WO2017022601A1 - Dispositif de charge - Google Patents

Dispositif de charge Download PDF

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Publication number
WO2017022601A1
WO2017022601A1 PCT/JP2016/072096 JP2016072096W WO2017022601A1 WO 2017022601 A1 WO2017022601 A1 WO 2017022601A1 JP 2016072096 W JP2016072096 W JP 2016072096W WO 2017022601 A1 WO2017022601 A1 WO 2017022601A1
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WO
WIPO (PCT)
Prior art keywords
converter
voltage
output
power
charging
Prior art date
Application number
PCT/JP2016/072096
Other languages
English (en)
Japanese (ja)
Inventor
永呉 岸本
庄司　浩幸
尊衛 嶋田
高橋　直也
史宏 佐藤
門田　圭司
Original Assignee
日立オートモティブシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Priority to JP2017532532A priority Critical patent/JPWO2017022601A1/ja
Publication of WO2017022601A1 publication Critical patent/WO2017022601A1/fr

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    • 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
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • 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
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Definitions

  • the present invention relates to a charging device.
  • Patent Document 1 discloses a charging device that includes an AC-DC converter and a resonant DC-DC converter, and aims to improve conversion efficiency by increasing the input voltage of the resonant DC-DC converter as the battery voltage increases. Has been.
  • the output power difference between the first converter that converts the input power to a DC voltage and outputs it, and the second converter that steps down the DC voltage on the output side of the first converter and supplies it to the battery As a result, the voltage between the first converter and the second converter increases, and the reliability of the first converter and the second converter may decrease.
  • the charging device includes a first converter that converts input power into a DC voltage and outputs the output, and a control unit that outputs a command value to the first converter and controls the power on the output side of the first converter.
  • a second converter that steps down the DC voltage on the output side of the first converter and supplies the DC voltage to the battery, and the control unit outputs a command value so that the voltage on the output side of the first converter drops to a predetermined voltage. Then, the first converter is controlled.
  • (A) is a graph which shows the factor by which a link voltage rises. It is a graph which shows suppression of a raise of a link voltage. It is a graph which shows suppression of a raise of a link voltage. It is a figure which shows control of a charge control apparatus. It is a system configuration figure in a 2nd embodiment.
  • FIG. 1 is a system configuration diagram in which the charging device 104 according to the first embodiment is applied to an electric vehicle 101.
  • the charging device 104 is supplied with AC power from the AC power source 100.
  • the AC power supply 100 is a power supply provided at a charging stand or at home.
  • Charging device 104 uses AC power supply 100 as a power source, converts AC power into DC power, and charges battery 102.
  • the electric vehicle 101 is a vehicle using the battery 102 as a power source. Although not shown, the electric power of the battery 102 is supplied to the inverter device, and the inverter device converts the electric power of the battery 102 from direct current to alternating current and supplies it to the motor. The electric vehicle 101 travels using this motor as a power source.
  • Vehicle ECU 103 is a device that is mounted in electric vehicle 101 and controls the operation of the electric vehicle.
  • the vehicle ECU 103 sends operation command values such as a charging power command value Pchg *, a charging current limit value Ichglim *, and a charging voltage command value Vchg * to the charging control device 105 in the charging device 104.
  • the charging control device 105 is a device that controls the charging device 104, and based on a command value received from the vehicle ECU 103, the AC-DC converter 106, the first converter 107, and the second converter 108 that constitute the charging device 104. Take control.
  • the AC-DC converter 106 is a power converter that converts AC power into DC power.
  • the AC voltage supplied from the AC power supply 100 is full-wave rectified by diodes D11 to D14 connected in a bridge.
  • the diodes D11 and D12 and the diodes D13 and D14 are connected in series, and the diodes connected in series are connected in parallel to form a bridge connection.
  • a connection point between the diodes D11 and D12 connected in series and a connection point between the diodes D13 and D14 connected in series is an AC terminal.
  • the AC power supply 100 is connected to this AC terminal.
  • the connection points at both ends of the diodes D11 and D12 connected in series and the diodes D13 and D14 connected in series are DC terminals.
  • the full-wave rectified voltage is input to a booster circuit including a reactor L1 connected to a DC terminal, a switching element Q10, a diode D10, and a capacitor C1.
  • the switching element Q10 is switched on and off, and the full-wave rectified voltage is boosted and output as a smoothed DC voltage. Note that the switching operation signal of the switching element Q10 is output from the charge control device 105.
  • the first converter 107 is a power converter that converts a DC voltage obtained by boosting and smoothing a full-wave rectified voltage into an insulated DC voltage.
  • the first converter 107 includes switching elements Q1 to Q4 that are bridge-connected.
  • the switching elements Q1 to Q4 are bridge-connected by connecting in parallel a first arm in which switching elements Q1 and Q2 are connected in series and a second arm in which switching elements Q3 and Q4 are connected in series.
  • the both ends of the first arm are between the DC voltage terminals, and the series connection point of the switching elements Q1 and Q2 and the series connection point of the switching elements Q3 and Q4 are between the AC voltage terminals.
  • anti-parallel diodes D1 to D4 are connected to the switching elements Q1 to Q4, respectively.
  • the first converter 107 has a primary side winding in which a resonance capacitor Cr1 and a resonance reactor Lr1 are connected in series at a connection point between the switching element Q1 and the switching element Q2, and this primary side winding is magnetically coupled.
  • a transformer T1 including a secondary winding is provided.
  • the secondary winding of the transformer T1 is provided with bridge-connected diodes D21 to D24. Between the series connection point of the diodes D21 and D22 and the series connection point of the diodes D23 and D24 is connected between the AC terminals and connected to the secondary winding.
  • a first diode leg in which diodes D21 and D22 are connected in series and a second diode leg in which diodes D23 and D24 are connected in series are connected in parallel.
  • a voltage detector VT1 and a link capacitor Clink are connected in parallel between both terminals of the first and second diode legs connected in parallel. The voltage detector VT1 detects the output voltage of the rectifier circuit composed of the diodes D21 to D24 and outputs the detected voltage value to the charge control device 105.
  • the first converter 107 configured as described above receives the output voltage of the AC-DC converter 106, switches the switching elements Q1 to Q4 connected in a bridge with an ON / OFF ratio of about 50%, and the resonant reactor Lr1.
  • a resonance current is passed through the primary side of the resonance capacitor Cr1 and the transformer T1.
  • the current generated on the secondary side of the transformer T1 is full-wave rectified by the bridge-connected diodes D21 to D24, smoothed by the link capacitor Clink, and DC voltage Outputs Vlink.
  • the first converter 107 is an isolated resonance converter, and the first converter 107 fixes the duty ratio of the gate signal applied to the switching elements Q1 to Q4 to about 50% and changes the switching frequency to change the output voltage.
  • the charging control device 105 outputs power corresponding to the charging power command value Pchg1 * by controlling the switching elements Q1 to Q4 based on a charging power command value Pchg1 * described later.
  • a current detector CT1 for detecting a current that is full-wave rectified by the diodes D21 to D24 is provided. The current detector CT1 outputs the detected current value to the charge control device 105.
  • the second converter 108 is a power converter that steps down the DC voltage Vlink output from the first converter 107 and outputs a DC voltage.
  • the DC voltage Vlink is applied to the switching elements Q5 and Q6 connected in series.
  • Switching elements Q5 and Q6 are ON / OFF controlled by a control signal from charge control device 105.
  • anti-parallel diodes D4 and D5 are connected to the switching elements Q5 and Q6, respectively.
  • a reactor L2 and a capacitor C2 are connected to a connection point between the switching elements Q5 and Q6, and together with the switching elements Q5 and Q6, a step-down circuit is configured.
  • the battery 102 is charged by the output voltage of the step-down circuit.
  • Voltage detector VT ⁇ b> 2 detects voltage Vbatt of battery 102 and outputs the detected voltage value to charge control device 105.
  • a current detector CT2 that detects the current of the battery 102 is provided.
  • the current detector CT ⁇ b> 2 outputs the detected current value to the charging control device 105.
  • the second converter 108 configured in this way performs switching operation by controlling the switching elements Q5 and Q6 to turn on and off, and makes the output voltage of the first converter 107 rectangular.
  • the rectangular wave voltage is smoothed by the reactor L2 and the capacitor C2, and a DC voltage is output.
  • the input voltage of the second converter 108 and the output voltage of the second converter 108 can be made substantially equal by fixing the switching element Q5 to ON and fixing the switching element Q6 to OFF.
  • the charging control device 105 receives the charging power command value Pchg *, the charging current limit value Ichglim *, and the charging voltage command value Vchg * from the vehicle ECU 103, and operates the first converter 107 and the second converter 108.
  • the charging power command value Pchg * and the charging voltage command value Vchg * are target values for causing the charging device 104 to follow these values
  • the charging current limit value Ichglim * is a battery 102, a relay, or the like. It means the maximum current value that can be passed from the viewpoint of protection.
  • the charging device 104 converts AC power input from the AC power supply 100 into DC power by the AC-DC converter 106, and outputs the AC-DC converter 106 to DC power by the first converter 107. Convert to The output of the first converter 107 is converted to DC power by the second converter 108 and the battery 102 is charged.
  • the first converter 107 performs constant power control of charging power and constant voltage control of the battery voltage Vbatt
  • the second converter 108 performs constant current control of charging current and constant voltage control of the link voltage Vlink.
  • Fig. 2 (a) and (b) are graphs showing factors that increase the link voltage.
  • the horizontal axis represents the battery voltage Vbatt
  • the vertical axis represents power.
  • the solid line indicates the power P1out output from the first converter 107
  • the broken line indicates the power P2out output from the second converter.
  • the electric power P1out output from the first converter 107 is constant so as to follow the charging power command value Pchg *, whereas the electric power P2out output from the second converter 108 includes the battery voltage Vbatt and the charging current limit value Ichglim. Determined by the product of *.
  • the power P2out output from the second converter 108 is determined by the charging current that can flow to the maximum with respect to the current battery voltage Vbatt.
  • the power P2out output by the second converter 108 which is a broken line
  • the power P1out output by the first converter 107 which is a solid line
  • a power difference ⁇ P occurs during
  • the maximum battery voltage VbattL at which the power difference ⁇ P occurs is a value obtained by dividing the charging power command value Pchg * by the charging current limit value Ichglim *.
  • This power difference ⁇ P becomes surplus power Pdump of the output of the first converter 107 with respect to the output of the second converter 108, and increases the link voltage Vlink of the output of the first converter 107.
  • FIG. 2B shows the battery voltage Vbatt on the horizontal axis and the link voltage Vlink on the vertical axis.
  • the rising voltage Vraise of the link voltage Vlink due to the surplus power Pdump is expressed by the following equation (1).
  • Clink represents the capacitance of the link capacitor Clink
  • t represents time.
  • the switching elements Q5 and Q6 of the second converter 108 are switched in a range where the battery voltage is low, and the link voltage Vlink which is the output of the first converter 107 is stepped down to reduce the battery 102. Charge the battery. In the range where the battery voltage is high, the switching element Q5 of the second converter 108 is fixed on, the switching element Q6 is fixed off, and the output of the first converter 107 is passed through to charge the battery 102. Since there is an operation in a range where the battery voltage is high, the first converter 107 needs to perform constant power control of the charging power.
  • FIG. 3 (a) and 3 (b) are graphs showing that an increase in link voltage is suppressed.
  • FIG. 3A shows the battery voltage Vbatt on the horizontal axis and the power on the vertical axis.
  • the solid line indicates the power P1out output from the first converter 107
  • the broken line indicates the power P2out output from the second converter 108.
  • FIG. 3B shows the battery voltage Vbatt on the horizontal axis and the link voltage Vlink on the vertical axis.
  • the power P1out of the first converter is represented by a dotted line in FIG. 2 (indicated by a dotted line) so that the power difference ⁇ P (surplus power Pdump) does not occur.
  • the value is reduced as indicated by the solid line from the value of a), and the power P2out of the second converter indicated by the broken line is followed.
  • FIG. 3B By suppressing the surplus power Pdump in this way, as shown in FIG. 3B, the rise of the link voltage Vlink is suppressed, and the link voltage Vlink is changed from the original state of FIG. 2B shown by the dotted line to the solid line. As shown, it can be reduced to follow the link voltage Vlink *. Thereby, the charging apparatus 104 can be continuously operated safely.
  • the surplus power Pdump is reduced by reducing the power P1out output from the first converter 107.
  • the power P1out output from the first converter 107 is changed from a state indicated by a dotted line to a state indicated by a solid line.
  • the charge control device 105 controls the power command value to the first converter 107.
  • the electric power P1out output from the first converter 107 follows the electric power P2out output from the second converter 108.
  • the rise of the link voltage Vlink can be suppressed so as to change from the state indicated by the dotted line to the state indicated by the solid line.
  • FIG. 4 is a diagram illustrating control of the charging control device 105 by functional blocks.
  • the link voltage suppression control unit 301 includes an FF control unit 302 and an FB control unit 303.
  • the FF control unit 302 calculates the power that can be output from the second converter 108 that is equivalent to the power that can be output from the first converter 107.
  • the electric power that can be output from the second converter 108 is obtained by integrating the battery voltage Vbatt detected by the voltage detector VT2 (see FIG. 1) and the charging current limit value Ichglim * by the integrator 304 and calculating the value Pchglink__ff.
  • the FB control unit 303 obtains the power of the first converter 107 to be reduced with respect to the increase of the link voltage Vlink.
  • An adder / subtractor 306 obtains a deviation between the link voltage command value Vlink * and the link voltage Vlink detected by the voltage detector VT1 (see FIG. 1). This deviation is calculated by the PI controller 307, converted into the amount of power to be reduced, and the power Plink_fb to be reduced is obtained.
  • the link voltage suppression control amount Pchglink is obtained by subtracting the power Plink_fb to be reduced obtained by the FB control unit 302 by the adder / subtractor 305 from the outputtable power Pchglink_ff obtained by the FF control unit 302.
  • the electric power correction control unit 311 calculates electric power to compensate for the shortage of the charging power Pchg output from the charging device 104 with respect to the charging power command value Pchg * given from the vehicle ECU 103.
  • Charging power Pchg output from charging device 104 is obtained from the product of battery voltage Vbatt detected by voltage detector VT2 (see FIG. 1) and charging current Ichg detected by current detector CT2 (see FIG. 1). .
  • the charging power Pchg is subtracted from the charging power command value Pchg * given from the vehicle ECU 103 by the adder / subtractor 313 to obtain a deviation.
  • the obtained deviation is converted into electric power by the PI controller 314, and the upper / lower limiter 315 performs the upper limit with the maximum power loss of the second converter 108 and the lower limit with 0 to obtain the power correction amount Pcomp.
  • the charge power command value Pchg2 * is obtained by adding the power correction amount Pcomp to the charge power command value Pchg * using the adder / subtractor 316.
  • the upper and lower limiter 308 limits the charging power command value Pchg2 * to the upper limit based on the link voltage suppression control amount Pchglink determined by the link voltage suppression control unit 301, and determines the final charging power command value Pchg1 *.
  • the charge power command value Pchg1 * subjected to link voltage suppression is when the link voltage suppression control does not work, that is, when the battery voltage Vbatt and the charge current limit value Ichglim * are equal to or greater than the charge power command value Pchg * provided from the vehicle ECU 103.
  • the charging power command value Pchg * given from the vehicle ECU 103 is obtained.
  • the charging power command value Pchg1 * subjected to link voltage suppression is received by the link voltage suppression control unit 301.
  • the obtained value Pchg1 * is obtained.
  • the charging control device 105 controls the switching elements Q1 to Q4 of the first converter 107 based on the charging power command value Pchg1 *. Thereby, the first converter 107 outputs power corresponding to the charging power command value Pchg1 *.
  • the power P1out output from the first converter 107 changes from the state indicated by the dotted line to the state indicated by the solid line.
  • the power command value to the first converter 107 is controlled.
  • a raise can be suppressed so that link voltage Vlink may be in the state shown with a continuous line from the state shown with a dotted line.
  • FIG. 5 is a system configuration diagram in the second embodiment.
  • a first converter 107a is shown instead of the first converter 107 shown in FIG. 1, and the other configurations are the same as those in FIG.
  • the first converter 107a converts the DC voltage into an insulated DC voltage by controlling the phase of the first arm Leg1 composed of the switching elements Q1a and Q2a and the second arm Leg2 composed of the switching elements Q3a and Q4a. To do.
  • the ON / OFF ratio of the switching elements Q1a to Q4a is about 50%, and the ON / OFF states of the switches of the switching elements Q1a and Q2a and Q3a and Q4a are in a complementary relationship.
  • the output of the first converter 107a is increased by increasing the time during which the switching elements Q1a and Q4a and the switching elements Q2a and Q3a are simultaneously turned ON, and the output of the first converter 107a is decreased by decreasing the ON time. .
  • the first converter 107a switches the switching elements Q1a to Q4a with respect to the input voltage Vin, thereby causing a current to flow on the primary side of the transformer T1a and generating a current on the secondary side of T1a.
  • the current generated on the secondary side of the transformer T1a is full-wave rectified by the bridge-connected diodes D21a to D24a, and smoothed by the reactor L1a and the capacitor Clinka to generate the output voltage Vout.
  • the first converter 107 in the first embodiment shown in FIG. 1 may have poor control characteristics because the relationship between the switching frequency and the input / output ratio of the first converter 107 is non-linear. For example, this is the case when the output voltage is lowered at light load.
  • the first converter 107a in the second embodiment shown in FIG. 5 fixes the switching frequency of the gate signal applied to the switching elements Q1a to Q4a to an arbitrary frequency, and sets the duty ratio of the switching period of the switching element. The output is controlled by changing it. In this duty control, since the relationship between the duty ratio and the input / output ratio of the first converter 107a is linear, the control characteristics are good.
  • the switching frequency of the gate signal applied to the switching elements Q1a to Q4a is fixed to an arbitrary frequency
  • the duty ratio is also fixed to 50%
  • the output is controlled by changing the phase difference between Leg1 and Leg2 that perform complementary switching. You can also.
  • the phase difference control since the relationship between the phase difference and the input / output ratio is linear, the control characteristics are good.
  • the charging device 104 converts the input power into a DC voltage and outputs it, and outputs a command value to the first converter 107 to control the power on the output side of the first converter 107.
  • a second converter 108 that steps down a DC voltage on the output side of the first converter 107 and supplies the DC voltage to the battery 102.
  • the charge control device 105 includes a voltage on the output side of the first converter 107.
  • the first converter 107 is controlled by outputting a command value so that the voltage drops to a predetermined voltage. Thereby, the charging device which charges with high efficiency can be provided.
  • the charging control device 105 controls the first converter 107 by outputting a command value so that the power output from the first converter 107 follows the power output from the second converter 108. Thereby, the rise in the voltage output from the first converter 107 can be suppressed.
  • the charging control device 105 A command value is output to control the first converter 107 so that the voltage on the output side of the converter 107 drops to a predetermined voltage. As a result, it is possible to suppress an increase in voltage output from the first converter 107 when the battery voltage is low.
  • the first converter 107a changes the duty ratio of the switching period of the switching elements constituting the first converter 107a to lower the output voltage to a predetermined voltage. Thereby, the voltage output from the first converter 107a can be controlled.
  • the first converter 107a is composed of a first arm Leg1 and a second arm Leg2 made of bridge-connected switching elements, and changes the phase difference between the first arm Leg1 and the second arm Leg2 based on the command value. Then, the output side voltage is lowered to a predetermined voltage. Thereby, the voltage output from the first converter 107a can be controlled.
  • the present invention is not limited to the above-described embodiment, and other forms conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention as long as the characteristics of the present invention are not impaired. .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'objet de la présente invention est d'améliorer la fiabilité d'un dispositif de charge, tout en maintenant une haute efficacité de charge de batterie. Lorsqu'une tension de batterie Vbatt est inférieure à VbattL, une situation dans laquelle un surplus d'énergie Pdump est généré, une valeur de commande de tension envoyée à un premier convertisseur 107 est commandée de telle sorte qu'une puissance délivrée P1out fournie en sortie par le premier convertisseur 107 passe de l'état indiqué par la ligne en pointillé à l'état indiqué par la ligne continue. Par ce moyen, la puissance délivrée P1out fournie en sortie par le premier convertisseur 107 suit une puissance délivrée P2out fournie en sortie par un second convertisseur 108. En conséquence, une augmentation d'une tension de liaison Vlink peut être supprimée de telle manière que la tension de liaison Vlink passe de l'état indiqué par la ligne en pointillé à l'état indiqué par la ligne continue.
PCT/JP2016/072096 2015-08-06 2016-07-28 Dispositif de charge WO2017022601A1 (fr)

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Application Number Priority Date Filing Date Title
JP2017532532A JPWO2017022601A1 (ja) 2015-08-06 2016-07-28 充電装置

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JP2015-155624 2015-08-06
JP2015155624 2015-08-06

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WO2017022601A1 true WO2017022601A1 (fr) 2017-02-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109050313A (zh) * 2018-08-21 2018-12-21 北京鼎翰科技有限公司 一种能够预防触电的新能源汽车充电装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012090515A (ja) * 2010-10-19 2012-05-10 Samsung Electro-Mechanics Co Ltd 可変周波数力率制御充電装置
JP2014093910A (ja) * 2012-11-06 2014-05-19 Nippon Steel & Sumikin Texeng Co Ltd 二次電池用双方向電源装置及びその制御方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3040040B2 (ja) * 1993-02-16 2000-05-08 ローム株式会社 直流安定化電源回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012090515A (ja) * 2010-10-19 2012-05-10 Samsung Electro-Mechanics Co Ltd 可変周波数力率制御充電装置
JP2014093910A (ja) * 2012-11-06 2014-05-19 Nippon Steel & Sumikin Texeng Co Ltd 二次電池用双方向電源装置及びその制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109050313A (zh) * 2018-08-21 2018-12-21 北京鼎翰科技有限公司 一种能够预防触电的新能源汽车充电装置

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