CN220156238U - Multifunctional charging circuit topological structure - Google Patents
Multifunctional charging circuit topological structure Download PDFInfo
- Publication number
- CN220156238U CN220156238U CN202320830543.0U CN202320830543U CN220156238U CN 220156238 U CN220156238 U CN 220156238U CN 202320830543 U CN202320830543 U CN 202320830543U CN 220156238 U CN220156238 U CN 220156238U
- Authority
- CN
- China
- Prior art keywords
- switch
- charging
- diode
- capacitor
- magnetic device
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a multifunctional charging circuit topology structure, a magnetic device L 2 The charging battery is electrically connected with the power conversion assembly;during wireless charging, the magnetic device L is enabled to be connected and disconnected through a switch in the power conversion assembly 2 The coupler is used as a coupler to be magnetically coupled with a coupler at the ground end, is converted into alternating current through an alternating high-frequency electromagnetic field, is rectified into direct current through a power conversion assembly and is input into a rechargeable battery; during boost charging, the magnetic component is used as a boost inductor by conversion control of the power conversion component, and the direct current input by the direct current charging seat is boosted and input to the rechargeable battery. The advantages are that: meanwhile, two charging functions, namely wireless charging and direct-current variable voltage charging, are realized, an additional power device is not required to be introduced, the utilization rate of a system switch, a controller, a capacitor, a magnetic core device and the like is improved, the use of materials is reduced, and the cost is reduced.
Description
Technical Field
The utility model relates to a multifunctional charging circuit topological structure, and belongs to the technical field of power conversion.
Background
The wireless charging of the electric vehicle can avoid manual operation, and the charging convenience is greatly improved. However, the wireless charging structure is complex and the cost is high.
In addition, the output of current wired direct current fills electric pile is mostly about 400V, and electric automobile's power battery begins generally to adopt the high-voltage battery about 800V, leads to the current charging pile that has installed can't adapt to novel 800V power battery car, causes the waste of resource. The potential solution is to introduce a DC-DC converter (boost converter) at the vehicle-mounted end to realize the matching of the direct voltage of the charging pile and the battery.
However, the existing electric automobile is provided with the boost converter and the wireless charger at the same time, so that the cost is high, the automobile space is occupied, and the weight of the automobile is increased. The existing integrated technology of the boost converter and the wireless charger needs to enter at least one extra large-volume power inductor or capacitor or switch to switch the working modes (the boost converter and the wireless charger are switched between the two modes), but as a high-frequency switch power supply circuit, a switch introduced in the circuit is subjected to larger voltage and current stress, the reliability problem of the switch is easily caused, and the switch is generally high in cost and is not suitable for automobiles in mass production.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a multifunctional charging circuit topological structure.
In order to solve the technical problems, the utility model provides a multifunctional charging circuit topology structure, which comprises a power conversion component and a magnetic device L 2 A direct current charging stand and a rechargeable battery;
the magnetic device L 2 Are respectively and electrically connected with the power conversion component and the direct current charging seat, theThe rechargeable battery is electrically connected with the power conversion assembly;
during wireless charging, the magnetic device L is enabled to be connected and disconnected through a switch in the power conversion assembly 2 The coupler is used as a coupler to be magnetically coupled with a coupler at the ground end, is converted into alternating current through an alternating high-frequency electromagnetic field, is rectified into direct current through the power conversion assembly, and is input into a rechargeable battery;
during boost charging, the magnetic device L is controlled by the power conversion module 2 As the boost inductor, the dc power input from the dc charging stand is boosted and input to the rechargeable battery.
Further, the method further comprises the following steps: capacitor C 2 The capacitor C 2 Respectively and magnetic device L 2 The power conversion assembly is electrically connected with the direct current charging seat;
the capacitor C is charged wirelessly 2 As a resonance capacitor for the magnetic device L 2 The inductance of (2) constitutes a resonant unit;
during boost charging, the capacitor C 2 The input filter capacitor is used for filtering the input voltage of the direct current charging seat.
Further, the inductance is self-inductance or leakage inductance.
Further, the magnetic device L 2 A first winding including a first magnet and wound around the first magnet;
one end of the first winding is connected with the power conversion component, and the other end is respectively connected with the capacitor C 2 And a DC charging seat anode.
Further, the first magnet is bar-shaped, mouth-shaped, ring-shaped or U-shaped.
Further, the power conversion assembly includes a first diode D 11 And a fourth switch S 4 ；
First diode D 11 The positive electrodes of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 Is a first diode D 11 The negative electrode of the (B) is connected with the positive electrode of the rechargeable battery, and the fourth switch S 4 The other ends of (2) are respectively connected with the rechargeable batteryNegative electrode, direct current charging seat negative electrode and capacitor C 2 Capacitance C 2 The other end of the power supply is respectively connected with the anode of the direct current charging seat and the magnetic device L 2 And the other end of (2).
Further, the first diode D 11 Is replaced by a first switch S 1 。
Further, the power conversion assembly includes a first diode D 11 Second diode D 12 Third switch S 3 And a fourth switch S 4 ；
First diode D 11 And a second diode D 12 The negative electrodes of the first diode D are connected with the positive electrode of the rechargeable battery 11 The positive electrodes of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 One end of the second diode D 12 The positive electrodes of (a) are respectively connected with a capacitor C 2 And a third switch S 3 The negative electrode of the rechargeable battery is respectively connected with the third switch S 3 Another end of (a) and a fourth switch S 4 The other end of the magnetic device L is connected with the negative electrode of the direct current charging seat, and the positive electrode of the direct current charging seat is respectively connected with the magnetic device L 2 And the other end of (C) and the capacitor C 2 And the other end of (2).
Further, the first diode D 11 Second diode D 12 Are respectively replaced by first switches S 1 And a second switch S 2 。
The utility model has the beneficial effects that:
the utility model realizes two charging functions, namely wireless charging and direct-current voltage-variable charging, does not need to introduce additional power devices, improves the utilization rate of a system switch, a controller, a capacitor, a magnetic core device and the like, reduces the use of materials and reduces the cost.
Drawings
FIG. 1 is a schematic circuit diagram of a half bridge rectifier-a single switch and a single diode;
FIG. 2 is a schematic circuit diagram of a half bridge rectifier-two switches;
FIG. 3 is a schematic circuit diagram of the power conversion device in full bridge;
FIG. 4 is a schematic circuit diagram of the second switch of the full bridge circuit in a closed state;
FIG. 5 is a schematic circuit diagram of a full bridge rectifier constructed of four switches;
fig. 6 is a magnetic device L 2 Scheme one boost state schematic;
fig. 7 is a magnetic device L 2 Scheme one wireless state of charge schematic;
fig. 8 is a magnetic device L 2 A schematic perspective view of the scheme (a);
fig. 9 is a magnetic device L 2 Scheme two boost state schematic;
fig. 10 is a magnetic device L 2 Scheme two wireless state of charge schematic;
fig. 11 is a magnetic device L 2 A scheme three boost state schematic;
fig. 12 is a magnetic device L 2 Scheme three wireless state of charge schematic.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
The utility model introduces a multifunctional charging circuit topology structure, which can realize wireless charging function and boost charging function, and comprises a power conversion assembly and a magnetic device L 2 A direct current charging stand and a rechargeable battery;
the magnetic device L 2 The rechargeable battery is electrically connected with the power conversion assembly;
during wireless charging, the magnetic device group L is enabled to be connected and disconnected through a switch in the power conversion assembly 2 The piece is used as a coupler to be magnetically coupled with a coupler at the ground end, is converted into alternating current through an alternating high-frequency electromagnetic field, is rectified into direct current through the power conversion assembly and is input into a rechargeable battery;
during boost charging, the magnetic component is used as a boost inductor through the conversion control of the power conversion component, and the direct current input by the direct current charging seat is boosted and input to the rechargeable battery;
the wireless charging and the boost charging do not work simultaneously.
Embodiment 1 As shown in FIG. 1, the topology of the present utility model includes a first diode D 11 And a fourth switch S 4 ；
Wherein the first diode D 11 The positive electrodes of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 Is a first diode D 11 The negative electrode of the (B) is connected with the positive electrode of the rechargeable battery, and the fourth switch S 4 The other end of the capacitor is respectively connected with the cathode of the rechargeable battery, the cathode N of the direct current charging seat and the capacitor C 2 Capacitance C 2 The other end of the power supply is respectively connected with the positive electrode P of the direct current charging seat and the magnetic device L 2 And the other end of (2).
The capacitor C is charged wirelessly 2 As a resonance capacitor, the inductance used for forming a resonance unit with the inductance of the magnetic device can be self inductance or leakage inductance, and the resonance frequency of the resonance unit is close to the switching frequency of the system;
during boost charging, the capacitor C 2 The input filter capacitor is used for filtering the input voltage of the direct current charging seat.
The working principle is as follows:
when in wireless charging: first diode D 11 Fourth switch S 4 Constituting a half-bridge rectifier, the fourth switch S when the rectifier is an uncontrolled passive rectifier 4 Performing the function of a diode; when the rectifier is a controllable active rectifier, the fourth switch S 4 Controlled by a PWM signal having a duty cycle of a magnitude related to the voltage gain of the rectifier, the PWM frequency being the same as the switching frequency of the system. Magnetic device L 2 And capacitor C 2 The output of (2) is rectified to dc by a half bridge rectifier and the capacitor C2 is implemented as a resonant capacitor.
When boost charging is performed: magnetic device L 2 And a first diode D 11 Fourth switchSwitch S 4 Constitutes a BOOST converter (BOOST), a fourth switch S 4 Controlled by a PWM signal having a duty cycle that is related to the voltage gain of the boost converter. Through a fourth control switch S 4 Realize the regulation of output voltage, capacitor C 2 Is implemented as an input decoupling capacitor, reducing input current ripple.
As shown in fig. 6, 7 and 8, the magnetic device L 2 Comprising a first winding 11 and a first magnet 12, wherein the first magnet 1 is bar-shaped;
magnetic device L at ground end 1 Comprising a second winding 21 and a second magnet 22;
when boost charging is performed: magnetic device L 2 Is a boost inductance.
When in wireless charging: magnetic device L 2 Is a coupler (coupling coil) connected with the magnetic core device L 1 Forming a magnetic coupling and forming a magnetic loop.
Embodiment 2 As shown in FIG. 2, the power conversion assembly of the topology of the present utility model is different from embodiment 1 in that it includes a first switch S 1 And a fourth switch S 4 ；
Wherein the first switch S 1 One ends of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 Is a first switch S 1 The other end of the switch is connected with the anode of the rechargeable battery, and a fourth switch S 4 The other end of the capacitor is respectively connected with the cathode of the rechargeable battery, the cathode N of the direct current charging seat and the capacitor C 2 Capacitance C 2 The other end of the power supply is respectively connected with the positive electrode P of the direct current charging seat and the magnetic device L 2 And the other end of (2).
The working principle is as follows:
when in wireless charging: first switch S 1 Fourth switch S 4 Forming a half-bridge rectifier, a first switch S when the rectifier is an uncontrolled passive rectifier 1 Fourth switch S 4 Performing the function of a diode; when the rectifier is a controllable active rectifier, the first switch S 1 Fourth switch S 4 Respectively controlled by PWM signals with a certain duty ratio, the two PWM signals are different, the PWM signals are differentThe frequency is the same as the switching frequency of the system. Magnetic device L 2 And capacitor C 2 The output of (2) is rectified to dc by a half bridge rectifier and the capacitor C2 is implemented as a resonant capacitor.
When boost charging is performed: magnetic device L 2 And a first switch S 1 Fourth switch S 4 Constitutes a BOOST converter (BOOST), a first switch S 1 Performs the function of a diode, a fourth switch S 4 Controlled by a PWM signal having a duty cycle that is related to the voltage gain of the boost converter. Through a fourth control switch S 4 Realize the regulation of output voltage, capacitor C 2 Is implemented as an input decoupling capacitor, reducing input current ripple.
Embodiment 3 As shown in FIG. 3, the topology of the present utility model includes a first diode D 11 Second diode D 12 Third switch S 3 And a fourth switch S 4 ；
First diode D 11 And a second diode D 12 The negative electrodes of the first diode D are connected with the positive electrode of the rechargeable battery 11 The positive electrodes of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 One end of the second diode D 12 The positive electrodes of (a) are respectively connected with a capacitor C 2 And a third switch S 3 The negative electrode of the rechargeable battery is respectively connected with the third switch S 3 Another end of (a) and a fourth switch S 4 The other end of the (C) and the negative electrode N of the direct current charging seat, the positive electrode P of the direct current charging seat is respectively connected with the magnetic device L 2 And the other end of (C) and the capacitor C 2 And the other end of (2).
As shown in fig. 9 and 10, the magnetic device L 2 Comprising a first winding 11 and a first magnet 12, wherein the first magnet 1 is mouth-shaped or ring-shaped;
magnetic device L at ground end 1 Comprising a second winding 21 and a second magnet 22;
when boost charging is performed: magnetic device L 2 For boost inductance, relative to the magnetic device L in example 1 2 Magnetic device L in this embodiment 2 The magnetic circuit of the first magnet 12 is closed, and the magnetic field leaks relativelyThe method is small, and has less influence on the surrounding environment.
When in wireless charging: magnetic device L 2 Is a coupler (coupling coil) connected with the magnetic core device L 1 Forming a magnetic coupling and forming a magnetic loop. The upper half of the ring magnet generates a small amount of magnetic flux compared to the bar magnet, which is not captured by the first winding and wasted.
The working principle is as follows:
when in wireless charging: first diode D 11 Second diode D 12 Third switch S 3 Fourth switch S 4 Forming a full bridge rectifier, a third switch S when the rectifier is an uncontrolled passive rectifier 3 Fourth switch S 4 Performing the function of a diode; when the rectifier is a controllable active rectifier, the third switch S 3 Fourth switch S 4 Each of which is controlled by a PWM signal having a duty cycle, the two PWM signals being different, the PWM frequency being the same as the switching frequency of the system. Magnetic device L 2 And capacitor C 2 The output of (2) is rectified into direct current by a full bridge, and a capacitor C 2 Is implemented as a resonant capacitance.
When boost charging is performed: magnetic device L 2 And a first diode D 11 Fourth switch S 4 Constitutes a BOOST converter (BOOST), a third switch S 3 In the closed state, the second diode D 12 In the blocking state, the fourth switch S 4 Controlled by a PWM signal having a duty cycle that is related to the voltage gain of the boost converter. By controlling a fourth switch S 4 Realize the regulation of output voltage, capacitor C 2 Is turned on by a third switch S 3 Is short to the ground (the negative electrode of the direct current charging seat and the battery negative electrode), so the capacitor C 2 Is implemented as an input decoupling capacitor, reducing input current ripple.
Embodiment 4 As shown in FIG. 4, the power conversion assembly of the present utility model is different from embodiment 3 in that the topology of the present utility model includes a first switch S 1 Second switch S 2 Third switch S 3 And a fourth switch S 4 ；
First switchS 1 And a second switch S 2 One end of each of the first switches S is connected with the positive electrode of the rechargeable battery 1 The other ends of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 A second switch S 2 The other ends of (a) are respectively connected with a capacitor C 2 And a third switch S 3 The negative electrode of the rechargeable battery is respectively connected with the third switch S 3 Another end of (a) and a fourth switch S 4 The other end of the (C) and the negative electrode N of the direct current charging seat, the positive electrode P of the direct current charging seat is respectively connected with the magnetic device L 2 And the other end of (C) and the capacitor C 2 And the other end of (2).
The working principle is as follows:
when in wireless charging: first switch S 1 Second switch S 2 Third switch S 3 Fourth switch S 4 Forming a full bridge rectifier, a first switch S when the rectifier is an uncontrolled passive rectifier 1 Second switch S 2 Third switch S 3 Fourth switch S 4 Performing the function of a diode; when the rectifier is a controllable active rectifier, the first switch S 1 Second switch S 2 Third switch S 3 Fourth switch S 4 Each of the four PWM signals is controlled by a PWM signal with a certain duty ratio, the four PWM signals are different, and the frequency of the PWM is the same as the switching frequency of the system. Magnetic device L 2 And capacitor C 2 The output of (2) is rectified into direct current by a full bridge, and a capacitor C 2 Is implemented as a resonant capacitance.
When boost charging is performed: magnetic device L 2 And a first switch S 1 Fourth switch S 4 Constitutes a BOOST converter (BOOST), a third switch S 3 In the closed state, a first switch S 1 Performs the function of a diode, a second switch S 2 In the off state, the fourth switch S 4 Controlled by a PWM signal having a duty cycle that is related to the voltage gain of the boost converter. By controlling a fourth switch S 4 Realize the regulation of output voltage, capacitor C 2 Is turned on by a third switch S 3 Is short to ground, so the capacitor C 2 Implemented as input decoupling capacitance, reducing inputCurrent ripple.
Embodiment 5, as shown in FIGS. 11 and 12, is different from embodiment 4 in that a magnetic device L 2 Comprising a first winding 11 and a first magnet 12, wherein the first magnet 1 is U-shaped;
when boost charging is performed: the magnetic device L2 is a boost inductor. The magnetic path is the air gap including the first magnet of U type and U type concave region, and the magnetic field of first magnet upside and downside leaks less, and is less to the electronic device influence of its upside, and external environment for the downside is also less, simultaneously because U type is less for mouthful shape or return shape magnet's volume, and weight is lighter.
When in wireless charging: the magnetic device L2 is a coupler (coupling coil) that forms a magnetic circuit with the magnetic core device L1.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (9)
1. The utility model provides a multifunctional charging circuit topological structure which is characterized in that the multifunctional charging circuit topological structure comprises a power conversion component and a magnetic device L 2 A direct current charging stand and a rechargeable battery;
the magnetic device L 2 The rechargeable battery is electrically connected with the power conversion assembly;
during wireless charging, the magnetic device L is enabled to be connected and disconnected through a switch in the power conversion assembly 2 The coupler is used as a coupler to be magnetically coupled with a coupler at the ground end, is converted into alternating current through an alternating high-frequency electromagnetic field, is rectified into direct current through the power conversion assembly, and is input into a rechargeable battery;
during boost charging, the magnetic device L is controlled by the power conversion module 2 As the boost inductor, the dc power input from the dc charging stand is boosted and input to the rechargeable battery.
2. The multi-function charging circuit topology of claim 1, further comprising: capacitor C 2 The capacitor C 2 Respectively and magnetic device L 2 The power conversion assembly is electrically connected with the direct current charging seat;
the capacitor C is charged wirelessly 2 As a resonance capacitor for the magnetic device L 2 The inductance of (2) constitutes a resonant unit;
during boost charging, the capacitor C 2 The input filter capacitor is used for filtering the input voltage of the direct current charging seat.
3. The multi-function charging circuit topology of claim 2, wherein the inductance is self-inductance or leakage inductance.
4. The multi-function charging circuit topology of claim 2, wherein the magnetic device L 2 A first winding including a first magnet and wound around the first magnet;
one end of the first winding is connected with the power conversion component, and the other end is respectively connected with the capacitor C 2 And a DC charging seat anode.
5. The multi-function charging circuit topology of claim 4, wherein the first magnet is bar, mouth, ring, or U-shaped.
6. The multi-function charging circuit topology of any of claims 2-5, wherein the power conversion assembly comprises a first diode D 11 And a fourth switch S 4 ；
First diode D 11 The positive electrodes of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 Is a first diode D 11 The negative electrode of the (B) is connected with the positive electrode of the rechargeable battery, and the fourth switch S 4 The other end of the battery is respectively connected with the negative electrode of the rechargeable battery, the negative electrode of the direct current charging seat and the negative electrode of the direct current charging seatCapacitor C 2 Capacitance C 2 The other end of the power supply is respectively connected with the anode of the direct current charging seat and the magnetic device L 2 And the other end of (2).
7. The multi-function charging circuit topology of claim 6, wherein said first diode D 11 Is replaced by a first switch S 1 。
8. The multi-function charging circuit topology of any of claims 2-5, wherein the power conversion assembly comprises a first diode D 11 Second diode D 12 Third switch S 3 And a fourth switch S 4 ；
First diode D 11 And a second diode D 12 The negative electrodes of the first diode D are connected with the positive electrode of the rechargeable battery 11 The positive electrodes of (a) are respectively connected with the magnetic devices L 2 And a fourth switch S 4 One end of the second diode D 12 The positive electrodes of (a) are respectively connected with a capacitor C 2 And a third switch S 3 The negative electrode of the rechargeable battery is respectively connected with the third switch S 3 Another end of (a) and a fourth switch S 4 The other end of the magnetic device L is connected with the negative electrode of the direct current charging seat, and the positive electrode of the direct current charging seat is respectively connected with the magnetic device L 2 And the other end of (C) and the capacitor C 2 And the other end of (2).
9. The multi-function charging circuit topology of claim 8, wherein the first diode D 11 Second diode D 12 Are respectively replaced by first switches S 1 And a second switch S 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320830543.0U CN220156238U (en) | 2023-04-14 | 2023-04-14 | Multifunctional charging circuit topological structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320830543.0U CN220156238U (en) | 2023-04-14 | 2023-04-14 | Multifunctional charging circuit topological structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220156238U true CN220156238U (en) | 2023-12-08 |
Family
ID=89010497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320830543.0U Active CN220156238U (en) | 2023-04-14 | 2023-04-14 | Multifunctional charging circuit topological structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220156238U (en) |
-
2023
- 2023-04-14 CN CN202320830543.0U patent/CN220156238U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11404965B2 (en) | DC-DC converter, on-board charger, and electric vehicle | |
| US9793719B2 (en) | Non-contact power supply apparatus | |
| CN108964469B (en) | Full-bridge double LLC resonant converter with parallel-series structure | |
| CN109728624A (en) | Vehicle-mounted charge-discharge system | |
| CN110417266A (en) | Dcdc converter, Vehicular charger and electric vehicle | |
| KR101936462B1 (en) | Battery charger for an electric vehicle | |
| CN110774909A (en) | OBC circuit, OBC charger, new energy automobile and fill electric pile | |
| CN103187864B (en) | Buck active power factor correction device | |
| CN108808875B (en) | Constant-current and constant-voltage wireless charging system and wireless charging method suitable for battery characteristics | |
| JP2012039707A (en) | Non-contact charging device | |
| CN107332324A (en) | Charging electric car storage battery charge-discharge control system based on AC DC conversion equipments | |
| CN201054545Y (en) | Middle power multi-channel output thin switch power supply | |
| KR102488223B1 (en) | Charging system for electric vehicle with resonant dc-dc converter | |
| Reddy et al. | Novel wide voltage range multi-resonant bidirectional DC-DC converter | |
| CN102355038B (en) | High voltage direct current charger | |
| CN220156238U (en) | Multifunctional charging circuit topological structure | |
| CN110562058B (en) | Charging and discharging circuit, system and electric automobile | |
| CN112421734A (en) | Single-stage high-order compensation constant-current constant-voltage wireless charging device and method | |
| CN218867984U (en) | Vehicle-mounted end LCC compensation circuit of automobile wireless charging system | |
| CN111740510A (en) | Wireless charging method and system based on phase shift regulation control | |
| WO2012093423A1 (en) | Non-contact charging system power supply device | |
| CN112491162B (en) | Wireless power transmission device | |
| CN111404405B (en) | Step-down rectification circuit and wireless charging vehicle end control unit | |
| CN103532385B (en) | Boost circuit and hybrid electric vehicle provided with same | |
| CN208299693U (en) | A kind of Switching Power Supply of full bridge structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |