Charging device

Abstract

An embodiment provides a charging device comprising: a first charging unit and a second charging unit; a first output unit and a second output unit which are connected to the first charging unit and the second charging unit; and a control unit which communicates with the first charging unit and the second charging unit, wherein the first charging unit includes a first switch and a second switch, the second charging unit includes a third switch and a fourth switch, the first switch and the third switch are connected to the first output unit, and the second switch and the fourth switch are connected to the second output unit.

Description

Charging device

[0001] The embodiment relates to a charging device. Specifically, the embodiment relates to a charging device comprising a multi-output power module for charging electric vehicles.

[0002] As research and development for electric vehicles, energy storage batteries, robots, and satellites intensifies, research on high-performance batteries capable of repeated charging and discharging is also actively underway. Currently commercialized battery packs include rechargeable storage devices such as nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, and lithium-ion batteries.

[0003] As battery systems are used in various fields, their capacities are also becoming more diverse. Large-capacity battery systems can be configured by connecting battery modules in parallel. In the case of electric vehicle chargers, power distribution is required when charging multiple vehicles with a single charger. When a power module is installed in the charger, it is connected to the vehicles via a switch for power distribution. In this scenario, the charger faces the problem of increased complexity and cost burden due to the need to control the power distribution switch.

[0004] An embodiment provides a charging device that can simplify the configuration of the device required for electric vehicle charging.

[0005] In addition, it provides a charging device that can increase management efficiency and reduce management costs.

[0006] In addition, it provides a charging device capable of power distribution without additional hardware outside the power module.

[0007] In addition, it provides a charging device that facilitates power distribution.

[0008] The problem to be solved in the embodiments is not limited thereto, and may also include objectives or effects that can be identified from the means of solving the problem or the forms of implementation described below.

[0009] A charging device according to an embodiment includes a first charging unit and a second charging unit; a first output unit and a second output unit connected to the first charging unit and the second charging unit; and a control unit that communicates with the first charging unit and the second charging unit, wherein the first charging unit includes a first switch and a second switch, and the second charging unit includes a third switch and a fourth switch, wherein the first switch and the third switch are connected to the first output unit, and the second switch and the fourth switch may be connected to the second output unit.

[0010] The first charging unit includes a first converter, and the first converter can be connected to the first switch and the second switch.

[0011] The first charging unit includes a first controller that controls the first switch and the second switch, and the second charging unit may include a second controller that controls the third switch and the fourth switch.

[0012] The first switch and the second switch may be placed inside the first charging unit, and the third switch and the fourth switch may be placed inside the second charging unit.

[0013] The first switch and the third switch are connected to the first output unit through the first node, and the second switch and the fourth switch can be connected to the second output unit through a second node different from the first node.

[0014] The first switch and the second switch can be connected in parallel to the first converter.

[0015] The charging device according to the embodiment further includes a third charging unit and a fourth charging unit, wherein the third charging unit includes a fifth switch and a sixth switch, and the fourth charging unit may include a seventh switch and an eighth switch.

[0016] The above-mentioned fifth switch and the above-mentioned seventh switch are connected to the first output unit through the first node, and the above-mentioned sixth switch and the above-mentioned eighth switch can be connected to the second output unit through the second node.

[0017] The first output unit and the second output unit can be connected in parallel to the first charging unit and the second charging unit.

[0018] The first charging unit supplies a first power, the second charging unit supplies a second power, and the first output power of the first output unit may be equal to the sum of the first power and the second power.

[0019] The above control unit can transmit a signal to the first controller to determine whether to supply power to the first output unit and the second output unit.

[0020] A charging device according to an embodiment includes a charging unit comprising a plurality of power modules; a main controller that communicates with each of the plurality of power modules; and a plurality of charging connectors that output power supplied by the charging unit to the outside. Each of the plurality of power modules includes a plurality of switches connected in parallel, and each of the plurality of switches can be connected to each of the plurality of charging connectors.

[0021] Each of the above multiple power modules includes a sub-controller inside, and the sub-controller can control the on / off of the switch disposed inside each of the power modules including the sub-controller.

[0022] According to an embodiment, a charging device can be provided that can simplify the configuration of the device required for electric vehicle charging.

[0023] In addition, it is possible to provide a charging device that increases management efficiency and reduces management costs.

[0024] In addition, a charging device capable of power distribution without additional hardware outside the power module can be provided.

[0025] In addition, a charging device that facilitates power distribution can be provided.

[0026] The various and beneficial advantages and effects of the present invention are not limited to those described above and may be more easily understood in the process of explaining specific embodiments of the present invention.

[0027] FIG. 1 is a configuration diagram of a charging device according to an embodiment, and

[0028] FIG. 2 is a block diagram for explaining a charging device according to an embodiment, and

[0029] FIG. 3 is an illustrative diagram explaining a charging device according to an embodiment, and

[0030] FIG. 4 is an example diagram of a charging section of a charging device according to an embodiment.

[0031] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0032] However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted.

[0033] In addition, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a sense that is generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms that are commonly used, such as terms defined in advance, may be interpreted in consideration of their meaning in the context of the relevant technology.

[0034] Furthermore, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0035] In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as "at least one of A and B and C (or more than one)," it may include one or more of all combinations that can be formed from A, B, and C.

[0036] In addition, terms such as first, second, A, B, (a), (b), etc. may be used when describing the components of the embodiments of the present invention.

[0037] These terms are intended merely to distinguish a component from other components and are not limited by the nature, order, sequence, etc., of the said component.

[0038] And, where it is stated that a component is 'connected', 'combined', or 'joined' to another component, this may include not only cases where the component is directly connected, combined, or joined to the other component, but also cases where it is 'connected', 'combined', or 'joined' due to another component located between the component and the other component.

[0039] Furthermore, when described as being formed or placed "above or below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as "above or below," it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0040] FIG. 1 is a configuration diagram of a charging device according to an embodiment, and FIG. 2 is a block diagram for explaining a charging device according to an embodiment.

[0041] Referring to FIGS. 1 and FIGS. 2, a charging device (1000) according to an embodiment may include a charging unit (100), an output unit (200), and a control unit (300).

[0042] The charging unit (100) can supply power for charging. The charging unit (100) may include a power module or a battery. The charging unit (100) may be placed inside a charging device (1000). The charging unit (100) may include a plurality of charging units. The charging unit (100) may be electrically connected to an output unit (200) and a control unit (300). The charging unit (100) may communicate with the control unit (300) to receive a signal from the control unit (300) containing information about the status of the output unit (200) or another charging unit (100). Additionally, the charging unit (100) may control a switch placed inside itself to supply or not supply power to the output unit (200). The charging unit (100) may include a plurality of switches, converters, and controllers.

[0043] The output unit (200) can output power to the outside. The output unit (200) can be connected to an external terminal. The output unit (200) can supply power through the external terminal to charge a charging target (e.g., an electric vehicle) connected to the external terminal. The output unit (200) can be connected to the charging unit (100). The output unit (200) can receive power from the charging unit (100). The output unit (200) can receive power simultaneously from a plurality of charging units connected to a node. The output unit (200) may include a plurality of output units. For example, the output unit (200) may include a charging connector.

[0044] The control unit (300) can communicate with the charging unit (100). The control unit (300) can receive information regarding the charging status voltage value, management status, connection status of the output unit, etc. of each of the plurality of charging units. The control unit (300) can transmit information regarding the status of the charging device to the charging unit (100). The control unit (300) can communicate with each of the plurality of charging units. The control unit (300) can perform CAN communication with the charging unit. The control unit (300) can transmit a signal determining whether to supply power to the charging unit by communicating with the charging unit. The control unit (300) may correspond to a main controller. The control unit (300) may include a battery voltage detection unit for detecting the voltage of each charging unit (100).

[0045] FIG. 3 is an illustrative diagram illustrating a charging device according to an embodiment, and FIG. 4 is an illustrative diagram of a first charging part of a charging device according to an embodiment.

[0046] Referring to FIG. 3, the charging device (1000) may include first to fourth charging units (110, 120, 130, 140). The first to fourth charging units (110, 120, 130, 140) may be independently arranged inside the charging device (1000). The first to fourth charging units (110, 120, 130, 140) may be connected in parallel with each other. The first to fourth charging units (110, 120, 130, 140) may each communicate with a control unit (300). Additionally, the first to fourth charging units (110, 120, 130, 140) may each be connected to a first output unit (210) and a second output unit (220). The first to fourth charging units (110, 120, 130, 140) may each include two switches.

[0047] The first charging unit (110) may include a first switch (111) and a second switch (112). The first switch (111) and the second switch (112) are connected to a first converter (113) to supply power to or cut off power to the outside of the first charging unit (110). The first switch (111) and the second switch (112) may be controlled by a first controller (114). The first switch (111) and the second switch (112) may be controlled to be on / off by the control of the first controller (114). The first switch (111) and the second switch (112) may be connected in parallel with the first converter (113). The first switch (111) and the second switch (112) are connected in parallel so that power can be supplied to each other through different paths. The first switch (111) and the second switch (112) may be positioned between the first converter (113) and the first output unit (210) or between the first converter (113) and the second output unit (220). Additionally, the first switch (111) may be positioned between the first converter (113) and the first node (N1), and the second switch (112) may be positioned between the first converter (113) and the second node (N2). The first node (N1) may be a node connected to the first output unit (210), and the second node (N2) may be a node connected to the second output unit (220). When the first switch (111) is in the ON state, the first charging unit (110) can supply power to the first output unit (210), and when the second switch (112) is in the ON state, the first charging unit (110) can supply power to the second output unit (220). The first switch (111) and the second switch (112) can be placed inside the first charging unit (110). Since the first switch (111) and the second switch (112) are placed inside the first charging unit (110) and can be controlled internally within the first charging unit (110), a separate external management device is not required, thereby increasing management efficiency. Additionally, the configuration of the charging device can be simplified.In addition, the charging unit includes two switches, each of which can be controlled, allowing for diversification of the power supply path and facilitating power distribution.

[0048] The first charging unit (110) may include a first converter (113). The first converter (113) may convert input power and output it. The first converter (113) may include an AC / DC converter that converts alternating current to direct current and a DC / DC converter that converts direct current to direct current. Additionally, the first converter (113) may include a device that converts power, voltage, current, etc. The first converter (113) may be connected to a first switch (111) and a second switch (112). The power supplied by the first converter (113) may be supplied to the outside of the first charging unit (110) through the first switch (111) and the second switch (112). Additionally, the first converter (113) may be controlled by a first controller (114). Referring to FIG. 4, the first converter (113) may include a first sub-converter (113a) and a second sub-converter (113b). The first sub-converter (113a) may be an AC / DC converter, and the second sub-converter (113b) may be a DC / DC converter.

[0049] The first charging unit (110) may include a first controller (114). The first controller (114) can control the first charging unit (110). The first controller (114) can control the conversion of power by controlling the first converter (113). Additionally, the first controller (114) can control the first switch (111) and the second switch (112). The first controller (114) can control the on / off of the first switch (111) and the second switch (112), respectively. The first controller (114) is placed inside the first charging unit (110) and directly controls the first switch (111) and the second switch (112) inside the first charging unit (110), thereby reducing the control burden on the control unit (300) and making it easier to control the switches. Referring to FIG. 4, the first controller (114) may include a first sub-controller (114a) and a second sub-controller (114b). The first sub-controller (114a) can control the first sub-converter (113a), and the second sub-controller (114b) can control the second sub-converter (113b).

[0050] The second charging unit (120) may include a third switch (121) and a fourth switch (122). The third switch (121) and the fourth switch (122) are connected to the second converter (123) to supply power to or cut off power to the outside of the second charging unit (120). The third switch (121) and the fourth switch (122) may be controlled by the second controller (124). The third switch (121) and the fourth switch (122) may be controlled to be on / off by the control of the second controller (124). The third switch (121) and the fourth switch (122) may be connected in parallel with the second converter (123). The third switch (121) and the fourth switch (122) are connected in parallel so that power can be supplied to different paths, respectively. The third switch (121) and the fourth switch (122) may be positioned between the second converter (123) and the first output unit (210) or between the second converter (123) and the second output unit (220). Additionally, the third switch (121) may be positioned between the second converter (123) and the first node (N1), and the fourth switch (122) may be positioned between the second converter (123) and the second node (N2). When the third switch (121) is in the ON state, the second charging unit (120) can supply power to the first output unit (210), and when the fourth switch (122) is in the ON state, the second charging unit (120) can supply power to the second output unit (220). The third switch (121) and the fourth switch (122) may be positioned inside the second charging unit (120). The third switch (121) and the fourth switch (122) are placed inside the second charging unit (120) and can be controlled internally within the second charging unit (120), thereby eliminating the need for a separate external management device and increasing management efficiency. Additionally, the configuration of the charging device can be simplified. Furthermore, the charging unit includes two switches, each of which can be controlled, allowing for diversification of the power supply path and facilitating power distribution.

[0051] The second charging unit (120) may include a second converter (123). The second converter (123) may convert input power and output it. The second converter (123) may include an AC / DC converter that converts alternating current to direct current and a DC / DC converter that converts direct current to direct current. Additionally, the second converter (123) may include a device that converts power, voltage, current, etc. The second converter (123) may be connected to a third switch (121) and a fourth switch (122). The power supplied by the second converter (123) may be supplied to the outside of the second charging unit (120) through the third switch (121) and the fourth switch (122). Additionally, the second converter (123) may be controlled by a second controller (124).

[0052] The second charging unit (120) may include a second controller (124). The second controller (124) can control the second charging unit (120). The second controller (124) can control the conversion of power by controlling the second converter (123). Additionally, the second controller (124) can control the third switch (121) and the fourth switch (122). The second controller (124) can control the on / off of the third switch (121) and the fourth switch (122), respectively. The second controller (124) is placed inside the second charging unit (120) and directly controls the third switch (121) and the fourth switch (122) inside the second charging unit (120), thereby reducing the control burden on the control unit (300) and making it easier to control the switches.

[0053] The third charging unit (130) may include a fifth switch (131) and a sixth switch (132). The fifth switch (131) and the sixth switch (132) are connected to the third converter (133) to supply power to or cut off power to the outside of the third charging unit (130). The fifth switch (131) and the sixth switch (132) may be controlled by the third controller (134). The fifth switch (131) and the sixth switch (132) may be controlled to be on / off by the control of the third controller (134). The fifth switch (131) and the sixth switch (132) may be connected in parallel with the third converter (133). The fifth switch (131) and the sixth switch (132) are connected in parallel so that power can be supplied to each other through different paths. The fifth switch (131) and the sixth switch (132) may be positioned between the third converter (133) and the first output unit (210) or between the third converter (133) and the second output unit (220). Additionally, the fifth switch (131) may be positioned between the third converter (133) and the first node (N1), and the sixth switch (132) may be positioned between the third converter (133) and the second node (N2). When the fifth switch (131) is in the ON state, the third charging unit (130) can supply power to the first output unit (210), and when the sixth switch (132) is in the ON state, the third charging unit (130) can supply power to the second output unit (220). The fifth switch (131) and the sixth switch (132) may be positioned inside the third charging unit (130). The fifth switch (131) and the sixth switch (132) are placed inside the third charging unit (130) and can be controlled internally within the third charging unit (130), thereby eliminating the need for a separate external management device and increasing management efficiency. Additionally, the configuration of the charging device can be simplified. Furthermore, the charging unit includes two switches, each of which can be controlled, allowing for diversification of the power supply path and facilitating power distribution.

[0054] The third charging unit (130) may include a third converter (133). The third converter (133) may convert input power and output it. The third converter (133) may include an AC / DC converter that converts alternating current to direct current and a DC / DC converter that converts direct current to direct current. Additionally, the third converter (133) may include a device that converts power, voltage, current, etc. The third converter (133) may be connected to the fifth switch (131) and the sixth switch (132). The power supplied by the third converter (133) may be supplied to the outside of the third charging unit (130) through the fifth switch (131) and the sixth switch (132). Additionally, the third converter (133) may be controlled by the third controller (134).

[0055] The third charging unit (130) may include a third controller (134). The third controller (134) can control the third charging unit (130). The third controller (134) can control the third converter (133) to regulate the conversion of power. Additionally, the third controller (134) can control the fifth switch (131) and the sixth switch (132). The third controller (134) can control the on / off of the fifth switch (131) and the sixth switch (132), respectively. The third controller (134) is placed inside the third charging unit (130) and directly controls the fifth switch (131) and the sixth switch (132) from inside the third charging unit (130), thereby reducing the control burden on the control unit (300) and making it easier to control the switches.

[0056] The fourth charging unit (140) may include a seventh switch (141) and an eighth switch (142). The seventh switch (141) and the eighth switch (142) are connected to the fourth converter (143) to supply power to or cut off power to the outside of the fourth charging unit (140). The seventh switch (141) and the eighth switch (142) may be controlled by the fourth controller (144). The seventh switch (141) and the eighth switch (142) may be controlled to be on / off by the control of the fourth controller (144). The seventh switch (141) and the eighth switch (142) may be connected in parallel with the fourth converter (143). The seventh switch (141) and the eighth switch (142) are connected in parallel so that power can be supplied to different paths, respectively. The seventh switch (141) and the eighth switch (142) may be positioned between the fourth converter (143) and the first output unit (210) or between the fourth converter (143) and the second output unit (220). Additionally, the seventh switch (141) may be positioned between the fourth converter (143) and the first node (N1), and the eighth switch (142) may be positioned between the fourth converter (143) and the second node (N2). When the seventh switch (141) is in the ON state, the fourth charging unit (140) can supply power to the first output unit (210), and when the eighth switch (142) is in the ON state, the fourth charging unit (140) can supply power to the second output unit (220). The seventh switch (141) and the eighth switch (142) may be positioned inside the fourth charging unit (140). The 7th switch (141) and the 8th switch (142) are placed inside the 4th charging unit (140) and can be controlled internally within the 4th charging unit (140), thereby eliminating the need for a separate external management device and increasing management efficiency. Additionally, the configuration of the charging device can be simplified. Furthermore, the charging unit includes two switches, each of which can be controlled, allowing for diversification of the power supply path and facilitating power distribution.

[0057] The fourth charging unit (140) may include a fourth converter (143). The fourth converter (143) may convert input power and output it. The fourth converter (143) may include an AC / DC converter that converts alternating current to direct current and a DC / DC converter that converts direct current to direct current. Additionally, the fourth converter (143) may include a device that converts power, voltage, current, etc. The fourth converter (143) may be connected to the seventh switch (141) and the eighth switch (142). The power supplied by the fourth converter (143) may be supplied to the outside of the fourth charging unit (140) through the seventh switch (141) and the eighth switch (142). Additionally, the fourth converter (143) may be controlled by the fourth controller (144).

[0058] The fourth charging unit (140) may include a fourth controller (144). The fourth controller (144) can control the fourth charging unit (140). The fourth controller (144) can control the conversion of power by controlling the fourth converter (143). Additionally, the fourth controller (144) can control the seventh switch (141) and the eighth switch (142). The fourth controller (144) can control the on / off of the seventh switch (141) and the eighth switch (142), respectively. The fourth controller (144) is placed inside the fourth charging unit (140) and directly controls the seventh switch (141) and the eighth switch (142) from inside the fourth charging unit (140), thereby reducing the control burden on the control unit (300) and making it easier to control the switches.

[0059] The charging device (1000) may include a first output unit (210) and a second output unit (220). The first output unit (210) and the second output unit (220) may each output power to the outside. The first output unit (210) and the second output unit (220) may each be connected to an external terminal to charge a charging target connected to the external terminal. The first output unit (210) and the second output unit (220) may each be connected to the first to fourth charging units (110, 120, 130, 140). The first output unit (210) and the second output unit (220) may be connected to a plurality of switches of the first to fourth charging units (110, 120, 130, 140). The charging device (1000) includes a first output unit (210) and a second output unit (220) to simultaneously charge a plurality of charging targets, and can perform charging by controlling each of the plurality of output units separately.

[0060] The first output unit (210) can be connected to the first switch (111), the third switch (121), the fifth switch (131), and the seventh switch (141). The first output unit (210) can be connected to the first switch (111), the third switch (121), the fifth switch (131), and the seventh switch (141) through the first node (N1). The first output unit (210) can be connected to each of the switches of the first to fourth charging units (110, 120, 130, 140). Since power output through one output unit can be supplied from multiple charging units and each of multiple charging units can be controlled, it may be easy to control the power output through one output unit.

[0061] The second output unit (220) can be connected to the second switch (112), the fourth switch (122), the sixth switch (132), and the eighth switch (142). The second output unit (220) can be connected to the second switch (112), the fourth switch (122), the sixth switch (132), and the eighth switch (142) through the second node (N2). The second output unit (220) can be connected to each of the switches of the first to fourth charging units (110, 120, 130, 140). Since power output through a single output unit can be supplied from multiple charging units and each of the multiple charging units can be controlled, it may be easy to control the power output through a single output unit.

[0062] The first to fourth charging units (110, 120, 130, 140) can each supply power to an output unit. The first charging unit can supply first power, the second charging unit can supply second power, the third charging unit can supply third power, and the fourth charging unit can supply fourth power. Each charging unit may supply or not supply power to the first output unit (210) and the second output unit (220). For example, the first charging unit (110) may supply first power to the first output unit (210) and not supply first power to the second output unit (220). At this time, the first switch (111) of the first charging unit (110) may be in the ON state and the second switch (112) may be in the OFF state. The first charging unit (110) and the second charging unit (120) can simultaneously supply power to a single output unit. When the first switch (111) of the first charging unit (110) and the third switch (121) of the second charging unit (120) are in the ON state, the first power of the first charging unit (110) and the second power of the second charging unit (120) are supplied to the first output unit (210), so that the first output power of the first output unit (210) can be the sum of the first power and the second power. Since each of the multiple charging units can supply power to each of the multiple output units and control each power supply, the management efficiency of the charging device is increased, the control of the output power is easy, and the power supply path can be diversified.

[0063] Although the invention has been described above with reference to embodiments, this is merely illustrative and does not limit the invention. Those skilled in the art will understand that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the embodiments. For example, each component specifically shown in the embodiments may be modified and implemented. Furthermore, differences related to such modifications and applications should be interpreted as being included within the scope of the invention as defined in the appended claims.

Claims

1. First charging unit and second charging unit; A first output unit and a second output unit connected to the first charging unit and the second charging unit; and It includes a control unit that communicates with the first charging unit and the second charging unit, and The above-mentioned first charging unit includes a first switch and a second switch, and The above-mentioned second charging unit includes a third switch and a fourth switch, and The first switch and the third switch are connected to the first output unit, and The second switch and the fourth switch are a charging device connected to the second output unit.

2. In Paragraph 1, The above-mentioned first charging unit includes a first converter, and The first converter is a charging device connected to the first switch and the second switch.

3. In Paragraph 2, The first charging unit includes a first controller that controls the first switch and the second switch, and The above-mentioned second charging unit is a charging device comprising a second controller that controls the above-mentioned third switch and the above-mentioned fourth switch.

4. In Paragraph 1, The first switch and the second switch are disposed inside the first charging unit, and The third switch and the fourth switch are a charging device disposed inside the second charging unit.

5. In Paragraph 1, The first switch and the third switch are connected to the first output unit through the first node, and The above-mentioned second switch and the above-mentioned fourth switch are a charging device connected to a second output unit through a second node different from the first node.

6. In Paragraph 2, The first switch and the second switch are a charging device connected in parallel to the first converter.

7. In Paragraph 5, It further includes a third charging unit and a fourth charging unit, and The above-mentioned third charging unit includes a fifth switch and a sixth switch, and The above-mentioned fourth charging unit is a charging device comprising a seventh switch and an eighth switch.

8. In Paragraph 7, The above-mentioned fifth switch and the above-mentioned seventh switch are connected to the first output unit through the above-mentioned first node, and The above-mentioned sixth switch and eighth switch are a charging device connected to the second output unit through the second node.

9. In Paragraph 1, A charging device in which the first output unit and the second output unit are connected in parallel to the first charging unit and the second charging unit.

10. In Paragraph 1, The first charging unit supplies first power, and the second charging unit supplies second power, and A charging device in which the first output power of the first output section is equal to the sum of the first power and the second power.

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