CN115940641B - Boost converter - Google Patents

Boost converter Download PDF

Info

Publication number
CN115940641B
CN115940641B CN202310222167.1A CN202310222167A CN115940641B CN 115940641 B CN115940641 B CN 115940641B CN 202310222167 A CN202310222167 A CN 202310222167A CN 115940641 B CN115940641 B CN 115940641B
Authority
CN
China
Prior art keywords
capacitor
diode
inductor
boost
switching tube
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
CN202310222167.1A
Other languages
Chinese (zh)
Other versions
CN115940641A (en
Inventor
乐卫平
林伟群
唐亚海
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.)
Shenzhen CSL Vacuum Science and Technology Co Ltd
Original Assignee
Shenzhen CSL Vacuum Science and Technology Co Ltd
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 Shenzhen CSL Vacuum Science and Technology Co Ltd filed Critical Shenzhen CSL Vacuum Science and Technology Co Ltd
Priority to CN202310222167.1A priority Critical patent/CN115940641B/en
Publication of CN115940641A publication Critical patent/CN115940641A/en
Application granted granted Critical
Publication of CN115940641B publication Critical patent/CN115940641B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

The invention relates to a boost converter, which comprises a first boost module, a second boost module and an output module; the second boost module comprises a switch network, wherein the switch network comprises a first diode, a second capacitor, a third capacitor and a second inductor; the cathode of the first diode is connected with the first end of the second inductor and the second end of the second capacitor, and the second end of the second inductor is connected with the first end of the third capacitor and the anode of the second diode; the first boosting module comprises a first switching tube, and when the first switching tube is conducted, the first diode and the second diode are cut off; when the first switch tube is turned off, the first diode and the second diode are turned on; the output module is connected with the second boost module, and the boost converter solves the problem of low voltage gain of the existing converter.

Description

Boost converter
Technical Field
The invention relates to the technical field of converters, in particular to a boost converter.
Background
The DC-DC converter has wide application due to extremely high efficiency and wide input and output range. Conventional DC-DC converters such as Buck-Boost, cuk, sepic and Zeta may be used to provide boost or Buck gain, but their voltage gain is limited, and the duty cycle needs to be increased to increase the voltage gain, but this may result in inefficiency of the converter.
Disclosure of Invention
Aiming at the defect of low voltage gain of the converter in the prior art, the invention provides a boost converter.
To achieve the purpose, the invention adopts the following technical scheme: a boost converter includes a first boost module, a second boost module, and an output module;
the second boost module comprises a switch network, wherein the switch network comprises a first diode, a second capacitor, a third capacitor and a second inductor;
the cathode of the first diode is connected with the first end of the second inductor and the second end of the second capacitor, and the second end of the second inductor is connected with the first end of the third capacitor and the anode of the second diode;
the first boosting module comprises a first switching tube, and when the first switching tube is conducted, the first diode and the second diode are cut off; when the first switch tube is turned off, the first diode and the second diode are turned on;
the output module is connected with the second boosting module.
Preferably, the second boost module further includes a second boost unit, a first end of the second boost unit is connected with the first boost module, and a second end of the second boost unit is connected with an anode of the first diode.
Preferably, the second boost module further includes a third boost unit, a first end of the third boost unit is connected with the second end of the third capacitor, and a second end of the third boost unit is connected with the output module.
Preferably, the first boost module further comprises a first boost unit, a first end of the first boost unit is connected with a positive electrode of the power supply, a second end of the first boost unit is connected with a first end of the first switch tube, and a second end of the first switch tube is connected with a negative electrode of the power supply.
Preferably, the output module comprises an output capacitor, a first end of the output capacitor is connected with the cathode of the second diode, and a second end of the output capacitor is connected with the second end of the third boost unit; the load is connected in parallel to two ends of the output capacitor.
Preferably, the first boost unit is a first inductor.
Preferably, the second boost unit is a first capacitor.
Preferably, the third boost unit is a third inductor.
Preferably, the first switching tube is a field effect tube, the first end of the first switching tube is a drain electrode of the field effect tube, the second end of the first switching tube is a source electrode of the field effect tube, and the third end of the first switching tube is a grid electrode of the field effect tube.
Preferably, the boost converter comprises a first operation mode and a second operation mode in one switching period;
first working mode: the first switch tube is conducted, the first diode and the second diode are cut off, and the power supply charges the first inductor; the first capacitor charges the second capacitor, the third capacitor and the second inductor; the output capacitor supplies power to the load, and the output capacitor charges the third inductor;
second mode of operation: the first switch Guan Jiezhi, the first diode and the second diode are conducted, and the power supply, the first inductor and the second capacitor charge the first capacitor; the second inductor, the third inductor, the second capacitor and the third capacitor supply power to the load.
The beneficial effects are that: under the same duty ratio, the voltage gain of the converter provided by the embodiment is twice that of the traditional converter, the voltage stress of the first switch tube, the first diode and the second diode is low and half that of the traditional converter, and the transmission efficiency of the converter is high.
Drawings
The invention will now be described in further detail with reference to the drawings and to specific embodiments.
Fig. 1 is a schematic diagram of a boost converter according to the present invention.
Fig. 2 is a second topological structure diagram of a boost converter according to the present invention.
Fig. 3 is a circuit diagram of an operation of the boost converter according to the present invention in a first operation mode.
Fig. 4 is a circuit diagram of an operation of the boost converter according to the present invention in the second operation mode.
Fig. 5 is a diagram of one of the main operation waveforms of a boost converter provided in the present invention in one switching cycle.
FIG. 6 is a second diagram of the main operation waveforms of a boost converter according to the present invention in a switching cycle.
Reference numerals: VIN, power supply; l1, a first inductor; l2, a second inductor; l3, a third inductor; s1, a first switching tube; d1, a first diode; d2, a second diode; c1, a first capacitor; c2, a second capacitor; c3, a third capacitor; co, output capacitance; r, load; 10. a first boosting unit; 20. a second boosting unit; 30. a switching network; 40. and a fourth boosting unit.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, the present embodiment provides a boost converter including a first boost module, a second boost module, and an output module.
Referring to fig. 2, the first boost module includes a first boost unit 10 and a first switching tube S1, where the first boost unit 10 is a first inductor L1; the first end of the first inductor L1 and the second end of the first switching tube S1 are input ends of the converter, the input ends are connected with the power source VIN, specifically, the first end of the first inductor L1 is connected with the positive electrode of the power source VIN, the second end of the first switching tube S1 is connected with the negative electrode of the power source VIN, and the second end of the first inductor L1 is connected with the first end of the first switching tube S1.
In this embodiment, the first switching tube S1 is a field effect tube, the first end of the first switching tube S1 is a drain electrode of the field effect tube, the second end of the first switching tube S1 is a source electrode of the field effect tube, and the third end of the first switching tube S1 is a gate electrode of the field effect tube.
The second boost module comprises a second boost unit 20, a third boost unit 40 and a switch network 30, wherein the second boost unit 20 is a first capacitor C1, the third boost unit 40 is a third inductor L3, and the switch network 30 comprises a first diode D1, a second diode D2, a second capacitor C2, a third capacitor C3 and a second inductor L2;
the first end of the first capacitor C1 is connected with the second end of the first inductor L1, the second end of the first capacitor C1 is connected with the anode of the first diode D1, the second end of the third capacitor C3 and the first end of the third inductor L3, the cathode of the first diode D1 is connected with the second end of the second capacitor C2 and the first end of the second inductor L2, the first end of the third capacitor C3 is connected with the second end of the second inductor L2 and the anode of the second diode D2, and the second end of the first switch tube S1 is connected with the first end of the second capacitor C2 and the cathode of the second diode D2.
The output module comprises an output capacitor Co, a first end of the output capacitor Co is connected with the cathode of the second diode D2, and a second end of the output capacitor Co is connected with the second end of the third inductor L3. The two ends of the output capacitor Co are the output ends of the converter, the voltage of the two ends is the output voltage, and the load R is connected in parallel with the two ends of the output capacitor Co; specifically, the first end of the output capacitor Co is connected to the positive electrode of the load R, and the second end of the output capacitor Co is connected to the negative electrode of the load R.
The boost converter has a first mode and a second mode during a cycle.
As shown in fig. 3, when the converter is in the first mode, the first switch tube S1 is turned on, the first diode D1 and the second diode D2 are turned off, and the power source VIN charges the first inductor L1; the first capacitor C1 charges the second capacitor C2, the third capacitor C3 and the second inductor L2; the output capacitor Co charges the dc load R and the third inductor L3.
As shown in fig. 4, when the converter is in the second mode, the first switching tube S1 is turned off, the first diode D1 and the second diode D2 are turned on, and the power supply VIN, the first inductor L1 and the second capacitor C2 charge the first capacitor C1; the second inductor L2, the third inductor L3, the second capacitor C2 and the third capacitor C3 release electric energy to be provided to the dc load R.
The voltage gain of the converter provided by the embodiment is twice that of the traditional converter, and the voltage stress of the first switch tube S1, the first diode D1 and the second diode D2 of the converter provided by the embodiment is low and half that of the traditional converter; the converter realizes high voltage gain and simultaneously enables the first switching tube S1, the first diode D1 and the second diode D2 to bear lower voltage stress, so that the transmission efficiency of the converter is ensured.
Example 2
Referring to fig. 1 and 2, specifically, a boost converter includes a first boost module, a second boost module, and an output module;
the first boosting module comprises a first boosting unit 10 and a first switching tube S1, wherein the first boosting unit 10 is a first inductor L1;
the first end of the first inductor L1 and the second end of the first switching tube S1 are input ends of the converter, the input ends are connected with the power source VIN, specifically, the first end of the first inductor L1 is connected with the positive electrode of the power source VIN, the second end of the first switching tube S1 is connected with the negative electrode of the power source VIN, and the second end of the first inductor L1 is connected with the first end of the first switching tube S1.
In this embodiment, the first switching tube S1 is a field effect tube, the first end of the first switching tube S1 is a drain electrode of the field effect tube, the second end of the first switching tube S1 is a source electrode of the field effect tube, and the third end of the first switching tube S1 is a gate electrode of the field effect tube.
The second boost module includes a second boost unit 20, a switch network 30, and a third boost unit 40, where the second boost unit 20 is a first capacitor C1, the switch network 30 includes a first diode D1, a second diode D2, a second capacitor C2, a third capacitor C3, and a second inductor L2, and the third boost unit 40 is a third inductor L3.
The first end of the first capacitor C1 is connected with the second end of the first inductor L1, the second end of the first capacitor C1 is connected with the anode of the first diode D1, the second end of the third capacitor C3 and the first end of the third inductor L3, the cathode of the first diode D1 is connected with the second end of the second capacitor C2 and the first end of the second inductor L2, the first end of the third capacitor C3 is connected with the second end of the second inductor L2 and the anode of the second diode D2, and the second end of the first switch tube S1 is connected with the first end of the second capacitor C2 and the cathode of the second diode D2.
The output module comprises an output capacitor Co, the two ends of the output capacitor Co are output ends of the converter, specifically, the first end of the output capacitor Co is connected with the positive electrode of the load R and the negative electrode of the power supply VIN, and the second end of the output capacitor Co is connected with the negative electrode of the load R and the second end of the third inductor.
The first switch tube S1 of the first boost module is used for controlling the on and off of the first diode D1 and the second diode D2, controlling the current flow path in the converter, and enabling each device to be charged and discharged orderly, so that the voltage of the output capacitor Co is increased, and the high voltage gain of the converter is realized.
In this embodiment, the first capacitor C1, the second capacitor C2, the third capacitor C3 and the output capacitor Co are all nonpolar capacitors.
The boost converter has a first mode and a second mode during a cycle.
As shown in fig. 3, when the converter is in the first mode, the first switch tube S1 is turned on, the first diode D1 and the second diode D2 are turned off, and the power source VIN charges the first inductor L1; the first capacitor C1 charges the second capacitor C2, the third capacitor C3 and the second inductor L2; the output capacitor Co charges the dc load R and the third inductor L3.
As shown in fig. 4, when the converter is in the second mode, the first switching tube S1 is turned off, the first diode D1 and the second diode D2 are turned on, and the power supply VIN, the first inductor L1 and the second capacitor C2 charge the first capacitor C1; the second inductor L2, the third inductor L3, the second capacitor C2 and the third capacitor C3 release electric energy to be provided to the load R.
Fig. 5 and 6 are main operation waveforms of the inverter provided in the present embodiment in one operation period, in which,
Figure SMS_3
for the voltage across the first switching tube S1, < >>
Figure SMS_5
For the voltage of the first capacitor C1, +.>
Figure SMS_7
For the voltage of the second capacitor C2, +.>
Figure SMS_2
For the voltage of the third capacitor C3 +.>
Figure SMS_4
For the voltage of the load R>
Figure SMS_6
For the current of the first inductance L1, +.>
Figure SMS_8
For the current of the second inductance L2, +.>
Figure SMS_1
Is the current of the third inductance L3. During charge and discharge, the voltage of the first capacitor C1, the voltage of the second capacitor C2, and the voltage of the third capacitor C3 are almost constant, and thus the ripple is negligible.
When the converter is in steady state, the following relationship can be obtained in steady state by applying the volt-second balance to the first inductance L1, the second inductance L2, the third inductance L3:
Figure SMS_9
；
Figure SMS_10
；
Figure SMS_11
；
in the method, in the process of the invention,
Figure SMS_12
is the voltage of the power VIN>
Figure SMS_13
For the duty cycle of the first switching tube S1, < >>
Figure SMS_14
For the voltage of the first capacitor C1, +.>
Figure SMS_15
For the voltage of the second capacitor C2, +.>
Figure SMS_16
For the voltage of the third capacitor C3 +.>
Figure SMS_17
Is the voltage of the load R.
The voltages of the first capacitor C1, the second capacitor C2, and the third capacitor C3 can be obtained by the above method, namely:
Figure SMS_18
；
Figure SMS_19
；
in the method, in the process of the invention,
Figure SMS_20
is the voltage of the power VIN>
Figure SMS_21
For the duty cycle of the first switching tube S1, < >>
Figure SMS_22
For the voltage of the first capacitor C1, +.>
Figure SMS_23
For the voltage of the second capacitor C2, +.>
Figure SMS_24
Is the voltage of the third capacitor C3.
Further gain ratio of input voltage and output voltage can be obtained
Figure SMS_25
Voltage stress of the first diode D1, the second diode D2 and the switching tube:
Figure SMS_26
；
Figure SMS_27
；/>
Figure SMS_28
；
in the method, in the process of the invention,
Figure SMS_29
drain-source voltage of the first switching tube S1, < >>
Figure SMS_30
Is the voltage of the power VIN>
Figure SMS_31
For the voltage of the load R>
Figure SMS_32
For the duty cycle of the first switching tube S1, < >>
Figure SMS_33
Is the voltage of the first diode D1, +.>
Figure SMS_34
Is the voltage of the second diode D2.
It can be obtained that, under the same duty cycle, the voltage gain of the converter provided by the embodiment is twice that of the conventional converter, and the voltage stress of the first switching tube S1, the first diode D1 and the second diode D2 of the converter provided by the embodiment is low and half that of the conventional converter; the converter realizes high voltage gain and simultaneously enables the first switching tube S1, the first diode D1 and the second diode D2 to bear lower voltage stress, so that the transmission efficiency of the converter is ensured. And under the condition that no additional filtering device is arranged, the input current and the output current of the converter provided by the embodiment are continuous, and the input end and the output end of the converter provided by the embodiment are grounded.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.

Claims (2)

1. The boost converter is characterized by comprising a first boost module, a second boost module and an output module;
the second boost module comprises a switching network (30), the switching network (30) comprising a first diode (D1), a second diode (D2), a second capacitor (C2), a third capacitor (C3) and a second inductance (L2); the cathode of the first diode (D1) is connected with the first end of the second inductor (L2) and the second end of the second capacitor (C2), and the second end of the second inductor (L2) is connected with the first end of the third capacitor (C3) and the anode of the second diode (D2); the first end of the second capacitor (C2) and the cathode of the second diode (D2) are respectively connected with the second end of the first switching tube (S1);
the first boosting module comprises a first switching tube (S1), and when the first switching tube (S1) is conducted, the first diode (D1) and the second diode (D2) are cut off; when the first switching tube (S1) is turned off, the first diode (D1) and the second diode (D2) are turned on;
the output module is connected with the second boosting module;
the second boosting module further comprises a second boosting unit (20), a first end of the second boosting unit (20) is connected with the first boosting module, and a second end of the second boosting unit (20) is connected with an anode of the first diode (D1);
the second boosting module further comprises a third boosting unit (40), a first end of the third boosting unit (40) is connected with a second end of the third capacitor (C3), and a second end of the third boosting unit (40) is connected with the output module;
the first boosting module further comprises a first boosting unit (10), wherein the first end of the first boosting unit (10) is connected with the positive electrode of the power supply (VIN), the second end of the first boosting unit (10) is connected with the first end of the first switching tube (S1), and the second end of the first switching tube (S1) is connected with the negative electrode of the power supply (VIN);
the output module comprises an output capacitor (Co), a first end of the output capacitor (Co) is connected with a cathode of the second diode (D2), and a second end of the output capacitor (Co) is connected with a second end of the third boosting unit (40); the load (R) is connected in parallel with two ends of the output capacitor (Co);
the first boosting unit (10) is a first inductor (L1);
the second boosting unit (20) is a first capacitor (C1);
the third boosting unit (40) is a third inductor (L3);
the boost converter comprises a first working mode and a second working mode in one switching period;
first working mode: the first switch tube (S1) is conducted, the first diode (D1) and the second diode (D2) are cut off, and the power supply (VIN) charges the first inductor (L1); the first capacitor (C1) charges the second capacitor (C2), the third capacitor (C3) and the second inductor (L2); an output capacitor (Co) supplies power to the load (R), and the output capacitor (Co) charges the third inductor (L3);
second mode of operation: the first switch tube (S1) is cut off, the first diode (D1) and the second diode (D2) are conducted, and the power supply (VIN), the first inductor (L1) and the second capacitor (C2) charge the first capacitor (C1); the second inductor (L2), the third inductor (L3), the second capacitor (C2) and the third capacitor (C3) supply power to the load (R);
the second capacitor (C2) and the third capacitor (C3) are all nonpolar capacitors.
2. The boost converter of claim 1 wherein the first switching tube (S1) is a field effect tube, a first end of the first switching tube (S1) is a drain of the field effect tube, a second end of the first switching tube (S1) is a source of the field effect tube, and a third end of the first switching tube (S1) is a gate of the field effect tube.
CN202310222167.1A 2023-03-09 2023-03-09 Boost converter Active CN115940641B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310222167.1A CN115940641B (en) 2023-03-09 2023-03-09 Boost converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310222167.1A CN115940641B (en) 2023-03-09 2023-03-09 Boost converter

Publications (2)

Publication Number Publication Date
CN115940641A CN115940641A (en) 2023-04-07
CN115940641B true CN115940641B (en) 2023-06-09

Family

ID=85834008

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310222167.1A Active CN115940641B (en) 2023-03-09 2023-03-09 Boost converter

Country Status (1)

Country Link
CN (1) CN115940641B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116111844A (en) * 2023-04-13 2023-05-12 深圳市恒运昌真空技术有限公司 Dual-switch converter and control method thereof
CN116169882B (en) * 2023-04-26 2023-07-25 深圳市恒运昌真空技术有限公司 High-gain boost converter
CN116488456B (en) * 2023-06-21 2024-08-02 深圳市恒运昌真空技术股份有限公司 Voltage conversion circuit and voltage converter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105915047A (en) * 2016-05-06 2016-08-31 上海交通大学 Novel direct current boosted circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10084384B1 (en) * 2015-04-22 2018-09-25 Sridhar Kotikalapoodi Method and apparatus for switched capacitor and inductor based-switch mode power supply
CN107689730A (en) * 2016-08-04 2018-02-13 京东方科技集团股份有限公司 DC-DC converter, boosting unit, electric automobile and battery backup system
CN208849669U (en) * 2018-06-30 2019-05-10 华南理工大学 A kind of quasi- source Z boost chopper of stacked
CN109861524B (en) * 2018-12-17 2020-09-25 北京交通大学 High-gain boost DC converter for fuel cell power generation
CN113783418B (en) * 2021-09-08 2023-09-29 福州大学 Low-input current ripple high-gain soft-switching direct-current converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105915047A (en) * 2016-05-06 2016-08-31 上海交通大学 Novel direct current boosted circuit

Also Published As

Publication number Publication date
CN115940641A (en) 2023-04-07

Similar Documents

Publication Publication Date Title
CN115940641B (en) Boost converter
CN108599564B (en) Capacitor voltage discontinuous mode capacitor series connection type staggered parallel Bcuk PFC converter
US10211734B1 (en) Bidirectional DC-DC converter
CN110224601B (en) High-gain Boost converter based on three-winding coupling inductor and working method thereof
CN109309448B (en) Wide-input wide-output Cuk DC-DC converter
CN112701923B (en) High-gain Zeta DC-DC converter
CN108988634B (en) Three-phase interleaved bidirectional large-transformation-ratio DCDC converter and control method thereof
CN112713766B (en) High-gain Cuk DC-DC converter
CN109450260A (en) A kind of capacitance series formula crisscross parallel circuit of reversed excitation
KR20090044137A (en) Transformer-less boost converter
CN110829837B (en) Low-voltage stress ZVS high-gain Boost converter
CN115765446A (en) Soft switch high-boost converter
CN215934730U (en) DC-DC converter with high step-up ratio
CN109274270A (en) A kind of novel expansible Sepic DC-DC converter
CN109274267A (en) A kind of novel expansible Zeta DC-DC converter
CN103490635B (en) A kind of modified model H bridge buck-boost DC converter and control method thereof
CN210490731U (en) High step-up ratio DC conversion device
CN113285596B (en) Buck-boost direct current converter and control method thereof
CN113630009B (en) High-performance non-isolated bidirectional direct current converter and control method thereof
CN113890342A (en) Multi-input high-reliability Sepic DC-DC converter with consistent capacitance and current
CN114285279A (en) High-gain boost converter
CN211791275U (en) Cascaded buck-boost DC-DC converter
CN112953205A (en) Improved ripple-free buck-boost DC-DC converter
CN116388560B (en) High-gain bidirectional converter
CN114006530B (en) Coupled quasi-Z source direct current converter

Legal Events

Date Code Title Description
PB01 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
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 518102 Room 101, 201, 301, Building B, Functional Support Area, Taohuayuan Zhichuang Town, Tiegang Community, Xixiang Street, Baoan District, Shenzhen, Guangdong Province

Patentee after: Shenzhen Hengyunchang Vacuum Technology Co.,Ltd.

Address before: Room 101, 201, 301, Building B, Functional Supporting Area, Taohuayuan Zhichuang Town, Tiegang Community, Xixiang Street, Baoan District, Shenzhen, Guangdong 518100

Patentee before: SHENZHEN HENGYUNCHANG VACUUM TECHNOLOGY CO.,LTD.