WO2014192726A1 - コンバータと多段倍電圧整流回路を併用した均等化機能付充放電器 - Google Patents
コンバータと多段倍電圧整流回路を併用した均等化機能付充放電器 Download PDFInfo
- Publication number
- WO2014192726A1 WO2014192726A1 PCT/JP2014/063932 JP2014063932W WO2014192726A1 WO 2014192726 A1 WO2014192726 A1 WO 2014192726A1 JP 2014063932 W JP2014063932 W JP 2014063932W WO 2014192726 A1 WO2014192726 A1 WO 2014192726A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- circuit
- charger
- doubler rectifier
- rectifier circuit
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
- H02M3/005—Conversion of dc power input into dc power output using Cuk converters
-
- 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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/10—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
- H02M7/103—Containing passive elements (capacitively coupled) which are ordered in cascade on one source
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
-
- 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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/1557—Single ended primary inductor converters [SEPIC]
-
- 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
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
-
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a charger / discharger that performs charging / discharging while equalizing the voltage of each storage cell in a storage module configured by connecting a plurality of storage cells (secondary battery, electric double layer capacitor, etc.) in series.
- a charger / discharger that performs charging / discharging while equalizing the voltage of each storage cell in a storage module configured by connecting a plurality of storage cells (secondary battery, electric double layer capacitor, etc.) in series.
- Storage cells such as secondary batteries and electric double layer capacitors are used by constituting a module by connecting a plurality of cells in series in order to obtain a desired voltage according to the application.
- variation in cell voltage due to variations in capacity, internal resistance, environmental temperature, self-discharge, etc. of each cell occurs during repeated charge / discharge.
- problems such as accelerated progress of deterioration and a decrease in available energy occur. Therefore, when using a plurality of power storage cells connected in series, an equalizing circuit for eliminating voltage variations among the cells is required.
- FIG. 3, Patent Document 2 a charger having an equalizing function that can be operated with one stone (that is, one switch) has been proposed (FIG. 3, Patent Document 2). Since this method is a method in which the charger and the equalization circuit are integrated, charging can be performed while eliminating the voltage variation of the storage cells connected in series. Since it is not necessary to provide a charger and an equalization circuit separately, simplification as a power storage system is possible. However, this method is a method of supplying charging power individually to storage cells connected in series, and it is necessary to design the current capacity of all the components constituting the circuit to be relatively large. There is a tendency to increase costs. Moreover, since it does not have a function as a discharger, a discharger is required separately.
- the present invention has been made under such a background.
- the present invention provides a charger that can be charged while eliminating the voltage variation of the storage cell, and that does not need to be designed with a large current capacity for at least the circuit unit responsible for equalization of the storage cell voltage. It is an object of the present invention to provide a charger / discharger further provided with a discharging function in such a charger.
- the present invention connects two series-connected diodes in parallel to each of first to n-th (n is an integer of 2 or more) capacitors connected in series, and A multi-stage voltage doubler rectifier circuit formed by connecting an intermediate capacitor to an intermediate point in each of two series-connected diodes, a converter including an element to which a rectangular wave voltage is applied during operation, and An input circuit for receiving a voltage input and outputting a voltage to the multistage voltage doubler rectifier circuit, and by connecting first to nth capacitors connected in series to the output part of the converter, the output of the converter
- the first to n-th capacitors are charged by charging the first to n-th capacitors with the voltage, and the voltage is input from the element to the multistage voltage doubler rectifier circuit via the input circuit.
- Providing a battery charger characterized in that it is configured to charge uniformly.
- the series capacitor chain is charged by the output voltage of the converter while equalizing the voltage of the series capacitor chain using a rectangular wave voltage applied to the elements in the converter. As shown in the examples described later, it is possible to connect a storage cell or a group of storage cells to the series capacitor chain and charge them.
- a circuit including a first coil connected to the element and a second coil magnetically coupled to the first coil and connected to the multistage voltage doubler rectifier circuit is used.
- an input circuit is configured using a transformer in this way, the current ratio between the first coil side and the second coil side can be adjusted, so that the degree of freedom in design increases.
- the converter used in the charger of the present invention may be a bidirectional converter. Since the first to nth capacitors can be charged and discharged by using the bidirectional converter, the charger of the present invention can operate as a charger / discharger.
- the charger / discharger with equalization function of the present invention it is possible to add a new equalization function by connecting a multi-stage voltage doubler rectifier circuit to a switching node in a charger / discharger using a conventional converter.
- charging / discharging of the storage cell is mainly performed by a converter, and the multistage voltage doubler rectifier circuit supplies only a minute electric power that eliminates voltage variation between the storage cells. Therefore, the charge / discharge circuit part (converter) and the equalization circuit part (multi-stage voltage doubler rectifier circuit) can be designed separately and appropriately, thus reducing the size and cost of the circuit compared to the conventional method. Is possible.
- FIG. FIG. 10 is a circuit diagram of a conventional two-stone type equalization circuit proposed by Japanese Patent Application No. 2012-046569. It is a circuit diagram of the conventional one-stone type equalizing charger described in Patent Document 2. It is a circuit diagram of a step-down converter that can be used in the charger and the charger / discharger of the present invention. It is a circuit diagram of a step-up converter that can be used in the charger and the charger / discharger of the present invention. It is a circuit diagram of a buck-boost converter that can be used in the charger and charger / discharger of the present invention.
- FIG. 8 is a circuit diagram of an equivalent circuit of the multistage voltage doubler rectifier circuit shown in FIG. 7.
- FIG. 1 is a circuit diagram of a system in which storage cells B1 to B4 connected in series are connected to a charger with an equalizing function using a SEPIC converter, an input circuit, and a multistage voltage doubler rectifier circuit, which is the first embodiment of the present invention. It is. It is a circuit diagram when the connection point of a multistage voltage doubler rectifier circuit and an input circuit is changed from the structure of FIG.
- FIG. 13 is a diagram showing a current path in mode 1 when the multistage voltage doubler rectifier circuit and the input circuit shown in FIG. 12 are operating.
- FIG. 13 is a diagram showing a current path in mode 2 when the multistage voltage doubler rectifier circuit and the input circuit shown in FIG. 12 are operating.
- FIG. 1 It is a circuit diagram which shows another example of a multistage voltage doubler rectifier circuit and an input circuit.
- a series resonant circuit is used as the input circuit.
- FIG. 1 It is a figure which shows the current path of the mode 1 and the mode 5 at the time of operation
- FIG. 2 It is a figure which shows the current path of the mode 2 and the mode 4 at the time of operation
- the series-connected storage cells B1 to B4 are connected to a charger with an equalizing function using a SEPIC converter, an input circuit (series resonant circuit), and a multistage voltage doubler rectifier circuit, which is the second embodiment of the present invention.
- It is a circuit diagram of a bidirectional SEPIC converter that can be used in the charger and the charger / discharger of the present invention. It is a graph which shows the operation waveform at the time of charge of a bidirectional SEPIC converter.
- FIG. 26 is a diagram showing a current path in mode 1 when the multistage voltage doubler rectifier circuit and the input circuit shown in FIG. 25 are operating.
- FIG. 26 is a diagram showing a current path in mode 2 when the multistage voltage doubler rectifier circuit and the input circuit shown in FIG. 25 are operating.
- each capacitor is mainly a single storage element, and the storage cell is a secondary battery, an electric double layer capacitor, etc., but these are any elements that can be charged and discharged, and a plurality of elements Or any device configured using these modules.
- the multistage voltage doubler rectifier circuit in the following embodiments is shown as a four stage voltage doubler rectifier circuit
- the number of stages of the multistage voltage doubler rectifier circuit in the present invention that is, the number n of capacitors connected in series is 2 or more. It can be any integer.
- the charger and charger / discharger of the present invention having a voltage equalizing function are provided with three functional parts of a converter (charging circuit), an input circuit, and a multistage voltage doubler rectifier circuit.
- a converter charging circuit
- FIGS. 4a to 4f respectively show a step-down converter, a step-up converter, an inverting step-up / step-down converter, a SEPIC converter, a Zeta converter, and a Cuk converter.
- Each capacitor included in the multistage voltage doubler rectifier circuit can be charged by the output voltage of these converters.
- FIGS. 4a to 4f a rectangular wave voltage generated at the switching node in the converter is also shown.
- the voltages of the capacitors included in the multistage voltage doubler rectifier circuit can be equalized.
- the Zeta converter shown in FIG. 4e there are two switching nodes. Any of these nodes may be used.
- a non-insulated PWM (Pulse Width Modulation) converter is shown here, other non-insulated converters, isolated converters (half bridge, full bridge, etc.), resonant converters, etc. may be used. Is possible. Since all the converters shown here are unidirectional converters using diodes, they can be used only for chargers (or only for dischargers). By replacing the diode with a switch and using these converters as bidirectional converters, the charger / discharger of the present invention can be configured as described later.
- FIGS. 5, 6a, and 6b the operation waveforms and current paths during the operation of the SEPIC converter of FIG. 4d among the converters of FIGS. 4a to 4f are shown in FIGS. 5, 6a, and 6b, respectively.
- V Q represents a voltage applied to the switch Q (in FIG. 6 a, the polarity for passing a current in the direction of the current flowing through the switch Q is positive)
- V L2 is This represents a voltage applied to the inductor L2 (a negative polarity in which the current flows in the direction of the current flowing through the inductor L2 in FIG. 6A)
- i L represents a current flowing through the inductor L1 (FIG. 5).
- L1) represents the current flowing through the inductor L2 (L2 in the graph of FIG. 5)
- i Do represents the current flowing in the forward direction through the diode Do.
- FIG. 7 shows an example of a multistage voltage doubler rectifier circuit and an input circuit.
- the multistage voltage doubler rectifier circuit includes two series-connected diodes D1, D2, D3, D4, D5, D6, D7, D8 for each of the series-connected capacitors Cout1 to Cout4. Further, the intermediate capacitors C1 to C4 are respectively connected to the intermediate points of the two series-connected diodes.
- the multi-stage voltage doubler rectifier circuit is connected to an input circuit for inputting the voltage output from the elements in the converter to the multi-stage voltage doubler rectifier circuit.
- the input circuit is magnetically coupled to the first coil connected to the element side in the converter and the first coil via an arbitrary core, and further, a multistage voltage doubler rectifier circuit.
- the capacitor Cblock connected to the first coil is a blocking capacitor for blocking the direct current component of the current flowing from the elements in the converter. Further, the turn ratio of the first coil and the second coil is N: 1.
- the rectangular wave voltage generated by the converter element (switching node) is input between the terminals A and B of the input circuit. At this time, charging / discharging current flows through the capacitors Cout1 to Cout4 according to the change of the input rectangular wave voltage, and the odd-numbered diodes D1, D3, D5, D7 and the even-numbered diodes D2, D2 in the multistage voltage doubler rectifier circuit. D4, D6, and D8 are turned on alternately.
- a rectangular wave voltage (for example, V Q in FIG. 5) shown in the graph of V SN in FIG. 8 is input to the input circuit, and is subjected to voltage transformation by the transformer and DC component removal action of the blocking capacitor Cblock.
- V Q in FIG. 5 a rectangular wave voltage
- FIG. 9a a current flows through the path as shown in FIG. 9a
- mode 2 in FIG. 8, V SN In the graph of FIG. 9
- a current flows through a path as shown in FIG. 9b.
- V Cout1 ⁇ V Cout 4 voltage is positive polarity flowing current in the direction flowing through the capacitor Cout3 in FIG 9a
- the V c1a ⁇ V c4a (and, V c1b ⁇ V c4b below) is In FIG. 9a, the voltage of the polarity that causes the current to flow in the direction of flowing through the intermediate capacitors C1 to C4 is negative.
- V SN in mode 2 is set to 0 (for example, the voltage of the inductor L2 included in the SEPIC converter of FIG. 4d takes positive and negative values, but the reference point of the voltage is taken as the negative voltage). Thus, V SN in mode 2 may be set to zero.) If the magnitudes of the voltages of the intermediate capacitors C1, C2, C3, and C4 are V C1b , V C2b , V C3b , and V C4b , the current path of FIG. By applying Kirchhoff's second law, the following equation (2) is obtained. (2)
- f is the frequency of V SN .
- f ⁇ G1, f ⁇ G2, f ⁇ G3, and f ⁇ G4 are the reciprocals of the resistances, that is, the conductance dimensions.
- the circuit of FIG. 7 can be replaced with an equivalent circuit as shown in FIG.
- the equivalent power source Vdc is a DC power source with an output voltage E / N
- the equivalent resistors R1 to R4 are obtained by replacing the charging / discharging operations of the intermediate capacitors C1 to C4 with equivalent resistors, and the resistance values of the equivalent resistors R1 to R4 Can be expressed as 1 / (f ⁇ G1), 1 / (f ⁇ G2), 1 / (f ⁇ G3), and 1 / (f ⁇ G4), respectively.
- G1 to G4 are equal, the values of R1 to R4 are also equal. Therefore, when the voltages of the capacitors Cout1 to Cout4 are the same in FIG. 10, the currents flowing through the equivalent resistors R1 to R4 are also equal. That is, the capacitors Cout1 to Cout4 are charged uniformly.
- each voltage of the capacitors Cout1 to Cout4 in the steady state is E / N (however, the voltage drop in the diode is ignored).
- FIG. 4 series of storage cell groups B1 to B4 are connected to the charger according to the first embodiment of the present invention in which the SEPIC converter of FIG. 4d is connected to the input circuit and the multistage voltage doubler rectifier circuit of FIG.
- FIG. 11 shows a circuit diagram of the charging system with an equalizing function.
- a switching node composed of contacts of the capacitor Cet, the diode Do, and the inductor L2 in the SEPIC converter is connected to the multistage voltage doubler rectifier circuit via the input circuit.
- the output terminal of the SEPIC converter, that is, the diode Do is connected to the capacitors Cout1 to Cout4, and the capacitors Cout1 to Cout4 are connected to the storage cells B1 to B4.
- the storage cells B1 to B4 are charged in series by the output voltage of the SEPIC converter.
- the multistage voltage doubler rectifier circuit is connected to each of the storage cells B1 to B4.
- the capacitors Cout1 to Cout4 are evenly charged. Therefore, the storage cells B1 to B4 connected in parallel with these capacitors are in a state of voltage variation. Accordingly, a current is supplied to eliminate the voltage variation.
- SEPIC converter performs the charging of the power storage cells B1 ⁇ B4 using PWM control, the relationship between the total voltage V total input power magnitude of Vin by the input voltage (the V in.) And B1 ⁇ B4, when the ratio Using D (ratio of the ON period to one switching period of the switch Q), it is expressed by the following equation. (5)
- the storage cells B1 to B4 are equally charged by performing the equalization operation described using the above formulas (1) to (4) and the charging operation according to the above formula (5) in parallel. It is done.
- the charger with equalization function of the present invention only one switch (switch Q) is required in the converter, and the multi-stage voltage doubler rectifier circuit itself for providing the balance function can be configured without a switch. is there. Similar to the conventional equalization circuit shown in FIGS. 1 and 2, since it can be configured with a small number of switches, the circuit configuration is greatly simplified as compared with various conventional methods requiring a large number of switches. be able to.
- the charger with the equalization function is smaller than the conventional equalization charger by optimally designing the converter unit responsible for the charge function and the multi-stage voltage doubler rectifier circuit responsible for the equalization function. Economic design becomes possible. For example, since the power required for equalization is generally much smaller than that required for charging, a high-power element is used for the converter, and a low-power element is used for the multistage voltage doubler rectifier circuit. Such a design is optimal.
- FIG. 11 a configuration in which a switching node formed by a contact point of a capacitor Cet, a diode Do, and an inductor L2 in a SEPIC converter is connected to a multistage voltage doubler rectifier circuit via an input circuit (an inductor to which a rectangular wave voltage is applied).
- the configuration in which the multi-stage voltage doubler rectifier circuit is connected to the element L2 via the input circuit) is shown.
- the other switching node that is, the switching node constituted by the contact of the capacitor Cet, the switch Q, and the inductor L1
- the same function can be obtained when the multi-stage voltage doubler rectifier circuit is connected to the switch element Q (the configuration in which the multi-stage voltage doubler rectifier circuit is connected to the switch element Q to which the rectangular wave voltage is applied via the input circuit).
- a charger with an equalizing function can be configured using a converter other than the SEPIC converter.
- FIG. 12 shows a circuit diagram when the connection point between the multistage voltage doubler rectifier circuit and the input circuit is changed from the configuration of FIG.
- FIG. 14 shows a circuit diagram of a configuration in which a series resonant circuit is used as an input circuit and a multi-stage voltage doubler rectifier circuit is connected thereto.
- a series resonant tank is constituted by the resonant inductor Lr and the resonant capacitor Cr, and the circuit after the transformer is the same as that shown in FIG.
- a rectangular wave voltage V SN generated at a switching node in the converter is applied between the terminals AB, so that a sinusoidal AC voltage is input to the multistage voltage doubler rectifier circuit.
- FIG. 15 shows operation waveforms when the circuit shown in FIG. 14 is operated in DCM (Discontinuous Conduction Mode).
- i Lr represents the current flowing through the resonant inductor Lr (the current flowing in the direction of the arrow in FIG. 14 is positive)
- i D (2i ⁇ 1) represents the order of flow through the odd-numbered diodes D1, D3, D5, and D7.
- the direction current i D (2i) represents the forward current flowing through the even-numbered diodes D2, D4, D6, and D8.
- a positive current i Lr begins to flow through the resonant inductor Lr (mode 1 in FIG. 15), but its waveform is resonant. Due to the resonance phenomenon between the inductor Lr and the resonance capacitor Cr, it becomes sinusoidal, and eventually falls and becomes negative (mode 2). After i Lr takes a minimum value, it rises again to zero, but according to the study of the present inventor, i Lr then takes a constant value of zero (mode 3). When the rectangular wave voltage V SN is switched to negative at this timing, a negative current i Lr starts to flow through the resonant inductor Lr (mode 4).
- i Lr Due to the resonance phenomenon between the resonance inductor Lr and the resonance capacitor Cr, i Lr changes in a sine wave shape, and eventually rises and becomes positive (mode 5). After i Lr takes the maximum value, it falls again to zero, but according to the study of the present inventor, i Lr then takes a constant value of zero (mode 6).
- i Lr is positive, a current flows through the multistage voltage doubler rectifier circuit as shown in FIG. 16a, and when iLr is negative, a current flows through the multistage voltage doubler rectifier circuit as shown in FIG. 16b. Flowing.
- the current flowing through each diode in the multistage voltage doubler rectifier circuit also changes in a sine wave shape (FIG. 15).
- the multistage voltage doubler rectifier circuit of FIG. 14 operates in the two current paths shown in FIGS. 16a and 16b in accordance with the polarity of the current i Lr flowing through the resonant inductor Lr.
- i Lr is negative (corresponding to mode 2 and mode 4 in FIG. 15)
- even-numbered diodes D (2i) in the multistage voltage doubler rectifier circuit are turned on.
- V SN is the voltage amplitude of the rectangular wave input voltage
- V P is the voltage applied to the first coil (FIG. 14)
- f S is a switching frequency of the rectangular wave voltage V SN .
- the current in the circuit can be set to an arbitrary value or less without using a current limiting circuit or feedback control. Is possible.
- D min is the minimum duty ratio during operation of the SEPIC converter.
- the duty ratio D varies according to the input / output voltage ratio, but if the above equation (10) is satisfied, the series resonant circuit and the multistage voltage doubler rectifier circuit Since no excessive current flows through the charger, the charger can operate safely.
- FIG. 4 series of storage cell groups B1 to B4 are connected to the charger according to the second embodiment of the present invention, in which the SEPIC converter of FIG. 4d is connected to the input circuit and the multistage voltage doubler rectifier circuit of FIG.
- a circuit diagram of the charging system with the equalizing function is shown in FIG.
- FIGS. 16a and 16b A circuit diagram of the charging system with the equalizing function is shown in FIG.
- the output voltage of the SEPIC converter is applied to the storage cell groups B1 to B4, whereby the storage cells are charged. Further, by using the current limiting function by the DCM operation of the series resonant circuit, a separate current limiting function and current limiting circuit are not required.
- FIG. 17 shows a configuration in which a switching node constituted by a contact point of a capacitor Cet, a diode Do, and an inductor L2 in a SEPIC converter is connected to a multi-stage voltage doubler rectifier circuit. That is, the same equalization function can be obtained even if a switching node constituted by the contact points of the capacitor Cet, the switch Q and the inductor L1 is connected to the multistage voltage doubler rectifier circuit. Further, the charger with the equalizing function of the present invention can be configured even if a converter other than the SEPIC converter is used. In addition, although the series resonance type multi-stage voltage doubler rectifier circuit has been described above, other resonance methods may be employed.
- FIG. 18 shows the result of an experiment using the charger with equalization function (charging power 50 W) of the present invention.
- the charger shown in FIG. 17 of the present invention is used for charging, and the electronic load (constant current 1.8 A) is used for discharging.
- a charge / discharge cycle was performed.
- the inductances of the inductors L1 and L2 are 100 ⁇ H
- the capacitance of the capacitor Cet is 20 ⁇ F
- the on-resistance of the N-Ch MOSFET switch Q is 150 m ⁇
- the Schottky diode The forward voltage drop of Do was 0.67V.
- the capacitance of the intermediate capacitors C1 to C4 is 33 ⁇ F
- the capacitance of the capacitors Cout1 to Cout4 is 66 ⁇ F
- the forward voltage drop of the Schottky diodes D1 to D8 is 0.43 V
- the input circuit is
- the inductance of the resonant inductor Lr was 15.2 ⁇ H
- the capacity of the resonant capacitor Cr was 10 nF
- the turns ratio of the first coil to the second coil was 39: 6
- the mutual inductance was 3.09 mH. .
- the experiment was performed from the state where the initial voltage of each electric double layer capacitor module was varied.
- the standard deviation of the electric double layer capacitor module voltage gradually decreases due to the equalization function of the charger according to the present invention (the standard deviation graph in FIG. 18), so that the voltage variation is eliminated. You can see that it is moving in the direction. On the other hand, since the discharge is performed using the constant current electronic load during the discharge period, it can be seen that the standard deviation does not change greatly and the voltage variation does not change. Since the standard deviation has decreased to about 30 mV at the end of two cycles, it has been shown that the voltage variation is eliminated by the charger with the equalizing function of the present invention.
- the module voltage graph represents the voltage of each electric double layer capacitor module
- the total voltage and current graph represents the sum of the voltage and current of each electric double layer capacitor module.
- the embodiment of the charger with the equalizing function has been described above.
- the charger is configured using a unidirectional converter in which the direction of power transmission is unidirectional.
- the charger of the present invention is configured so that bidirectional power transmission is possible.
- the charger / discharger with the equalizing function of the invention is obtained.
- the charger / discharger of the present invention can be obtained by replacing the diode Do in the SEPIC converter included in the configuration of FIG. 17 with a switch and using the converter as a bidirectional SEPIC converter.
- FIG. 19 is a circuit diagram of a bidirectional SEPIC converter obtained by replacing a diode in the SEPIC converter with a switch.
- the power supply Vbat in FIG. 19 corresponds to the storage cells B1 to B4 (FIGS. 11 and 17) connected in series.
- the voltage of the power source Vin as V in if SEPIC converter output voltage V in ⁇ D / (1- D) is greater than the voltage of the power supply Vbat, bidirectional SEPIC converter to charge the power Vbat (charging mode), SEPIC
- the bidirectional SEPIC converter causes the power supply Vbat to perform a discharge operation (discharge mode).
- the current path in the charging mode is as shown in FIGS. 21a and 21b, and is the same as the current path shown in FIGS. 6a and 6b.
- mode 1 in which the switch Qa is turned on and the switch Qb is turned off, voltages are applied to the inductors L1 and L2 from the power source Vin and the capacitor Cet, respectively, so that the current flowing through the inductors L1 and L2 increases linearly. To do. At this time, the voltage applied to the switch Qa is zero (the on-resistance is ignored).
- mode 2 (FIG.
- the switch Qa in which the switch Qa is turned off and the switch Qb is turned on, the currents of the inductors L1 and L2 both flow to the power supply Vbat via the switch Qb.
- the induced electromotive force of the inductor L1 is applied to the switch Qa, but no current flows because the switch Qa is off.
- a voltage is applied from the capacitor Cout to the inductor L2 (the polarity is opposite to that applied from the capacitor Cet during the ON period of the switch Qa).
- FIG. 22 shows the voltage and current of each element in the discharge mode
- FIGS. 23a and 23b show the current paths.
- mode 1 in which the switch Qa is turned off and the switch Qb is turned on
- the voltage of the power supply Vbat is applied to the inductor L2
- the total voltage of the power supply Vbat and the capacitor Cet is applied to the inductor L1, respectively.
- Current increases linearly.
- An induced electromotive force is applied to the switch Qa from the inductor L1, but no current flows because the switch Qa is off.
- mode 2 in which the switch Qa is turned on and the switch Qb is turned off
- the currents of the inductors L1 and L2 both flow through the switch Qa.
- the voltage applied to the switch Qa is zero, and a voltage having a polarity opposite to that applied from the power supply Vbat in mode 1 is applied from the capacitor Cet to the inductor L2. Accordingly, with the switching operation, the voltage V L2 of the voltage V Qa and inductor L2 switches Qa are both a rectangular wave voltage. Throughout both periods, only the current of the inductor L1 flows to the power source Vin. Thus, with the switching operation, the voltage V L2 of the voltage V Qa and inductor L2 switch Qa both become square wave voltage ( Figure 22) for, these elements, multistage voltage doubler rectifier circuit through the input circuit By connecting to, it is possible to equalize the storage cell voltage.
- FIG. 24 shows a circuit diagram of the charge / discharge system. As in the system of FIG. 17, when a rectangular wave voltage is input to the input circuit, a current flows through the multistage voltage doubler rectifier circuit along the path shown in FIGS. 16a and 16b. The equalization operation similar to the equalization operation according to (4) is performed, and the voltages of the storage cell groups B1 to B4 are equalized.
- the output voltage of the bidirectional SEPIC converter is applied to the storage cell groups B1 to B4, whereby the storage cells are charged and discharged.
- a separate current limiting function and a current limiting circuit become unnecessary (however, using the series resonant circuit in this configuration is not necessary).
- the input circuit shown in FIG. 11 may be used, or the bidirectional converter and the multistage voltage doubler rectifier circuit may be connected by a conducting wire without using a transformer, as shown in Example 4 described later. May be good).
- a voltage including a transformer is used as an input circuit, and a voltage for equalizing the storage cell voltage is input to the multistage voltage doubler rectifier circuit.
- a transformer it is not essential to use a transformer in the present invention.
- the multi-stage voltage doubler input circuit receives a rectangular wave voltage from the inductor L2, and a current flows through a path similar to the current path in FIGS. 9a and 9b, that is, equalization by the above equations (1) to (4).
- the equalization operation similar to the operation is performed to equalize the voltages of the storage cell groups B1 to B4.
- the storage cells B1 to B4 are charged or discharged by the output voltage of the converter, and the charger and charger / charger of the present invention can be operated also in such an embodiment.
- the position at which the voltage for equalization is input from the input circuit to the multistage voltage doubler rectifier circuit is arbitrary.
- the multistage voltage doubler rectifier circuit shown in FIG. 25 when the rectangular wave voltage V SN from the element in the converter is input between the terminals AB as shown in the same figure, the current path flowing in the multistage voltage doubler rectifier circuit Is switched between the paths shown in FIG. 26a (mode 1) and FIG. 26b (mode 2).
- FIG. 26a mode 1
- FIG. 26b mode 2
- both ends of the inductor L2 in the SEPIC converter of FIG. 4d are directly connected to the terminals A and B of the multi-stage voltage doubler rectifier circuit of FIG. 25 by a conductive wire, and the output unit of the SEPIC converter is further connected in series. It is also possible to charge the storage cell group evenly by a charger connected to both ends of .about.C4.
- the present invention it is possible to configure a charger and a charger / discharger for uniformly charging power storage cells such as a secondary battery and an electric double layer capacitor.
- the present invention can be widely applied to a power source using a storage cell such as a secondary battery or an electric double layer capacitor.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
となる。ここで、fはVSNの周波数である。ここで、オームの法則から、f×G1,f×G2,f×G3,f×G4はそれぞれ抵抗の逆数、つまりコンダクタンスの次元であることが分かる。
が成り立ち、モード2においては
が成り立つ(矩形波状電圧VSNの波形は図8に示すとおりとした。また、VC1a~VC4a,VC1b~VC4bの極性は、上記式(1)~(4)を導出した際とは逆に定義した。)。
Cout1~Cout4 キャパシタ
C1~C4 中間キャパシタ
D1~D8 ダイオード
Cblock ブロッキングコンデンサ
Lr 共振インダクタ
Cr 共振キャパシタ
Vin,Vbat 電源
L1,L2 インダクタ
Q,Qa,Qb スイッチ
Do ダイオード
Cet キャパシタ
Claims (4)
- 直列接続された第1から第n(nは2以上の整数)のキャパシタの各々に対して、2つの直列接続されたダイオードを並列に接続し、更に、該2つの直列接続されたダイオードの各々における中間点に中間キャパシタを接続してなる、多段倍電圧整流回路と、
動作時において矩形波状の電圧が印加される素子を備えた、コンバータと、
前記素子から電圧の入力を受けて、前記多段倍電圧整流回路に対して電圧を出力する、入力回路と
を備え、
前記コンバータの出力部に前記直列接続された第1から第nのキャパシタを接続することにより、該コンバータの出力電圧によって該第1から第nのキャパシタを充電するとともに、前記素子から前記入力回路を介して前記多段倍電圧整流回路に電圧を入力することにより、該第1から第nのキャパシタを均等に充電するよう構成された
ことを特徴とする、充電器。 - 前記入力回路が、前記素子に接続された第1のコイルと、該第1のコイルと磁気的に結合されて前記多段倍電圧整流回路に接続された第2のコイルとを備えたことを特徴とする、請求項1に記載の充電器。
- 前記第1のコイルに、直列接続されたインダクタとキャパシタとを含む直列共振回路が接続されていることを特徴とする、請求項2に記載の充電器。
- 請求項1乃至3のいずれか一項に記載の充電器において前記コンバータとして双方向コンバータを用いることにより構成される、充放電器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020157033385A KR102125595B1 (ko) | 2013-05-28 | 2014-05-27 | 컨버터와 다단 배전압 정류회로를 병용한 균등화 기능을 구비한 충방전기 |
EP14804764.0A EP3007314B1 (en) | 2013-05-28 | 2014-05-27 | Charger-discharger with equalization function using both convertor and multi-stage voltage doubler rectifier circuit |
CN201480029896.4A CN105247757B (zh) | 2013-05-28 | 2014-05-27 | 并用转换器及多段倍压整流电路且具有均衡功能的充放电器 |
US14/892,860 US10069323B2 (en) | 2013-05-28 | 2014-05-27 | Charge-discharge device with equalization function using both convertor and multi-stage voltage doubler rectifier circuit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013112219A JP6127290B2 (ja) | 2013-05-28 | 2013-05-28 | コンバータと多段倍電圧整流回路を併用した均等化機能付充放電器 |
JP2013-112219 | 2013-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014192726A1 true WO2014192726A1 (ja) | 2014-12-04 |
Family
ID=51988755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/063932 WO2014192726A1 (ja) | 2013-05-28 | 2014-05-27 | コンバータと多段倍電圧整流回路を併用した均等化機能付充放電器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10069323B2 (ja) |
EP (1) | EP3007314B1 (ja) |
JP (1) | JP6127290B2 (ja) |
KR (1) | KR102125595B1 (ja) |
CN (1) | CN105247757B (ja) |
WO (1) | WO2014192726A1 (ja) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6465358B2 (ja) * | 2015-07-22 | 2019-02-06 | 日本蓄電器工業株式会社 | 電圧均等化回路システム |
AU2015205956B1 (en) * | 2015-07-24 | 2016-06-30 | WiseTech Global (Licensing) Pty Ltd | Circuits and methods for current drain of a battery for wireless sensor data transmission |
TWI573381B (zh) * | 2015-09-03 | 2017-03-01 | 財團法人國家實驗研究院 | 應用於無線功率傳輸系統之主僕式倍壓全波整流電路 |
KR102148059B1 (ko) * | 2016-07-29 | 2020-08-25 | 주식회사 엘지화학 | 다이오드를 이용한 배터리 셀 밸런싱 시스템 및 방법 |
CN106169620B (zh) * | 2016-08-31 | 2019-05-21 | 海赛普新能源高科技(江苏)有限公司 | 一种铅酸蓄电池电能回收方法及双向电子开关 |
CN106129484B (zh) * | 2016-08-31 | 2019-05-21 | 海赛普新能源高科技(江苏)有限公司 | 一种铅酸蓄电池电能回收装置 |
WO2018068243A1 (zh) | 2016-10-12 | 2018-04-19 | 广东欧珀移动通信有限公司 | 移动终端 |
US10333397B2 (en) * | 2017-07-18 | 2019-06-25 | Stmicroelectronics International N.V. | Multi-stage charge pump circuit operating to simultaneously generate both a positive voltage and a negative voltage |
US10205445B1 (en) * | 2017-09-25 | 2019-02-12 | Synopsys, Inc. | Clock duty cycle correction circuit |
CN107516749A (zh) * | 2017-10-10 | 2017-12-26 | 西南交通大学 | Zeta型双开关多路电池电压均衡拓扑及其控制方法 |
CN111756080B (zh) * | 2019-03-29 | 2021-12-14 | 深圳市瑞能实业股份有限公司 | 一种电池组均衡方法 |
JP7096194B2 (ja) * | 2019-04-04 | 2022-07-05 | トヨタ自動車株式会社 | 直列接続された太陽電池又はその他の電源用の動作点制御回路装置 |
US11081968B2 (en) * | 2019-06-12 | 2021-08-03 | Delta Electronics, Inc. | Isolated boost converter |
CN110350864B (zh) * | 2019-06-27 | 2022-03-29 | 西交利物浦大学 | 一种用于光伏组串部分遮蔽情况下的双开关电压均衡拓扑 |
CN110829533B (zh) * | 2019-11-15 | 2024-03-29 | 上海科技大学 | 一种控制简单且无自恢复效应误差的精确电池均衡电路 |
US11545841B2 (en) * | 2019-11-18 | 2023-01-03 | Semiconductor Components Industries, Llc | Methods and apparatus for autonomous balancing and communication in a battery system |
CN111490572B (zh) * | 2020-04-22 | 2021-09-28 | 杭州元色科技有限公司 | 采用倍压开关储能元件的均衡装置、方法及电池管理*** |
CN111800007A (zh) * | 2020-07-17 | 2020-10-20 | 广东工业大学 | 一种电压均衡电路 |
CN112265473B (zh) * | 2020-10-19 | 2021-11-30 | 珠海格力电器股份有限公司 | 一种驱动装置 |
US12040702B2 (en) * | 2021-06-24 | 2024-07-16 | Murata Manufacturing Co., Ltd. | Multi-level structures and methods for switched-mode power supplies |
US11646665B2 (en) | 2021-06-24 | 2023-05-09 | Psemi Corporation | Efficient bootstrap supply generators for multi-level power converters |
US11923765B2 (en) | 2021-11-01 | 2024-03-05 | Psemi Corporation | Multi-level power converters having a top and bottom high-voltage protective switches |
US11936291B2 (en) * | 2021-11-08 | 2024-03-19 | Psemi Corporation | Controlling charge-balance and transients in a multi-level power converter |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1132443A (ja) * | 1997-07-09 | 1999-02-02 | Sanken Electric Co Ltd | 充電装置 |
JP2011045162A (ja) | 2009-08-19 | 2011-03-03 | Japan Aerospace Exploration Agency | 蓄電セルの充電回路 |
JP2011199949A (ja) | 2010-03-17 | 2011-10-06 | Japan Aerospace Exploration Agency | 時比率制御が可能な直列接続蓄電セル用均一充電器 |
JP2012029436A (ja) * | 2010-07-22 | 2012-02-09 | Shindengen Electric Mfg Co Ltd | 電流共振型コンバータ及びその制御方法 |
JP2012046569A (ja) | 2010-08-24 | 2012-03-08 | Fujifilm Corp | 水性インク組成物、インクジェット記録方法及びインクジェット印画物 |
JP2012090366A (ja) * | 2010-10-15 | 2012-05-10 | Jtekt Corp | 電源装置及びこれを備えた電動パワーステアリング装置 |
JP2012186881A (ja) | 2011-03-03 | 2012-09-27 | Japan Aerospace Exploration Agency | 直列接続された蓄電セルの一石式電圧均等化回路 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028503A1 (de) * | 2006-06-21 | 2007-12-27 | Siemens Ag | Vorrichtung und Verfahren zum Laden eines Energiespeichers |
CN103609198B (zh) * | 2011-06-17 | 2016-10-19 | 皇家飞利浦有限公司 | 用于驱动负载的具有lc滤波器的单开关驱动器 |
-
2013
- 2013-05-28 JP JP2013112219A patent/JP6127290B2/ja not_active Expired - Fee Related
-
2014
- 2014-05-27 KR KR1020157033385A patent/KR102125595B1/ko active IP Right Grant
- 2014-05-27 US US14/892,860 patent/US10069323B2/en active Active
- 2014-05-27 CN CN201480029896.4A patent/CN105247757B/zh not_active Expired - Fee Related
- 2014-05-27 WO PCT/JP2014/063932 patent/WO2014192726A1/ja active Application Filing
- 2014-05-27 EP EP14804764.0A patent/EP3007314B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1132443A (ja) * | 1997-07-09 | 1999-02-02 | Sanken Electric Co Ltd | 充電装置 |
JP2011045162A (ja) | 2009-08-19 | 2011-03-03 | Japan Aerospace Exploration Agency | 蓄電セルの充電回路 |
JP2011199949A (ja) | 2010-03-17 | 2011-10-06 | Japan Aerospace Exploration Agency | 時比率制御が可能な直列接続蓄電セル用均一充電器 |
JP2012029436A (ja) * | 2010-07-22 | 2012-02-09 | Shindengen Electric Mfg Co Ltd | 電流共振型コンバータ及びその制御方法 |
JP2012046569A (ja) | 2010-08-24 | 2012-03-08 | Fujifilm Corp | 水性インク組成物、インクジェット記録方法及びインクジェット印画物 |
JP2012090366A (ja) * | 2010-10-15 | 2012-05-10 | Jtekt Corp | 電源装置及びこれを備えた電動パワーステアリング装置 |
JP2012186881A (ja) | 2011-03-03 | 2012-09-27 | Japan Aerospace Exploration Agency | 直列接続された蓄電セルの一石式電圧均等化回路 |
Non-Patent Citations (2)
Title |
---|
M. LINO; A. KUKITA: "Cell Voltage Equalizer Using Series Resonant Inverter and Voltage Multiplier for Series-Connected Supercapacitors", IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION, 2012, pages 672 - 677 |
See also references of EP3007314A4 |
Also Published As
Publication number | Publication date |
---|---|
EP3007314A4 (en) | 2017-03-01 |
EP3007314B1 (en) | 2019-03-06 |
KR102125595B1 (ko) | 2020-06-22 |
JP2014233128A (ja) | 2014-12-11 |
JP6127290B2 (ja) | 2017-05-17 |
CN105247757A (zh) | 2016-01-13 |
US20160118817A1 (en) | 2016-04-28 |
US10069323B2 (en) | 2018-09-04 |
EP3007314A1 (en) | 2016-04-13 |
KR20160012142A (ko) | 2016-02-02 |
CN105247757B (zh) | 2018-12-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6127290B2 (ja) | コンバータと多段倍電圧整流回路を併用した均等化機能付充放電器 | |
EP3425784B1 (en) | Dc-dc converter with modular stages | |
US20170163160A1 (en) | Modular battery arrays and associated methods | |
US9660523B2 (en) | System and method for reducing power loss in switched-capacitor power converters | |
JP6082969B2 (ja) | Pwm制御が可能なスイッチトキャパシタコンバータ | |
Upadhyay et al. | Derivation and characterization of switched-boost inverter | |
US10084378B2 (en) | Single-inductor multi-output converter | |
Chen et al. | A new bidirectional DC-DC converter with a high step-up/down conversion ratio for renewable energy applications | |
CN109617407B (zh) | 一种升压式串并联全谐振开关电容变换器 | |
Uno | High step-down converter integrating switched capacitor converter and PWM synchronous buck converter | |
Mahmoudi et al. | A high gain DC-DC topology based on two-winding coupled inductors featuring continuous input current | |
CN115833547A (zh) | 一种适用于宽频段脉冲负载的解耦电路及控制方法 | |
Hulea et al. | An improved bidirectional hybrid switched capacitor converter | |
Annapurani et al. | Parallel-charge series-discharge inductor-based voltage boosting technique applied to a rectifier-fed positive output DC-DC converter | |
Han et al. | Asymmetrical (n/m) X DC-DC converter for finer voltage regulation | |
Maroti et al. | A high gain DC-DC converter using voltage multiplier | |
Axelrod et al. | A family of modified zeta-converters with high voltage ratio for solar-pv systems | |
JP6679042B2 (ja) | 充電器及び充放電器 | |
Ranjana et al. | DC-DC buck converter through duality approach for current based loads | |
Nath | Input current ripple minimization in coupled SIDO boost converter by shift of gate pulses | |
JP6651910B2 (ja) | 太陽電池用コンバータシステム | |
He | Multilevel DC-DC power conversion system with multiple bridge modular switched-capacitor converter | |
Li et al. | Analysis and design of a 1-kW 3X interleaved switched-capacitor DC-DC converter | |
Babaei et al. | Calculation of switching current stress in high voltage gain boost dc-dc converter | |
Uno | Cascaded switched capacitor converters with selectable intermediate taps for supercapacitor discharger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14804764 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14892860 Country of ref document: US Ref document number: 2014804764 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20157033385 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |