KR20170067952A - Lossless energy recovery circuit - Google Patents
Lossless energy recovery circuit Download PDFInfo
- Publication number
- KR20170067952A KR20170067952A KR1020150174404A KR20150174404A KR20170067952A KR 20170067952 A KR20170067952 A KR 20170067952A KR 1020150174404 A KR1020150174404 A KR 1020150174404A KR 20150174404 A KR20150174404 A KR 20150174404A KR 20170067952 A KR20170067952 A KR 20170067952A
- Authority
- KR
- South Korea
- Prior art keywords
- battery
- transformer
- switch
- energy
- current
- Prior art date
Links
Images
Classifications
-
- 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
- H02M1/38—Means for preventing simultaneous conduction of switches
-
- 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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A circuit for a pulsed battery charger including a lossless energy regenerative circuit, which is an embodiment of the present invention, includes a receiving end connected to a battery charger, a charging mode for receiving a current from the battery charger and delivering the current to the battery, And an energy regenerator for regenerating the energy stored in the at least one capacitor in the charge mode in the charge mode and delivering the stored energy to the battery, And a transmitter for providing the battery with a current supplied from the battery charger.
Description
The invention belongs to the field of lossless energy recovery circuits, and in particular falls within the field of lossless energy recovery circuits for pulsed battery chargers.
Recently, a battery charging system is rapidly developing. However, the existing battery charging system has various disadvantages when charging by applying only a constant current. The existing battery charging system applies only the constant current with no time variation. When a constant current is applied in this manner, an ion layer is formed in the battery upon charging. When such an ion layer is formed, heat is generated in the battery or loss of energy occurs, and the current to be charged can not be increased. Therefore, in order to overcome these disadvantages, a pulse type charger is recently developed.
Conventionally, a voltage charged in the at least one capacitor in the form of a pulse in a discharge mode is discharged through a resistor, resulting in power loss, resulting in a reduction in overall efficiency and generation of heat. That is, a resistor is generally coupled to a conventional pulse-type charger, and energy is discharged through the resistor in a discharge mode, thereby causing power loss. Therefore, the conventional pulse type charger has a problem that the overall efficiency is reduced due to the resistance and heat is generated.
Accordingly, the present invention aims at solving the problem of replacing the resistor with a lossless energy regenerative circuit, thereby reducing the charging efficiency through energy discharge.
A circuit for a pulsed battery charger including a lossless energy regenerative circuit, which is an embodiment of the present invention, is intended to provide a circuit for a pulsed battery charger in which no power loss occurs, the overall charging efficiency is improved, and a heat generation problem does not occur.
A circuit for a pulsed battery charger including a lossless energy regenerative circuit, which is an embodiment of the present invention, includes a receiving end connected to a battery charger, a charging mode for receiving a current from the battery charger and delivering the current to the battery, And an energy regenerator for regenerating the energy stored in the at least one capacitor in the charge mode in the charge mode and delivering the stored energy to the battery, And a transmitter for providing the battery with a current supplied from the battery charger.
In the pulse-type battery charger circuit including the lossless energy recovery circuit, which is one embodiment of the present invention, the at least one switch can perform PWM (Pulse Width Modulation) operation.
Further, in the circuit for a pulsed battery charger including a lossless energy recovery circuit, which is one embodiment of the present invention, the at least one switch may be a pair of switches.
Further, in the circuit for a pulsed battery charger including a lossless energy recovery circuit, which is an embodiment of the present invention, the pair of switches may be turned on or off at the same time.
According to another aspect of the present invention, there is provided a circuit for a pulsed battery charger including a lossless energy recovery circuit, wherein the energy recovery unit includes a transformer.
In another aspect of the present invention, there is provided a circuit for a pulsed battery charger including a lossless energy recovery circuit, wherein the transformer includes a primary side and a secondary side, And the second side is connected to the transmitting end.
In another aspect of the present invention, there is provided a circuit for a pulse-type battery charger including a lossless energy regenerative circuit, wherein the energy regenerator is configured such that the first side of the at least one switch and the transformer forms a discharge loop of the capacitor .
In another aspect of the present invention, there is provided a circuit for a pulsed battery charger including a lossless energy regenerative circuit, wherein the energy regenerator is connected to one end and the other end of the primary side of the transformer to balance a magnetizing current of the transformer, And a pair of free wheeling diodes.
In another aspect of the present invention, there is provided a circuit for a pulsed battery charger including a lossless energy regenerative circuit, wherein the energy regenerator disconnects the secondary side of the transformer in the discharge mode, And a diode connected to one end of the secondary side of the transformer for allowing the primary side energy to flow into the battery.
According to the pulse-type battery charger circuit including the lossless energy regenerative circuit, which is one embodiment of the present invention, energy stored in the discharge mode in the at least one capacitor can be provided to the battery through the transmitter.
In addition, according to the pulse-type battery charger circuit including the lossless energy regenerative circuit, which is an embodiment of the present invention, the energy stored in the capacitor in the discharge mode is supplied from the charge mode to the battery, And there is no heat generation problem.
1 is a circuit diagram showing a circuit for a pulsed battery charger including a lossless energy recovery circuit, which is an embodiment of the present invention, is connected to a battery charger and a battery.
FIG. 2 is a circuit diagram illustrating a circuit for a pulse battery charger including a lossless energy recovery circuit according to an embodiment of the present invention. Referring to FIG.
3 is a timing chart showing the turn-on and turn-off operations of the switches according to the charge mode and the discharge mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to an embodiment of the present invention.
FIG. 4 is a circuit diagram illustrating a circuit for a pulse battery charger including a lossless energy recovery circuit according to another embodiment of the present invention.
FIGS. 5 and 6 are timing charts illustrating the turn-on and turn-off operations of the switches according to the charging mode and the discharging mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to another embodiment of the present invention.
7 is a circuit diagram showing a current flow in a charging mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to another embodiment of the present invention.
8 is a circuit diagram showing the flow of current when a pair of energy recovery circuit switches are turned on in a charge mode in a pulse battery charger circuit including a lossless energy recovery circuit according to another embodiment of the present invention.
9 is a circuit diagram showing a flow of current when a pair of energy recovery circuit switches are turned off in a charge mode in a pulse battery charger circuit including a lossless energy recovery circuit which is another embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In describing the present invention, the scope of the present invention is not limited to the following embodiments.
1 is a circuit diagram showing a circuit for a pulsed battery charger including a lossless energy recovery circuit, which is an embodiment of the present invention, is connected to a battery charger and a battery. Referring to FIG. 1, in the circuit for a pulsed battery charger according to an embodiment of the present invention, the current
At this time, the
The
The current pulse generation circuit control unit may control a charge mode in which a current is supplied from the
At this time, the current pulse generating circuit control unit may cause the
FIG. 2 is a circuit diagram illustrating a circuit for a pulse battery charger including a lossless energy recovery circuit according to an embodiment of the present invention. Referring to FIG. Referring to FIG. 2, the lossless
One end of the
One end of the at least one
One
And wherein the lossless energy recovery circuit (200) includes at least one switch (260, 262) to regenerate energy stored in the at least one capacitor (242, 244) in the charge mode in the charge mode, And an energy regenerating unit that transfers energy to the
One
And the pair of
The energy regenerating unit may include a
The energy regenerating unit may include a pair of freewheeling diodes connected to one end and the other end of the primary side of the transformer to balance the magnetizing current of the transformer. For example, as shown in FIG. 2, one
The energy regenerating unit may include a diode connected to one end of the secondary side of the transformer to disconnect the secondary side of the transformer in the discharging mode and to discharge the primary side energy of the transformer in the charging mode, . ≪ / RTI > For example, as shown in FIG. 2, the diode may be a
Therefore, according to the pulse-type battery charger circuit including the lossless energy regenerative circuit, which is one embodiment of the present invention, the energy stored in the discharge mode in the at least one capacitor can be provided to the battery through the transmitter . Conventionally, a voltage charged in the at least one capacitor in the form of a pulse in a discharge mode is discharged through a resistor, resulting in power loss, resulting in a reduction in overall efficiency and generation of heat. However, according to the pulse-type battery charger circuit including the lossless energy regenerative circuit, which is an embodiment of the present invention, the energy stored in the capacitor in the discharging mode is supplied from the charging mode to the battery, There is an effect that no heat generation problem occurs.
3, the operation of a circuit for a pulsed battery charger including a lossless energy recovery circuit, which is an embodiment of the present invention, will be described.
3 is a timing chart showing the turn-on and turn-off operations of the switches according to the charge mode and the discharge mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to an embodiment of the present invention.
3, in accordance with charging
In the charging
The
Since the
The at least one switch 260 (Q3), 262 (Q4) connected to the
The discharge mode will be described with reference to FIG. In the discharge mode, the bi-directional switch 230 (Q1) is turned off and no current flows, and the at least one switch 260 (Q3), 262 (Q4) is also turned off so that no current flows. However, the discharge switches 250 and Q2 perform the turn-on and turn-off
FIG. 4 is a circuit diagram illustrating a circuit for a pulse battery charger including a lossless energy recovery circuit according to another embodiment of the present invention. Referring to FIG. 4, the lossless
One end of the
One end of the at least one
One
And wherein the lossless energy recovery circuit (200) includes at least one switch (260, 262) to regenerate the energy stored in the at least one capacitor (240) in the charge mode in the charge mode, And an energy regenerating unit for transmitting the energy to the
One
And the pair of
The energy regenerating unit may include a
The energy regenerating unit may include a pair of freewheeling diodes connected to one end and the other end of the primary side of the transformer to balance the magnetizing current of the transformer. 4, one
The energy regenerating unit may include a diode connected to one end of the secondary side of the transformer to disconnect the secondary side of the transformer in the discharging mode and to discharge the primary side energy of the transformer in the charging mode, . ≪ / RTI > For example, as shown in FIG. 4, the diode may be a
Therefore, according to the pulse-type battery charger circuit including the lossless energy regenerative circuit according to another embodiment of the present invention, the energy stored in the discharge mode in the at least one capacitor can be provided to the battery through the transmitter . That is, according to the pulse-type battery charger circuit including the lossless energy recovery circuit, which is another embodiment of the present invention, the energy stored in the capacitor in the discharge mode is supplied from the charge mode to the battery, There is an effect that no heat generation problem occurs.
5 to 9, a circuit for a pulsed battery charger including a lossless energy recovery circuit, which is another embodiment of the present invention, will be described in more detail.
FIGS. 5 and 6 are timing charts showing the turn-on and turn-off operations of the switches according to the charge mode and the discharge mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to another embodiment of the present invention. 7 is a circuit diagram showing a current flow in a charging mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to another embodiment of the present invention. 8 is a circuit diagram showing a flow of current when a pair of switches is turned on in a charge mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to another embodiment of the present invention. 9 is a circuit diagram showing a flow of current when a pair of switches is turned off in a charging mode in a circuit for a pulsed battery charger including a lossless energy recovery circuit according to another embodiment of the present invention. Here, the circuit elements of the circuit diagrams shown in FIGS. 7 to 9 are the same as those of FIG. 4 described above, and a detailed description thereof will be omitted.
5, according to the charging
In the charging
FIG. 6 shows a process in which the at least one
The flow of current in the charging
The at least one switch 260 (Q3), 262 (Q4) connected to the
Conversely, if the at least one switch 260 (Q3), 262 (Q4) is turned on at the same time as a pair of switches, no current may flow through the discharge loop. FIG. 9 shows the flow of currents turned off at the same time when the at least one switch 260 (Q3), 262 (Q4) in the charging mode makes a pair of switches. 9, the at least one switch 260 (Q3), 262 (Q4) is turned off so that no current flows in the discharge loop described in FIG. 8, and a pair of diodes Current flows through the
Therefore, according to the circuit for a pulsed battery charger including a lossless energy recovery circuit, which is another embodiment of the present invention, the at least one switch 260 (Q3), 262 (Q4) A current flows through the discharge loop and can be supplied to the battery connected to the transmitter through the transformer. In contrast, when at least one of the switches 260 (Q3) and 262 (Q4) is turned on and off at the same time, no current flows through the discharge loop, but a current flows through a pair of diodes connected to the transmitter, Current flows to the transmitting end.
The discharge mode will be described with reference to FIG. In the discharge mode, the bi-directional switch 230 (Q1) is turned off and no current flows, and the at least one switch 260 (Q3), 262 (Q4) is also turned off so that no current flows. However, the discharge switches 250 and Q2 perform the
Therefore, according to the pulse-type battery charger circuit including the lossless energy regenerative circuit according to another embodiment of the present invention, the energy stored in the capacitor in the discharge mode is supplied from the charge mode to the battery, There is an effect that no heat generation problem occurs.
100: current pulse generating circuit
200: Lossless energy recovery circuit
260 and 262: at least one switch
270: Transformer
Claims (9)
A receiver connected to the battery charger;
A controller for controlling a charging mode in which a current is supplied from the battery charger to the battery, and a discharging mode in which the battery is discharged;
An energy regenerating unit including at least one switch and regenerating energy stored in at least one capacitor in the charge mode in the charge mode and transferring the stored energy to the battery;
A transmitting terminal connected to the battery and providing a current supplied from the battery charger to the battery;
/ RTI > wherein the energy recovery circuit comprises:
Wherein the at least one switch performs a PWM (Pulse Width Modulation) operation.
Wherein the at least one switch is a pair of switches.
And the pair of switches are turned on or off at the same time.
Wherein the energy regenerating unit includes a transformer.
Wherein the transformer includes a primary side and a secondary side, the primary side is connected to the at least one switch, and the secondary side is connected to the transmitting terminal.
Wherein the energy regenerating unit is configured such that the at least one switch and the primary side of the transformer form a discharge loop of the capacitor.
Wherein the energy regenerating unit includes a pair of freewheeling diodes connected to one end and the other end of the primary side of the transformer for balancing a magnetizing current of the transformer.
The energy regenerating unit disconnects the secondary side of the transformer in the discharging mode and a diode connected to one end of the secondary side of the transformer to discharge the primary side energy of the transformer in the charging mode Wherein the energy recovery circuit comprises:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150174404A KR101816363B1 (en) | 2015-12-08 | 2015-12-08 | Lossless energy recovery circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150174404A KR101816363B1 (en) | 2015-12-08 | 2015-12-08 | Lossless energy recovery circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170067952A true KR20170067952A (en) | 2017-06-19 |
KR101816363B1 KR101816363B1 (en) | 2018-01-10 |
Family
ID=59279337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150174404A KR101816363B1 (en) | 2015-12-08 | 2015-12-08 | Lossless energy recovery circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101816363B1 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2403609A (en) * | 2003-07-01 | 2005-01-05 | Univ Leicester | Pulse charging an electrochemical device |
-
2015
- 2015-12-08 KR KR1020150174404A patent/KR101816363B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR101816363B1 (en) | 2018-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8841883B2 (en) | Battery heating circuits and methods with resonance components in series using energy transfer and voltage inversion | |
KR101917913B1 (en) | Apparatus for balancing battery stack | |
US8941358B2 (en) | Heating circuits and methods based on battery discharging and charging using resonance components in series and freewheeling circuit components | |
KR101863717B1 (en) | Charge equalization system for batteries | |
RU2009116280A (en) | POWER SUPPLY DEVICE AND VEHICLE WITH A POWER SUPPLY DEVICE | |
CN104811047A (en) | Bidirectional direct-current/direct-current converter and control method thereof | |
CN112054665A (en) | Converter | |
CN110492621A (en) | Constant voltage/constant current type wireless charging system based on transmitting terminal TS/FS structure changes compensation network | |
CN111200307A (en) | Energy balance control device, battery system and energy balance control method thereof | |
US11951843B2 (en) | Power supply device for vehicle | |
CN204103532U (en) | A kind of two-way charger | |
CN107000600B (en) | Device for charging a battery unit and operating a load unit via an inverter | |
CN113745703A (en) | Heating method and device of power battery and vehicle | |
CN110380492B (en) | Battery charging control circuit and electronic equipment | |
KR20170039477A (en) | Apparatus for balancing battery stack | |
CN112187056B (en) | Power supply system and DC-DC converter | |
KR101816363B1 (en) | Lossless energy recovery circuit | |
US6534955B1 (en) | Pulse charger | |
KR101337242B1 (en) | Rapid charger for battery of pulse type having energy recovery capability and the method of controlling the charger | |
CN113196641B (en) | Voltage regulation module, charging module and charging pile | |
KR101727717B1 (en) | Add-on type current pulse generating circuit | |
GB2565091A (en) | Multiple output battery system with alternator architectures | |
JP5604947B2 (en) | Power supply device and voltage adjustment method | |
KR20210012224A (en) | Power system | |
GB2565090A (en) | Multiple output battery system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant |