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CN201251756Y - Power supply device of multifunctional notebook computer adopting battery - Google Patents

Power supply device of multifunctional notebook computer adopting battery Download PDF

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Publication number
CN201251756Y
CN201251756Y CNU2008201465025U CN200820146502U CN201251756Y CN 201251756 Y CN201251756 Y CN 201251756Y CN U2008201465025 U CNU2008201465025 U CN U2008201465025U CN 200820146502 U CN200820146502 U CN 200820146502U CN 201251756 Y CN201251756 Y CN 201251756Y
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China
Prior art keywords
power
power output
usb
socket
power supply
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Expired - Fee Related
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CNU2008201465025U
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Chinese (zh)
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黄金富
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Individual
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Abstract

A power supply device of multifunctional notebook computer adopting battery comprises a power supply input socket (2), a USB A type socket (3), a 5V power supply output socket (4), a 12V power supply output socket (5), a cell phone power supply output socket (6), a camera power supply output socket (7), a USB Mini-B type socket (8), a computer power supply output socket (9), and a charging circuit (21), a DC-DC voltage conversion circuit (22) and a USB concentrator circuit (23) arranged in a casing (1), wherein the charging circuit (21) charges for each battery (11) through power which is input, and the DC-DC voltage conversion circuit (22) converts power of each battery (11) into power supplies of a plurality of different voltages to output to each socket, and the USB interface connected with the USB Mini-B type socket (8) is expanded to be a plurality of USB interfaces by the USB concentrator circuit (23).

Description

Power supply device of multifunctional notebook computer using battery
[ technical field ] A method for producing a semiconductor device
The utility model relates to the field of electronic technology, especially, relate to a power supply device of multi-functional notebook computer who adopts the battery.
[ background of the invention ]
A typical notebook computer is provided with an external power supply, and the notebook computer is operated by the power supplied from the power supply. Since the notebook computer is convenient to carry, many people can use the notebook computer for work outside, especially in the outdoor places without AC power supply, the notebook computer can still work, but if the battery in the notebook computer runs out, the notebook computer can be used after being charged. In addition, besides carrying the notebook computer, many people can also carry some low-power-consumption devices such as mobile phones, bluetooth headsets, MP3, digital cameras, etc. and if the low-power-consumption devices are dead, the devices can be used after being charged, so that it is very inconvenient for the people who go out to work to carry the power supply of the notebook computer and the charger of the low-power-consumption devices at the same time. The power supply can be used outdoors to supply power to notebook computers, mobile phones, Bluetooth earphones, MP3, digital cameras and other devices, and is greatly convenient for people who often go out of office.
[ Utility model ] content
An object of the present invention is to provide a power supply device for a multifunctional notebook computer using a battery, which can supply power to the notebook computer, and can also output power to a mobile phone, a bluetooth headset, an MP3, a digital camera, and other devices with low power consumption, and provide a USB hub function.
The utility model aims at realizing like this, adopt such a power supply unit, its characterized in that, power supply unit including be located power input socket (2) on shell (1), one to a plurality of USB A type socket (3), one to a plurality of 5V power output socket (4), one to a plurality of 12V power output socket (5), one to a plurality of cell-phone power output socket (6), one to a plurality of camera power output socket (7), USB Mini-B type socket (8), computer power output socket (9), and be located charging circuit (21), DC-DC voltage conversion circuit (22), USB concentrator circuit (23) in shell (1), wherein, shell (1) be equipped with battery cover (101) and be used for holding battery room (102) of battery (11), and, power supply unit to the electric power of will follow power input socket (2) input through charging circuit (21) charging circuit (23) The battery (11) in the battery chamber (102) is charged, the power supply device converts the power output by the battery (11) in the battery chamber (102) into a plurality of power supplies with different voltages through a DC-DC voltage conversion circuit (22) and outputs the power to each USB A-type socket (3), each 5V power output socket (4), each 12V power output socket (5), each mobile phone power output socket (6), each camera power output socket (7) and a computer power output socket (9), and the power supply device expands one USB interface connected with the USB Mini-B type socket (8) into a plurality of USB interfaces to each USB A-type socket (3) through a USB hub circuit (23).
The utility model discloses a power supply device charges each battery (11) in the battery room (102) from the power of power input socket (2) input through charging circuit (21), and the power output that the power supply device just can pass through DC-DC voltage conversion circuit (22) and convert the electric power of each battery (11) output in battery room (102) into a plurality of different voltages after charging is for equipment such as notebook computer, cell-phone, bluetooth headset, MP3, digital camera and uses.
Thus, the purpose of the utility model is realized.
The utility model discloses a power supply device can be simultaneously to notebook computer and the equipment of the low power consumption of platform like supply sources such as cell-phone, bluetooth earphone, MP3, digital camera, be particularly suitable for some often go out work or go on business and carry the people of notebook computer to use, as long as carry the utility model discloses a power supply ware and notebook computer just need not to carry the charger of cell-phone, bluetooth earphone, MP3, digital camera etc..
[ description of the drawings ]
Fig. 1 is a three-dimensional schematic illustration of a power supply device according to a first embodiment of the present invention;
fig. 2 is a three-dimensional schematic illustration of the power supply device according to the first embodiment of the present invention when the battery cover is opened;
fig. 3 is a schematic explanatory diagram of a circuit configuration of a power supply device according to a first embodiment of the present invention;
fig. 4 is a three-dimensional schematic illustration of a power supply device according to a second embodiment of the present invention;
fig. 5 is a pictorial three-dimensional schematic explanatory view of the power supply device according to the second embodiment of the present invention when the battery cover is opened;
fig. 6 is a three-dimensional schematic illustration of a power supply device according to a third embodiment of the present invention when a battery cover is opened;
fig. 7 is a three-dimensional schematic illustration of a power supply device according to a fourth embodiment of the present invention when a battery cover is opened;
fig. 8 is a pictorial three-dimensional schematic explanatory view of a power supply device according to a fifth embodiment of the present invention when a battery cover is opened;
fig. 9 is a three-dimensional schematic illustration of a power supply device according to a sixth embodiment of the present invention when a battery cover is opened.
In the drawings, like numerals represent like component parts, which are schematic in order to illustrate the constituents and main features of the present invention.
[ detailed description ] embodiments
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a three-dimensional schematic illustration of a power supply device according to a first embodiment of the present invention, fig. 2 is a three-dimensional schematic illustration of a power supply device according to a first embodiment of the present invention when a battery cover is opened, the power supply device shown in fig. 1 and 2 includes a power input socket (2) located on a housing (1), one or more USB a-type sockets (3), one or more 5V power output sockets (4), one or more 12V power output sockets (5), one or more mobile phone power output sockets (6), one or more camera power output sockets (7), a USB Mini-B type socket (8), a computer power output socket (9), and a charging circuit (21), a DC-DC voltage conversion circuit (22), and a power output circuit (2) that are not shown in fig. 1 and are located in the housing (1), A USB hub circuit (23), wherein the housing (1) is provided with a battery cover (101) and a battery chamber (102) for accommodating batteries (11), the power supply device charges the batteries (11) in the battery chamber (102) through a charging circuit (21) by the power input from the power input socket (2), and converts the power output by the batteries (11) in the battery chamber (102) into a plurality of power sources with different voltages through a DC-DC voltage conversion circuit (22) and outputs the power sources to the USB A-type sockets (3), the 5V power output sockets (4), the 12V power output sockets (5), the mobile phone power output sockets (6), the camera power output sockets (7) and the computer power output socket (9) respectively, and the power supply device connects the USB Mini-B type sockets (8) through the USB hub circuit (23) The USB interfaces are expanded into a plurality of USB interfaces to the respective USB A-type sockets (3).
Referring to fig. 3, fig. 3 is a schematic circuit structure diagram of a power supply device according to a first embodiment of the present invention, the DC-DC voltage conversion circuit (22) shown in fig. 3 is provided with a set of input terminals and five sets of DC power output terminals, the five sets of DC power output terminals include a 12V DC power output terminal, a 5V DC power output terminal, an 8.4V DC power output terminal, a 4.2V DC power output terminal, and a computer power output terminal, the DC-DC voltage conversion circuit (22) converts the power input from the input terminals into five DC power sources with different voltages, including a 12V DC power source, a 5V DC power source, an 8.4V DC power source, a 4.2V DC power source, and a computer power source, and outputs the DC power sources to each socket through the output terminals corresponding to the voltages,
wherein,
the input end of the DC-DC voltage conversion circuit (22) is connected with the output terminal of the battery chamber (102) in a circuit mode, and the DC-DC voltage conversion circuit (22) inputs power from the output terminal of the battery chamber (102);
the 5V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with the 5V power output sockets (4) and the power supply terminal and the grounding terminal of the USB A-type socket (3), and the DC-DC voltage conversion circuit (22) outputs 5V direct-current power through the 5V direct-current power output end, the 5V power output sockets (4) and the USB A-type socket (3);
the 12V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with each 12V power output socket (5), and the DC-DC voltage conversion circuit (22) outputs 12V direct-current power through the 12V direct-current power output end and each 12V power output socket (5);
the 4.2V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with each mobile phone power output socket (6), and the DC-DC voltage conversion circuit (22) outputs 4.2V direct-current power through the 4.2V direct-current power output end and each mobile phone power output socket (6);
the 8.4V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with each camera power output socket (7), and the DC-DC voltage conversion circuit (22) outputs 8.4V direct-current power through the 8.4V direct-current power output end and each camera power output socket (7);
the computer power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with the computer power output socket (9), and the DC-DC voltage conversion circuit (22) outputs power required by the computer through the computer power output end and the computer power output socket (9).
With continuing reference to fig. 2 and 3, the battery chamber (102) shown in fig. 2 and 3 is provided with conductive terminals for connecting the batteries (11) in the battery chamber (102) in series, and a set of output terminals for outputting the power of the batteries (11) after being connected in series, and the input interface of the charging circuit (21) is electrically connected with the power input socket (2), the output interface of the charging circuit (21) is electrically connected with the output terminal of the battery chamber (102), and the charging circuit (21) charges the batteries (11) in the battery chamber (102) by the power input from the power input socket (2) through the charging circuit (21).
With continuing reference to fig. 3, the USB hub circuit (23) shown in fig. 3 is provided with a USB upstream interface and a plurality of USB downstream interfaces, the USB upstream interface is electrically connected to the USB Mini-B type socket (8), each USB downstream interface is electrically connected to the positive data terminal and the negative data terminal of each USB a type socket (3), respectively, and the USB hub circuit (23) is mainly used to expand one USB interface connected to the USB Mini-B type socket (8) into a plurality of USB interfaces to each USB a type socket (3).
The utility model discloses a battery (11) that power supply unit used can be disposable battery or rechargeable battery, when using rechargeable battery type battery (11), as long as input suitable DC power supply at power input socket (2), power supply unit will charge each battery (11) in battery room (102) through charging circuit (21), until the completion of charging. After the charging is finished, the power supply device can convert the electric power output by each battery (11) into a plurality of direct current power supplies with different voltages through the DC-DC voltage conversion circuit (22) and output the direct current power supplies to each USB A-type socket (3), each 5V power supply output socket (4), each 12V power supply output socket (5), each mobile phone power supply output socket (6), each camera power supply output socket (7) and the computer power supply output socket (9). For convenience of description, the power supply described in this specification is a direct-current power supply except for an alternating-current power supply.
Referring to fig. 4 and 5, fig. 4 is a three-dimensional schematic illustration of a power supply device according to a second embodiment of the present invention, fig. 5 is a three-dimensional schematic illustration of a power supply device according to a second embodiment of the present invention when a battery cover is opened, the second embodiment shown in fig. 4 and 5 is different from the first embodiment mainly in that a battery chamber (102) and a battery (11) are disposed and a 24V power output socket (12) is added to the second embodiment, the power supply device according to the first embodiment is provided with a battery chamber (102) capable of accommodating sixteen batteries (11), the power supply device according to the second embodiment is provided with two battery chambers (102) capable of accommodating eight batteries (11), and the two battery chambers (102) capable of accommodating eight batteries (11) and the total of sixteen batteries (11). However, the number of the battery chambers (102) and the number of the batteries (11) are not intended to limit the protection scope of the present invention, and the objects of the present invention can be well achieved by adopting the first embodiment or the second embodiment, or adopting other numbers of battery chambers (102), or adopting other numbers of batteries (11), and all belong to the protection scope of the present invention.
With continued reference to fig. 4 and 5, the housing (1) of the power supply apparatus shown in fig. 4 and 5 is further provided with one or more 24V power outlet sockets (12). And the DC-DC voltage conversion circuit (22) of the power supply device shown in the figure is also provided with a group of 24V direct-current power supply output ends, the 24V direct-current power supply output ends are in circuit connection with the 24V power supply output sockets (12), and the DC-DC voltage conversion circuit (22) outputs 24V direct-current power supply through the 24V direct-current power supply output ends and the 24V power supply output sockets (12). The utility model discloses a second embodiment has increased 24V DC power supply, can supply computer peripheral equipment such as some printers, scanners to use. In addition, the power supply device of the second embodiment has a strip-shaped configuration, and when in use, the power supply device of the second embodiment can be placed at the bottom of the rear of the notebook computer to raise the rear of the notebook computer, which is particularly beneficial to heat dissipation of the notebook computer.
Referring to fig. 6, fig. 6 is a three-dimensional schematic illustration of the power supply device according to the third embodiment of the present invention, wherein the housing (1) of the power supply device shown in fig. 6 is further provided with a magnetic power input socket (13), a magnetic power output socket (14), a T-Flash memory card slot (15), a SD/MMC memory card slot (16), and a MS memory card slot (17), and the housing (1) of the power supply device is further provided with a USB memory card controller, wherein the USB memory card controller is electrically connected to one of the USB downstream interfaces of the USB hub circuit (23) and is provided with a plurality of different memory card interface circuits, including a T-Flash memory card interface circuit, an SD/MMC memory card interface circuit, and an MS memory card interface circuit, and the T-Flash memory card interface circuit is electrically connected to the T-Flash memory card slot (15), the SD/MMC memory card interface circuit is connected with the SD/MMC memory card slot (16) phase circuit, the MS memory card interface circuit is connected with the MS memory card slot (17) phase circuit, the USB memory card controller is mainly used for connecting a memory card connected with the T-Flash memory card slot (15), the SD/MMC memory card slot (16) and the MS memory card slot (17) with a computer through a USB hub circuit (23), the T-Flash memory card slot (15), the SD/MMC memory card slot (16) and the MS memory card slot (17) for the computer to read and write the memory card.
With reference to fig. 6, the main difference between the third embodiment shown in fig. 6 and the second embodiment is that the third embodiment adds a magnetic power input socket (13), a magnetic power output socket (14) and a memory card reader function, where the magnetic power input socket (13) and the magnetic power output socket (14) are the plug and the socket for transmitting power between the notebook computer produced by apple computer company and the power supply, and the plug and the socket are different from those used in notebook computers of other brands, and are a plug and a socket with magnetic force, and the plug and the socket are kept in a plug-in state by the magnetic force. In the third embodiment, the T-Flash Memory Card slot (15) is a Transflash Memory Card slot, the SD/MMC Memory Card slot (16) is a Secure Digital Card/Multi Media Card slot, and the MS Memory Card slot (17) is a Memory Stick Memory Card slot.
With reference to fig. 7 to 9, fig. 7 is a three-dimensional schematic illustration of a power supply device according to a fourth embodiment of the present invention, fig. 8 is a three-dimensional schematic illustration of a power supply device according to a fifth embodiment of the present invention, fig. 9 is a three-dimensional schematic illustration of a power supply device according to a sixth embodiment of the present invention, and the fourth to sixth embodiments of fig. 7 to 9 are different from the third embodiment in the shape of a battery chamber (102), the power supply device according to the third embodiment has two battery chambers (102), each of which can hold 8 batteries (11); the power supply device of the fourth embodiment is provided with a battery chamber (102), the batteries are arranged in two rows in the battery chamber (102), each row is provided with 8 batteries (11), and 16 batteries (11) can be accommodated together; the power supply device of the fifth embodiment is provided with a battery chamber (102), batteries are arranged in the battery chamber (102) in three rows, each row of the first row and the second row is provided with 6 batteries (11), the third row is provided with 4 batteries (11), and the battery chamber can accommodate 16 batteries (11); the power supply device of the sixth embodiment is provided with a battery chamber (102), the batteries are arranged in the battery chamber (102) in four rows, each row is provided with 4 batteries (11), and 16 batteries (11) can be accommodated together; the number and the mode of the battery chamber (102) that can place the battery (11) of the above embodiments are not limited to the protection scope of the present invention, and the objects of the present invention can be well achieved no matter which embodiment is adopted from the first embodiment to the sixth embodiment, and all belong to the protection scope of the present invention.
The utility model discloses a power supply device is particularly suitable for some and often goes out work or go on business and carry the people of notebook computer, as long as it is full of the electricity with rechargeable battery (11) in advance, perhaps uses disposable battery (11), just can be outdoor or do not have the place of alternating current power supply, supplies power simultaneously to equipment such as notebook computer, cell-phone, bluetooth earphone, MP3, digital camera.

Claims (9)

1. A power supply device is characterized by comprising a power input socket (2), one to a plurality of USB A-type sockets (3), one to a plurality of 5V power output sockets (4), one to a plurality of 12V power output sockets (5), one to a plurality of mobile phone power output sockets (6), one to a plurality of camera power output sockets (7), a USB Mini-B type socket (8), a computer power output socket (9), a charging circuit (21), a DC-DC voltage conversion circuit (22) and a USB hub circuit (23), wherein the shell (1) is provided with a battery cover (101) and a battery chamber (102) for accommodating batteries (11), and the power supply device charges the batteries (11) in the battery chamber (102) by the power input from the power input socket (2) through the charging circuit (21) And the power supply device converts the power output by each battery (11) in the battery chamber (102) into a plurality of power supplies with different voltages through a DC-DC voltage conversion circuit (22) and outputs the power to each USB A-type socket (3), each 5V power output socket (4), each 12V power output socket (5), each mobile phone power output socket (6), each camera power output socket (7) and a computer power output socket (9), and the power supply device expands one USB interface connected with the USB Mini-B type socket (8) into a plurality of USB interfaces to each USB A-type socket (3) through a USB hub circuit (23).
2. The power supply device according to claim 1, wherein the battery chamber (102) is provided with conductive terminals for connecting the batteries (11) in the battery chamber (102) in series, and a set of output terminals for outputting the power of the batteries (11) connected in series, and wherein the input interface of the charging circuit (21) is electrically connected to the power input socket (2), the output interface of the charging circuit (21) is electrically connected to the output terminals of the battery chamber (102), and the charging circuit (21) charges the batteries (11) in the battery chamber (102) with the power input from the power input socket (2) through the charging circuit (21).
3. The power supply apparatus according to claim 1, wherein the DC-DC voltage converting circuit (22) has a set of input terminals and five sets of DC power output terminals, the five sets of DC power output terminals include 12V DC power output terminal, 5V DC power output terminal, 8.4V DC power output terminal, 4.2V DC power output terminal, and computer power output terminal, the DC-DC voltage converting circuit (22) converts the power input from the input terminals into five DC power supplies of different voltages, including 12V DC power supply, 5V DC power supply, 8.4V DC power supply, 4.2V DC power supply, and computer power supply, and outputs the DC power supplies to the respective sockets through the output terminals corresponding to the voltages,
wherein,
the input end of the DC-DC voltage conversion circuit (22) is connected with the output terminal of the battery chamber (102) in a circuit mode, and the DC-DC voltage conversion circuit (22) inputs power from the output terminal of the battery chamber (102);
the 5V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with the 5V power output sockets (4) and the power supply terminal and the grounding terminal of the USB A-type socket (3), and the DC-DC voltage conversion circuit (22) outputs 5V direct-current power through the 5V direct-current power output end, the 5V power output sockets (4) and the USB A-type socket (3);
the 12V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with each 12V power output socket (5), and the DC-DC voltage conversion circuit (22) outputs 12V direct-current power through the 12V direct-current power output end and each 12V power output socket (5);
the 4.2V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with each mobile phone power output socket (6), and the DC-DC voltage conversion circuit (22) outputs 4.2V direct-current power through the 4.2V direct-current power output end and each mobile phone power output socket (6);
the 8.4V direct-current power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with each camera power output socket (7), and the DC-DC voltage conversion circuit (22) outputs 8.4V direct-current power through the 8.4V direct-current power output end and each camera power output socket (7);
the computer power output end of the DC-DC voltage conversion circuit (22) is in circuit connection with the computer power output socket (9), and the DC-DC voltage conversion circuit (22) outputs power required by the computer through the computer power output end and the computer power output socket (9).
4. The power supply device according to claim 1, wherein the USB hub circuit (23) has a USB upstream interface and a plurality of USB downstream interfaces, the USB upstream interface is electrically connected to the USB Mini-B type socket (8), each USB downstream interface is electrically connected to the positive data terminal and the negative data terminal of each USB a type socket (3), and the USB hub circuit (23) is mainly used to expand the USB interface connected to the USB Mini-B type socket (8) into a plurality of USB interfaces to each USB a type socket (3).
5. The power supply apparatus using battery as claimed in claim 1, wherein the housing (1) of the power supply apparatus is further provided with one or more 24V power output sockets (12).
6. The power supply device according to claim 3, wherein the DC-DC voltage conversion circuit (22) further comprises a set of 24V DC power output terminals, the 24V DC power output terminals are electrically connected to the respective 24V power output sockets (12), and the DC-DC voltage conversion circuit (22) outputs 24V DC power through the 24V DC power output terminals and the respective 24V power output sockets (12).
7. The power supply device using battery as claimed in claim 1, wherein the housing (1) of the power supply device is further provided with a magnetic power input socket (13), a magnetic power output socket (14), a T-Flash memory card slot (15), an SD/MMC memory card slot (16), and an MS memory card slot (17), and the housing (1) of the power supply device is further provided with a USB memory card controller, wherein the USB memory card controller is electrically connected with one of the USB downstream interfaces of the USB hub circuit (23), and is provided with a plurality of different memory card interface circuits including a T-Flash memory card interface circuit, an SD/MMC memory card interface circuit, an MS memory card interface circuit, and a T-Flash memory card interface circuit is electrically connected with the T-Flash memory card slot (15), the SD/MMC memory card interface circuit is connected with the SD/MMC memory card slot (16) phase circuit, the MS memory card interface circuit is connected with the MS memory card slot (17) phase circuit, the USB memory card controller is mainly used for connecting a memory card connected with the T-Flash memory card slot (15), the SD/MMC memory card slot (16) and the MS memory card slot (17) with a computer through a USB hub circuit (23), the T-Flash memory card slot (15), the SD/MMC memory card slot (16) and the MS memory card slot (17) for the computer to read and write the memory card.
8. The power supply device according to any one of claims 1 to 7, wherein the power supply device is provided with a battery chamber (102) for accommodating sixteen batteries (11).
9. The power supply device according to any one of claims 1 to 7, wherein the power supply device is provided with two battery chambers (102) for accommodating eight batteries (11).
CNU2008201465025U 2008-08-08 2008-08-08 Power supply device of multifunctional notebook computer adopting battery Expired - Fee Related CN201251756Y (en)

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CNU2008201465025U CN201251756Y (en) 2008-08-08 2008-08-08 Power supply device of multifunctional notebook computer adopting battery

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CNU2008201465025U CN201251756Y (en) 2008-08-08 2008-08-08 Power supply device of multifunctional notebook computer adopting battery

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CN201251756Y true CN201251756Y (en) 2009-06-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106339037A (en) * 2016-08-30 2017-01-18 南京巨鲨显示科技有限公司 Display device with multi-channel switching USB (Universal Serial Bus) hub
CN106372018A (en) * 2016-11-11 2017-02-01 深圳市威尔德医疗电子有限公司 Multifunctional interface board for ultrasonic diagnosis device
CN114204620A (en) * 2021-11-01 2022-03-18 山东信通电子股份有限公司 Power supply system suitable for multiple power supply modes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106339037A (en) * 2016-08-30 2017-01-18 南京巨鲨显示科技有限公司 Display device with multi-channel switching USB (Universal Serial Bus) hub
CN106372018A (en) * 2016-11-11 2017-02-01 深圳市威尔德医疗电子有限公司 Multifunctional interface board for ultrasonic diagnosis device
CN114204620A (en) * 2021-11-01 2022-03-18 山东信通电子股份有限公司 Power supply system suitable for multiple power supply modes

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