CN112039363B - Boost type voltage-free drop switch capacitor inverter - Google Patents
Boost type voltage-free drop switch capacitor inverter Download PDFInfo
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- CN112039363B CN112039363B CN202010988922.3A CN202010988922A CN112039363B CN 112039363 B CN112039363 B CN 112039363B CN 202010988922 A CN202010988922 A CN 202010988922A CN 112039363 B CN112039363 B CN 112039363B
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- 238000010586 diagram Methods 0.000 description 8
- 238000010248 power generation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/073—Charge pumps of the Schenkel-type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/073—Charge pumps of the Schenkel-type
- H02M3/077—Charge pumps of the Schenkel-type with parallel connected charge pump stages
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Abstract
The invention relates to a boost type voltage-free drop switch capacitor inverter which comprises a full-bridge inversion module, a first capacitor charge-discharge module, a second capacitor charge-discharge module and a direct-current input power Vin; the full-bridge inverter module consists of a Mos tube S1, a Mos tube S2, a Mos tube S3, a Mos tube S4, a load resistor R1 and an inductor L1; the first capacitor charging and discharging module consists of a diode D1, a capacitor C1, a Mos tube S5, a Mos tube S7 and a direct-current input power Vin; the second capacitor charge-discharge module consists of a diode D2, a capacitor C2, a Mos tube S6, a Mos tube S8 and a direct-current input power Vin. The invention provides a targeted pulse sequence by analyzing the circuit structures under different time states, effectively solves the problem of output voltage drop during the charging of the switched capacitor in the boosting process, and has the advantages of simple structure, few electronic devices, flexible and changeable control and wide application range.
Description
Technical Field
The invention relates to the technical field of power electronic application, in particular to a boost type non-voltage drop switch capacitor inverter.
Background
With the increasing shortage of main energy sources such as petroleum, coal, natural gas and the like, new energy source grid-connected power generation systems are in force. Among them, the roles of photovoltaic power generation and fuel cell power generation are important, and the development and utilization of new energy are more and more emphasized by people. In addition, since the inverter is widely used in the field of inversion of a dc power supply including a dc generator, a battery, a solar cell, and a fuel cell, the inverter is of great importance in the field of development and utilization of new energy.
In a new energy grid-connected power generation system, a traditional Boost converter is one of the most common Boost topologies, but the working range of the duty ratio is limited due to the influence of the parasitic parameters of components and the nonlinear characteristics of the converter. Therefore, in practical application, the output voltage gain of the conventional Boost converter is limited, which often cannot meet the requirement of high Boost, and the Boost converter has the problems of large ripple, low efficiency and the like.
In order to improve the voltage gain and the working performance of the high-gain converter, a plurality of domestic and foreign experts and scholars are dedicated to the research work of the high-gain converter, and a switching boost converter realized based on parallel connection of a plurality of switching capacitor networks is provided for the requirement of the high-gain converter in a new energy power generation system. In the converter, the capacitor voltages in each switch capacitor network are equal in size, and the accumulation of the capacitor voltages of a plurality of networks is realized in a parallel connection mode, so that a larger output voltage is realized. The topological structure is simplified, the system cost is reduced, the application range is widened, but the problem of output voltage drop still exists in the charging process of the switched capacitor; some scholars design and use electronic devices such as inductors and diodes to construct an inductance energy storage and release circuit structure, so that the effect is achieved to a certain extent, a discharge loop is constructed, the output voltage still falls, and the designed circuit structure is complex.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems, the boost type non-voltage drop switch capacitor inverter provided by the invention adopts a simple alternate charging and discharging structure, and can effectively solve the voltage drop problem on the basis of simple structure and simple control.
In order to achieve the purpose, the invention provides the following technical scheme: the invention provides a boost type voltage-free drop switch capacitor inverter which comprises a full-bridge inversion module, a first capacitor charge-discharge module, a second capacitor charge-discharge module and a direct-current input power Vin;
the full-bridge inverter module comprises a Mos tube S1 and a Mos tube S3, the Mos tube S1 and the Mos tube S3 are connected in series and then connected in parallel with the Mos tube S2 and the Mos tube S4, a resistor R1 is connected between the connecting end of the Mos tube S1 and the Mos tube S3 and between the connecting end of the Mos tube S2 and the connecting end of the Mos tube S4, and the common end of the drains of the Mos tube S1 and the Mos tube S2 is connected with the negative electrode of an inductor L1;
the first capacitor charging and discharging module comprises a diode D1, a capacitor C1 and a Mos tube S5 which are connected in series to form a loop, wherein the source electrode of the Mos tube S5 is connected with the common end of the negative electrode of the capacitor C1 and is connected with the drain electrode of the Mos tube S7;
the second capacitor charging and discharging module comprises a diode D2, a capacitor C2 and a Mos tube S6 which are connected in series to form a loop, wherein the source electrode of the Mos tube S6 is connected with the common end of the negative electrode of the capacitor C2 and is connected with the drain electrode of the Mos tube S8;
the anode of the diode D1 and the common end of the drain of the Mos tube S5, and the anode of the diode D2 and the common end of the drain of the Mos tube S6 are connected with the anode of a direct-current input power Vin; the negative electrode of the direct current input power Vin is connected with the source electrode common end of the Mos tube S3 and the Mos tube S4; the anode of the capacitor C1 is connected with the common end of the cathode of the diode D1 and the drain of the Mos tube S9; the common end of the anode of the capacitor C2, which is connected with the cathode of the diode D2, is connected with the drain electrode of the Mos tube S10, and the common end of the source electrode of the Mos tube S10, which is connected with the source electrode of the Mos tube S9, is connected with the anode of the inductor L1; the source electrode of the Mos tube S7 is connected with the common end of the source electrode of the Mos tube S8 and is connected with the negative electrode of the direct current input power Vin.
The working principle is as follows:
a first state: charging in parallel; the Mos tube S7 and the Mos tube S8 are connected, and the other Mos tubes are disconnected;
the second temporal state: the Mos tube S1 and the Mos tube S4 work at the power frequency of 50Hz, the Mos tube S2 and the Mos tube S3 are disconnected, and in the previous half period, the first capacitor charge-discharge module and the second capacitor charge-discharge module are alternately charged and discharged in a high-frequency mode;
when the first capacitor charge-discharge module is charged and the second capacitor charge-discharge module is discharged: the Mos tube S5 and the Mos tube S9 are disconnected, and the Mos tube S7 is closed; the Mos tube S6 and the Mos tube S10 are closed, and the Mos tube S8 is opened;
when the first capacitor charge-discharge module discharges and the second capacitor charge-discharge module charges: the Mos tube S5 and the Mos tube S9 are closed, and the Mos tube S7 is opened; the Mos tube S6 and the Mos tube S10 are disconnected, and the Mos tube S8 is closed;
the third tense: the Mos tube S2 and the Mos tube S3 work at the power frequency of 50Hz, the Mos tube S1 and the Mos tube S4 are disconnected, the first capacitor charge-discharge module and the second capacitor charge-discharge module alternately charge and discharge in a high-frequency mode in the later half period, and the working principle is as the second time state;
the Mos tube S5 and the Mos tube S9 are synchronously turned off and closed, and the Mos tube S6 and the Mos tube S10 are synchronously turned off and closed; except for the first time state, when the Mos tube S5 and the Mos tube S9 are closed, the Mos tube S6 and the Mos tube S10 are disconnected, and vice versa, which are mutually opposite.
Further, the Mos tube S1, the Mos tube S2, the Mos tube S3, the Mos tube S4, the Mos tube S5, the Mos tube S6, the Mos tube S7, the Mos tube S8, the Mos tube S9 and the Mos tube S10 are all antiparallel diodes, and have bidirectional conduction and freewheeling capabilities.
Further, the capacitor C1 and the capacitor C2 are connected in series and parallel with the dc input power Vin, and are charged in parallel first and then discharged in series, thereby forming a boosting effect. When the Mos tube S7 and the Mos tube S8 are closed and the other Mos tubes are disconnected, the capacitor C1 and the capacitor C2 are charged in parallel with the direct-current input power Vin, and the voltage value is equal to Vin; when the Mos tube S7 and the Mos tube S8 are disconnected and the Mos tube S5, the Mos tube S6, the Mos tube S9 and the Mos tube S10 are closed, the capacitors C1 and C2 discharge in series with the dc input power Vin, which corresponds to twice the boost voltage.
Further, the first capacitor charge-discharge module and the second capacitor charge-discharge module are charged and discharged alternately, so that the output voltage is prevented from falling.
Further, the Mos tube S1, the Mos tube S2, the Mos tube S3, and the Mos tube S4 operated at power frequency, and the Mos tube S5, the Mos tube S6, the Mos tube S7, and the Mos tube S8 operated at high frequency.
The invention has the beneficial effects that: the invention provides a boost type non-voltage drop switch capacitor inverter, and provides a method for efficiently avoiding output voltage drop, a targeted pulse sequence is given by analyzing circuit structures in different time states, and a capacitor module is controlled to alternately charge and discharge; the electronic control system has the characteristics of simple and clear structure, small quantity of electronic devices, flexible and variable control, wide application range and the like.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a circuit diagram of the present invention;
FIG. 2 is a parallel charging circuit diagram for a first temporal state of the present invention;
FIG. 3 is a circuit diagram of the charging of the first capacitor charge and discharge module and the discharging of the second capacitor charge and discharge module of the first half cycle of the present invention;
FIG. 4 is a circuit diagram of the discharge of the first capacitor charge and discharge module and the charge of the second capacitor charge and discharge module during the first half cycle of the present invention;
FIG. 5 is a circuit diagram of the first capacitor charge and discharge module charging and the second capacitor charge and discharge module discharging during the second half cycle of the present invention;
FIG. 6 is a circuit diagram of the discharge of the first capacitor charge-discharge module and the charge of the second capacitor charge-discharge module for the second half cycle of the present invention;
FIG. 7 is a schematic diagram of the switching sequence of the full bridge inverter module of the present invention;
FIG. 8 is a schematic diagram of a switching sequence of the switched capacitor module of the present invention;
fig. 9 is a graph of the output voltage waveform of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, the boost type no-voltage-drop switch capacitor inverter provided by the present invention includes a full-bridge inverter module, a first capacitor charge-discharge module, a second capacitor charge-discharge module, and a dc input power Vin;
the full-bridge inverter module comprises a Mos tube S1 and a Mos tube S3, the Mos tube S1 and the Mos tube S3 are connected in series and then connected in parallel with the Mos tube S2 and the Mos tube S4, a resistor R1 is connected between the connecting end of the Mos tube S1 and the Mos tube S3 and between the connecting end of the Mos tube S2 and the connecting end of the Mos tube S4, and the common end of the drains of the Mos tube S1 and the Mos tube S2 is connected with the negative electrode of an inductor L1;
the first capacitor charging and discharging module comprises a diode D1, a capacitor C1 and a Mos tube S5 which are connected in series to form a loop, wherein the source electrode of the Mos tube S5 is connected with the common end of the negative electrode of the capacitor C1 and is connected with the drain electrode of the Mos tube S7;
the second capacitor charging and discharging module comprises a diode D2, a capacitor C2 and a Mos tube S6 which are connected in series to form a loop, wherein the source electrode of the Mos tube S6 is connected with the common end of the negative electrode of the capacitor C2 and is connected with the drain electrode of the Mos tube S8;
the anode of the diode D1 and the common end of the drain of the Mos tube S5, and the anode of the diode D2 and the common end of the drain of the Mos tube S6 are connected with the anode of a direct-current input power Vin; the negative electrode of the direct current input power Vin is connected with the source electrode common end of the Mos tube S3 and the Mos tube S4; the anode of the capacitor C1 is connected with the common end of the cathode of the diode D1 and the drain of the Mos tube S9; the common end of the anode of the capacitor C2, which is connected with the cathode of the diode D2, is connected with the drain electrode of the Mos tube S10, and the common end of the source electrode of the Mos tube S10, which is connected with the source electrode of the Mos tube S9, is connected with the anode of the inductor L1; the source electrode of the Mos tube S7 is connected with the common end of the source electrode of the Mos tube S8 and is connected with the negative electrode of the direct current input power Vin.
As shown in fig. 1, Mos tube S1, Mos tube S2, Mos tube S3, Mos tube S4, Mos tube S5, Mos tube S6, Mos tube S7, Mos tube S8, Mos tube S9, and Mos tube S10 are all antiparallel diodes, and have bidirectional conduction and freewheeling capabilities.
As shown in fig. 1 and 7-9, the capacitor C1 and the capacitor C2 are connected in series and parallel with the dc input power Vin, and are charged in parallel first and then discharged in series, thereby achieving the boosting effect. When the Mos tube S7 and the Mos tube S8 are closed and the other Mos tubes are disconnected, the capacitor C1 and the capacitor C2 are charged in parallel with the direct-current input power Vin, and the voltage value is equal to Vin; when the Mos tube S7 and the Mos tube S8 are disconnected and the Mos tube S5, the Mos tube S6, the Mos tube S9 and the Mos tube S10 are closed, the capacitors C1 and C2 discharge in series with the dc input power Vin, which corresponds to twice the boost voltage.
In order to avoid output voltage drop, the first capacitor charge-discharge module and the second capacitor charge-discharge module alternately discharge, and a Mos tube S1, a Mos tube S2, a Mos tube S3 and a Mos tube S4 of the full-bridge inverter module work at the power frequency of 50Hz within 0.02S; in the first half period, the Mos tube S1 and the Mos tube S4 are conducted, and in the second half period, the Mos tube S2 and the Mos tube S3 are conducted; in contrast, the first and second capacitor charge-discharge modules operate in a high frequency manner.
The following brief description of the implementation of the working circuit in three states with reference to the drawings:
as shown in fig. 2, in this case, in the preparation mode of the first time state of the circuit, the Mos transistor S7 and the Mos transistor S8 in the first and second capacitor charge-discharge modules are closed, all the other Mos transistors are disconnected, the diodes D1 and D2 are turned on in the forward direction, the dc input power Vin charges the capacitors C1 and C2, and preparation is made for serial discharge of the capacitor C2 and the dc input power Vin of the second capacitor charge-discharge module in the second time state.
As shown in fig. 3, after the first time-state capacitors C1 and C2 are prepared for charging, the circuit enters a working mode, in the first half period of the first 0.02S period, driving signals are provided to the gates of the Mos transistor S1 and the Mos transistor S4, at this time, the Mos transistor S1 and the Mos transistor S4 are turned on, the Mos transistor S8 in the last time state is turned off at the first time, and at the same time, the gates of the Mos transistor S6 and the Mos transistor S10 in the second capacitor charge-discharge module receive the driving signals and are turned on, at this time, the output voltage is 2Vin, the Mos transistor S7 in the first capacitor charge-discharge module is still turned on, and the charging state is maintained.
As shown in fig. 4, when the Mos transistor S7 experiences a first time state, the Mos transistor S7 is turned off at a first time after the process of fig. 3, the charging process is ended, the voltage at both ends of the capacitor is equal to the dc input voltage, the Mos transistor S5 and the Mos transistor S9 receive the driving signal to be turned on at the first time when the Mos transistor S7 is turned off, the two transistors and the Mos transistor S7 are in an opposite state, the first capacitor charging and discharging module ends the charging and discharging process, the capacitor C1 is discharged in series with the dc input power Vin, the output voltage is 2Vin, the Mos transistor S10 and the Mos transistor S6 of the second capacitor charging and discharging module remove the driving signal, and the Mos transistor S8 is turned on, and the second capacitor charging and discharging module enters the charging state.
The first capacitor and the second capacitor charge-discharge module work in the first half period of the cycle at high frequency according to the mode.
As shown in fig. 5, when the circuit enters the third time state, the circuit enters the second half cycle working mode of 0.02S, and the driving signals are provided to the gates of the Mos transistor S2 and the Mos transistor S3, and at this time, the Mos transistor S2 and the Mos transistor S3 are turned on, so that the first capacitor charging and discharging module charges, and when the second capacitor charging and discharging module discharges: the Mos tube S5 and the Mos tube S9 are disconnected, and the Mos tube S7 is closed; the Mos tube S6 and the Mos tube S10 are closed, and the Mos tube S8 is opened; at this time, the DC input power Vin and the capacitor C2 are serially discharged, and the output voltage is-2 Vin.
As shown in fig. 6, when the first capacitor charge-discharge module discharges, and the second capacitor charge-discharge module charges: the Mos tube S5 and the Mos tube S9 are closed, and the Mos tube S7 is opened; the Mos tube S6 and the Mos tube S10 are disconnected, and the Mos tube S8 is closed; at this time, the DC input power Vin and the capacitor C1 are serially discharged, and the output voltage is-2 Vin. The specific behavior pattern is shown in dashed lines.
The invention provides a boost type non-voltage drop switch capacitor inverter, and provides a method for efficiently avoiding output voltage drop, a targeted pulse sequence is given by analyzing circuit structures in different time states, and a capacitor module is controlled to alternately charge and discharge; the electronic control system has the characteristics of simple and clear structure, small quantity of electronic devices, flexible and variable control, wide application range and the like.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A step-up no-voltage drop switch capacitor inverter is characterized in that: the direct current power supply comprises a full-bridge inversion module, a first capacitor charge-discharge module, a second capacitor charge-discharge module and a direct current input power Vin;
the full-bridge inverter module comprises a Mos tube S1, a Mos tube S2, a Mos tube S3 and a Mos tube S4, the Mos tubes S1 and S3 are connected in series, the Mos tubes S2 and S4 are connected in series, and a series branch of the Mos tubes S1 and S3 is connected in parallel with a series branch of the Mos tubes S2 and S4; a resistor R1 is connected between the connecting end of the Mos tube S1 and the Mos tube S3 and between the connecting end of the Mos tube S2 and the Mos tube S4, and the common end of the drains of the Mos tube S1 and the Mos tube S2 is connected with one end of an inductor L1;
the first capacitor charging and discharging module comprises a diode D1, a capacitor C1 and a Mos tube S5 which are connected in series to form a loop, wherein the source electrode of the Mos tube S5 is connected with the negative electrode of the capacitor C1, and the common end of the source electrode of the Mos tube S5 and the negative electrode of the capacitor C1 is connected with the drain electrode of the Mos tube S7;
the second capacitor charging and discharging module comprises a diode D2, a capacitor C2 and a Mos tube S6 which are connected in series to form a loop, the source electrode of the Mos tube S6 is connected with the negative electrode of the capacitor C2, and the common end of the source electrode of the Mos tube S6 and the negative electrode of the capacitor C2 is connected with the drain electrode of the Mos tube S8;
the common end of the anode of the diode D1 and the drain of the Mos tube S5, and the common end of the anode of the diode D2 and the drain of the Mos tube S6 are both connected with the anode of the direct-current input power Vin; the negative electrode of the direct current input power Vin is connected with the source electrode common end of the Mos tube S3 and the Mos tube S4; the anode of the capacitor C1 is connected with the cathode of the diode D1, and the common end of the anode of the capacitor C1 and the cathode of the diode D1 is connected with the drain of the Mos transistor S9; the anode of the capacitor C2 is connected with the cathode of the diode D2, the common end of the anode of the capacitor C2 and the cathode of the diode D2 is connected with the drain electrode of the Mos tube S10, the source electrode of the Mos tube S10 is connected with the source electrode of the Mos tube S9, and the common ends of the source electrode of the Mos tube S10 and the source electrode of the Mos tube S9 are connected with the other end of the inductor L1; the source electrode of the Mos tube S7 is connected with the source electrode of the Mos tube S8, and the common end of the source electrode of the Mos tube S7 and the source electrode of the Mos tube S8 is connected with the negative electrode of the direct-current input power Vin.
2. A step-up, no-voltage-drop, switched-capacitor inverter as claimed in claim 1, wherein: and the Mos tube S1, the Mos tube S2, the Mos tube S3, the Mos tube S4, the Mos tube S5, the Mos tube S6, the Mos tube S7, the Mos tube S8, the Mos tube S9 and the Mos tube S10 are all connected with diodes in an anti-parallel mode.
3. A step-up, no-voltage-drop, switched-capacitor inverter as claimed in claim 1, wherein: the capacitor C1 and the capacitor C2 are connected with the direct current input power Vin in series-parallel, firstly charged in parallel and then discharged in series.
4. A step-up, no-voltage-drop, switched-capacitor inverter as claimed in claim 1, wherein: the first capacitor charge-discharge module and the second capacitor charge-discharge module are charged and discharged alternately.
5. A step-up, no-voltage-drop, switched-capacitor inverter as claimed in claim 1, wherein: the Mos tube S1, the Mos tube S2, the Mos tube S3 and the Mos tube S4 work in a power frequency state, and the Mos tube S5, the Mos tube S6, the Mos tube S7 and the Mos tube S8 work in a high-frequency state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010988922.3A CN112039363B (en) | 2020-09-18 | 2020-09-18 | Boost type voltage-free drop switch capacitor inverter |
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| CN202010988922.3A CN112039363B (en) | 2020-09-18 | 2020-09-18 | Boost type voltage-free drop switch capacitor inverter |
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| CN112039363B true CN112039363B (en) | 2022-04-26 |
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| CN108566108B (en) * | 2018-04-20 | 2019-10-22 | 厦门大学 | A kind of nine electrical level inverter of two-stage type based on bridge type multi-electrical level switching capacity module |
| CN108683352B (en) * | 2018-06-14 | 2019-11-22 | 厦门大学 | A kind of three level self-balancing inverters based on bridge switch capacitance module |
| CN110071651B (en) * | 2019-06-13 | 2023-05-12 | 河北工业大学 | Non-isolated boost inverter circuit with symmetrical structure |
| CN111049403B (en) * | 2019-12-18 | 2022-11-01 | 南京理工大学 | Nine-level inverter of buck-boost type switched capacitor |
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Application publication date: 20201204 Assignee: Changzhou Ruixinteng Microelectronics Co.,Ltd. Assignor: CHANGZHOU University Contract record no.: X2023980054127 Denomination of invention: A Boost type Voltage Drop Free Switched Capacitor Inverter Granted publication date: 20220426 License type: Common License Record date: 20231227 |
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