CN204304532U - A kind of computer and the feed circuit based on its USB interface - Google Patents
A kind of computer and the feed circuit based on its USB interface Download PDFInfo
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- CN204304532U CN204304532U CN201420845909.2U CN201420845909U CN204304532U CN 204304532 U CN204304532 U CN 204304532U CN 201420845909 U CN201420845909 U CN 201420845909U CN 204304532 U CN204304532 U CN 204304532U
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Abstract
The utility model is applicable to charging circuit design field, provides a kind of computer and the feed circuit based on its USB interface.The circuit of these feed circuit to be built in computer and to be connected with computer USB interface, this circuit by or the level state of door comprehensive power signal and signalization, switching signal generative circuit is made to drive commutation circuit action, and can under shut down of computer, dormancy and sleep state ,+5V signal voltage the 5VSB switching to computer ATX power supply powers to USB interface.+ 5V signal voltage 5VSB due to ATX power supply exists all the time and has nothing to do with computer running status, therefore ensure that computer is under shutdown, dormancy and sleep state, still by the powered battery of USB interface to connected handheld terminal.Owing to being adopt computer USB interface to powered battery, without the need to using existing charger or charger baby, thus without the need to taking up room or socket, and can not limit by dump energy, application scenario is wider.
Description
Technical field
The utility model belongs to charging circuit design field, particularly relates to a kind of computer and the feed circuit based on its USB interface.
Background technology
Well known, all kinds ofly make battery-powered handheld terminal, as mobile phone, panel computer etc., its battery electric quantity is limited, charger or charger baby need be utilized to charge to battery when electricity is not enough.
But use charger or charger baby charging to there is certain drawback, show: one, the charging head of charger or charger baby takes up room comparatively large, particularly when more battery charges together, take up room large and to take socket position more; Two, the electricity due to charger baby storage is limited, and thus application scenario is limited, and such as, when user goes out, charger baby may cannot reach charging requirement because self electric quantity is not enough.
Utility model content
The purpose of this utility model is to provide a kind of feed circuit based on computer USB interface, when being intended to solve the battery charging to handheld terminal of existing employing charger or charger baby, exist take up room large, the problem that application scenario is limited.
The utility model is achieved in that a kind of feed circuit based on computer USB interface, and described feed circuit are built in computer, comprising:
Or door, first input end that is described or door connects power supply signal, and the second input end that is described or door connects signalization;
Switching signal generative circuit, the first input end of described switching signal generative circuit connects output terminal that is described or door, second input end of described switching signal generative circuit connects the+12V signal voltage of ATX power supply, described switching signal generative circuit under shut down of computer, dormancy and sleep state through output terminal output low level;
Commutation circuit, the first input end of described commutation circuit connects the output terminal of described switching signal generative circuit, second input end of described commutation circuit connects the+5V signal voltage 5VSB of described ATX power supply, 3rd input end of described commutation circuit connects the voltage signal exported by ATX power supply, the output terminal of described commutation circuit connects the power pins of computer USB interface, the low level that described commutation circuit exports according to the described switching signal generative circuit and+5V signal voltage that switches to ATX power supply is powered to the power pins of described computer USB interface.
Wherein, described switching signal generative circuit can comprise: the first resistance R1, the second resistance R2, the 3rd resistance R3, the first switching tube Q1, second switch pipe Q2, the first electric capacity C1, high-end+5V the signal voltage being connected described ATX power supply by described first resistance R1 of described first switching tube Q1, the low side ground connection of described first switching tube Q1, the drive end of described first switching tube Q1 is as the first input end of described switching signal generative circuit, the first end of the described second resistance R2 of high-end connection of described second switch pipe Q2, the low side ground connection of described second switch pipe Q2, the drive end of described second switch pipe Q2 connects the high-end of described first switching tube Q1, described 3rd resistance R3 and described first electric capacity C1 is connected between the high-end and ground of described second switch pipe Q2, second end of described second resistance R2 is as the second input end of described switching signal generative circuit, the high-end output terminal as described switching signal generative circuit of described second switch pipe Q2.
Now, described first switching tube Q1 and/or described second switch pipe Q2 can be the metal-oxide-semiconductor of N-type, high-end as described first switching tube Q1 and/or described second switch pipe Q2 of the collector of described metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor is as the low side of described first switching tube Q1 and/or described second switch pipe Q2, and the grid of described metal-oxide-semiconductor is as the drive end of described first switching tube Q1 and/or described second switch pipe Q2.
Wherein, described commutation circuit can comprise: at least one the 3rd switching tube, when comprising two or more 3rd switching tube, described two or more 3rd switching tube is parallel with one another, high-end second input end as described commutation circuit of described 3rd switching tube, the low side of described 3rd switching tube is as the output terminal of described commutation circuit, and the drive end of described 3rd switching tube is as the first input end of described commutation circuit; At least one the 4th switching tube, when comprising two or more 4th switching tube, described two or more 4th switching tube is parallel with one another, high-end the 3rd input end as described commutation circuit of described 4th switching tube, the low side of described 4th switching tube is as the output terminal of described commutation circuit, and the drive end of described 4th switching tube is as the first input end of described commutation circuit.
Now, described 3rd switching tube can be the metal-oxide-semiconductor of P type, and the collector of described metal-oxide-semiconductor is as the low side of described 3rd switching tube, and high-end as described 3rd switching tube of the source electrode of described metal-oxide-semiconductor, the grid of described metal-oxide-semiconductor is as the drive end of described 3rd switching tube.
Now, described 4th switching tube can be the metal-oxide-semiconductor of N-type, high-end as described 4th switching tube of the collector of described metal-oxide-semiconductor, and the source electrode of described metal-oxide-semiconductor is as the low side of described 4th switching tube, and the grid of described metal-oxide-semiconductor is as the drive end of described 4th switching tube.
Now, described commutation circuit can comprise two the 3rd switching tubes and three the 4th switching tubes.
Further, described feed circuit also can comprise: be connected to the output filter circuit between the output terminal of described commutation circuit and ground.
Wherein, described output filter circuit can comprise: be connected to the second electric capacity C2 between the output terminal of described commutation circuit and ground and the 3rd electric capacity C3.
Another object of the present utility model is to provide a kind of computer, comprise USB interface, described computer also comprises the feed circuit based on computer USB interface of the described USB interface of a connection, and the described feed circuit based on computer USB interface are as above based on the feed circuit of computer USB interface.
The circuit of the feed circuit based on computer USB interface that the utility model proposes to be built in computer and to be connected with computer USB interface, this circuit by or the level state of door comprehensive power signal ATXPOWER_OK_BMC and signalization 5VDUAL_SW, switching signal generative circuit is made to drive commutation circuit action, and can under shut down of computer, dormancy and sleep state ,+5V signal voltage the 5VSB switching to computer ATX power supply powers to USB interface.+ 5V signal voltage 5VSB due to ATX power supply exists all the time and has nothing to do with computer running status, therefore ensure that computer is under shutdown, dormancy and sleep state, still by the powered battery of USB interface to connected handheld terminal.Owing to being adopt computer USB interface to powered battery, without the need to using existing charger or charger baby, thus without the need to taking up room or socket, and can not limit by dump energy, application scenario is wider.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the feed circuit based on computer USB interface that the utility model embodiment provides;
Fig. 2 is the circuit diagram of Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
For prior art Problems existing, the utility model provides a kind of circuit of the feed circuit based on computer USB interface, this circuit to be built in computer and to be connected with computer USB interface, this circuit by or the level state of door comprehensive power signal ATXPOWER_OK_BMC and signalization 5VDUAL_SW, switching signal generative circuit is made to drive commutation circuit action, and can under shut down of computer, dormancy and sleep state ,+5V signal voltage the 5VSB switching to computer ATX power supply powers to USB interface.
Fig. 1 shows the circuit theory of the feed circuit based on computer USB interface that the utility model embodiment provides, and for convenience of explanation, illustrate only the part relevant to the utility model.
The feed circuit based on computer USB interface that the utility model embodiment provides are built in computer, comprise: or door U1, or the first input end of door U1 connects power supply signal ATXPOWER_OK_BMC, or second input end of door U1 connects signalization 5VDUAL_SW, switching signal generative circuit 11, the first input end connection of switching signal generative circuit 11 or the output terminal of door U1, second input end of switching signal generative circuit 11 connects the+12V signal voltage ATX12V of ATX power supply, switching signal generative circuit 11 through output terminal output low level, and exports+12V signal voltage the ATX12V of ATX power supply under shut down of computer, dormancy and sleep state under booting computer state through output terminal, commutation circuit 12, the first input end of commutation circuit 12 connects the output terminal of switching signal generative circuit 11, second input end of commutation circuit 12 connects the+5V signal voltage 5VSB of ATX power supply, 3rd input end of commutation circuit 12 connects the voltage signal VDD5 exported by ATX power supply, the output terminal of commutation circuit 12 connects the power pins of computer USB interface, the low level that commutation circuit 12 exports according to switching signal generative circuit 11 and the+5V signal voltage 5VSB switching to ATX power supply power to the power pins of USB interface, and+12V signal voltage the ATX12V of the ATX power supply exported according to switching signal generative circuit 11 and switch to voltage signal VDD5 and power to the power pins of USB interface.
Wherein, the state S5 of all devices Close All in shut down of computer state and computer, computer dormant state and computer suspending play hard disk (Suspend To Disk, STD) state S4, computer sleep state and computer suspending play internal memory (Suspend To RAM, STR) state S3, booting computer state and computer normal operating conditions S0.
Wherein, power supply signal ATXPOWER_OK_BMC is booting computer signal.Voltage signal VDD5 is the voltage signal directly exported by ATX power supply.Signalization 5VDUAL_SW is connected to the GPIO interface of South Bridge chip on computer main board, be high level or low level, and this GPIO interface is by Standby (standby) Power supply by this GPIO Interface Controller signalization 5VDUAL_SW.+ 12V signal voltage the ATX12V of ATX power supply only exists under computer S0 state.+ 5V signal voltage the 5VSB of ATX power supply is standby (Stand-by) voltage of computer, that is to say, as long as namely the ATX power plug power source line of computer exists, whether is in open state or off-mode has nothing to do with computer.
In addition, in order to realize output filtering function, also should comprise based on the feed circuit of computer USB interface: be connected to the output filter circuit 13 between the output terminal of commutation circuit 12 and ground.
Further, as shown in Figure 2, switching signal generative circuit 11 can comprise: the first resistance R1, the second resistance R2, the 3rd resistance R3, the first switching tube Q1, second switch pipe Q2, the first electric capacity C1.Wherein, high-end+5V signal voltage the 5VSB passing through the first resistance R1 and connect ATX power supply of the first switching tube Q1, the low side ground connection of the first switching tube Q1, the drive end of the first switching tube Q1 as switching signal generative circuit 11 first input end and connect or the output terminal of door U1; The first end of the high-end connection second resistance R2 of second switch pipe Q2, the low side ground connection of second switch pipe Q2, the drive end of second switch pipe Q2 connects the high-end of the first switching tube Q1; 3rd resistance R3 and the first electric capacity C1 is connected between the high-end and ground of second switch pipe Q2; Second end of the second resistance R2 as switching signal generative circuit 11 the second input end and connect+12V signal voltage the ATX12V of ATX power supply, the high-end output terminal as switching signal generative circuit 11 of second switch pipe Q2 and connect the first input end of commutation circuit 12.
Preferably, first switching tube Q1 and/or second switch pipe Q2 is the metal-oxide-semiconductor of N-type, high-end as the first switching tube Q1 and/or second switch pipe Q2 of the collector of metal-oxide-semiconductor, the source electrode of metal-oxide-semiconductor is as the low side of the first switching tube Q1 and/or second switch pipe Q2, and the grid of metal-oxide-semiconductor is as the drive end of the first switching tube Q1 and/or second switch pipe Q2.
Further, as shown in Figure 2, commutation circuit 12 can comprise: at least one the 3rd switching tube Q41 to Q4n, when comprising two or more 3rd switching tube, this two or more 3rd switching tube is parallel with one another, namely the drive end of this two or more 3rd switching tube is interconnected, high-endly to be interconnected, low side is interconnected, high-end second input end as commutation circuit 12 of the 3rd switching tube the and connect+5V signal voltage 5VSB of ATX power supply, the low side of the 3rd switching tube as commutation circuit 12 output terminal and connect the power pins of computer USB interface, the drive end of the 3rd switching tube as commutation circuit 12 first input end and connect the output terminal of switching signal generative circuit 11, at least one the 4th switching tube Q31 to Q3n, when comprising two or more 4th switching tube, this two or more 4th switching tube is parallel with one another, namely the drive end of this two or more 4th switching tube is interconnected, high-endly to be interconnected, low side is interconnected, high-end the 3rd input end as commutation circuit 12 of the 4th switching tube and connect voltage signal VDD5, the low side of the 4th switching tube as commutation circuit 12 output terminal and connect the power pins of computer USB interface, the drive end of the 4th switching tube as commutation circuit 12 first input end and connect the output terminal of switching signal generative circuit 11.
Preferably, the 3rd switching tube is the metal-oxide-semiconductor of P type, and the collector of metal-oxide-semiconductor is as the low side of the 3rd switching tube, and high-end as the 3rd switching tube of the source electrode of metal-oxide-semiconductor, the grid of metal-oxide-semiconductor is as the drive end of the 3rd switching tube.
Preferably, the 4th switching tube is the metal-oxide-semiconductor of N-type, high-end as the 4th switching tube of the collector of metal-oxide-semiconductor, and the source electrode of metal-oxide-semiconductor is as the low side of the 4th switching tube, and the grid of metal-oxide-semiconductor is as the drive end of the 4th switching tube.
Preferably, commutation circuit 12 comprises two the 3rd switching tubes and three the 4th switching tubes.The object arranging multiple 3rd switching tube and/or the 4th switching tube can provide enough electric currents in order to ensure when load is larger.
Further, as shown in Figure 2, output filter circuit 13 can comprise: be connected to the second electric capacity C2 between the output terminal of commutation circuit 12 and ground and the 3rd electric capacity C3.
Below describe the principle of work of the circuit shown in Fig. 2 in detail:
First, user, under open state, arranging switch interface being selected whether to provide with the USB interface that should be connected based on the feed circuit of computer USB interface power supply, can be, selecting out, then computer switch to shutdown, dormancy and sleep state time, signalization 5VDUAL_SW is dragged down; Otherwise select close, then computer switch to shutdown, dormancy and sleep state time, signalization 5VDUAL_SW is drawn high.
Afterwards, if booting computer enters S0 state, in power supply signal ATXPOWER_OK_BMC and signalization 5VDUAL_SW, arbitrary signal is high level, through or door U1 after export as high level, this high level makes the first switching tube Q1 conducting, thus having dragged down the drive end of second switch pipe Q2, second switch pipe Q2 ends, and switching signal generative circuit 11 exports the+12V signal voltage ATX12V of ATX power supply to commutation circuit 12.Should the 3rd switching tube be ended and the 4th switching tube conducting+12V signal voltage ATX12V, now, the output terminal of commutation circuit 12 comes from voltage signal VDD5 to the voltage that computer USB interface provides, therefore, USB interface has electricity, can to the powered battery of connected handheld terminal.
If computer enters S5, S4 or S3 state, and provide power supply with this USB interface be connected based on the feed circuit of computer USB interface arranging interface have selected, then power supply signal ATXPOWER_OK_BMC is low level, and signalization 5VDUAL_SW is low level.Through or door U1 after export as low level, this low level makes the first switching tube Q1 end, the drive end voltage of second switch pipe Q2 is determined by+5V signal voltage the 5VSB of ATX power supply, and make second switch pipe Q2 conducting, switching signal generative circuit 11 is to commutation circuit 12 output low level.This low level makes the 3rd switching tube conducting and the 4th switching tube ends, now, the output terminal of commutation circuit 12 comes from the+5V signal voltage 5VSB of ATX power supply to the voltage that computer USB interface provides, + 5V signal voltage 5VSB due to ATX power supply exists all the time and has nothing to do with computer current state, thus USB interface has electricity, can to the powered battery of connected handheld terminal.
If computer enters S5, S4 or S3 state, and do not provide power supply with this USB interface be connected based on the feed circuit of computer USB interface arranging interface have selected, then power supply signal ATXPOWER_OK_BMC is low level, and signalization 5VDUAL_SW is high level.Through or door U1 after export as high level, this high level makes the first switching tube Q1 conducting, thus having dragged down the drive end of second switch pipe Q2, second switch pipe Q2 ends, and switching signal generative circuit 11 exports the+12V signal voltage ATX12V of ATX power supply to commutation circuit 12.Should the 3rd switching tube be ended and the 4th switching tube conducting+12V signal voltage ATX12V, now, the output terminal of commutation circuit 12 comes from voltage signal VDD5 to the voltage that computer USB interface provides, and due to now voltage signal VDD5 be zero, therefore, USB interface does not have electricity, can not to the powered battery of connected handheld terminal.
The utility model embodiment still provides a kind of computer, comprises USB interface, also comprises the feed circuit based on computer USB interface be connected with this USB interface, should based on the feed circuit of computer USB interface as previously mentioned, not repeat.
In sum, the circuit of the feed circuit based on computer USB interface that the utility model proposes to be built in computer and to be connected with computer USB interface, this circuit by or the level state of door comprehensive power signal ATXPOWER_OK_BMC and signalization 5VDUAL_SW, switching signal generative circuit is made to drive commutation circuit action, and can under shut down of computer, dormancy and sleep state ,+5V signal voltage the 5VSB switching to computer ATX power supply powers to USB interface.+ 5V signal voltage 5VSB due to ATX power supply exists all the time and has nothing to do with computer running status, therefore ensure that computer is under shutdown, dormancy and sleep state, still by the powered battery of USB interface to connected handheld terminal.Owing to being adopt computer USB interface to powered battery, without the need to using existing charger or charger baby, thus without the need to taking up room or socket, and can not limit by dump energy, application scenario is wider.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. based on feed circuit for computer USB interface, it is characterized in that, described feed circuit are built in computer, comprising:
Or door, first input end that is described or door connects power supply signal, and the second input end that is described or door connects signalization;
Switching signal generative circuit, the first input end of described switching signal generative circuit connects output terminal that is described or door, second input end of described switching signal generative circuit connects the+12V signal voltage of ATX power supply, described switching signal generative circuit under shut down of computer, dormancy and sleep state through output terminal output low level;
Commutation circuit, the first input end of described commutation circuit connects the output terminal of described switching signal generative circuit, second input end of described commutation circuit connects the+5V signal voltage 5VSB of described ATX power supply, 3rd input end of described commutation circuit connects the voltage signal exported by ATX power supply, the output terminal of described commutation circuit connects the power pins of computer USB interface, the low level that described commutation circuit exports according to the described switching signal generative circuit and+5V signal voltage that switches to ATX power supply is powered to the power pins of described computer USB interface.
2., as claimed in claim 1 based on the feed circuit of computer USB interface, it is characterized in that, described switching signal generative circuit comprises: the first resistance R1, the second resistance R2, the 3rd resistance R3, the first switching tube Q1, second switch pipe Q2, the first electric capacity C1;
High-end+5V the signal voltage being connected described ATX power supply by described first resistance R1 of described first switching tube Q1, the low side ground connection of described first switching tube Q1, the drive end of described first switching tube Q1 is as the first input end of described switching signal generative circuit, the first end of the described second resistance R2 of high-end connection of described second switch pipe Q2, the low side ground connection of described second switch pipe Q2, the drive end of described second switch pipe Q2 connects the high-end of described first switching tube Q1, described 3rd resistance R3 and described first electric capacity C1 is connected between the high-end and ground of described second switch pipe Q2, second end of described second resistance R2 is as the second input end of described switching signal generative circuit, the high-end output terminal as described switching signal generative circuit of described second switch pipe Q2.
3. as claimed in claim 2 based on the feed circuit of computer USB interface, it is characterized in that, described first switching tube Q1 and/or described second switch pipe Q2 is the metal-oxide-semiconductor of N-type, high-end as described first switching tube Q1 and/or described second switch pipe Q2 of the collector of described metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor is as the low side of described first switching tube Q1 and/or described second switch pipe Q2, and the grid of described metal-oxide-semiconductor is as the drive end of described first switching tube Q1 and/or described second switch pipe Q2.
4., as claimed in claim 1 based on the feed circuit of computer USB interface, it is characterized in that, described commutation circuit comprises:
At least one the 3rd switching tube, when comprising two or more 3rd switching tube, described two or more 3rd switching tube is parallel with one another, high-end second input end as described commutation circuit of described 3rd switching tube, the low side of described 3rd switching tube is as the output terminal of described commutation circuit, and the drive end of described 3rd switching tube is as the first input end of described commutation circuit;
At least one the 4th switching tube, when comprising two or more 4th switching tube, described two or more 4th switching tube is parallel with one another, high-end the 3rd input end as described commutation circuit of described 4th switching tube, the low side of described 4th switching tube is as the output terminal of described commutation circuit, and the drive end of described 4th switching tube is as the first input end of described commutation circuit.
5. as claimed in claim 4 based on the feed circuit of computer USB interface, it is characterized in that, described 3rd switching tube is the metal-oxide-semiconductor of P type, the collector of described metal-oxide-semiconductor is as the low side of described 3rd switching tube, high-end as described 3rd switching tube of the source electrode of described metal-oxide-semiconductor, the grid of described metal-oxide-semiconductor is as the drive end of described 3rd switching tube.
6. as claimed in claim 4 based on the feed circuit of computer USB interface, it is characterized in that, described 4th switching tube is the metal-oxide-semiconductor of N-type, high-end as described 4th switching tube of the collector of described metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor is as the low side of described 4th switching tube, and the grid of described metal-oxide-semiconductor is as the drive end of described 4th switching tube.
7., as claimed in claim 4 based on the feed circuit of computer USB interface, it is characterized in that, described commutation circuit comprises two the 3rd switching tubes and three the 4th switching tubes.
8., as claimed in claim 1 based on the feed circuit of computer USB interface, it is characterized in that, described feed circuit also comprise:
Be connected to the output filter circuit between the output terminal of described commutation circuit and ground.
9., as claimed in claim 8 based on the feed circuit of computer USB interface, it is characterized in that, described output filter circuit comprises:
Be connected to the second electric capacity C2 between the output terminal of described commutation circuit and ground and the 3rd electric capacity C3.
10. a computer, comprise USB interface, it is characterized in that, described computer also comprises the feed circuit based on computer USB interface of the described USB interface of a connection, and the described feed circuit based on computer USB interface are the feed circuit based on computer USB interface as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845909.2U CN204304532U (en) | 2014-12-25 | 2014-12-25 | A kind of computer and the feed circuit based on its USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845909.2U CN204304532U (en) | 2014-12-25 | 2014-12-25 | A kind of computer and the feed circuit based on its USB interface |
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| CN204304532U true CN204304532U (en) | 2015-04-29 |
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| CN201420845909.2U Active CN204304532U (en) | 2014-12-25 | 2014-12-25 | A kind of computer and the feed circuit based on its USB interface |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166265A1 (en) * | 2016-04-01 | 2017-10-05 | Intel Corporation | Reducing idle-time energy consumption in universal serial bus power delivery circuitry of power adapters |
| CN109375758A (en) * | 2018-12-14 | 2019-02-22 | 佛山市伙伴联扬电子有限公司 | A kind of charging unit of host computer configuration |
| CN109782885A (en) * | 2019-01-08 | 2019-05-21 | 佛山市伙伴联扬电子有限公司 | A kind of power supply and switching device of automatic sensing control lamp effect |
| CN109871113A (en) * | 2019-02-03 | 2019-06-11 | 广州视源电子科技股份有限公司 | Power output control method, device, plate, processor, system and medium |
| US10319894B2 (en) | 2015-05-15 | 2019-06-11 | Boe Technology Group Co., Ltd. | Wearable electronic device |
-
2014
- 2014-12-25 CN CN201420845909.2U patent/CN204304532U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10319894B2 (en) | 2015-05-15 | 2019-06-11 | Boe Technology Group Co., Ltd. | Wearable electronic device |
| WO2017166265A1 (en) * | 2016-04-01 | 2017-10-05 | Intel Corporation | Reducing idle-time energy consumption in universal serial bus power delivery circuitry of power adapters |
| CN109375758A (en) * | 2018-12-14 | 2019-02-22 | 佛山市伙伴联扬电子有限公司 | A kind of charging unit of host computer configuration |
| CN109375758B (en) * | 2018-12-14 | 2024-03-22 | 佛山市伙伴联扬电子有限公司 | Charging device for computer host configuration |
| CN109782885A (en) * | 2019-01-08 | 2019-05-21 | 佛山市伙伴联扬电子有限公司 | A kind of power supply and switching device of automatic sensing control lamp effect |
| CN109871113A (en) * | 2019-02-03 | 2019-06-11 | 广州视源电子科技股份有限公司 | Power output control method, device, plate, processor, system and medium |
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Address after: 518000 computer building of the Great Wall, Nanshan District science and Technology Park, Shenzhen, Guangdong Patentee after: China the Great Wall science and technology group Limited by Share Ltd Address before: 518000 the Great Wall computer building, 3 FA FA Road, Nanshan District science and Technology Park, Guangdong, Shenzhen Patentee before: China Changcheng Computer Shenzhen Co., Ltd. |