WO2022164164A1 - 배터리 스위치 구동회로 - Google Patents
배터리 스위치 구동회로 Download PDFInfo
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- WO2022164164A1 WO2022164164A1 PCT/KR2022/001262 KR2022001262W WO2022164164A1 WO 2022164164 A1 WO2022164164 A1 WO 2022164164A1 KR 2022001262 W KR2022001262 W KR 2022001262W WO 2022164164 A1 WO2022164164 A1 WO 2022164164A1
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- switch
- battery
- capacitor
- input terminal
- voltage
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- 239000003990 capacitor Substances 0.000 claims abstract description 112
- 238000000034 method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 12
- 238000004088 simulation Methods 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 6
- 230000002457 bidirectional effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/689—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors with galvanic isolation between the control circuit and the output circuit
- H03K17/691—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors with galvanic isolation between the control circuit and the output circuit using transformer coupling
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
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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
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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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
- 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
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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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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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
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/04—Modifications for accelerating switching
- H03K17/041—Modifications for accelerating switching without feedback from the output circuit to the control circuit
- H03K17/0412—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the control circuit
- H03K17/04123—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the control circuit in field-effect transistor switches
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/10—Modifications for increasing the maximum permissible switched voltage
- H03K17/102—Modifications for increasing the maximum permissible switched voltage in field-effect transistor switches
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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
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
- H03K17/79—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar semiconductor switches with more than two PN-junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
Definitions
- the present invention relates to a battery switch driving circuit, and more particularly, to a battery switch driving circuit for driving a battery switch using a switch, a capacitor, and a diode.
- FIG. 1 is a system using a 48 V battery and a 12 V battery.
- a 48 V battery may be charged using a 12 V battery through a DC-DC converter, or a 12 V battery may be charged using a 48 V battery.
- a semiconductor switch FET, IGBT
- FET field-effect transistor
- a high-side switch driver for driving the semiconductor switch is required. You can create a power source and turn on a switch with that power source.
- a circuit for driving such a high-side semiconductor switch requires a buffer for amplifying a PWM signal and a transformer for isolation, which has disadvantages in that product price increases and product size increases.
- the technical problem to be solved by the present invention is to provide a battery switch driving circuit for driving a battery switch using a switch, a capacitor, and a diode.
- a battery switch driving circuit includes a first battery input terminal and a second battery input terminal; a converter positioned between the first battery input terminal and the second battery input terminal; a first switch positioned between the second battery input terminal and the converter to cut off a power input of the second battery input terminal when turned off; and a switch driving unit for turning on the first switch, wherein the switch driving unit includes: a first capacitor charged and discharged according to on/off of a second switch operated by a PWM signal; and a second capacitor that is charged according to on/off of the second switch by the voltage charged in the first capacitor to turn on the first switch.
- the first capacitor may have one end connected to the first battery input terminal and the other end connected to the second switch.
- the first capacitor may be connected to the first battery input terminal through a first resistor and a first diode.
- the first capacitor may have one end connected to one end of the second capacitor and the other end connected to the other end of the second capacitor.
- the other end of the first capacitor is connected to the other end of the second capacitor through a second resistor and a second diode, and one end of the first capacitor is connected to one end of the second capacitor through a third resistor and a third diode.
- the first switch when the second capacitor has one end connected to the gate of the first switch and the other end connected to the source, and is charged more than the gate threshold of the first switch, the first switch may be turned on.
- the first capacitor may have one end connected to a system power input terminal or the second battery input terminal, and the other end connected to the second switch.
- a clamping circuit for clamping the voltage input from the second battery input terminal to the first battery voltage.
- a third switch connected to the first battery input terminal through an optocoupler and a fourth resistor and turned on and off according to a first switch-off signal, wherein the optocoupler forms a closed loop with the second capacitor
- the third switch when the third switch is turned on, the voltage of the second capacitor may be discharged.
- a battery switch driving circuit includes a first battery input terminal; a second battery input terminal having a different input battery voltage from the first battery input terminal; a converter positioned between the first battery input terminal and the second battery input terminal; a fourth switch and a fifth switch positioned between the second battery input terminal and the converter to block power input in opposite directions when turned off; and a switch driving unit for turning on the fourth switch and the fifth switch, wherein the switch driving unit includes: a first capacitor charged and discharged according to on/off of a second switch operated by a PWM signal; and a second capacitor that is charged according to on/off of the second switch by the voltage charged in the first capacitor to turn on the fourth switch or the fifth switch.
- a semiconductor switch using a switch, a capacitor, and a diode.
- it can be configured as Back-to-Back, and the switch can be quickly turned off when necessary.
- FIG. 1 shows a battery switch driving circuit according to a comparative embodiment of the present invention.
- FIG. 2 is a block diagram of a battery switch driving circuit according to an embodiment of the present invention.
- FIG. 3 is a block diagram of a battery switch driving circuit according to an embodiment of the present invention.
- FIG. 4 is a circuit diagram of a battery switch driving circuit according to an embodiment of the present invention.
- 5 to 8 are diagrams for explaining the operation of the embodiment of FIG. 4 .
- FIG. 9 is a circuit diagram of a battery switch driving circuit according to another embodiment of the present invention.
- FIG. 10 and 11 are diagrams for explaining the operation of the embodiment of FIG. 9 .
- FIG. 12 is a circuit diagram of a battery switch driving circuit according to another embodiment of the present invention.
- FIG. 13 to 15 are diagrams for explaining the operation of the embodiment of FIG. 12 .
- a component when it is described that a component is 'connected', 'coupled', or 'connected' to another component, the component is directly 'connected', 'coupled', or 'connected' to the other component. In addition to the case, it may include a case of 'connected', 'coupled', or 'connected' by another element between the element and the other element.
- FIG. 2 is a block diagram of a battery switch driving circuit according to an embodiment of the present invention.
- the battery switch driving circuit 100 includes a first battery input terminal 110 , a second battery input terminal 120 , a converter 130 , a first switch 140 , and a switch driver 150 . and may include a second switch 151 , a first capacitor 152 , a second capacitor 153 , resistors and diodes connected between the respective components.
- the first battery input terminal 110 may be connected to a first battery (not shown) having a first battery voltage to receive the first battery voltage or output a voltage to the first battery to charge the first battery.
- the second battery input terminal 120 is connected to a second battery (not shown) having a second battery voltage different from that of the first battery input terminal 110 to receive the second battery voltage, or to receive the second battery voltage.
- the second battery may be charged by outputting a voltage to the .
- the first battery may be a low voltage battery, for example, a 12 V battery
- the first battery may be a high voltage battery, for example, a 48 V battery.
- the first battery may be a high voltage battery
- the second battery may be a low voltage battery, or batteries having the same voltage.
- the converter 130 is positioned between the first battery input terminal 110 and the second battery input terminal 120 , and converts the first battery voltage input to the first battery input terminal 110 into a second battery voltage to convert the second battery voltage. It may be output to the input terminal 120 , or the second battery voltage input to the second battery input terminal 120 may be converted into a first battery voltage and outputted to the first battery input terminal 110 .
- the converter 130 may be a bidirectional converter including a plurality of switches and an inductor, and charging may be performed between different batteries through the converter.
- the first switch 140 is positioned between the second battery input terminal and the converter, and blocks the power input of the second battery input terminal 120 when it is turned off.
- the voltage of the second battery connected to the second battery input terminal 120 may be greater than the voltage of the first battery connected to the first battery input terminal 110 , and the second battery voltage is received and the first battery voltage is received through the converter 130 .
- the first battery connected to the first battery input terminal 110 may be charged, or power may be supplied to devices receiving power from the first battery.
- the first switch 140 is turned on, and the first switch 140 is turned off so that the second battery voltage is not applied to the first battery.
- the power input of the second battery input terminal 120 may be disconnected.
- the switch driving unit 150 turns on the first switch 140 . In order to turn the first switch 140 on and off, it is necessary to supply driving power to the first switch 140 , and the switch driving unit 150 supplies driving power to the first switch 140 to turn it on.
- the switch driver may include a second switch 151 , a first capacitor 152 , and a second capacitor 153 as shown in FIG. 3 . Charging according to on-off of the second switch 151 by the voltage charged in the first capacitor 152 and the first capacitor 152 charged and discharged according to the on-off of the second switch 151 operating as a PWM signal A second capacitor 153 may be included.
- the first capacitor 152 may have one end connected to the first battery input terminal 110 and the other end connected to the second switch 151 .
- a path through which current flows to the first battery input terminal 110 , the first capacitor 152 , and the second switch 151 is connected to the first capacitor 152 . may be charged by a current flowing from the first battery input terminal 110 .
- the first capacitor 152 may be connected to the first battery input terminal 110 through a first resistor R1 and a first diode D1 . Current may flow through the first resistor R1 , and when the second switch 151 is turned off through the first diode D1 , current may be prevented from flowing in the reverse direction.
- the first capacitor 152 may have one end connected to a system power input terminal (not shown) or the second battery input terminal 120 , and the other end connected to the second switch 151 . As shown in FIG. 3 , the first capacitor 152 is not connected to the first battery input terminal 110 , but is connected to the system power input terminal or the second battery input terminal 120 , and is charged through the system power input terminal or the second battery voltage. can be Here, when one end of the first capacitor 152 is connected to the second battery input terminal 120 , a clamping circuit (not shown) clamps the voltage input from the second battery input terminal 120 to the first battery voltage. may include.
- the second battery may have a high voltage on the high side, and when a high voltage is used, the size of the rated voltage of the device must be increased. It is possible to form a clamping circuit that lowers the voltage to a set voltage. A high voltage is input through the clamping circuit, but the battery switch driving circuit can be driven with a low voltage, so that the circuit can be implemented using a low-cost device.
- the first capacitor 152 may have one end connected to one end of the second capacitor 153 and the other end connected to the other end of the second capacitor 153 .
- the second switch 151 When the second switch 151 is turned off by the PWM signal, the path through which the current flows to the second switch 151 is cut off, and the first capacitor 152 and the second capacitor 153 form a closed loop with each other. . Through this, the voltage charged in the first capacitor 152 charges the second capacitor 153 .
- the other end of the first capacitor 152 is connected to the other end of the second capacitor 153 through a second resistor R2 and a second diode D2, and one end of the first capacitor 152 is connected to the first It may be connected to one end of the second capacitor 153 through a third resistor Rg and a third diode D3.
- a current may flow through the second resistor R2 and the third resistor Rg, and the first capacitor 152 may be connected to the second capacitor 153 through the second diode D2 and the third diode D3. ) to allow current to flow in the direction of charging.
- the first switch 140 may be a MOSFET, and the second capacitor 153 has one end connected to the gate of the first switch 140 and the other end connected to the source, so that the gate threshold of the first switch 140 is connected. When the charge exceeds the value, the first switch 140 may be turned on. Both ends of the second capacitor 153 may be respectively connected to a gate terminal and a source terminal of the first switch 140 . That is, the voltage charged in the second capacitor 153 becomes the gate-source voltage of the first switch 140 . The first switch 140 is turned on when the gate-source voltage exceeds a threshold value. When the voltage charged in the second capacitor 153 is greater than or equal to the threshold value, the first switch 140 is turned on. do.
- a 12 V battery (Battery 12 V) may be connected to the first battery input terminal, and a 48 V battery (Battery 48 V) may be connected to the second battery input terminal.
- the converter is a DC-DC converter and may be a bidirectional converter formed of two switches Q1 and Q2 and an inductor L.
- the first switch SW1 is formed between the 48 V battery and the DC-DC converter.
- the switch driver for driving the first switch SW1 is connected to the 12 V battery through the second switch SW2 operated by the PWM signal, the first resistor R1 and the first diode D1 as shown in FIG. 4 .
- a first capacitor C1 which is a first capacitor C1
- a second capacitor Cg having both ends connected to the first capacitor C1
- the first capacitor C1 and the second capacitor Cg are connected to a second resistor R2 and
- the second diode D2 and the third resistor Rg may be connected through the second diode D3.
- Both ends of the second capacitor Cg may be connected to the gate and the source of the first switch SW1 , and the other end of the second capacitor 153 may be connected to a DC-DC converter.
- the battery switch driving circuit of FIG. 4 may operate as shown in FIGS. 5 and 6 according to the PWM signal.
- the 12 V battery voltage charges the first capacitor C1 through the first diode D1 and the first resistor R1 path P1. At this time, the voltage of the first capacitor C1 is increased as follows.
- leakage current flows through the DC-DC converter (L, Q1), the second resistor (R2), the second diode (D2), and the second switch (SW2) path (P2) as shown in the following equation Since this value is a loss, the value of the second resistor R2 should be selected as an appropriately large value.
- the size of the second resistor R2 may be set according to a leakage current tolerance allowed by the battery device or the system, and may be set by a user.
- the size of the second resistor R2 may be set to be larger than that of the first resistor R1 and the third resistor Rg.
- the voltage of the first capacitor C1 is greater than the 12 V battery voltage and the first diode D1 is turned off. .
- the voltage charged in the first capacitor C1 is passed through the third diode D3, the third resistor Rg, the second capacitor Rg, the second resistor R2, and the second diode D2 path P3.
- the second capacitor Cg is charged, and a voltage is charged in the second capacitor Cg, so that the first switch SW1 is turned on.
- the first capacitor C1 is charged while the second switch SW2 is on and the first capacitor C1 is charged when the second switch SW2 is turned off.
- the gate voltage of the first switch SW1 increases, and eventually the voltage across the second capacitor Cg becomes as follows.
- the first switch SW1 When the voltage across the second capacitor Cg is greater than or equal to the threshold value of the gate of the first switch SW1, the first switch SW1 is turned on, and the source voltage of the first switch SW1 is 48 at the 12 V battery voltage. V rises to the battery voltage.
- FIG. 7 is a circuit for performing the simulation of FIG. 4
- FIG. 8 shows a simulation result.
- the PWM signal is applied to start charging the gate-source voltage SW1_Vgs of the first switch SW1 and the voltage exceeds the threshold of the gate of the first switch SW1, the first switch It can be seen that SW1 is turned on and the source voltage SW1_source of the first switch SW1 rises from the 12 V battery voltage to the 48 V battery voltage.
- the first switch 140 positioned between the first battery input terminal 110 and the converter 130 and blocking the power input of the second battery input terminal 120 when it is turned off instead of the first battery input terminal 110 and the converter ( 130), and may include a fourth switch and a fifth switch for blocking power input in opposite directions when turned off.
- the switch driving unit 150 may turn on the fourth switch and the fifth switch.
- the switch structure can be implemented as a back-to-back structure.
- the back-to-back structure means a structure that blocks a bidirectional signal input.
- the second capacitor 153 of the switch driver 150 may be connected to the gate and drain of the back-to-back structure switch formed of the fourth switch and the fifth switch to turn on the fourth switch and the fifth switch as described above. .
- FIG. 9 is a circuit diagram of a battery switch driving circuit according to another embodiment of the present invention.
- a battery switch may be implemented in a back-to-back structure.
- the battery switch driving circuit of FIG. 9 like the battery switch driving circuit of FIG. 4, when a PWM signal is applied to the second switch SW2, the first capacitor C1 is charged, and the second capacitor Cg is charged to The 4th switch and the 5th switch are turned on and operate.
- FIG. 10 is a circuit for performing the simulation of FIG. 9
- FIG. 11 shows a simulation result.
- the PWM signal is applied to start charging the gate-source voltage SW1_Vgs of the switch SW1 having the back-to-back structure of the fourth switch and the fifth switch, and the voltage is the threshold of the gate of the first switch SW1 ), the first switch SW1 is turned on, and it can be seen that the drain voltage SW1_drain of the first switch SW1 rises from the 12 V battery voltage to the 48 V battery voltage.
- the voltage charged in the second capacitor Cg must be discharged. It may include a switch-off circuit to enable it.
- a third switch SW3 connected to the first battery input terminal through an optocoupler and a fourth resistor R3 and turned on and off according to a first switch-off signal
- the optocoupler includes the first battery input terminal.
- a closed loop is formed with the second capacitor 153 , and the third switch SW3 operates when the third switch SW3 is turned on to discharge the voltage of the second capacitor 153 .
- the optocoupler is a switch operated by light, and includes a light emitting diode that emits light when current flows and a switch that is turned on by light emitted from the light emitting diode.
- the third switch SW3 When the first switch-off signal is applied to the gate of the third switch SW3, the third switch SW3 is turned on, light is emitted from the light emitting diode of the optocoupler to operate the optocoupler, and the second capacitor 153 is turned on.
- the first switch 140 can be quickly turned on by quickly discharging the voltage charged in the second capacitor 153 by forming a closed loop with the second capacitor 153 .
- FIG. 12 is a circuit diagram of a battery switch driving circuit according to another embodiment of the present invention, and the first switch SW1 may be quickly turned on.
- the battery switch driving circuit of FIG. 12 operates as the battery switch driving circuit of FIG. 4 when the first switch SW1 is turned on, but when the first switch SW1 is turned on, as shown in FIG. 13 , the switch-off circuit is driven do.
- the first switch-off signal Switch-off
- SW3 the third switch
- the third switch (SW3) is turned on, the 12 V battery voltage, the light emitting diode of the optocoupler, the fourth resistor (R3) path (P4) ) turns the optocoupler on.
- the third resistor Rg may include a fifth resistor Rg1 and a sixth resistor Rg2, and when the optocoupler is turned on, the optocoupler, the fifth resistor Rg1, and the second capacitor Cg path P5 ), the second capacitor Cg is rapidly discharged, and accordingly, the first switch SW1 is quickly turned off.
- the voltage of the discharged second capacitor Cg is as follows.
- FIG. 14 is a circuit for performing the simulation of FIG. 12
- FIG. 15 shows a simulation result.
- the optocoupler is turned on, the gate-source voltage SW1_Vgs of the first switch SW1 starts to discharge, and the voltage
- the first switch SW1 becomes less than the threshold of the gate, the first switch SW1 is turned off, and the source voltage SW1_source of the first switch SW1 changes from a 48 V battery voltage to a 12 V battery voltage. It can be seen that the descending
- a high side switch can be turned on and off by implementing a battery switch driving circuit using a capacitor, a diode, a resistor, and a switch.
- a battery switch driving circuit according to an embodiment of the present invention, it is possible to turn on/off a switch composed of Back-to-Back, and to turn on/off various types of semiconductor switches (FET, IGBT, etc.) can do.
- the battery switch can be quickly turned off through the switch-off circuit.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims (10)
- 제1 배터리 입력단과 제2 배터리 입력단;상기 제1 배터리 입력단과 상기 제2 배터리 입력단 사이에 위치하는 컨버터;상기 제2 배터리 입력단과 상기 컨버터 사이에 위치하여, 오프시 상기 제2 배터리 입력단의 전원 입력을 차단하는 제1 스위치; 및상기 제1 스위치를 턴온시키는 스위치 구동부를 포함하되,상기 스위치 구동부는,PWM 신호로 동작하는 제2 스위치의 온오프에 따라 충방전되는 제1 커패시터; 및상기 제1 커패시터에 충전되는 전압에 의해 상기 제2 스위치의 온오프에 따라 충전되어 상기 제1 스위치를 턴온시키는 제2 커패시터를 포함하는 배터리 스위치 구동회로.
- 제1항에 있어서,상기 제1 커패시터는,일단이 상기 제1 배터리 입력단과 연결되고, 타단이 상기 제2 스위치와 연결되는 배터리 스위치 구동회로.
- 제2항에 있어서,상기 제1 커패시터는 제1 저항 및 제1 다이오드를 통해 상기 제1 배터리 입력단과 연결되는 배터리 스위치 구동회로.
- 제1항에 있어서,상기 제1 커패시터는,일단이 상기 제2 커패시터의 일단과 연결되고, 타단이 상기 제2 커패시터의 타단과 연결되는 배터리 스위치 구동회로.
- 제4항에 있어서,상기 제1 커패시터의 타단은 제2 저항 및 제2 다이오드를 통해 상기 제2 커패시터 타단과 연결되고,상기 제1 커패시터의 일단은 제3 저항 및 제3 다이오드를 통해 상기 제2 커패시터 일단과 연결되는 배터리 스위치 구동회로.
- 제1항에 있어서,상기 제2 커패시터는,일단이 상기 제1 스위치의 게이트와 연결되고 타단이 소스와 연결되어, 상기 제1 스위치의 게이트 임계값 이상 충전되면, 상기 제1 스위치가 턴온되는 배터리 스위치 구동회로.
- 제1항에 있어서,상기 제1 커패시터는,일단이 시스템 전원 입력단 또는 상기 제2 배터리 입력단과 연결되고, 타단이 상기 제2 스위치와 연결되는 배터리 스위치 구동회로.
- 제7항에 있어서,상기 제1 커패시터의 일단이 상기 제2 배터리 입력단과 연결시, 상기 제2 배터리 입력단으로부터 입력되는 전압을 제1 배터리 전압으로 클램핑하는 클램핑 회로를 포함하는 배터리 스위치 구동회로.
- 제1항에 있어서,옵토커플러 및 제4 저항을 통해 상기 제1 배터리 입력단과 연결되고, 제1 스위치 오프 신호에 따라 온오프되는 제3 스위치를 포함하고,상기 옵토커플러는,상기 제2 커패시터와 폐루프를 형성하되, 상기 제3 스위치가 턴온시 동작하여 상기 제2 커패시터의 전압을 방전하는 배터리 스위치 구동회로.
- 제1 배터리 입력단과 제2 배터리 입력단;상기 제1 배터리 입력단과 상기 제2 배터리 입력단 사이에 위치하는 컨버터;상기 제2 배터리 입력단과 상기 컨버터 사이에 위치하여, 오프시 서로 반대 방향으로의 전원 입력을 차단하는 제4 스위치와 제5 스위치; 및상기 제4 스위치 및 제5 스위치를 턴온시키는 스위치 구동부를 포함하되,상기 스위치 구동부는,PWM 신호로 동작하는 제2 스위치의 온오프에 따라 충방전되는 제1 커패시터; 및상기 제1 커패시터에 충전되는 전압에 의해 상기 제2 스위치의 온오프에 따라 충전되어 상기 제3 스위치 또는 상기 제4 스위치를 턴온시키는 제2 커패시터를 포함하는 배터리 스위치 구동회로.
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EP22746191.0A EP4287478A1 (en) | 2021-01-28 | 2022-01-24 | Battery switch driving circuit |
US18/263,393 US20240137017A1 (en) | 2021-01-28 | 2022-01-24 | Battery switch driving circuit |
JP2023546133A JP2024505536A (ja) | 2021-01-28 | 2022-01-24 | バッテリースイッチ駆動回路 |
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KR1020210012390A KR20220109110A (ko) | 2021-01-28 | 2021-01-28 | 배터리 스위치 구동회로 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4737667A (en) * | 1986-03-11 | 1988-04-12 | Siemens Aktiengesellschaft | Driving circuitry for a MOSFET having a source load |
JPH11353038A (ja) * | 1998-06-05 | 1999-12-24 | Nec Corp | 電源装置の突入電流防止回路 |
JP2013055849A (ja) * | 2011-09-06 | 2013-03-21 | Denso Corp | 2次電池用電源装置及び車載器 |
JP2016140118A (ja) * | 2015-01-26 | 2016-08-04 | 株式会社村田製作所 | 電源装置 |
CN106027013A (zh) * | 2016-06-23 | 2016-10-12 | 昂宝电子(上海)有限公司 | 用于模拟功率开关的控制装置和控制方法 |
-
2021
- 2021-01-28 KR KR1020210012390A patent/KR20220109110A/ko active Search and Examination
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2022
- 2022-01-24 JP JP2023546133A patent/JP2024505536A/ja active Pending
- 2022-01-24 EP EP22746191.0A patent/EP4287478A1/en active Pending
- 2022-01-24 US US18/263,393 patent/US20240137017A1/en active Pending
- 2022-01-24 WO PCT/KR2022/001262 patent/WO2022164164A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4737667A (en) * | 1986-03-11 | 1988-04-12 | Siemens Aktiengesellschaft | Driving circuitry for a MOSFET having a source load |
JPH11353038A (ja) * | 1998-06-05 | 1999-12-24 | Nec Corp | 電源装置の突入電流防止回路 |
JP2013055849A (ja) * | 2011-09-06 | 2013-03-21 | Denso Corp | 2次電池用電源装置及び車載器 |
JP2016140118A (ja) * | 2015-01-26 | 2016-08-04 | 株式会社村田製作所 | 電源装置 |
CN106027013A (zh) * | 2016-06-23 | 2016-10-12 | 昂宝电子(上海)有限公司 | 用于模拟功率开关的控制装置和控制方法 |
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US20240137017A1 (en) | 2024-04-25 |
JP2024505536A (ja) | 2024-02-06 |
KR20220109110A (ko) | 2022-08-04 |
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