CN208767993U - A kind of electrical level inverter using switched-capacitor circuit - Google Patents
A kind of electrical level inverter using switched-capacitor circuit Download PDFInfo
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- CN208767993U CN208767993U CN201821590655.9U CN201821590655U CN208767993U CN 208767993 U CN208767993 U CN 208767993U CN 201821590655 U CN201821590655 U CN 201821590655U CN 208767993 U CN208767993 U CN 208767993U
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Abstract
The utility model relates to a kind of electrical level inverter using switched-capacitor circuit, which includes a DC power supply, a switching capacity group and a full-bridge switch group.Wherein switching capacity group is made of three power switch tubes, two capacitor cells and six uncontrollable diodes, full-bridge switch group is conventional full bridge structure, it is connected again with full-bridge switch group input terminal after DC power supply and switching capacity group are in parallel, the first bridge arm midpoint and the second bridge arm midpoint of full-bridge switch group are the output end of inverter.Seven electrical level inverters of the utility model only need the voltage of the i.e. exportable seven kinds of level of a DC power supply, compared with seven electrical level inverters of traditional structure under identical output voltage grade, greatly reduce the quantity of device for power switching, reduce switching loss, improve output waveform quality, the complexity for reducing device effectively reduces the manufacture and maintenance cost of inverter, improves the efficiency of inverter and the reliability of system.
Description
Technical field
The utility model relates to power electronics field, a kind of electrical level inverter using switched-capacitor circuit.
Background technique
Currently, multi-electrical level inverter has become the important research hot spot that electric and electronic power transformation field is concerned,
It is widely used in middle high-pressure speed regulation field and flexible AC transmitting system.It has the advantage that total harmonic wave of output voltage
Distortion is substantially reduced with the increase of level number；Under conditions of output phase homogenous quantities voltage waveform, switching loss is small, switching frequency
It is lower；Compared with two level current transformers, under the voltage class of phase, du/dt is obviously reduced, in high-voltage large-capacity motor driven
In, rotor can be effectively prevent to wind insulation breakdown, while improving the emi characteristics of device.
Current main multi-electrical level inverter includes that how electric diode clamping formula multi-electrical level inverter, the clamped formula of striding capacitance be
Flat inverter and Cascade H bridge type multi-electrical level inverter.When needing to realize higher voltage class and number of levels, diode is embedding
Catching diode device or clamped capacitor needed for position formula multi-electrical level inverter and the clamped formula multi-electrical level inverter of striding capacitance
Device count will sharply increase, and there is a problem of capacitor voltage balance control difficulty.And Cascade H bridge type multi-electrical level inverter
It is easier to realize biggish number of levels and voltage class.But with the increase of voltage class, join H bridge type multi-level inverse conversion
The cascade number of unit of device also will increase, and switching device quantity increases therewith.For example, seven electrical level inverter of traditional cascaded H-bridges,
12 power switch tubes are just needed when realizing seven level voltage of output.Therefore, how to be obtained by less switching device number
More number of levels and higher voltage class become always the hot spot in multi-electrical level inverter research field.
With the continuous development and THE UPFC of the new energy power generation technologies such as wind power generation, photovoltaic power generation
(UPFC), the continuous demand of the power equipments such as active power filter in the power system, high efficiency and high quality output waveform
Inverter be increasingly taken seriously, therefore just come into being with the novel multi-electrical level inverter of switched-capacitor circuit.
Summary of the invention
The purpose of this utility model is: the shortcomings that being directed to traditional multi-level inverter, proposes a kind of using switching capacity electricity
Seven electrical level inverters on road reduce switching device number under identical output voltage grade, improve inverter efficiency, simplify inversion
The structure of device saves system cost.
The technical scheme for implementing the utility model is as follows: a kind of seven electrical level inverters, by a DC power supply, an open pipe
Capacitance group and a full-bridge switch group are constituted；After DC power supply is in parallel with switching capacity group again with the both ends phase of full-bridge switch group
Even.
The switching capacity group of the utility model is by first capacitor, the second capacitor, the 5th switching tube, the 6th switching tube, the 7th
Switching tube, the 5th diode, the 6th diode, the 7th diode, the 8th diode, the 9th diode, the tenth diode are constituted.
The anode of 8th diode of the utility model, the collector of the anode of the 9th diode and the 5th switching tube and straight
Stream positive pole is connected in first node；Cathode, the collector of the 7th switching tube and the anode of first capacitor of 9th diode
It is connected in second node；The anode of the emitter of 5th switching tube, the cathode of first capacitor and the tenth diode is connected in third
Node；The cathode of 8th diode and the anode of the second capacitor are connected in fourth node；The collector of 6th switching tube, the 12nd
The cathode of the cathode of pole pipe, the emitter of the 7th switching tube and the second capacitor is connected in the 5th node；The transmitting of 6th switching tube
Pole and DC power cathode are connected in the 6th node.
The anode of 5th diode of the utility model is connected with the emitter of the 5th switching tube, the cathode of the 5th diode
It is connected with the 5th switch pipe collector；The anode of 6th diode is connected with the emitter of the 6th switching tube, the six or two pole
The cathode of pipe is connected with the 6th switch pipe collector；The anode of 7th diode is connected with the emitter of the 7th switching tube,
The cathode of 7th diode is connected with the 7th switch pipe collector.
When the first capacitor of the switching capacity group of the utility model and the second capacitor are full of energy, voltage thereon with it is described
Voltage on DC power supply is equal.
The effect of 9th diode of the switching capacity group of the utility model is the electric current reverse flow limited in first capacitor
To DC power supply, the effect of the eight or two pole is reverse flowed to DC power supply for the electric current on the second capacitor of limitation.
The full-bridge switch group of the utility model by first switch tube, second switch, third switching tube, the 4th switching tube,
First diode, the second diode, third diode, the 4th diode are constituted.
The collector of the first switch tube of the utility model and the collector of second switch are connected in the 7th node, and first
The emitter of switching tube and the collector of third switching tube are connected in the 8th node, the emitter of third switching tube and the 4th switch
The emitter of pipe is connected in the 9th node, and the collector of the emitter of second switch and the 4th switching tube is connected in protelum
Point.
The anode of the first diode of the utility model is connected with the emitter of first switch tube, the cathode of first diode
It is connected with first switch pipe collector, the anode of second diode is connected with the emitter of second switch, the two or two pole
The cathode of pipe is connected with second switch pipe collector；The anode of the third diode is connected with the emitter of third switching tube,
The cathode of third diode is connected with third switch pipe collector；The transmitting of the anode and the 4th switching tube of 4th diode
Extremely it is connected, the cathode of the 4th diode is connected with the 4th switch pipe collector.
7th node of the full-bridge switch group of the utility model, the 9th node respectively with the fourth node of switching capacity group,
6th node is connected, and the 8th node and protelum point are respectively inverter output positive and negative terminal.
The first switch tube of the utility model, second switch, third switching tube, the 4th switching tube, the 5th switching tube,
Six switching tubes, the 7th switching tube can be using MOSFET metal oxide layer semiconductcor field effect transistos, PowerMosfet electricity
It is any one in the deep knot high pressure field-effect tube of field of force effect transistor, CoolMosfet, TGBT insulated gate bipolar transistor
Kind, the first diode, the second diode, third diode, the 4th diode, the 5th diode, the 6th diode, the 7th
Diode is diode included inside separate diode or power switch tube.
The utility model has the beneficial effect that the utility model provides a kind of seven level inverse conversions using switching capacity
Device, the inverter need not move through transformer and can boost to input DC power, seven kinds of level are exported, relative to tradition
Seven electrical level inverters of structure reduce switch element number in system under identical output voltage grade, reduce switch damage
Consumption, improves output waveform quality, reduces the complexity of device, effectively reduce the manufacture and maintenance cost of inverter, mention
The high efficiency of inverter and the reliability of system.
Detailed description of the invention
Fig. 1 is a kind of structure of seven electrical level inverters of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 2 is a kind of the first main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 3 is a kind of second of main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 4 is a kind of the third main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 5 is a kind of the 4th kind of main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 6 is a kind of the 5th kind of main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 7 is a kind of the 6th kind of main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 8 is a kind of the 7th kind of main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Fig. 9 is a kind of the 8th kind of main switch state of seven electrical level inverters using switched-capacitor circuit of the utility model
Schematic diagram；
Figure 10 is that the 9th kind of a kind of seven electrical level inverters using switched-capacitor circuit of the utility model mainly switchs shape
State schematic diagram；
Figure 11 is that the tenth kind of a kind of seven electrical level inverters using switched-capacitor circuit of the utility model mainly switchs shape
State schematic diagram.
Specific embodiment
Below with reference to embodiment and compares attached drawing the utility model is described in further detail.
Fig. 1 shows the seven electrical level inverter structural schematic diagrams using switched-capacitor circuit of the utility model.The inversion
Device is made of DC power supply, switching capacity group SC, full-bridge switch group SW.
The switching capacity group of the present embodiment inverter is by first capacitor C1, the second capacitor C2, the 5th switching tube S5, the 6th
Switching tube S6, the 7th switching tube S7, the 5th diode D5, the 6th diode D6, the 7th diode D7, the 8th diode D8,
Nine diode D9, the tenth diode D10 are constituted.The anode and the 5th of the anode of the 8th diode D5, the 9th diode D9
The collector and DC power anode of switching tube S5 is connected in first node Q1；Cathode, the 7th switching tube of 9th diode D9
The collector of S7 and the anode of first capacitor C1 are connected in second node Q2；Emitter, the first capacitor C1 of 5th switching tube S5
Cathode and the anode of the tenth diode D10 be connected in third node Q3；The cathode of 8th diode D8 and the second capacitor C2's
Anode is connected in fourth node Q4；The collector of 6th switching tube S6, the cathode of the tenth diode D10, the 7th switching tube S7
The cathode of emitter and the second capacitor C2 are connected in the 5th node Q5；The emitter of 6th switching tube S6 and DC power cathode phase
It is connected in the 6th node Q6；The anode of the 5th diode D5 is connected with the emitter of the 5th switching tube S5, the 5th diode D5
Cathode be connected with the 5th switching tube S5 collector；The emitter phase of the anode and the 6th switching tube S6 of the 6th diode D6
Even, the cathode of the 6th diode D6 is connected with the 6th switching tube S6 collector；The anode of the 7th diode D7 is opened with the 7th
The emitter for closing pipe S7 is connected, and the cathode of the 7th diode D7 is connected with the 7th switching tube S7 collector.
When the first capacitor C1 of the switching capacity group SC of the present embodiment inverter is full of energy, voltage and direct current thereon
Voltage on source is equal.
When the second capacitor C2 of the switching capacity group SC of the present embodiment inverter is full of energy, voltage and direct current thereon
Voltage on source is equal.
The effect of the 9th diode D9 of the switching capacity group SC of the present embodiment inverter is on limitation first capacitor C1
Electric current is reverse flowed to DC power supply.
The effect of the 8th diode D8 of the switching capacity group SC of the present embodiment inverter is on the second capacitor C2 of limitation
Electric current is reverse flowed to DC power supply.
The full-bridge switch group SW full-bridge switch group of the present embodiment inverter is by first switch tube S1, second switch S2,
Three switching tube S3, the 4th switching tube S4, first diode D1, the second diode D2, third diode D3, the 4th diode D4 structure
At；The collector of the first switch tube S1 and the collector of second switch D2 are connected in the 7th node Q7, first switch
The emitter of pipe S1 and the collector of third switching tube D3 are connected in the 8th node Q8, the emitter of third switching tube S3 and the
The emitter of four switching tube S4 is connected in the 9th node Q9, the collector of the emitter of second switch S2 and the 4th switching tube D4
It is connected in protelum point Q10；The anode of the first diode D1 is connected with the emitter of first switch tube S1, first diode
The cathode of D1 is connected with first switch tube S1 collector, the transmitting of the anode and second switch S2 of the second diode D2
Extremely it is connected, the cathode of the second diode D2 is connected with second switch S2 collector；The anode of the third diode D3 and
The emitter of three switching tube S3 is connected, and the cathode of third diode D3 is connected with third switching tube S3 collector；Described 4th 2
The anode of pole pipe D4 is connected with the emitter of the 4th switching tube S4, the cathode of the 4th diode D4 and the 4th switching tube S4 collector
It is connected.
The 7th node Q7 of full-bridge switch group, the 9th node Q9 of the present embodiment inverter respectively with switching capacity group the 4th
Node Q4, the 6th node Q6 are connected, and the 8th node Q8 and protelum point Q10 are respectively inverter output positive and negative terminal.
Fig. 2 to Figure 11 show ten kinds of main switch state schematic diagrames of seven electrical level inverters.If direct current power source voltage is
DC voltage on E, first capacitor C1 and the second capacitor C2 is E, and the control mode of inverter and six kinds of voltage output states are such as
Under:
1) when switching tube S1 conducting, switching tube S2 shutdown, switching tube S3 shutdown, switching tube S4 conducting, switching tube S5 conducting,
Switching tube S6 shutdown, switching tube S7 conducting, as shown in Fig. 2, DC power supply is connected with first capacitor C1, the second capacitor C2, it is equivalent
DC voltage is 3E, and the output voltage of seven electrical level inverters is 3E.At this point, the 8th diode D8, the 9th diode D9, the tenth
Diode D10 reversely ends, if current direction is positive, as shown in the solid arrow in Fig. 2, electric current passes through first switch tube
S1, load and the 4th switching tube S4 return to the cathode of DC power supply；It is as the dotted line arrows, then electric if current direction is negative
Stream returns to the 7th node Q7 by the 4th diode D4, load and first diode D1.
2) when switching tube S1 conducting, switching tube S2 shutdown, switching tube S3 shutdown, switching tube S4 conducting, switching tube S5 shutdown,
Switching tube S6 shutdown, switching tube S7 conducting, as shown in figure 3, DC power supply is in parallel with the second capacitor C2, Equivalent DC side voltage is
2E, the output voltage of seven electrical level inverters are 2E.At this point, the 8th diode D8, the tenth diode D10 reversely end, the 9th 2
Pole pipe D9 conducting, if current direction is positive, as shown in the solid arrow in Fig. 3, electric current by first switch tube S1, load and
4th switching tube S4 returns to the cathode of DC power supply；If current direction is negative, as the dotted line arrows, then electric current passes through the 4th
Diode D4, load and first diode D1 return to the 7th node Q7.
3) when switching tube S1 conducting, switching tube S2 shutdown, switching tube S3 shutdown, switching tube S4 conducting, switching tube S5 shutdown,
Switching tube S6 shutdown, switching tube S7 shutdown, as shown in figure 4, Equivalent DC side voltage is E, the output voltage of seven electrical level inverters
For E.At this point, if current direction is positive, as shown in the solid arrow in Fig. 4, electric current by first switch tube S1, load and
4th switching tube S4 returns to the 9th node Q9；If current direction is negative, as the dotted line arrows, then electric current passes through the four or two pole
Pipe D4, load and first diode D1 return to the 7th node Q7.
3) when switching tube S1 conducting, switching tube S2 shutdown, switching tube S3 shutdown, switching tube S4 conducting, switching tube S5 shutdown,
Switching tube S6 conducting, switching tube S7 shutdown, as shown in figure 5, DC power supply is in parallel with the second capacitor C2, Equivalent DC side voltage is
E, the output voltage of seven electrical level inverters are E.At this point, if current direction is positive, as shown in the solid arrow in Fig. 5, electric current
The 9th node Q9 is returned to by first switch tube S1, load and the 4th switching tube S4；If current direction is negative, such as dotted arrow
Shown, then electric current returns to the 7th node Q7 by the 4th diode D4, load and first diode D1.
4) when switching tube S1 conducting, switching tube S2 conducting, switching tube S3 shutdown, switching tube S4 shutdown, as shown in fig. 6, function
The output voltage of rate unit port is 0+.
5) when switching tube S1 shutdown, switching tube S2 shutdown, switching tube S3 conducting, switching tube S4 conducting, as shown in fig. 7, function
The output voltage of rate unit port is 0-.
6) when switching tube S1 shutdown, switching tube S2 conducting, switching tube S3 conducting, switching tube S4 conducting, switching tube S5 shutdown,
Switching tube S6 shutdown, switching tube S7 shutdown, as shown in figure 8, Equivalent DC side voltage is E, the output voltage of seven electrical level inverters
For-E.At this point, at this point, as shown in the solid arrow in Fig. 8, electric current passes through second switch S2, bears if current direction is positive
It carries and third switching tube S3 returns to the 9th node Q9；If current direction is negative, as the dotted line arrows, then electric current passes through third
Diode D3, load and the second diode D2 return to the 7th node Q7.
7) when switching tube S1 shutdown, switching tube S2 conducting, switching tube S3 conducting, switching tube S4 shutdown, switching tube S5 shutdown,
Switching tube S6 conducting, switching tube S7 shutdown, as shown in figure 9, DC power supply is in parallel with the second capacitor C2, Equivalent DC side voltage is
E, the output voltage of seven electrical level inverters are-E.At this point, if current direction is positive, as shown in the solid arrow in Fig. 9, electric current
The 9th node Q9 is returned to by second switch S2, load and third switching tube S3；If current direction is negative, such as dotted arrow
Shown, then electric current returns to the 7th node Q7 by third diode D3, load and the second diode D2.
When switching tube S1 shutdown, switching tube S2 conducting, switching tube S3 conducting, switching tube S4 shutdown, switching tube S5 shutdown, open
Pipe S6 shutdown, switching tube S7 conducting are closed, as shown in Figure 10, DC power supply is in parallel with the second capacitor C2, and Equivalent DC side voltage is
2E, the output voltage of seven electrical level inverters are -2E.At this point, the 8th diode D8, the tenth diode D10 reversely end, the 9th 2
Pole pipe D9 conducting, if current direction is positive, as shown in the solid arrow in Figure 10, electric current is by second switch S2, load
DC power cathode is returned to third switching tube S3；If current direction is negative, as the dotted line arrows, then electric current passes through third
Diode D3, load and the second diode D2 return to the 7th node Q7.
When switching tube S1 shutdown, switching tube S2 conducting, switching tube S3 conducting, switching tube S4 shutdown, switching tube S5 conducting, open
Pipe S6 shutdown, switching tube S7 conducting are closed, as shown in figure 11, DC power supply is connected with first capacitor C1, the second capacitor C2, equivalent straight
Stream side voltage is 3E, and the output voltage of seven electrical level inverters is -3E.At this point, the 8th diode D8, the 9th diode D9, the tenth
Diode D10 reversely ends, if current direction is positive, as shown in the solid arrow in Figure 11, electric current passes through second switch
S2, load and third switching tube S3 return to DC power cathode；If current direction is negative, as the dotted line arrows, then electric current
The 7th node Q7 is returned to by third diode D3, load and the second diode D2.
As described above, seven electrical level inverters have ten kinds of main switch states, can export 3E, 2E, E, 0,-E, -2E and -
Seven kinds of voltage levels of 3E.It should be understood that 0 output level includes Equivalent DC side voltage a variety of opening when being 3E, 2E, E and 0
The flexibility of inverter control can be improved in the switch state of off status, these redundancies.
It should be understood that each power switch tube in above embodiment structure can be used there are many selection
MOSFET metal oxide layer semiconductcor field effect transisto, PowerMosfet electric power field effect transistor, CoolMosfet are tied deeply
Any one in high pressure field-effect tube, TGBT insulated gate bipolar transistor.
It should be understood that each anti-paralleled diode in above embodiment structure is that separate diode or power are opened
Close diode included inside pipe.
Claims (4)
1. a kind of electrical level inverter using switched-capacitor circuit, it is characterised in that: the inverter by, DC power supply, open
Pipe capacitance group and full-bridge switch group are constituted；It is connected again with the both ends of full-bridge switch group after DC power supply is in parallel with switching capacity group,
The switching capacity group is by first capacitor, the second capacitor, the 5th switching tube, the 6th switching tube, the 7th switching tube, the five or two pole
Pipe, the 6th diode, the 7th diode, the 8th diode, the 9th diode, the tenth diode are constituted；8th diode
Anode, the anode of the 9th diode and the collector and DC power anode of the 5th switching tube be connected in first node；9th
The anode of the cathode of diode, the collector of the 7th switching tube and first capacitor is connected in second node；The hair of 5th switching tube
The anode of emitter-base bandgap grading, the cathode of first capacitor and the tenth diode is connected in third node；The cathode of 8th diode and the second electricity
The anode of appearance is connected in fourth node；The collector of 6th switching tube, the cathode of the tenth diode, the 7th switching tube emitter
The 5th node is connected in the cathode of the second capacitor；The emitter and DC power cathode of 6th switching tube are connected in Section six
Point；The anode of 5th diode is connected with the emitter of the 5th switching tube, the cathode and the 5th switching tube of the 5th diode
Collector is connected；The anode of 6th diode is connected with the emitter of the 6th switching tube, the cathode of the 6th diode and
Six switch pipe collectors are connected；The anode of 7th diode is connected with the emitter of the 7th switching tube, the 7th diode
Cathode is connected with the 7th switch pipe collector；The full-bridge switch group by first switch tube, second switch, third switching tube,
4th switching tube, first diode, the second diode, third diode, the 4th diode are constituted；The first switch tube
Collector and the collector of second switch are connected in the 7th node, the emitter of first switch tube and the current collection of third switching tube
Pole is connected in the 8th node, and the emitter of the emitter of third switching tube and the 4th switching tube is connected in the 9th node, and second opens
The collector of the emitter and the 4th switching tube that close pipe is connected in protelum point；The anode and first switch of the first diode
The emitter of pipe is connected, and the cathode of first diode is connected with first switch pipe collector, the anode of second diode and
The emitter of second switch is connected, and the cathode of the second diode is connected with second switch pipe collector；The third diode
Anode be connected with the emitter of third switching tube, the cathode of third diode is connected with third switch pipe collector；Described
The anode of four diodes is connected with the emitter of the 4th switching tube, the cathode of the 4th diode and the 4th switch pipe collector phase
Even；7th node of the full-bridge switch group, the 9th node respectively with the fourth node of switching capacity group, the 6th node phase
Even, the 8th node and protelum point are respectively inverter output positive and negative terminal.
2. the electrical level inverter according to claim 1 using switched-capacitor circuit, it is characterised in that: the switching capacity
When the first capacitor of group and the second capacitor are full of energy, voltage thereon is equal with the voltage on the DC power supply.
3. the electrical level inverter according to claim 1 using switched-capacitor circuit, it is characterised in that: the switch electricity
The effect of 9th diode of appearance group is that the electric current limited in first capacitor is reverse flowed to DC power supply, the 8th diode
Effect is reverse flowed to DC power supply for the electric current on the second capacitor of limitation.
4. the electrical level inverter according to claim 1 using switched-capacitor circuit, it is characterised in that: the first switch
Pipe, second switch, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 7th switching tube are all made of
IGBT insulated gate bipolar transistor, the first diode, the second diode, third diode, the 4th diode, the five or two
Pole pipe, the 6th diode, the 7th diode are diode included inside separate diode or power switch tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821590655.9U CN208767993U (en) | 2018-09-28 | 2018-09-28 | A kind of electrical level inverter using switched-capacitor circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821590655.9U CN208767993U (en) | 2018-09-28 | 2018-09-28 | A kind of electrical level inverter using switched-capacitor circuit |
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| CN208767993U true CN208767993U (en) | 2019-04-19 |
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|---|---|---|---|
| CN201821590655.9U Expired - Fee Related CN208767993U (en) | 2018-09-28 | 2018-09-28 | A kind of electrical level inverter using switched-capacitor circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194170A (en) * | 2018-09-28 | 2019-01-11 | 华东交通大学 | A kind of seven electrical level inverters using switched-capacitor circuit |
| CN111293912A (en) * | 2020-02-28 | 2020-06-16 | 厦门理工学院 | Multi-level inverter, system and control method |
| CN111865124A (en) * | 2020-07-13 | 2020-10-30 | 广东工业大学 | Boost inverter circuit based on switched capacitor |
-
2018
- 2018-09-28 CN CN201821590655.9U patent/CN208767993U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194170A (en) * | 2018-09-28 | 2019-01-11 | 华东交通大学 | A kind of seven electrical level inverters using switched-capacitor circuit |
| CN111293912A (en) * | 2020-02-28 | 2020-06-16 | 厦门理工学院 | Multi-level inverter, system and control method |
| CN111865124A (en) * | 2020-07-13 | 2020-10-30 | 广东工业大学 | Boost inverter circuit based on switched capacitor |
| CN111865124B (en) * | 2020-07-13 | 2023-10-13 | 广东工业大学 | Boost inverter circuit based on switch capacitor |
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