CN205811867U - Power supply adaptor - Google Patents
Power supply adaptor Download PDFInfo
- Publication number
- CN205811867U CN205811867U CN201620686510.3U CN201620686510U CN205811867U CN 205811867 U CN205811867 U CN 205811867U CN 201620686510 U CN201620686510 U CN 201620686510U CN 205811867 U CN205811867 U CN 205811867U
- Authority
- CN
- China
- Prior art keywords
- converter
- power supply
- supply adaptor
- output voltage
- electric pressure
- 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.)
- Active
Links
Classifications
-
- 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 power supply adaptor, is used for providing electric power to make electronic installation operate, and power supply adaptor comprises electric pressure converter, LLC converter and control module.LLC converter is electrically connected to electric pressure converter and receives the input voltage provided from electric pressure converter.Having multistage output voltage drive pattern in control module, control module is electrically connected to electric pressure converter, LLC converter and electronic installation.Control module determines the output voltage corresponding with one of them driving LLC converter output of multistage output voltage drive pattern according to the demand electric power of electronic installation, control module changes the input voltage of electric pressure converter supply LLC converter according to output voltage, makes power supply adaptor have fixed gain.
Description
Technical field
This utility model relates to a kind of power supply adaptor, a kind of power supply can powered according to the demand of electronic installation
Adapter.
Background technology
Using increasing LLC converter in present generation power supplies design, this is owing to their efficiency operation.General
LLC converter mainly can produce different output voltages according to the size of input voltage, but, such operation but allows LLC
The transducer efficiency when underloading is the best.
To this, and LLC converter is had to use the design of single constant output voltage to produce；But, power supply in this type of design
Input voltage range narrow, and make the compatibility of power supply the best.
Summary, the most unsolved demand is present in the art, to solve aforementioned drawback with not enough.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of power supply adaptor, is used for providing electric power to make electronics fill
Put running.
To achieve these goals, this utility model provides a kind of power supply adaptor, it is provided that electric power makes an electronic installation
Running, wherein, this power supply adaptor comprises:
One electric pressure converter；
One LLC converter, is electrically connected to this electric pressure converter and receives the input electricity provided from this electric pressure converter
Pressure；And
One control module, is electrically connected to this electric pressure converter, this LLC converter and this electronic installation, in this control module
Have multistage output voltage drive pattern, determine to drive mould with this multistage output voltage with the demand electric power according to this electronic installation
One of them of formula drives an output voltage of this LLC converter output correspondence and changes this input voltage, makes this power adaptation
Utensil has a fixed gain.
Above-mentioned power supply adaptor, wherein, this control module comprises:
One holds unit in order to detect the friendship of demand electric power；
One changes the control unit of this input voltage according to this output voltage, electrically connects this friendship and holds unit, the conversion of this voltage
Device and this LLC converter, this control unit receives after this friendship holds the demand electric power signal that unit is transmitted, drives this LLC
Transducer provides this output voltage.
Above-mentioned power supply adaptor, wherein, has a fixed ratio between this output voltage and this input voltage.
Above-mentioned power supply adaptor, wherein, this fixed ratio scope is 16-20.
Above-mentioned power supply adaptor, wherein, this fixed gain is equal to a number of turns ratio of this LLC converter divided by half
This fixed ratio.
Above-mentioned power supply adaptor, wherein, this electric pressure converter is boost converter (BOOST), step-down controller, lifting
Pressure converter or power factor correction converter.
Beneficial functional of the present utility model is: be available for providing multistage output voltage, to adapt to the fortune of different electronic installation
Make demand.
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail, but not as to this utility model
Restriction.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram according to power supply adaptor of the present utility model；
Fig. 2 is the circuit diagram according to LLC converter of the present utility model；
Fig. 3 is the LLC converter DC voltage gain performance diagram when input voltage changes；
Fig. 4 is the LLC converter DC voltage gain performance diagram when input voltage is fixed；And
Fig. 5 is the LLC converter DC current gain performance diagram when fixing DC voltage.
Wherein, reference
10 power supply adaptors
100 commutators
110 electric pressure converters
120 LLC converter
122 rectification circuits
130 control modules
140 first ultramagnifiers
150 second ultramagnifiers
20 electronic installations
AC_IN AC-input voltage
Cf output filter
Cr resonant capacitor
DC_OUT VD
D1, D2 diode
Dr1, Dr2 commutation diode
Lr resonant inductor
Lm magnetizing inductance device
Q1, Q2 power switch
S1, S2 switches set
T transformator
Vin input voltage
Vo output voltage
Wp armature winding
Ws secondary windings
Detailed description of the invention
Structural principle and operation principle to the present invention are described in detail below in conjunction with the accompanying drawings:
Referring to Fig. 1, it is the circuit block diagram of the power supply adaptor according to this utility model the first embodiment.Power supply is fitted
Orchestration 10 is electrically connected to electronic installation 20, in order to provide electronic installation 20 demand voltage；Wherein, power supply adaptor 10 is available for providing
Multistage output voltage (such as arbitrary in 5 volts to 25 volts, and can be 5 volts, 12 volts, 20 volts) with in response to not
Operating requirements with electronic installation 20.
Power supply adaptor 10 comprises commutator 100, electric pressure converter 110, LLC converter 120 and control module 130.Whole
Stream device 100 is connected to AC mains, and LLC converter 120 is connected to electronic installation 20, and electric pressure converter 110 is located at commutator
Between 100 and LLC converter 120, and it is electrically connected to commutator 100 and LLC converter 120.
Commutator 100 is in order to change AC-input voltage AC_IN, for example, to the AC-input voltage received
AC_IN carries out all wave rectification, so as to output VD DC_OUT.Commutator 100 can be for example, by four power rectifiers
The bridge rectifier that diode is formed.
Electric pressure converter 110 is electrically connected to commutator 100, in order to output (the i.e. VD to commutator 100
DC_OUT) adjustment of PFC and/or voltage level is carried out.Electric pressure converter 110 can be boost converter (boost
Converter), step-down controller (buck converter), type of voltage step-up/down converter (buck-boost converter) or merit
Rate factor correcting transducer；Wherein, defeated in order to commutator 100 of boost converter, step-down controller and type of voltage step-up/down converter
Go out (i.e. VD DC_OUT) and carry out the adjustment of level, defeated except in order to commutator 100 of power factor corrector
Go out and carry out outside PFC, it is also possible to the VD DC_OUT exported by commutator 100 is converted into higher defeated
Enter voltage Vin to the LLC converter 120 of next stage.
LLC converter 120 is electrically connected to electric pressure converter 110, and receives the input voltage that electric pressure converter 110 is provided
Vin.Referring to Fig. 2, it is the circuit diagram according to LLC converter of the present utility model.In fig. 2, LLC converter 120 comprises
Switches set S1 and S2, resonant capacitor Cr, resonant inductor Lr, magnetizing inductance device Lm, transformator T, rectification circuit 122 and output
Wave filter Cf.
Switches set S1 comprises the power switch Q1 and diode D1 being connected in parallel, and switches set S2 comprises the power being connected in parallel
Switch Q2 and diode D2.Power switch Q1 and Q2 can such as be respectively mos field effect transistor
(Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET).The source electrode of power switch Q1 is even
It is connected to the drain electrode of power switch Q2；The drain electrode of power switch Q1 and the source electrode of power switch Q2 are connected to as shown in Figure 1
Electric pressure converter 110, and accept the input voltage vin that electric pressure converter 110 is provided.The anode of diode D1 is connected to power
The source electrode of switch Q1, the negative electrode of diode D1 is connected to the drain electrode of power switch Q1；The anode of diode D2 is connected to power and opens
Closing the source electrode of Q2, the negative electrode of diode D2 is connected to the drain electrode of power switch Q2.Diode D1 and D2 can also be power switch
The body diode of Q1 and Q2.
Power switch Q1 and Q2 receives the input voltage vin that electric pressure converter 110 is provided, and according to the first ultramagnifier
140 signals sent are to switch between conducting (turn-on) or cut-off (turn-off) state, and output ripple direct current letter
Number.
Resonant capacitor Cr is connected between the source electrode of power switch Q1 and the drain electrode of power switch Q2, with at power switch
Pulsating direct current signal is received when Q1 and Q2 alternate conduction and cut-off.The armature winding Wp of magnetizing inductance device Lm and transformator T is also
Connection connects.Resonant inductor Lr is attached between resonant capacitor Cr and magnetizing inductance device Lm.Resonant capacitor Cr except with
Outside DC component with obstruct pulsating direct current signal, and form resonance circuit with resonant inductor Lr and magnetizing inductance device Lm.
Transformator T comprises the armature winding Wp and secondary windings Ws of electromagnetic coupled, and transformator T is the secondary windings Ws number of turn
The center tapped transformer that (or claiming the number of turns) is equal.Rectification circuit 122 comprises commutation diode Dr1 and Dr2, and its grade connects respectively
It is connected to the secondary windings Ws of transformator T, in order to will be converted to the direct current having dither composition by the alternating voltage of transformator T
Voltage.
Output filter Cf is connected to rectification circuit 122, and it is in order to filter the height of the DC voltage of rectification circuit 122 output
Frequently ripple component, and then export stable VD Vo, aforementioned output voltage Vo is transferred to electronic installation 20.
The DC voltage gain of LLC converter 120 meets following condition:
Wherein,
M is the DC voltage gain of LLC converter 120；
N is the number of turns ratio of the armature winding Wp and secondary windings Ws of transformator T；
Vo is the output voltage of LLC converter 120；And
Vin is the input voltage that electric pressure converter 110 is supplied to LLC converter 120.
Subject to the foregoing, change when electric pressure converter 110 is supplied to the input voltage vin of LLC converter 120
Time, the frequency-tuning range that the operation frequency (such as: switches set S1, the operation frequency of S2) of LLC converter 120 is done at Fig. 3
In F-min1～F-max1, change is under conditions of maintaining enough gains, the operation regulating frequency scope of LLC converter 120
Wide；This makes the LLC converter 120 switch cost when underloading operates (shown in Q=2 curve) big, and then generation efficiency is not
Good problem.
The use of electric pressure converter 110 can allow the output voltage Vin being supplied to LLC converter 120 fix (i.e. constant voltage),
The operation frequency making LLC converter 120 changes in frequency-tuning range F-min2～F-max2 shown in Fig. 4.Can by Fig. 4
See, use constant voltage design can allow LLC converter 120 operational frequency range in vibration, than Fig. 3 be provided without constant voltage design
The operation frequency (i.e. changing in frequency-tuning range F-min1～F-max1) of LLC converter 120 is little.Therefore, constant voltage design
LLC converter can efficiently solve the problem that the produced greatly efficiency of aforementioned underloading switch cost is the best.But, according to front
State the DC voltage gain condition of LLC converter 120, when the input voltage vin of LLC converter 120 is fixed, its output voltage
Vo also no change amount；It is to say, when the input voltage vin of LLC converter 120 is definite value, its output voltage Vo is also fixed
Value.Input voltage vin in constant voltage designs is incompatible in many group output voltage Vo, and the compatibility causing power supply is the best.
Therefore, this utility model further utilizes control module 130 to enter the output voltage Vo of LLC converter 120
Row detecting, and it is supplied to the input of LLC converter 120 according to the detecting result of output voltage Vo to regulate and control electric pressure converter 110
Voltage Vin, to allow voltage adapter 10 have fixed gain.
More specifically, control module 130 comprises friendship and holds unit 132 and control unit 134, and friendship is held unit 132 and electrically connected
In LLC converter 120 and electronic installation 20, control unit 134 is electrically connected to friendship and holds unit 132 and electric pressure converter 110.Control
Module 130 can in have multistage output voltage drive pattern, to allow electric pressure converter 110 be supplied to the input of LLC converter 120
Voltage Vi can change along with the output voltage Vo of LLC converter 120 and driving voltage transducer 110 generation is supplied to LLC and turns
The different input voltage vin of parallel operation 120；Wherein, every section of output voltage drive pattern can allow power supply adaptor 10 export through design
A constant output voltage Vo.Therefore, every section of output voltage drive corresponding to module to input voltage Vi also can be steady state value.
Whereby, the operation frequency that can allow LLC converter 120 changes in frequency-tuning range F-min3～F-max3 shown in Fig. 5.
In other words, power supply adaptor of the present utility model can export chosen many groups constant output voltage, therefore, compares
For Fig. 4 is only capable of exporting the LLC converter of single constant voltage, possesses the high power supply compatibility.Further, defeated compared to Fig. 3
Go out voltage Vo and change (i.e. output voltage Vo is not specified) at frequency-tuning range F-min1～F-max1 with input voltage Vi completely
Interior change, the operation frequency that power supply adaptor 10 of the present utility model changes in frequency-tuning range F-min3～F-max3
Little, therefore, power supply adaptor 10 of the present utility model possesses high efficiency performance.
Again refering to Fig. 1, hand over and hold unit 132 in order to link up with electronic installation 20.When power supply adaptor 10 and electronic installation 20
During connection, friendship is held unit 132 and many groups output voltage that power supply adaptor 10 can be provided by can be supplied to electronic installation 20, for
One of many group output voltage Vo are being selected, so as to reaching to identify the effect of the demand voltage of electronic installation 20 with electronic installation 20
Really.
Afterwards, friendship is held unit 132 and the demand electric power signal with recognition result (or claiming testing result) can be delivered to control
Unit 134, control unit 134 according to aforesaid testing result with select multistage output voltage drive pattern one of them, and
According to this section of selected output voltage drive pattern with driving voltage transducer 110, electric pressure converter 110 is allowed to produce should
Section input voltage Vi specified by output voltage drive pattern.Wherein, electric pressure converter 110 is supplied to the defeated of LLC converter 120
Enter voltage Vin to change under conditions of fixed ratio, i.e. with output voltage Vo
Vin=K × Vo；
Wherein,
Vin is the input voltage of the be supplied to LLC converter of electric pressure converter 110 120；
Vo is the output voltage of LLC converter 120；And
K is fixed ratio.
It is to say, control unit 134 can be according to the output voltage arrived corresponding to the output voltage drive pattern selected
Vo adjusts the input voltage Vi that electric pressure converter 110 produces, and whereby, the DC voltage gain of power supply adaptor 10 can maintain
In fixed value；Meanwhile, voltage adapter 10 can also be electric in response to the output that the demand electric power offer of electronic installation 20 running is different
Pressure Vo.Additionally, the operational frequency range of power supply adaptor 10 can have not because of the multistage output voltage pattern of control module 130
Expand with output voltage, as shown in Figure 5.
To be illustrated, the lower limit at AC-input voltage AC_IN is 80 volts, and the maximum of power supply adaptor 10 is defeated
Going out voltage is 20 volts, and minimum output voltage is under the restriction of 5 volts, and aforesaid fixed ratio meets following condition:
16≤K≤20。
Further, under fixed gain, when the DC voltage gain of power supply adaptor 10 be M, n be at the beginning of transformator T
The number of turns ratio of level winding Wp and secondary windings Ws, K is fixed ratio, meets following condition:
Power supply adaptor 10 can also comprise the first ultramagnifier 140 and the second ultramagnifier 150.First ultramagnifier 140 is electrically connected
It is connected to LLC converter 120, and the control of LLC converter 120 can be carried out according to output voltage Vo.Second ultramagnifier 150 electrically connects
In electric pressure converter 110, and to be supplied to the input voltage vin of LLC converter 120 to carry out electricity according to electric pressure converter 110
The control of pressure converter 110.
Referring to Fig. 1, the gain fixing means that the power supply adaptor 10 that this utility model provides can disclose as follows
To provide operating requirements voltage to electronic installation 20.First, it is provided that power supply adaptor 10, multistage is had in power supply adaptor 10 defeated
Go out voltage driven mode, and be available for producing and multistage output voltage drive pattern corresponding multistage output voltage.Power supply adaptor
10 include LLC converter 120.Then, power supply adaptor 10 can carry out the identification of demand voltage of electronic installation 20；It identifies
Mode can be for example and by power supply adaptor 10, its available multistage output voltage is supplied to electronic installation 20 and selects.Complete
After becoming the identification of demand voltage of electronic installation 20, just may decide that the output voltage Vo of power supply adaptor 10.In order to carry
For selected output voltage Vo, the input voltage vin of LLC converter 120 must be adjusted according to the output voltage Vo selected
Whole, to allow LLC converter 120 have fixing DC voltage gain.Wherein, power supply adaptor 10 is wanted to provide multistage output electricity
Pressure, the fixed ratio having between output voltage Vo and the input voltage vin of LLC converter 120 can e.g. between 16 to
Between 20.
Certainly, this utility model also can have other various embodiments, spiritual and essence without departing substantially from this utility model
In the case of, those of ordinary skill in the art when making various corresponding change and deformation according to this utility model, but these
Corresponding change and deformation all should belong to the scope of the claims appended by this utility model.
Claims (6)
1. a power supply adaptor, it is provided that electric power makes an electronic installation running, it is characterised in that this power supply adaptor comprises:
One electric pressure converter；
One LLC converter, is electrically connected to this electric pressure converter and receives the input voltage provided from this electric pressure converter；With
And
One control module, is electrically connected to this electric pressure converter, this LLC converter and this electronic installation, has in this control module
Multistage output voltage drive pattern, determines with the demand electric power according to this electronic installation with this multistage output voltage drive pattern
One of them drives an output voltage of this LLC converter output correspondence and changes this input voltage, makes this power adaptation utensil
There is a fixed gain.
2. power supply adaptor as claimed in claim 1, it is characterised in that this control module comprises:
One holds unit in order to detect the friendship of demand electric power；
One changes the control unit of this input voltage according to this output voltage, electrically connect this friendship hold unit, this electric pressure converter with
And this LLC converter, this control unit receives after this friendship holds the demand electric power signal that unit is transmitted, drives this LLC to change
Device provides this output voltage.
3. power supply adaptor as claimed in claim 1, it is characterised in that have between this output voltage and this input voltage
Fixed ratio.
4. power supply adaptor as claimed in claim 3, it is characterised in that this fixed ratio scope is 16-20.
5. power supply adaptor as claimed in claim 3, it is characterised in that this fixed gain is equal to the one of this LLC converter
The number of turns is than this fixed ratio divided by half.
6. power supply adaptor as claimed in claim 1, it is characterised in that this electric pressure converter is that boost converter, blood pressure lowering turn
Parallel operation, type of voltage step-up/down converter or power factor correction converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686510.3U CN205811867U (en) | 2016-07-01 | 2016-07-01 | Power supply adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686510.3U CN205811867U (en) | 2016-07-01 | 2016-07-01 | Power supply adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811867U true CN205811867U (en) | 2016-12-14 |
Family
ID=57512353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620686510.3U Active CN205811867U (en) | 2016-07-01 | 2016-07-01 | Power supply adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308322A (en) * | 2019-06-29 | 2019-10-08 | 杭州涂鸦信息技术有限公司 | A method of calculating power supply adaptor electricity |
-
2016
- 2016-07-01 CN CN201620686510.3U patent/CN205811867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308322A (en) * | 2019-06-29 | 2019-10-08 | 杭州涂鸦信息技术有限公司 | A method of calculating power supply adaptor electricity |
| CN110308322B (en) * | 2019-06-29 | 2021-07-23 | 杭州涂鸦信息技术有限公司 | Method for calculating electric quantity of power adapter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10554141B2 (en) | Parallel hybrid converter apparatus and method | |
| US9461554B2 (en) | Hybrid converter using a resonant stage and a non-isolated stage | |
| US20100259240A1 (en) | Bridgeless PFC converter | |
| US8488346B2 (en) | Power conversion apparatus and method | |
| JP2015144554A (en) | Power conversion equipment | |
| KR20100018061A (en) | Multi-output switching power supply device | |
| US8064228B2 (en) | Power supply apparatus with current-sharing function | |
| WO2012064755A1 (en) | Cascade power system architecture | |
| AU2017394665B2 (en) | Transformer based gate drive circuit | |
| CN102549903A (en) | Boundary mode coupled inductor boost power converter | |
| JP2006129548A (en) | Power converter | |
| JP2016123258A (en) | Switching power source and charging device | |
| CN101834527B (en) | Two-stage switching power supply conversion circuit | |
| US11063526B2 (en) | Power conversion equipment | |
| CN110445387B (en) | Topological structure and control method of formation and grading power supply | |
| US11451161B2 (en) | Power switcher, power rectifier, and power converter including cascode-connected transistors | |
| CN205811867U (en) | Power supply adaptor | |
| US20110058392A1 (en) | Current-sharing power supply apparatus | |
| Alou et al. | A high efficiency voltage regulator module with single winding self-driven synchronous rectification | |
| US7079403B2 (en) | Isolated DC-DC converters | |
| CN214045447U (en) | Flyback power converter and controller thereof | |
| US11005380B2 (en) | Power supply device | |
| Sano et al. | Improving dynamic performance and efficiency of a resonant switched-capacitor converter based on phase-shift control | |
| CN108649794B (en) | High-voltage power supply circuit | |
| CN106329928B (en) | Resonance converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |