CN215498733U - Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter - Google Patents

Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter Download PDF

Info

Publication number
CN215498733U
CN215498733U CN202122323736.0U CN202122323736U CN215498733U CN 215498733 U CN215498733 U CN 215498733U CN 202122323736 U CN202122323736 U CN 202122323736U CN 215498733 U CN215498733 U CN 215498733U
Authority
CN
China
Prior art keywords
capacitor
diode
circuit
voltage
converter
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
Application number
CN202122323736.0U
Other languages
Chinese (zh)
Inventor
韦正怡
张民
周明珠
王凤莲
曹益畅
赵振伟
袁成功
赵昌
薛鹏飞
叶睿明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao University of Technology
Original Assignee
Qingdao University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao University of Technology filed Critical Qingdao University of Technology
Priority to CN202122323736.0U priority Critical patent/CN215498733U/en
Application granted granted Critical
Publication of CN215498733U publication Critical patent/CN215498733U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

The utility model provides a switch capacitor coupling inductance DC-DC converter, an improved triple voltage circuit, comprising: the voltage doubling unit and the double coupling winding are arranged; the double-coupling winding comprises a secondary winding and a primary winding; the secondary winding and the primary winding are both arranged in the triple voltage unit, and the turn ratio of the secondary winding and the primary winding is adjusted to adjust the voltage gain of the DC-DC converter. The utility model can improve the boost gain of the DC-DC converter by adjusting the turn ratio of the double-coupling winding, and has the advantages of simple structure and high working efficiency.

Description

Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter
Technical Field
The utility model relates to the technical field of DC-DC converters, in particular to an improved triple voltage circuit and a switch capacitor coupling inductance DC-DC converter.
Background
At the present stage, the problems of energy crisis and environmental pollution are aggravated continuously, and the rapid development of clean energy and green energy is promoted. The photovoltaic system, the fuel cell, the tidal power generation and other clean energy conversion technologies have wide development prospects, in practical application, the electric energy conversion circuit structures need higher efficiency and boost gain, but because the boost capability of a single module in the energy conversion process is too low, higher output voltage cannot be obtained. High-gain DC-DC boost converters play an increasingly important role in many industrial applications, such as uninterruptible power supplies, renewable energy systems, distributed photovoltaic power generation systems, and DC micro-grids. In applications such as grid-tied systems or UPS, a high gain converter is used as an interface between a low voltage input source (photovoltaic panel, fuel cell, and battery pack) and an inverter to meet the high voltage requirements at the input of the inverter. This application mode requires a converter functioning as an interface to have high-gain, high-efficiency performance. . Therefore, it is an urgent problem to research how to enable the conventional DC-DC converter to output a higher output voltage by using structural changes and technical fusion.
The high-gain DC-DC converter proposed so far has the following disadvantages: have high switching losses, low circuit efficiency, complex structure or use a large number of passive components. Therefore, it has become a research focus in the field of power electronics to identify a DC-DC converter with simple structure, high operating efficiency and high voltage gain performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an improved triple voltage circuit and a switched capacitor coupling inductance DC-DC converter, which can improve the boost gain of the DC-DC converter by adjusting the turn ratio of double coupling windings and have the advantages of simple structure and high working efficiency.
In order to achieve the purpose, the utility model provides the following scheme:
an improved voltage tripling circuit for use in a DC-DC converter, the improved voltage tripling circuit comprising:
the voltage doubling unit and the double coupling winding are arranged;
the double-coupling winding comprises a secondary winding and a primary winding which are coupled with each other; the secondary winding and the primary winding are both arranged in the triple voltage unit, and the turn ratio of the secondary winding to the primary winding is adjustable.
Optionally, the triple-pressing unit specifically includes:
inductor LkCapacitor C2Capacitor C4Diode D2And a diode D3；
The inductance LkAnd said capacitor C2The negative electrode of (1) is connected;
the capacitor C2Respectively with the capacitor C4Cathode of (2), the diode D3And the diode D2The cathode of (a) is connected;
the capacitor C4And said diode D3The cathode of (a) is connected;
the secondary winding is arranged on the capacitor C2And said capacitor C4To (c) to (d);
the primary winding is arranged on the inductor LkAnd said capacitor C2In the meantime.
Optionally, the triple-pressing unit further includes:
inductor Lm；
The inductance LmAnd is connected in parallel with the primary winding.
A switched capacitor coupled inductor DC-DC converter, the switched capacitor coupled inductor DC-DC converter comprising:
the circuit comprises a switched capacitor circuit, a clamping circuit, a power switch tube and the improved triple voltage circuit;
the switched capacitor circuit, the clamping circuit and the improved triple voltage circuit are all connected with the positive electrode of a power supply;
the clamping circuit and the improved triple voltage circuit are both connected with a collector of the power switch tube;
the emitting electrode of the power switch tube is connected with the negative electrode of the power supply;
the improved triple voltage circuit is also connected with the switched capacitor circuit.
Optionally, the clamp circuit specifically includes:
capacitor C1And a diode D1；
The capacitor C1The negative electrode of the power supply is connected with the positive electrode of the power supply;
the capacitor C1Respectively with the diode D1And said diode D2The anode of (2) is connected;
the diode D1Respectively with one end of the primary winding and the capacitor C2Is connected with the collector of the power switch tube.
Optionally, the switched capacitor circuit specifically includes:
capacitor C3Capacitor C5Diode D4And a diode D5；
The capacitor C3The negative electrode of the power supply is connected with the positive electrode of the power supply;
the capacitor C3Respectively with the diode D4And said diode D5The anode of (2) is connected;
the diode D4Respectively with the capacitor C4Anode of (2), the diode D3And said capacitor C5The negative electrode of (1) is connected;
the capacitor C5And the diode D5Is connected to the cathode.
Optionally, the switched capacitor coupled inductor DC-DC converter further includes:
a load circuit;
the load circuit specifically comprises:
diode D6Capacitor C6And a load;
the diode D6Respectively with the capacitor C5And the diode D5The cathode of (a) is connected;
the diode D6Respectively with said capacitor C6Is connected with one end of the load;
the capacitor C6And the other end of the load is respectively connected with the negative electrode of the power supply.
Optionally, the voltage gain of the switched capacitor coupled inductor DC-DC converter is:
Figure BDA0003278651870000031
wherein B is the voltage gain of the switched capacitor coupled inductor DC-DC converter, wherein Vo1Is the load voltage, Vg1Is the power supply voltage, N is the turn ratio, N is N2:N1，N1And N2The number of turns of the primary winding and the number of turns of the secondary winding are respectively, and D is a duty ratio.
According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects:
the utility model provides a switch capacitor coupling inductance DC-DC converter, an improved triple voltage circuit, comprising: the voltage doubling unit and the double coupling winding are arranged; the double-coupling winding comprises a secondary winding and a primary winding; the secondary winding and the primary winding are both arranged in the triple voltage unit, and the turn ratio of the secondary winding and the primary winding is adjusted to adjust the voltage gain of the DC-DC converter. The utility model can improve the boost gain of the DC-DC converter by adjusting the turn ratio of the double-coupling winding, and has the advantages of simple structure and high working efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a circuit diagram of a switched capacitor coupled inductor DC-DC converter according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a working state of a power switch in an embodiment of the present invention;
FIG. 3 is a schematic diagram of the power switch in the embodiment of the present invention in the off state;
fig. 4 is a diagram illustrating a conventional switched capacitor structure according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide an improved triple voltage circuit and a switched capacitor coupling inductance DC-DC converter, which can improve the boost gain of the DC-DC converter by adjusting the turn ratio of double coupling windings and have the advantages of simple structure and high working efficiency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
Fig. 1 is a circuit diagram of a switched capacitor coupled inductor DC-DC converter according to an embodiment of the present invention, and as shown in fig. 1, the present invention provides an improved voltage tripling circuit applied to a DC-DC converter, including:
the voltage doubling unit and the double coupling winding are arranged;
the double-coupled winding comprises secondary windings L coupled with each otherN2And a primary winding LN1(ii) a The secondary winding and the primary winding are both arranged in the triple voltage unit, and the turn ratio of the secondary winding to the primary winding is adjustable.
Wherein, triple presses the unit, specifically includes:
inductor LkCapacitor C2Capacitor C4Diode D2And a diode D3；
Inductor LkOne terminal of and a capacitor C2The negative electrode of (1) is connected;
capacitor C2Respectively with a capacitor C4Cathode of (2), diode D3And diode D2The cathode of (a) is connected;
capacitor C4Anode and diode D3The cathode of (a) is connected;
the secondary winding is arranged on the capacitor C2And a capacitor C4To (c) to (d);
the primary winding is arranged on the inductor LkAnd a capacitor C2In the meantime.
Specifically, the triple pressure unit further includes:
inductor Lm；
Inductor LmConnected in parallel with the primary winding.
Example two
As shown in fig. 1, the present invention further provides a switched capacitor coupled inductor DC-DC converter, comprising:
the circuit comprises a switched capacitor circuit, a clamping circuit, a power switch tube S and the improved triple voltage circuit;
switched capacitor circuit, clamping circuit and improved triple voltage circuit are connected with power supply VgConnecting the positive electrode;
the clamping circuit and the improved triple voltage circuit are both connected with a collector of the power switch tube;
the emitter of the power switch tube is connected with the cathode of the power supply;
the improved triple voltage circuit is also connected with the switched capacitor circuit.
Wherein, the clamp circuit specifically includes:
capacitor C1And a diode D1；
Capacitor C1The negative electrode of the power supply is connected with the positive electrode of the power supply;
capacitor C1Respectively with a diode D1Cathode and diode D2The anode of (2) is connected;
diode D1Respectively connected with one end of the primary winding and the capacitor C2Is connected with the collector of the power switch tube.
Specifically, the switched capacitor circuit specifically includes:
capacitor C3Capacitor C5Diode D4And a diode D5；
Capacitor C3The negative electrode of the power supply is connected with the positive electrode of the power supply;
capacitor C3Respectively with a diode D4Cathode and diode D5The anode of (2) is connected;
diode D4Respectively with a capacitor C4Anode of (2), diode D3Cathode and capacitor C5The negative electrode of (1) is connected;
capacitor C5Anode and diode D5Is connected to the cathode.
Preferably, the switched capacitor coupled inductor DC-DC converter provided by the present invention further comprises:
a load circuit;
the load circuit specifically includes:
diode D6Capacitor C6And a load Vo；
Diode D6Respectively with a capacitor C5Anode and diode D5The cathode of (a) is connected;
diode D6Respectively with a capacitor C6Is connected with one end of a load;
capacitor C6And the other end of the load is respectively connected with the negative electrode of the power supply.
Specifically, the voltage gain of the switched capacitor coupled inductor DC-DC converter is:
Figure BDA0003278651870000061
wherein B is the voltage gain of the switched capacitor coupled inductor DC-DC converter, wherein Vo1Is the load voltage, Vg1Is the power supply voltage, N is the turn ratio, N is N2:N1，N1And N2The number of turns of the primary winding and the number of turns of the secondary winding are respectively, and D is a duty ratio.
Specifically, the utility model provides a switched capacitor coupling inductor high-gain DC-DC converter fused with a voltage doubling unit, which comprises a DC input power supply VgThe improved triple voltage circuit (3MVC), a clamping circuit, a switch capacitor circuit and a load circuit; the duty ratio D is conducted by controlling the switch, so that the energy exchange between the input direct-current power supply and the output is realized, and the high-voltage gain is obtained. The switched capacitor circuit is obtained by transforming the traditional switched capacitor structure (figure 4), and performs various connection modes in structural form for conversion and combination. The three voltage doubling unit is a traditional diode, capacitor and inductor integrated voltage doubling unit. According to the utility model, the coupling inductor is integrated into the voltage doubling unit to form the voltage doubling unit with high boosting capacity, and high boosting conversion of the output voltage to the DC power supply voltage is realized by changing the turn ratio of the coupling winding.
Furthermore, the utility model comprises a coupling inductor (double coupling windings LN1, LN2), a first diode D, a second diode D, a third diode D, a fourth diode D, a fifth diode D, and a sixth diode D1、D2、D3、D4、D5、D6And a first, a second, a third, a fourth, a fifth and a sixth capacitor C1、C2、C3、C4、C5、C6；
Furthermore, the on-off driving mode of the power switch tube S adopts a PWM control mode. The PWM control mode comprises a unipolar mode and a bipolar mode, compared with the unipolar mode, the bipolar PWM mode control circuit and the main circuit are simpler, but higher harmonic components in output voltage of the unipolar PWM mode are much smaller than those of the bipolar PWM mode.
In the embodiment, the turn ratio between the double coupling windings is n, and the capacity of high voltage conversion regulation can be more flexibly realized by changing the turn ratio of the coupling windings.
Diode D1、D2、D3、D4、D5、D6Is a fast recovery diode. The fast recovery diode has the characteristics of good switching characteristic and short reverse recovery time, the internal structure of the fast recovery diode is different from that of a common PN junction diode, and the fast recovery diode belongs to a PIN junction diode, namely, a base region I is added between a P-type silicon material and an N-type silicon material to form a PIN silicon chip. Because the base region is very thin and the reverse recovery charge is very small, the fast recovery diode can realize the effects of short reverse recovery time, reduced forward voltage and high reverse voltage withstanding value when being applied to the utility model.
The switching signal may be generated using a PWM control method, including a bipolar PWM control method and a unipolar control method. The bipolar PWM mode control circuit and main circuit are simpler than the unipolar mode, but the higher harmonic components in the output voltage of the unipolar PWM mode are much smaller than in the bipolar PWM mode. The utility model adopts a unipolar PWM control method to realize the on-off of the switch module, can improve the working efficiency of the switch module, and reduce the switching loss, thereby integrally improving the working efficiency of the circuit structure.
The switch capacitor coupling inductance DC-DC converter provided by the utility model mainly has 2 traditional on/off working modes in a steady-state working period. The working state of the on-state is schematically shown in FIG. 2, the switch tube S is on, and the diode D is on2、D3And D5On, D1And D4And (6) turning off. At this time, the excitation current and the leakage inductance current increase linearly. Voltage source VgAnd a capacitor C1Through a power switch tube S and a diode D2Continue to be capacitance C2And winding LN2And (6) charging. Capacitor C3Through diode D5Is a capacitor C5、C4And (6) charging. Output capacitor C6Providing energy to the load. The working state diagram in the off state is shown in fig. 3, the power switch tube S is turned off, and the diode D is turned off1、D4And D6On, D2、D3And D5And (6) turning off. Leakage inductance energy pass diode D1Is a capacitor C1Charging, leakage inductance current ILkAnd decreases. C2Discharging into the winding LN2Providing energy, and reacting with C4Together through diode D4Is a capacitor C3And (6) charging. Voltage source VgAnd a capacitor C2、C4And C5The load is supplied with energy via a diode Do.
By using the inductance volt-second balance rule of the first and second windings LN1 and LN2 of the coupled inductor, an expression of the output voltage can be obtained
Figure BDA0003278651870000081
Figure BDA0003278651870000082
When the design requires that the output voltage is converted into more than 10 times of the input voltage, if the expression V of the Boost gain of the traditional Boost circuit is usedo1＝Vg1/(1-D)The calculation is carried out, when 10 times of boost gain required by the design is achieved, the required duty ratio D must reach 0.9, and the switching tube of the circuit is in a limit state, so that the working efficiency of the whole circuit is easily affected, the probability of damage of devices is increased, and the boost conversion efficiency of the whole circuit is finally affected. In the present embodiment, according to the analysis of the circuit voltage relationship, the output and input voltage relational expressions of the switched capacitor coupled inductor high-gain DC-DC converter topology integrated with the voltage doubling unit designed in the utility model are as follows:
Figure BDA0003278651870000083
if the design requires that the circuit structure can obtain 10 times of boost gain, when the through duty ratio is 0.125, the output requirement can be achieved only by the fact that n is 2 when the number of turns of the coupling winding is required. Therefore, when the design requirement obtains a high boost multiple, the occurrence of the condition of the limit duty ratio is avoided, the switching loss of the device is reduced, the probability of the device damage is reduced, and the safety and the reliability of the converter topology are further improved, so that the working efficiency of the circuit is integrally improved.
Compared with the existing DC-DC boost converter circuit topological structure, the purpose of obtaining high boost gain under the condition of small duty ratio is realized by adjusting the turn ratio of the coupling inductance winding, the voltage stress of the circuit is reduced by utilizing the designed connection mode of the coupling inductance winding and the existing active clamping structure, the electromagnetic interference is reduced, and the reliability of the circuit structure is improved. The switched capacitor coupling inductor high-gain DC-DC converter topology structure integrated with the voltage doubling unit is reasonable in overall design, safe to use, simple to operate and high in application potential. The novel converter boost topological structure designed by the utility model has the advantages of fewer used devices and low design cost, reduces the device loss, improves the working efficiency of a circuit, and basically achieves the ideal effect of the design requirement.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims (8)

1. An improved voltage tripling circuit for use in a DC-DC converter, the improved voltage tripling circuit comprising:
the voltage doubling unit and the double coupling winding are arranged;
the double-coupling winding comprises a secondary winding and a primary winding which are coupled with each other; the secondary winding and the primary winding are both arranged in the triple voltage unit, and the turn ratio of the secondary winding to the primary winding is adjustable.
2. The improved voltage tripling circuit according to claim 1, wherein the voltage tripling unit comprises:
inductor LkCapacitor C2Capacitor C4Diode D2And a diode D3；
The inductance LkAnd said capacitor C2The negative electrode of (1) is connected;
the capacitor C2Respectively with the capacitor C4Cathode of (2), the diode D3And the diode D2The cathode of (a) is connected;
the capacitor C4And said diode D3The cathode of (a) is connected;
the secondary winding is arranged on the capacitor C2And said capacitor C4To (c) to (d);
the primary winding is arranged on the inductor LkAnd said capacitor C2In the meantime.
3. The improved voltage tripling circuit of claim 2, wherein the voltage tripling unit further comprises:
inductor Lm；
The inductance LmAnd is connected in parallel with the primary winding.
4. A switched capacitor coupled inductor DC-DC converter, the switched capacitor coupled inductor DC-DC converter comprising:
switched capacitor circuit, clamping circuit, power switch tube and improved triple voltage circuit according to any of claims 1-3;
the switched capacitor circuit, the clamping circuit and the improved triple voltage circuit are all connected with the positive electrode of a power supply;
the clamping circuit and the improved triple voltage circuit are both connected with a collector of the power switch tube;
the emitting electrode of the power switch tube is connected with the negative electrode of the power supply;
the improved triple voltage circuit is also connected with the switched capacitor circuit.
5. The switched capacitor coupled inductor DC-DC converter of claim 4, wherein the clamping circuit comprises:
capacitor C1And a diode D1；
The capacitor C1The negative electrode of the power supply is connected with the positive electrode of the power supply;
the capacitor C1Respectively with the diode D1And said diode D2The anode of (2) is connected;
the diode D1Respectively with one end of the primary winding and the capacitor C2Is connected with the collector of the power switch tube.
6. The switched-capacitor coupled-inductor DC-DC converter according to claim 5, wherein the switched-capacitor circuit comprises:
capacitor C3Capacitor C5Diode D4And a diode D5；
The capacitor C3The negative electrode of the power supply is connected with the positive electrode of the power supply;
the capacitor C3Respectively with the diode D4And said diode D5The anode of (2) is connected;
the diode D4Respectively with the capacitor C4Anode of (2), the diode D3And said capacitor C5The negative electrode of (1) is connected;
the capacitor C5And the diode D5Is connected to the cathode.
7. The switched-capacitor coupled inductor DC-DC converter of claim 6, further comprising:
a load circuit;
the load circuit specifically comprises:
diode D6Capacitor C6And a load;
the diode D6Respectively with the capacitor C5And the diode D5The cathode of (a) is connected;
the diode D6Respectively with said capacitor C6Is connected with one end of the load;
the capacitor C6And the other end of the load is respectively connected with the negative electrode of the power supply.
8. The switched capacitor coupled inductor DC-DC converter of claim 7, wherein the voltage gain of the switched capacitor coupled inductor DC-DC converter is:
Figure FDA0003278651860000021
wherein B is the voltage gain of the switched capacitor coupled inductor DC-DC converter, wherein Vo1In order to be the voltage of the load,Vg1is the power supply voltage, N is the turn ratio, N is N2:N1，N1And N2The number of turns of the primary winding and the number of turns of the secondary winding are respectively, and D is a duty ratio.
CN202122323736.0U 2021-09-26 2021-09-26 Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter Active CN215498733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122323736.0U CN215498733U (en) 2021-09-26 2021-09-26 Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122323736.0U CN215498733U (en) 2021-09-26 2021-09-26 Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter

Publications (1)

Publication Number Publication Date
CN215498733U true CN215498733U (en) 2022-01-11

Family

ID=79769969

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122323736.0U Active CN215498733U (en) 2021-09-26 2021-09-26 Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter

Country Status (1)

Country Link
CN (1) CN215498733U (en)

Similar Documents

Publication Publication Date Title
CN111371316B (en) Zero-input ripple high-gain direct current converter based on coupling inductor
CN211183828U (en) Improved CMVR-II voltage-boosting inverter
CN113394975B (en) High-voltage gain DC-DC direct current converter
CN112072942A (en) Improved switch coupling inductor quasi Z source inverter
CN107919797B (en) Wide input range interleaving parallel connection type high-efficiency boost direct-current converter for fuel cell
CN210724563U (en) T gamma novel boost DC-DC converter topology
CN216699827U (en) High-gain double-switch coupling inductance DC-DC converter
CN113938002B (en) Capacitive clamping H-type boost converter based on switch inductance/capacitance
CN109672332A (en) A kind of zero ripple DC-DC converter of single tube high-gain
CN109921674B (en) Improved Cockcroft-Walton single-stage boosting inverter
CN216599417U (en) Cascaded switch capacitor coupling inductor high-gain DC-DC converter
CN108736707B (en) BOOST converter with switch inductance structure
CN116365878A (en) High-boost soft-switching direct-current converter applied to direct-current micro-grid system
CN113410990B (en) High-efficiency high-gain quasi-Z-source soft switching DC-DC converter
CN212367152U (en) Unipolar boost inverter of integrated switched capacitor circuit
CN215498733U (en) Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter
CN110165915B (en) Novel voltage-multiplying-Z source inverter
CN109905025B (en) High-gain DC-DC switch converter
CN112054672A (en) DC-DC high-voltage gain converter integrating switched capacitor and Y-source network
CN109921638B (en) Double-switch high step-up ratio direct current converter
CN109560702B (en) DC three-level boost converter integrating coupling inductance technology
CN113726152A (en) Improved triple voltage circuit and switch capacitor coupling inductance DC-DC converter
CN216599418U (en) High-gain coupling inductance DC-DC converter fused with switched capacitor technology
CN218335757U (en) Switch clamping three-winding high-gain DC-DC converter
CN212572385U (en) DC-DC high-voltage gain converter integrating switched capacitor and Y-source network

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant