973U (en) | Isolation feedback supply circuit of LLC resonant transformation ware | |
| CN103944399A (en) | Low-input-current-ripple single-switch high-gain converter | |
| CN106452049A (en) | Combined circuit and power supply circuit used for combined circuit as well as display device | |
| CN101282092B (en) | Diode absorption circuit for bridge rectifier circuit | |
| CN207074953U (en) | A kind of soft switch back excitation type converter | |
| CN106413202A (en) | Primary control LED driving circuit based on SEPIC and Fly-back circuits | |
| CN203775028U (en) | Two-phase staggered parallel converter based on coupling inductors | |
| CN216564938U (en) | Three-winding coupling inductance high-gain DC/DC converter | |
| CN108736707A (en) | A kind of BOOST converter with switched inductors structure | |
| CN111049387B (en) | TLC II type resonant circuit and power converter applied by same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |