WO2022197067A1 - Procédé de commande d'énergie de sortie d'un dispositif de distribution d'énergie comprenant une pluralité d'interfaces d'alimentation en énergie, et son dispositif de distribution d'énergie - Google Patents

Procédé de commande d'énergie de sortie d'un dispositif de distribution d'énergie comprenant une pluralité d'interfaces d'alimentation en énergie, et son dispositif de distribution d'énergie Download PDF

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Publication number
WO2022197067A1
WO2022197067A1 PCT/KR2022/003611 KR2022003611W WO2022197067A1 WO 2022197067 A1 WO2022197067 A1 WO 2022197067A1 KR 2022003611 W KR2022003611 W KR 2022003611W WO 2022197067 A1 WO2022197067 A1 WO 2022197067A1
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WIPO (PCT)
Prior art keywords
converter
output
power
specific
power supply
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Application number
PCT/KR2022/003611
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English (en)
Korean (ko)
Inventor
문정필
이기선
강원석
최항석
Original Assignee
삼성전자 주식회사
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Publication of WO2022197067A1 publication Critical patent/WO2022197067A1/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • 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
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
    • 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
    • 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
    • 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
    • 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
    • H02M7/21—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 using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/30—Charge provided using DC bus or data bus of a computer

Definitions

  • Various embodiments disclosed in this document relate to a power transmission device including a plurality of power supply interfaces (or power supply ports and power supply terminals), and to a method of controlling output power of the power transmission device.
  • USB universal serial bus
  • a power supply that includes a plurality of power supply ports depends on the maximum power output from the power supply port, depending on the size of the power supply and the elements contained therein (eg, AC/DC converter, DC/DC converter, inductor) design may be different.
  • the maximum output power can be supplied only from one specific power supply port in order to reduce material cost, and only a preset power smaller than this can be output from the remaining power supply ports. .
  • Various embodiments disclosed in this document provide a circuit and/or method capable of supplying maximum power from all power supply ports of the power transmission device without increasing the size and/or material cost of the power transmission device including a plurality of power supply ports suggest
  • a power transmission device including a plurality of power supply interfaces includes: an AC/DC converter; a plurality of DC/DC converters having a first output power of a first voltage and a first current, the plurality of DC/DC converters respectively corresponding to the plurality of power supply interfaces; and a main control circuit electrically connected to the AC/DC converter and the plurality of DC/DC converters, wherein the main control circuit is configured to: receive connection state information of external devices connected to the plurality of power supply interfaces and, based on the connection state information, determining whether a specific DC/DC converter that requires an output of a second output power greater than the first output power exists among the plurality of DC/DC converters, and the second output power When the specific DC/DC converter that requires the output of The voltage output from the /DC converter may be changed based on the connection state information.
  • a method for controlling output power of a power transmission device including a plurality of power supply interfaces includes: receiving connection state information of an external device connected to the plurality of power supply interfaces; Determining whether there is a specific DC/DC converter requesting output of a second output power greater than a first output power among a plurality of DC/DC converters of the power transmitter based on the connection state information; a DC/DC converter having the first output power of a first voltage and a first current; and when the specific DC/DC converter requesting output of the second output power exists, the specific DC/DC converter such that the voltage output from the AC/DC converter of the power transmission device is directly supplied to the specific DC/DC converter and controlling the DC converter, and the voltage output from the AC/DC converter may be changed based on the connection state information.
  • a power transmission circuit including a plurality of power supply interfaces includes an AC/DC converter; A PWM control circuit for outputting a pulse width modulation (PWM) signal, a plurality of DC/DC converters including two switch elements controlled by the PWM signal, and an inductor, wherein the plurality of DC/DC converters include the two switches designed to output a first output power to an external device connected to the plurality of power supply interfaces by repeating an operation of alternately turning on and off the device; and a main control circuit electrically connected to the AC/DC converter and the plurality of DC/DC converters, wherein the main control circuit is configured to: receive connection state information of the external devices connected to the plurality of power supply interfaces; Receive, based on the connection state information, determine whether a specific DC/DC converter that requires an output of a second output power greater than the first output power among the plurality of DC/DC converters exists, and the second output When the specific DC/DC converter that requires the output of power exists, the specific DC/DC converter and the AC/
  • a power transmission device including a plurality of power supply interfaces operates a switch element included in a DC/DC converter based on connection state information of an external device connected to the plurality of power supply interfaces By controlling , it is possible to provide a multi-port power transmitter capable of outputting maximum power from all power supply interfaces while having a small size and low manufacturing cost.
  • the maximum output power of all DC/DC converters included in the power transmission device may be designed to be the same as a preset maximum output power value of the power transmission device, and each DC The /DC converter can change the output power according to the connected external device.
  • FIG. 1 is an exemplary diagram illustrating a power transmitter and an external device receiving power from the power transmitter according to an embodiment.
  • FIG. 2 is a block diagram illustrating an apparatus for transmitting power according to an embodiment.
  • 3A is an exemplary diagram illustrating output power for each power supply interface of a power transmitter according to a comparative example.
  • 3B is an exemplary diagram illustrating output power for each power supply interface of the power transmitter according to an embodiment of the present disclosure.
  • FIG. 4 is a flowchart illustrating a method of controlling output power of a power transmitter according to an embodiment.
  • FIG. 5 is a flowchart illustrating a method of controlling a specific DC/DC converter and an AC/DC converter to output second output power from a power supply interface of a specific DC/DC converter of a power transmission device according to an embodiment.
  • FIG. 6 is a graph comparing the amount of loss according to a switching operation and a bypass operation of a DC/DC converter of a power transmitter according to an exemplary embodiment.
  • FIG. 7 is an exemplary diagram illustrating a power transmission circuit of a power transmission device according to an embodiment.
  • FIG. 8 is a graph comparing power output from an AC/DC converter and a plurality of DC/DC converters according to a connection state of an external device connected to the power transmitter according to an exemplary embodiment.
  • FIG. 9 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure.
  • FIG. 1 is an exemplary diagram illustrating a power transmitter 100 and an external device 200 receiving power from the power transmitter 100 according to an embodiment.
  • a power transmission device 100 may include a plurality of power supply ports 101 on one side of a housing, and an external device ( 200) can be supplied with power.
  • the power transmission device 100 may transmit power to a plurality of external devices 200 at a time by using the plurality of power supply ports 101 disposed therein, and a request from the connected external device 200 may be obtained.
  • the output power of the power supply port 101 can be adjusted according to the power to be used.
  • the power transmitter 100 may include a battery inside the housing, and the battery may be charged by an external power source.
  • the power transmitter 100 may supply power to the external device 200 connected to the power supply port 101 using power (or external power) charged in the battery.
  • the battery of the power transmission device 100 may be discharged and the battery of the external device 200 may be charged.
  • the power supply port 101 included in the power transmission device 100 may use a universal serial bus (USB) interface.
  • the power transmission device 100 may be connected to the USB connector of the external device 200 as a charging target device through the power supply port 101 .
  • the power supply port 101 may use, for example, a USB power delivery (PD) technology as a power supply technology using a data line.
  • a USB port (or USB interface) can be, for example, USB type-A, USB type-B, USB type-C, USB mini-A, USB mini-B, USB micro-A, and/or USB micro-B It may be implemented in at least one type of
  • the shape of the power supply port 101 may be different according to the above-described USB interface type, and the data or power transmission speed may be different.
  • the power supply port 101 is not limited to the above type, and various types of interfaces for transmitting power may be used.
  • the same type of USB interface may be applied to all of the plurality of power supply ports 101 included in the power transmission device 100 , or two or more types of USB interfaces may be mixed and applied.
  • FIG. 2 is a block diagram illustrating a power transmitter 300 according to an embodiment.
  • a power transmission device 300 may include a plurality of electronic components (or devices) disposed in an internal space.
  • the power transmission device 300 may include an AC/DC converter 310 , a DC/DC converter 320 , a main control circuit 330 , and/or a power supply interface 340 .
  • the DC/DC converter 320 may include a pulse width modulation (PWM) control circuit 321 , a switch element 322 , and/or an inductor 323 .
  • PWM pulse width modulation
  • the present invention is not limited thereto, and one or more of the electronic components may be omitted or other electronic components may be further included.
  • the power transmitter 300 includes a plurality of (eg, 2 to n) DC/DC converters 320 and a plurality of DC/DCs according to an implementation method (or implementation form).
  • a plurality of (eg, 2 to n) power supply interfaces 340 corresponding to the converter 320 may be included.
  • the power transmission device 300 may be a switching mode power supply (SMPS).
  • the switching mode power supply is a modular power supply that converts alternating current (AC) power supplied from commercial power into direct current (DC) power to match the external device 200 to which it is supplied.
  • the mode power supply may stabilize the output power by controlling an on-off time ratio of the included semiconductor switch element 322 .
  • the AC/DC converter 310 may convert input AC power into DC power and output the converted AC power.
  • the DC power output from the AC/DC converter 310 may be supplied to the plurality of DC/DC converters 320 .
  • the AC/DC converter 310 of the present disclosure may include various electronic devices (eg, a rectifier circuit, a PWM control circuit, and a switch device) required in a general AC/DC converter.
  • the AC/DC converter 310 includes at least one electronic device (eg, PWM) included therein based on the external device 200 connected to the power supply interface 340 of the power transmission device 300 . control circuit) and adjust the output voltage.
  • the DC/DC converter 320 receives DC power from the AC/DC converter 310 and receives the DC power required by the external device 200 connected to the corresponding power supply interface 340 . can be converted to According to an embodiment, the DC/DC converter 320 controls an output voltage and/or an output current by controlling various included electronic devices (eg, the PWM control circuit 321 and the switch device 322 ). can do. For example, the DC/DC converter 320 may generate a desired voltage value as an average value of output voltages by repeating a switching operation of alternately turning on and off the included two switch elements 322 . According to an embodiment, the voltage output from the DC/DC converter 320 to the connected external device 200 may be determined by the input voltage and the switching duty ratio.
  • the power transmitter 300 may include a plurality of DC/DC converters 320 .
  • the plurality of DC/DC converters 320 included in the power transmitter 300 may all have the same role.
  • each of the n DC/DC converters 320 includes a first DC/DC converter, a second DC/DC converter, ..., It can be called an nth DC/DC converter.
  • the maximum output power of all DC/DC converters 320 included in the power transmitter 300 may be designed to be the same as a preset maximum output power value of the power transmitter 300 .
  • the DC/DC converter 320 may change the output power according to the connected external device 200 . However, the sum of the power output from the plurality of DC/DC converters 320 may be less than or equal to the preset maximum output power of the power transmitter 300 .
  • the maximum output power value of the power transmitter 300 when the maximum output power value of the power transmitter 300 is preset to A, the maximum output power value from each of the n DC/DC converters 320 included in the power transmitter 300 . It can be designed as Figure A.
  • the first DC/DC converter 3201 when the external device 200 is connected only to the first DC/DC converter 3201 , the first DC/DC converter 3201 may output power as high as A.
  • the first DC/DC converter 3201 may output power as much as the rated design A/n.
  • the DC/DC converter 320 may include a PWM control circuit 321 , a switch element 322 , and/or an inductor 323 , and a switch element through the PWM control circuit 321 . By controlling 322, it is possible to control the output power.
  • the pulse width modulation (PWM) control circuit 321 included in the DC/DC converter 320 may control the average voltage by modulating a duty ratio or a pulse width within a predetermined period.
  • the PWM control circuit 321 may output a PWM signal, and the at least one switch element 322 included in the DC/DC converter 320 is turned on/off by the PWM signal. ) operation can be controlled.
  • the switch element 322 included in the DC/DC converter 320 may be controlled by the PWM control circuit 321 .
  • the DC/DC converter 320 may include two switch elements 322 , and may be referred to as a first switch element 322a and a second switch element 322b, respectively.
  • the first switch element 322a and the second switch element 322b may be connected in series and may be distinguished based on the position of the power transmission circuit of the power transmission device 300 .
  • the first switch element 322a may be a switch element located at an upper side of the power transmission circuit and may be referred to as a high-side switch.
  • the second switch element 322b may be a switch element located at the lower side of the power transmission circuit, and may be referred to as a low-side switch. According to an embodiment, the first switch element 322a located at the upper side may not be connected to the ground, and the second switch element 322b located at the lower side may be connected to the ground.
  • the switch device 322 may be a field effect transistor (FET).
  • the field effect transistor may include a metal oxide semiconductor field effect transistor (MOSFET).
  • the inductor 323 included in the DC/DC converter 320 may include a coil and a core, and may prevent a sudden change in output voltage.
  • the inductor 323 may flatten the voltage chopped by the on-off operation of the switch element 322 .
  • the inductor 323 may act as a low-pass filter.
  • the main control circuit 330 may be configured to calculate a desired output value based on various collected data. According to one embodiment, the main control circuit 330 is based at least in part on the connection state information of the external device 200 connected to the power supply interface 340 , the AC/DC converter 310 and the plurality of DC/DC converters ( 320) can be controlled.
  • the main control circuit 330 may receive connection state information of the external device 200 connected to the plurality of power supply interfaces 340 from the plurality of DC/DC converters 320, and based on the received information Thus, the voltage output from the AC/DC converter 310 and the power output from the DC/DC converter 320 may be controlled.
  • the connection state information of the external device 200 may include, for example, information on the number of external devices 200 connected to the plurality of power supply interfaces 340 and/or external devices connected to the plurality of power supply interfaces 340 . In 200 , it may include information about the power required for each.
  • the main control circuit 330 may control the operation of the DC/DC converter 320 to control output power.
  • the main control circuit 330 may control the PWM control circuit 321 of the DC/DC converter 320 so that the DC/DC converter 320 performs a switching operation or a bypass operation.
  • the switching operation may be an operation in which the first switch element 322a and the second switch element 322b included in the DC/DC converter 320 alternately repeat an on-off operation, and the bypass operation is
  • the first switch element 322a ie, an upper switch, a switch not connected to ground
  • the second switch element 322b ie, a lower switch, a switch connected to the ground
  • the DC/DC converter 320 may be designed to be rated with the first output power composed of the first voltage and the first current, and may be designed to output the first output power through a switching operation. According to an embodiment, when the external device 200 requests power greater than the first output power, the DC/DC converter 320 may perform a bypass operation and output power greater than the first output power. can do.
  • the DC/DC converter 320 when the DC/DC converter 320 performs a switching operation, the DC/DC converter 320 is irrespective of a voltage input from the AC/DC converter 310 to the DC/DC converter 320 . It can output as much as the first voltage value designed for the rating.
  • the DC/DC converter 320 when the DC/DC converter 320 performs a bypass operation, the DC/DC converter 320 applies a voltage input from the AC/DC converter 310 to the DC/DC converter 320 as it is. can be printed out.
  • the main control circuit 330 when the DC/DC converter 320 performs a bypass operation, the main control circuit 330 directly supplies the voltage output from the AC/DC converter 310 to the DC/DC converter 320 .
  • the DC/DC converter 320 may be controlled as much as possible.
  • input power of the DC/DC converter may be output to the connected external device 200 through the first switch element 322a and the inductor 323 .
  • the power supply interface 340 may support one or more specified protocols through which the power transmission device 300 is connected to the external device 200 to transmit power to the external device 200 .
  • the power supply interface 340 may include a universal serial bus (USB) interface.
  • USB universal serial bus
  • the USB interface includes various types of USB interfaces (eg, USB type-A, USB type-B, USB type-C, USB mini-A, USB mini-B, USB micro-A, and USB micro-B) can be implemented.
  • the power transmitter 300 may include a plurality of power supply interfaces 340 , and the plurality of power supply interfaces 340 may correspond to a plurality of DC/DC converters 320 , respectively. have.
  • the power output from the DC/DC converter 320 may be transmitted to the external device 200 connected to the corresponding power supply interface 340 .
  • the power transmission device 300 includes n DC/DC converters 320
  • the number of power supply interfaces 340 may also be n
  • the first DC/DC converter may correspond to the first power supply interface
  • the second DC/DC converter may correspond to the second power supply interface
  • the nth DC/DC converter may correspond to the nth power supply interface.
  • the same type of USB interface may be applied to all of the n power supply interfaces 340 , or two or more types of USB interfaces may be mixed and applied.
  • a circuit included in the power transmission device 300 may be referred to as a power transmission circuit.
  • the power transmission device 300 and the power transmission circuit may be used interchangeably. That is, the power transmission device 300 may be a device capable of supplying necessary power to the connected external device 200 by converting input power, and the power transmission circuit converts the input power to the connected external device 200 . It may be a circuit capable of supplying the necessary power.
  • the power transmitter 300 may further include various components according to its provision form.
  • specific components among the above-described components may be excluded or replaced with other components according to the form of the power transmission device 300 .
  • FIG. 3A is an exemplary diagram illustrating output power for each power supply interface 340a of the power transmission device 300a according to a comparative example
  • FIG. 3B is a power supply of the power transmission device 300 according to an embodiment of the present disclosure. It is an exemplary diagram for explaining the output power for each interface 340 .
  • the power transmission devices 300a and 300 include three power supply interfaces 340a and 340 will be described.
  • the power transmission devices 300a and 300 may be set to have a maximum output power of 45W.
  • the maximum output power set in the power transmission devices 300a and 300 is the maximum limit of the sum of power output from the power transmission devices 300a and 300 to all external devices 200 connected to the power supply interfaces 340a and 340 . can be a value.
  • a specific one of the first DC/DC converter 3201a, the second DC/DC converter 3202a, and the third DC/DC converter 3203a Only the DC/DC converter (eg, the first DC/DC converter 3201) is designed to output up to 45W, and the remaining DC/DC converters (eg, the second DC/DC converter 3202, the third DC/DC converter) (3203)) can always be designed to output only 15W.
  • the DC/DC converter eg, the first DC/DC converter 3201
  • the remaining DC/DC converters eg, the second DC/DC converter 3202, the third DC/DC converter
  • the first DC/DC converter 3201a when the external device 200 is connected to at least one of the second DC/DC converter 3202a and the third DC/DC converter 3203a, the first DC/DC converter 3201a is 15W of power can be output, and when the external device 200 is not connected to the second DC/DC converter 3202a and the third DC/DC converter 3203a (ie, the first DC/DC converter 3201a) ) only when the external device 200 is connected), power of 15W or more and 45W or less may be output.
  • the second DC/DC converter 3202a (or the third DC/DC converter 3203a) of FIG. 3A is the second DC/DC converter 3202a (or the third DC/DC converter 3203a). ), even when the external device 200 is connected, only 15W of power can be output.
  • the maximum power supported by the power transmitter 300a can be output only from one specific DC/DC converter 3201a among the plurality of DC/DC converters 320a. do.
  • the power transmission device 300 includes all DC/DC converters 320 (eg, a first DC/DC converter 3201 , a second DC/DC converter ( 3202), and the third DC/DC converter 3203) may be designed to output a maximum of 45W.
  • DC/DC converters 320 eg, a first DC/DC converter 3201 , a second DC/DC converter ( 3202), and the third DC/DC converter 3203
  • the power transmission device 300 includes all DC/DC converters 320 (eg, a first DC/DC converter 3201 , a second DC/DC converter ( 3202), and the third DC/DC converter 3203) may be designed to output a maximum of 45W.
  • each of the first DC/DC converter 3201 , the second DC/DC converter 3202 , and the third DC/DC converter 3203 is connected to an external device ( 200) is connected, it is possible to output power of 15W rated design, and when the external device 200 is not connected to at least one DC/DC converter (ie, one DC/DC converter 320 is connected to an external device)
  • 15W or more and 45W or less of power may be output according to the power required by the external device 200 .
  • the power transmitter 300 is capable of outputting the maximum power supported by the power transmitter 300 in all of the plurality of DC/DC converters 320 .
  • FIG. 4 is a flowchart illustrating a method of controlling output power of the power transmitter 300 according to an exemplary embodiment.
  • each operation may be sequentially performed, but is not necessarily performed sequentially.
  • the order of each operation may be changed, and at least two operations may be performed in parallel.
  • the order of operations 430 and 440 may be changed or performed simultaneously, and operation 440 may be omitted.
  • FIG. 4 may be performed by the power transmitter 300 of FIG. 2 .
  • the main control circuit 330 of the power transmission device 300 receives connection state information of the external device 200 connected to the plurality of power supply interfaces 340 ( 410), an operation 420 of determining whether a specific DC/DC converter 320 that requires an output of the second output power greater than the first output power designed as the rated power among the plurality of DC/DC converters 320 exists (420); When the specific DC/DC converter 320 is present, the specific DC/DC converter 320 and the AC/DC converter 310 to output the second output power from the power supply interface 340 of the specific DC/DC converter 320 .
  • control operation 430 when a specific DC/DC converter 320 exists, the external device 200 among the power supply interfaces 340 of the remaining DC/DC converters 320 is connected to the power supply interface 340 an operation 440 of controlling the remaining DC/DC converters 320 to output the first output power in 440 , and when a specific DC/DC converter 320 does not exist, an external device among the plurality of power supply interfaces 340 An operation 450 of controlling the plurality of DC/DC converters 320 to output the first output power from the power supply interface 340 to which 200 is connected may be performed.
  • FIG. 4 each operation of FIG. 4 will be described in detail.
  • the main control circuit 330 of the power transmitter 300 may receive connection state information of the external devices 200 connected to the plurality of power supply interfaces 340 .
  • the connection state information of the external device 200 includes information on the total number of external devices 200 connected to the plurality of power supply interfaces 340 and each external device connected to the plurality of power supply interfaces 340 .
  • Information on the output power required by the device 200 may be included.
  • the plurality of DC/DC converters 320 determine whether to connect the external device 200 as a charging target device based on a current value generated or changed in each corresponding power supply interface 340 . , and it is possible to determine a power value required by the external device 200 .
  • the DC/DC converter 320 may transmit connection state information of the external device 200 according to the detection result to the main control circuit 330 .
  • the main control circuit 330 performs the first output power designed as the rated power among the plurality of DC/DC converters 320 based on the received connection state information of the external device 200 . It may be determined whether there is a specific DC/DC converter 320 that requires an output of the larger second output power.
  • the first output power may be composed of the first power and the first current, and may be an output power designed to be rated when the DC/DC converter 320 performs a switching operation.
  • the second output power may have a greater value than the first output, and may be determined by the external device 200 connected to the power supply interface 340 .
  • the main control circuit 330 performs the specific DC/DC converter ( The specific DC/DC converter 320 and the AC/DC converter 310 may be controlled to output the second output power from the power supply interface 340 of the 320 .
  • the main control circuit 330 controls the remaining DC/DC converters ( The remaining DC/DC converters 320 may be controlled to output the first output power from the power supply interface 340 to which the external device 200 is connected among the power supply interfaces 340 of the 320 .
  • the main control circuit 330 operates a plurality of DC/DC converters such that a specific DC/DC converter 320 performs a bypass operation and the remaining DC/DC converters 320 perform a switching operation.
  • the DC/DC converter 320 may be controlled. All of the plurality of DC/DC converters 320 may be designed identically, and all may perform a bypass operation or a switching operation.
  • a specific DC/DC converter 320 and the remaining DC/DC converters 320 may be distinguished by the connected external device 200 .
  • the DC/DC converter 320 when the DC/DC converter 320 performs a switching operation in operation 440 , the DC/DC converter 320 is the AC/DC converter regardless of the power output from the AC/DC converter 310 .
  • the power output from 310 may be converted into a first output power of a first voltage and a first current designed to be rated and output.
  • the DC/DC converter 320 when the DC/DC converter 320 performs the bypass operation in operation 430 , the DC/DC converter 320 directly receives the voltage output from the AC/DC converter 310 and outputs it as it is. , a second output power greater than the first output power may be output.
  • the main control circuit 330 may control the AC/DC converter 310 to output a third voltage greater than the second voltage of the second output power.
  • the third voltage may be, for example, a value greater than the second voltage by a value of power lost in the DC/DC converter 320 .
  • the main control circuit 330 when there is no specific DC/DC converter 320 requesting the output of the second output power greater than the first output power, in operation 450 , the main control circuit 330 performs a plurality of power supply interfaces.
  • the plurality of DC/DC converters 320 may be controlled to output the first output power from the power supply interface 340 to which the external device 200 is connected.
  • the main control circuit 330 may control the DC/DC converter 320 to perform a switching operation in the DC/DC converter 320 to which the external device 200 is connected.
  • the DC/DC converter 320 when the DC/DC converter 320 performs a switching operation, the DC/DC converter 320 performs a first voltage designed as a rating and It can output as much as the first output power of the first current.
  • the switching operation of the DC/DC converter 320 in operation 450 may be the same as the switching operation of the DC/DC converter 320 in operation 440 .
  • FIG. 5 is a specific DC/DC converter 320 and AC/DC to output the second output power from the power supply interface 340 of the specific DC/DC converter 320 of the power transmission device 300 according to an embodiment. It is a flowchart explaining a method of controlling the converter 310 .
  • FIG. 5 may be performed by the power transmitter 300 of FIG. 2 .
  • the main control circuit 330 of the power transmission device 300 in order to output the second output power greater than the rated output power, in the AC/DC converter 310 .
  • An operation 520 of controlling the AC/DC converter 310 to be a third voltage greater than two voltages may be performed.
  • the main control circuit 330 controls a specific DC/DC converter such that the voltage output from the AC/DC converter 310 is directly supplied to the specific DC/DC converter 320 that requires the second output power.
  • the PWM control circuit 321 of the DC converter 320 may be controlled.
  • the second output power may be composed of the second voltage and the second current and may be determined according to the connected external device 200 .
  • the main control circuit 330 turns on the first switch element 322a among the two switch elements 322 included in the specific DC/DC converter 320 fully turns on the second switch element 322b may control the PWM control circuit 321 of a specific DC/DC converter 320 to perform a turn-off bypass operation.
  • the first switch element 322a may be an upper switch or a switch not connected to the ground. According to an embodiment, when the DC/DC converter 320 performs a bypass operation, the voltage supplied from the AC/DC converter 310 to the DC/DC converter 320 is converted by the DC/DC converter 320 . It can be output as it is.
  • the main control circuit 330 outputs a third voltage greater than the second voltage of the second output power required by the external device 200 from the AC/DC converter 310 .
  • the DC converter 310 may be controlled.
  • the AC/DC converter 310 compensates for a value that is lost while the voltage supplied to the DC/DC converter 320 passes through the DC/DC converter 320 to generate the desired second output power.
  • a third voltage greater than the second voltage may be output.
  • the third voltage is compensated by the second voltage as much as the voltage lost by the elements (eg, the switch element 322 and the inductor 323) included in the DC/DC converter 320 performing the bypass operation. can have a value.
  • the third voltage output from the AC/DC converter 310 may be directly input to the DC/DC converter 320 performing a switching operation, and the third voltage is the DC/DC converter 320 .
  • a portion of conduction loss may be caused by an electrical element to be finally output as a second voltage from the DC/DC converter 320 .
  • FIG. 6 is a graph comparing the amount of loss according to the switching operation and the bypass operation of the DC/DC converter 320 of the power transmitter 300 according to an embodiment.
  • Figure 6 (a) shows the loss in the DC / DC converter 320 when the DC / DC converter 320 performs a switching operation
  • Figure 6 (b) is the DC / DC converter 320 It shows the loss in the DC/DC converter 320 when the bypass operation.
  • power loss may occur in the switch element 322 and the inductor 323 of the DC/DC converter 320 .
  • a switching loss and a current generated in the process of alternately turning on and off the first switch element 322a and the second switch element 322b are applied to the first switch element 322a ) or a conduction loss occurring in the process of flowing through the second switch element 322b may occur.
  • the phase of the voltage across the inductor 323 changes by 180 degrees to the inductor 323.
  • a core loss caused by the magnetoresistance of the included core and a conduction loss occurring while a current flows through the inductor 323 may occur.
  • power loss may occur in the switch element 322 and the inductor 323 of the DC/DC converter 320 .
  • conduction loss may occur while a current flows through the first switch element 322a or the second switch element 322b
  • the current Conduction loss may occur while flowing through the inductor 323 .
  • the loss in operation 520 may refer to the conduction loss of FIG. 6B .
  • FIG. 7 is an exemplary diagram illustrating a power transmission circuit 700 of the power transmission device 300 according to an embodiment.
  • FIG. 7 illustrates a power transmission circuit 700 included in the power transmission device 300 of the present disclosure, and power including three DC/DC converters 320 (or three power supply interfaces 340 ).
  • An example of the transmission circuit 700 is illustrated.
  • the power transmission device 300 includes an AC/DC converter 310 , a first DC/DC converter 3201 , a second DC/DC converter 3202 , and/or a third DC/DC converter. 3203 and a main control circuit 330 for controlling them may be included.
  • the first DC/DC converter 3201 may include a first PWM control circuit 3211 , a first high side switch 3221a , a first low side switch 3221b , and/or a first inductor 3231 , power output from the first DC/DC converter 3201 may be supplied to the external device 200 connected to the first power supply interface 3401 .
  • the second DC/DC converter 3202 may include a second PWM control circuit 3212 , a second high side switch 3222a , a second low side switch 3222b , and/or a second inductor 3232 , and , power output from the second DC/DC converter 3202 may be supplied to the external device 200 connected to the second power supply interface 3402 .
  • the third DC/DC converter 3203 may include a third PWM control circuit 3213 , a third high side switch 3223a , a third low side switch 3223b , and/or a third inductor 3233 , and , power output from the third DC/DC converter 3203 may be supplied to the external device 200 connected to the third power supply interface 3403 .
  • the first DC/DC converter 3201 , the second DC/DC converter 3202 , and the third DC/DC converter 3203 may all be designed in the same way.
  • the first DC/DC converter 3201, the second DC/DC converter 3202, and the third DC/DC converter 3203 may be designed with a basic rating with the first output power, and an external device ( 200 , it may be designed to output as much as the maximum output power supported by the power transmission circuit 700 . That is, the value of the maximum output power supported by the power transmission circuit 700 and the first DC/DC converter 3201 , the second DC/DC converter 3202 , and the third DC/DC converter 3203 are respectively output The value of the maximum possible output may be the same.
  • the main control circuit 330 of the power transmission circuit 700 includes a first DC/DC converter 3201 , a second DC/DC converter 3202 , and a third DC/DC converter 3203 .
  • Information on the total number of external devices 200 connected to the power transmission circuit 700 and information on power required by each external device 200 may be received from the .
  • the external device 200 is connected to the first DC/DC converter 3201 and the second DC/DC converter 3202 based on the received information, and the It may be determined that only the first DC/DC converter 3201 requires the second output power greater than the previously rated and designed first output power.
  • the main control circuit 330 may control the first PWM control circuit 3211 so that the first DC/DC converter 3201 performs a bypass operation of turning on only the first upper switch 3221a, 2
  • the DC/DC converter 3202 may control the second PWM control circuit 3212 to alternately turn on and off the second upper switch 3222a and the second lower switch 3222b.
  • the first power supply interface 3401 corresponding to the first DC/DC converter 3201 performing the bypass operation may supply the second output power to the connected external device 200 and perform the second switching operation.
  • the second power supply interface 3402 corresponding to the DC/DC converter 3202 may supply the first output power to the connected external device 200 .
  • FIG. 8 is a diagram illustrating comparison of power output from an AC/DC converter 310 and a plurality of DC/DC converters 320 according to a connection state of an external device 200 connected to the power transmitter 300 according to an embodiment. It is a graph.
  • a first DC/DC converter 3201 is a first DC/DC converter 3201, a second DC/DC converter 3202, and a third DC/DC converter 3203 in the power transmission circuit 700 of FIG. 7, respectively, a 5V voltage and 3A current It is designed rated at 15W of power, and the power transmission circuit is designed to be capable of outputting up to 45W.
  • the first DC/DC converter 3201, the second DC/DC converter 3202, and the third DC/DC converter 3203 can all perform a switching operation and output 15W power (rated power) of 5V voltage and 3A current, respectively. have.
  • the AC/DC converter 310 may output 15V, which is the sum of each 5V.
  • the external device 200 is connected to the first DC/DC converter 3201 and the second DC/DC converter 3202 , and the external device 200 is connected to the first DC/DC converter 3201 .
  • the first DC/DC converter 3201 may output 18W power of 9V voltage and 2A current through the bypass operation
  • the second DC/ The DC converter 3202 may output 15W power (rated power) of a 5V voltage and 3A current through a switching operation.
  • the AC/DC converter 310 compensates for a loss that may occur in the first DC/DC converter 3201 and a value slightly larger than 9V required by the first DC/DC converter 3201 (eg, 9.1V). ) may be output, and the output voltage may be directly supplied to the first DC/DC converter 3201 .
  • the external device 200 is connected to the first DC/DC converter 3201 and the second DC/DC converter 3202 , and the first DC/DC converter 3201 and the second DC/DC converter When all external devices 200 connected to 3202 require 18W of output power of 9V voltage and 2A current, the first DC/DC converter 3201 and the second DC/DC converter 3202 are bypassed The operation can output 18W power with 9V voltage and 2A current.
  • the AC/DC converter 310 compensates for losses that may occur in the first DC/DC converter 3201 and the second DC/DC converter 3202 , and the first DC/DC converter 3201 and the second It is possible to output a value slightly larger than 9V (eg, 9.2V) required by the DC/DC converter 3202 , and the output voltage is applied to the first DC/DC converter 3201 and the second DC/DC converter 3202 . can be supplied as is.
  • 9V eg, 9.2V
  • the external device 200 is connected to the first DC/DC converter 3201 and the second DC/DC converter 3202 , and the external device 200 is connected to the first DC/DC converter 3201 .
  • the first The DC/DC converter 3201 may output 27W power of 9V voltage and 3A current through the bypass operation
  • the second DC/DC converter 3202 may output 18W power of 9V voltage and 2A current through the bypass operation.
  • the AC/DC converter 310 compensates for losses that may occur in the first DC/DC converter 3201 and the second DC/DC converter 3202 , and the first DC/DC converter 3201 and the second It is possible to output a value slightly larger than 9V (eg, 9.3V) required by the DC/DC converter 3202 , and the output voltage is applied to the first DC/DC converter 3201 and the second DC/DC converter 3202 . can be supplied as is.
  • 9V eg, 9.3V
  • the external device 200 is connected only to the first DC/DC converter 3201, and the external device 200 connected to the first DC/DC converter 3201 generates 45W of 10V voltage and 4.5A current.
  • the first DC/DC converter 3201 may output 45W power of 10V voltage and 4.5A current through a bypass operation.
  • the AC/DC converter 310 compensates for a loss that may occur in the first DC/DC converter 3201 and a value slightly larger than 10V required by the first DC/DC converter 3201 (eg, 10.3V). ) may be output, and the output voltage may be directly supplied to the first DC/DC converter 3201 .
  • the external device 200 is connected only to the first DC/DC converter 3201, and the external device 200 is connected to the first DC/DC converter 3201 at 45W of a voltage of 20V and a current of 2.25A.
  • the first DC/DC converter 3201 may output 45W power of a voltage of 20V and a current of 2.25A through a bypass operation.
  • the AC/DC converter 310 compensates for a loss that may occur in the first DC/DC converter 3201 and a value slightly larger than 20V required by the first DC/DC converter 3201 (eg, 20.3V). ) may be output, and the output voltage may be directly supplied to the first DC/DC converter 3201 .
  • the AC/DC converter 310 of the power transmitter 300 is configured according to information on the total number of connected external devices 200 and information on power required by each external device 200 . Different voltages can be output.
  • FIG. 9 is a block diagram of an electronic device 901 (eg, the power transmitter 100 of FIG. 1 , and the power transmitter 300 of FIG. 2 ) in the network environment 900 , according to various embodiments.
  • an electronic device 901 eg, the power transmitter 100 of FIG. 1 , and the power transmitter 300 of FIG. 2
  • the network environment 900 according to various embodiments.
  • the electronic device 901 communicates with the electronic device 902 through a first network 998 (eg, a short-range wireless communication network) or a second network 999 . It may communicate with the electronic device 904 or the server 908 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 901 may communicate with the electronic device 904 through the server 908 .
  • a first network 998 eg, a short-range wireless communication network
  • a second network 999 e.g., a second network 999 . It may communicate with the electronic device 904 or the server 908 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 901 may communicate with the electronic device 904 through the server 908 .
  • the electronic device 901 includes a processor 920 , a memory 930 , an input module 950 , a sound output module 955 , a display module 960 , an audio module 970 , and a sensor module ( 976), interface 977, connection terminal 978, haptic module 979, camera module 980, power management module 988, battery 989, communication module 990, subscriber identification module 996 , or an antenna module 997 .
  • at least one of these components eg, the connection terminal 978
  • some of these components are integrated into one component (eg, display module 960 ). can be
  • the processor 920 for example, executes software (eg, a program 940) to execute at least one other component (eg, a hardware or software component) of the electronic device 901 connected to the processor 920 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or computation, the processor 920 converts commands or data received from other components (eg, the sensor module 976 or the communication module 990 ) to the volatile memory 932 . may store the command or data stored in the volatile memory 932 , and store the result data in the non-volatile memory 934 .
  • software eg, a program 940
  • the processor 920 converts commands or data received from other components (eg, the sensor module 976 or the communication module 990 ) to the volatile memory 932 .
  • the volatile memory 932 may store the command or data stored in the volatile memory 932 , and store the result data in the non-volatile memory 934 .
  • the processor 920 may include a main processor 921 (eg, a central processing unit or an application processor) or a secondary processor 923 (eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit) capable of operating independently or together with the main processor 921 .
  • a neural processing unit NPU
  • an image signal processor e.g. a sensor hub processor
  • a communication processor e.g. a communication processor.
  • the electronic device 901 includes a main processor 921 and a sub-processor 923
  • the sub-processor 923 uses less power than the main processor 921 or is set to be specialized for a specified function.
  • the coprocessor 923 may be implemented separately from or as part of the main processor 921 .
  • the coprocessor 923 is, for example, on behalf of the main processor 921 while the main processor 921 is in an inactive (eg, sleep) state, or the main processor 921 is active (eg, executing an application). ), together with the main processor 921, at least one of the components of the electronic device 901 (eg, the display module 960, the sensor module 976, or the communication module 990) It is possible to control at least some of the related functions or states.
  • coprocessor 923 eg, image signal processor or communication processor
  • may be implemented as part of another functionally related component eg, camera module 980 or communication module 990. have.
  • the auxiliary processor 923 may include a hardware structure specialized for processing an artificial intelligence model.
  • Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 901 itself on which artificial intelligence is performed, or may be performed through a separate server (eg, the server 908).
  • the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited
  • the artificial intelligence model may include a plurality of artificial neural network layers.
  • Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example.
  • the artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.
  • the memory 930 may store various data used by at least one component of the electronic device 901 (eg, the processor 920 or the sensor module 976 ).
  • the data may include, for example, input data or output data for software (eg, the program 940 ) and instructions related thereto.
  • the memory 930 may include a volatile memory 932 or a non-volatile memory 934 .
  • the program 940 may be stored as software in the memory 930 , and may include, for example, an operating system 942 , middleware 944 , or an application 946 .
  • the input module 950 may receive a command or data to be used in a component (eg, the processor 920 ) of the electronic device 901 from the outside (eg, a user) of the electronic device 901 .
  • the input module 950 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
  • the sound output module 955 may output a sound signal to the outside of the electronic device 901 .
  • the sound output module 955 may include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback.
  • the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.
  • the display module 960 may visually provide information to the outside (eg, a user) of the electronic device 901 .
  • the display module 960 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device.
  • the display module 960 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.
  • the audio module 970 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 970 acquires a sound through the input module 950 , or an external electronic device (eg, a sound output module 955 ) directly or wirelessly connected to the electronic device 901 .
  • the electronic device 902) eg, a speaker or headphones
  • the sensor module 976 detects an operating state (eg, power or temperature) of the electronic device 901 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do.
  • the sensor module 976 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.
  • the interface 977 may support one or more specified protocols that may be used for the electronic device 901 to directly or wirelessly connect with an external electronic device (eg, the electronic device 902 ).
  • the interface 977 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card
  • connection terminal 978 may include a connector through which the electronic device 901 can be physically connected to an external electronic device (eg, the electronic device 902 ).
  • the connection terminal 978 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 979 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense.
  • the haptic module 979 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 980 may capture still images and moving images. According to one embodiment, the camera module 980 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 988 may manage power supplied to the electronic device 901 .
  • the power management module 988 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 989 may supply power to at least one component of the electronic device 901 .
  • battery 989 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
  • the communication module 990 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 901 and an external electronic device (eg, the electronic device 902 , the electronic device 904 , or the server 908 ). It can support establishment and communication performance through the established communication channel.
  • the communication module 990 may include one or more communication processors that operate independently of the processor 920 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
  • the communication module 990 is a wireless communication module 992 (eg, a cellular communication module, a short-range communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 994 (eg, : It may include a local area network (LAN) communication module, or a power line communication module).
  • a wireless communication module 992 eg, a cellular communication module, a short-range communication module, or a global navigation satellite system (GNSS) communication module
  • GNSS global navigation satellite system
  • wired communication module 994 eg, : It may include a local area network (LAN) communication module, or a power line communication module.
  • a corresponding communication module among these communication modules is a first network 998 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 999 (eg, legacy It may communicate with the external electronic device 904 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
  • a first network 998 eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)
  • a second network 999 eg, legacy It may communicate with the external electronic device 904 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
  • These various types of communication modules
  • the wireless communication module 992 may use subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 996 within a communication network such as the first network 998 or the second network 999 .
  • subscriber information eg, International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • the electronic device 901 may be identified or authenticated.
  • the wireless communication module 992 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR).
  • NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)).
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable and low-latency
  • the wireless communication module 992 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
  • a high frequency band eg, mmWave band
  • the wireless communication module 992 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna.
  • the wireless communication module 992 may support various requirements specified in the electronic device 901 , an external electronic device (eg, the electronic device 904 ), or a network system (eg, the second network 999 ).
  • the wireless communication module 992 includes a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.
  • a peak data rate eg, 20 Gbps or more
  • loss coverage eg, 164 dB or less
  • U-plane latency for realizing URLLC
  • the antenna module 997 may transmit or receive a signal or power to the outside (eg, an external electronic device).
  • the antenna module 997 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern.
  • the antenna module 997 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network such as the first network 998 or the second network 999 is connected from the plurality of antennas by, for example, the communication module 990 . can be selected. A signal or power may be transmitted or received between the communication module 990 and an external electronic device through the selected at least one antenna.
  • other components eg, a radio frequency integrated circuit (RFIC)
  • RFIC radio frequency integrated circuit
  • the antenna module 997 may form a mmWave antenna module.
  • the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.
  • peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • the command or data may be transmitted or received between the electronic device 901 and the external electronic device 904 through the server 908 connected to the second network 999 .
  • Each of the external electronic devices 902 and 904 may be the same or a different type of the electronic device 901 .
  • all or part of the operations performed by the electronic device 901 may be executed by one or more external electronic devices among the external electronic devices 902 , 904 , or 908 .
  • the electronic device 901 may instead of executing the function or service itself.
  • one or more external electronic devices may be requested to perform at least a part of the function or the service.
  • One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 901 .
  • the electronic device 901 may process the result as it is or additionally and provide it as at least a part of a response to the request.
  • cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
  • the electronic device 901 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
  • the external electronic device 904 may include an Internet of things (IoT) device.
  • the server 908 may be an intelligent server using machine learning and/or neural networks.
  • the external electronic device 904 or the server 908 may be included in the second network 999 .
  • the electronic device 901 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
  • an intelligent service eg, smart home, smart city, smart car, or health care
  • the electronic device may have various types of devices.
  • the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • a portable communication device eg, a smart phone
  • a computer device e.g., a smart phone
  • a portable multimedia device e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a wearable device e.g., a smart bracelet
  • a home appliance device e.g., a home appliance
  • first, second, or first or second may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.
  • module used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit.
  • a module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 936 or external memory 938) readable by a machine (eg, electronic device 901). may be implemented as software (eg, a program 940) including
  • a processor eg, processor 920
  • a device eg, electronic device 901
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the device-readable storage medium may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.
  • a signal eg, electromagnetic wave
  • the method according to various embodiments disclosed in this document may be provided in a computer program product (computer program product).
  • Computer program products may be traded between sellers and buyers as commodities.
  • the computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones).
  • a portion of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.
  • each component eg, a module or a program of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. have.
  • one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. , or one or more other operations may be added.
  • the power transmission device (eg, the power transmission device 100 of FIG. 1 , the power transmission device 300 of FIG. 2 ) including a plurality of power supply interfaces according to an embodiment is an AC/DC converter ; a plurality of DC/DC converters having a first output power of a first voltage and a first current, the plurality of DC/DC converters respectively corresponding to the plurality of power supply interfaces; and a main control circuit electrically connected to the AC/DC converter and the plurality of DC/DC converters, wherein the main control circuit is configured to: receive connection state information of external devices connected to the plurality of power supply interfaces and, based on the connection state information, determining whether a specific DC/DC converter that requires an output of a second output power greater than the first output power exists among the plurality of DC/DC converters, and the second output power When the specific DC/DC converter that requires the output of The voltage output from the /DC converter may be changed based on the connection state information.
  • the main control circuit when the specific DC/DC converter requesting the output of the second output power does not exist, the main control circuit is configured to perform a power supply interface connected to the external device among the plurality of power supply interfaces.
  • the plurality of DC/DC converters may be controlled to output the first output power.
  • the external device when the specific DC/DC converter requesting the output of the second output power exists, the external device is connected to one DC/DC converter among the plurality of DC/DC converters. and a case in which the specific DC/DC converter that requests the output of the second output power does not exist may include a case in which the external device is connected to all of the plurality of DC/DC converters.
  • each of the plurality of DC/DC converters may include two switch elements connected in series, and the plurality of DC/DC converters alternately turn on and off the two switch elements. to output the first output power to the external device connected to the plurality of power supply interfaces.
  • each of the plurality of DC/DC converters may include two switch elements connected in series, and the main control circuit is the specific DC/DC that requests the output of the second output power.
  • the specific DC/DC converter may be controlled such that one of the two switch elements included in the specific DC/DC converter is turned on and the other switch element is turned off.
  • the main control circuit may be configured to change the voltage output from the AC/DC converter to a value of the second output power.
  • the AC/DC converter may be controlled to be a third voltage greater than the second voltage.
  • the third voltage output from the AC/DC converter may be a voltage compensated for by the second voltage by a voltage lost by a device included in the specific DC/DC converter.
  • connection state information may include information on the number of external devices connected to the plurality of power supply interfaces and information on output power required by external devices connected to the plurality of power supply interfaces. have.
  • the method for controlling output power of a power transmission device including a plurality of power supply interfaces includes: receiving connection state information of an external device connected to the plurality of power supply interfaces; Determining whether there is a specific DC/DC converter requesting output of a second output power greater than a first output power among a plurality of DC/DC converters of the power transmitter based on the connection state information; a DC/DC converter having the first output power of a first voltage and a first current; and when the specific DC/DC converter requesting output of the second output power exists, the specific DC/DC converter such that the voltage output from the AC/DC converter of the power transmission device is directly supplied to the specific DC/DC converter and controlling the DC converter, and the voltage output from the AC/DC converter may be changed based on the connection state information.
  • the external device among the plurality of power supply interfaces may further include controlling the plurality of DC/DC converters to output the first output power from a connected power supply interface.
  • the external device when the specific DC/DC converter requesting the output of the second output power exists, the external device is connected to one DC/DC converter among the plurality of DC/DC converters. and the case in which the specific DC/DC converter requesting the output of the second output power does not exist may include a case in which the external device is connected to all of the plurality of DC/DC converters.
  • each of the plurality of DC/DC converters may include two switch elements connected in series, and the plurality of DC/DC converters alternately turn on and off the two switch elements. to output the first output power to the external device connected to the plurality of power supply interfaces.
  • each of the plurality of DC/DC converters may include two switch elements connected in series, and the operation of controlling the specific DC/DC converter requires the output of the second output power.
  • the specific DC/DC converter that It can include actions.
  • the voltage output from the AC/DC converter is The method may further include controlling the AC/DC converter to be a third voltage greater than a second voltage of the second output power.
  • the third voltage output from the AC/DC converter may be a voltage compensated for by the second voltage by a voltage lost by a device included in the specific DC/DC converter.
  • the power transmission circuit including a plurality of power supply interfaces includes an AC/DC converter; A PWM control circuit for outputting a pulse width modulation (PWM) signal, a plurality of DC/DC converters including two switch elements controlled by the PWM signal, and an inductor, wherein the plurality of DC/DC converters include the two switches designed to output a first output power to an external device connected to the plurality of power supply interfaces by repeating an operation of alternately turning on and off the device; and a main control circuit electrically connected to the AC/DC converter and the plurality of DC/DC converters, wherein the main control circuit is configured to: receive connection state information of the external devices connected to the plurality of power supply interfaces; Receive, based on the connection state information, determine whether a specific DC/DC converter that requires an output of a second output power greater than the first output power among the plurality of DC/DC converters exists, and the second output When the specific DC/DC converter that requires the output of power exists, the specific DC/DC converter
  • the main control circuit when the specific DC/DC converter that requests the output of the second output power exists, the main control circuit is configured to transmit a voltage output from the AC/DC converter to the specific DC/DC converter. It is possible to control the PWM control circuit of the specific DC/DC converter to be directly input and output to an external device connected to the power supply interface through the switched on and inductor of the specific DC/DC converter.
  • the main control circuit when the specific DC/DC converter requesting the output of the second output power exists, the main control circuit may include a voltage greater than the voltage of the second output power in the AC/DC converter. It is possible to control the AC/DC converter to output.
  • the switch device may be a field effect transistor (FET), and the field effect transistor may include a metal oxide semiconductor field effect transistor (MOSFET).
  • FET field effect transistor
  • MOSFET metal oxide semiconductor field effect transistor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention concerne un dispositif de distribution d'énergie comprenant une pluralité d'interfaces d'alimentation en énergie, le dispositif de distribution d'énergie comprenant : un convertisseur c.a./c.c.; une pluralité de convertisseurs c.c./c.c. ayant une première énergie de sortie d'une première tension et d'un premier courant; et un circuit de commande principal connecté électriquement au convertisseur c.a./c.c. et à la pluralité de convertisseurs c.c./c.c. Le circuit de commande principal reçoit des informations d'état de connexion d'un dispositif externe connecté à la pluralité d'interfaces d'alimentation en énergie, détermine, sur la base des informations d'état de connexion, s'il existe un convertisseur c.c./c.c. spécifique, qui demande une sortie d'une seconde énergie de sortie supérieure à la première énergie de sortie, parmi la pluralité de convertisseurs c.c./c.c., et commande, lorsque le convertisseur c.c./c.c. spécifique demandant la sortie de la seconde énergie de sortie existe, le convertisseur c.c./c.c. spécifique de telle sorte qu'une sortie de tension provenant du convertisseur c.a./c.c. est directement fournie au convertisseur c.c./c.c. spécifique, la sortie de tension provenant du convertisseur c.a./c.c. étant modifiée sur la base des informations d'état de connexion. Divers autres modes de réalisation identifiés par la présente invention sont possibles.
PCT/KR2022/003611 2021-03-18 2022-03-15 Procédé de commande d'énergie de sortie d'un dispositif de distribution d'énergie comprenant une pluralité d'interfaces d'alimentation en énergie, et son dispositif de distribution d'énergie WO2022197067A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0035226 2021-03-18
KR1020210035226A KR20220130396A (ko) 2021-03-18 2021-03-18 복수 개의 전력 공급 인터페이스를 포함하는 전력 전송 장치의 출력 전력 제어 방법 및 그 전력 전송 장치

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WO2022197067A1 true WO2022197067A1 (fr) 2022-09-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100073115A (ko) * 2008-12-22 2010-07-01 한국전자통신연구원 전력선 통신을 이용한 다중 가변 출력 직류전원 공급장치 및 방법
KR20120005801A (ko) * 2010-07-09 2012-01-17 주식회사 포스코아이씨티 직류 전압 분배 장치 및 이를 이용한 전원 공급 시스템
KR20120054818A (ko) * 2010-11-22 2012-05-31 (주)베리파인 전원공급장치 및 이를 위한 제어방법
US20120163054A1 (en) * 2008-07-11 2012-06-28 Em Microelectronic-Marin S.A. Power supply unit having a voltage converter
JP2013511246A (ja) * 2009-11-11 2013-03-28 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト 自動車用の多電圧式車載電力供給装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120163054A1 (en) * 2008-07-11 2012-06-28 Em Microelectronic-Marin S.A. Power supply unit having a voltage converter
KR20100073115A (ko) * 2008-12-22 2010-07-01 한국전자통신연구원 전력선 통신을 이용한 다중 가변 출력 직류전원 공급장치 및 방법
JP2013511246A (ja) * 2009-11-11 2013-03-28 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト 自動車用の多電圧式車載電力供給装置
KR20120005801A (ko) * 2010-07-09 2012-01-17 주식회사 포스코아이씨티 직류 전압 분배 장치 및 이를 이용한 전원 공급 시스템
KR20120054818A (ko) * 2010-11-22 2012-05-31 (주)베리파인 전원공급장치 및 이를 위한 제어방법

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