CN109375758B - Charging device for computer host configuration - Google Patents
Charging device for computer host configuration Download PDFInfo
- Publication number
- CN109375758B CN109375758B CN201811537162.3A CN201811537162A CN109375758B CN 109375758 B CN109375758 B CN 109375758B CN 201811537162 A CN201811537162 A CN 201811537162A CN 109375758 B CN109375758 B CN 109375758B
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- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
Abstract
The invention discloses a charging device for computer host configuration, which comprises a computer power supply, a charging module and a USB charging interface, wherein the computer power supply, the charging module and the USB charging interface are arranged in the host; the input end of the charging module is connected with a computer power supply, the output end of the charging module is connected with a USB charging interface, and charging or power supply is output through the USB charging interface. The external equipment can be charged or powered by the AC power of the desktop computer only when the AC power of the desktop computer is normally connected, and the charging or the power supply can be realized no matter whether the computer is started or not, so that the pain point that the USB port of the computer host charges the external equipment slowly is perfectly solved, the charging speed of the USB port of the computer host to the external equipment is improved in a multiplied way, and the work and the life of a user are more convenient.
Description
Technical Field
The invention relates to a charging device configured by a computer host, which is particularly suitable for quick charging of mobile phones, batteries with the same material and other devices with connectable ports, and belongs to the technical field of charging devices.
Background
At present, when the power consumption of the smart phone in the market is high and the use frequency of the mobile phone in the full-power state is high, the smart phone enters a no-power or low-power state after less than 8 hours, and at the moment, if a user does not carry a charger or a mobile power supply with the user, the smart phone needs to be charged by using a USB of a host computer. However, the current output current of USB charging of the existing computer host is 500-900ma MAX, and the main board and the power supply cannot provide the output charging current of 5V3A with large current, so that the speed of charging a mobile phone and other chargeable devices with batteries of the same material and connectable ports by using the USB is very slow, and the mobile phone with a battery capacity of 2600ma/h and an electric quantity of 10% cannot be fully charged after the mobile phone is continuously charged for eight hours; and the charging function of part of the USB of the computer host cannot be used independently, and the USB can be charged outwards only when the computer host is started. Thus, not only is the normal use of the user delayed, but also the experience of the user is affected.
If the problem that the charging speed of the computer host USB to the mobile phone and other devices is low is to be solved, the user must buy one more mobile phone charger or more standby mobile power products, which is not an alternative method. Therefore, research and development of a fast charging function of a computer host is needed to achieve the effect of fast and simple charging.
Disclosure of Invention
The present invention provides a charging device configured for a host computer to increase the charging speed of a USB port of the host computer to an external device.
In order to achieve the above-mentioned purpose, the present invention provides a charging device configured by a computer host, including a computer power supply and a charging module disposed inside the host, and a USB charging interface; the input end of the charging module is connected with a computer power supply, the output end of the charging module is connected with a USB charging interface, and charging or power supply is output through the USB charging interface.
In the above technical scheme, the computer power supply is a device which converts 220 v ac power into dc power and is specially used for supplying power to computer accessories such as CPU, motherboard, hard disk, memory bank, video card, optical disk drive, etc. The charging module is powered by a computer power supply and charges or supplies power to external equipment through the USB charging interface. Therefore, the inconvenience that a office worker or a game worker needs to carry a charger or a mobile power supply device with the office worker or the game worker is solved, and the charging speed can be increased by times on the basis of the traditional host USB charging.
Further, the output end of the charging module is connected with the USB charging interface through a wire rod, and the charging module is applicable to the condition of short distance between the charging module and the USB charging interface.
Further, the charging module output end and the USB charging interface are provided with USB female heads, USB male heads are respectively arranged at two ends of the USB connecting wire, and the charging module output end is connected with the USB charging interface through the USB connecting wire. The USB connecting wire is suitable for the condition that the distance between the charging module and the USB charging interface is long.
Further, the USB charging interface is arranged on the host. At this time, the output end of the charging module is connected with the USB charging interface by a public-to-public USB connecting wire. Only one USB connecting wire is needed to connect the charging module to the surface of the host shell, so that the charging module is convenient to charge or supply power to external equipment.
Further, the computer power supply supplies AC power or DC power to the input end of the charging module. The charging device is powered by a computer power supply, and is in an AC-DC conversion mode or a DC-DC conversion mode.
In the above technical scheme, if an AC-DC conversion mode is adopted, the charging module shares an AC input end with the computer power supply, and outputs voltage and current after AC-DC conversion; if the DC-DC conversion mode is adopted, a group of standby voltage is added in the computer power supply or the line enhancement load capacity is modified on the original 5VSB standby voltage to supply power to the DC-DC conversion line so as to achieve the purpose that the output of the charging device meets the load capacity of 5V 3A.
Furthermore, the charging module is arranged inside the computer power supply, outside the computer power supply, inside the computer host or outside the computer host, and can be installed and designed according to actual conditions, and the specific position does not influence normal use.
Furthermore, when the charging module is placed in the computer power supply, an independent main board is adopted or the charging module is arranged on the computer power supply main board.
Still further, the charging module includes an identification chip capable of identifying a charging protocol, so that the charging module charges the charging device and only supplies power to the non-charging device.
In the technical scheme, the identification chip in the charging module can be identified and matched with most charging protocols in the current market through the D+ and D-port of the chip, so that the charging module is compatible with most mobile phone charging standards in the market. When the external equipment is inserted into the USB charging interface, the charging module charges the charging equipment with the identified charging protocol, and the non-charging equipment without the charging protocol is only used as power supply, so that the damage caused by the fact that the non-charging USB equipment is inserted into the USB charging interface by mistake is avoided.
In summary, the invention aims at the desktop computer with a separated computer host and screen, an independent charging module with an identification function is arranged in the computer host, a special USB charging port is added at any position on the host panel which is convenient to install, and the charging module is led out to be directly connected with an independent USB charging interface of the host panel, so that the pain point of the computer host USB port for charging the external equipment slowly can be perfectly solved, the charging speed of the computer host USB port for the external equipment is improved in a multiplied way, and the problem that a shift office or a game office needs to carry a charger or a mobile power supply equipment with oneself is solved, so that the work and life of a user are more convenient.
Compared with the prior art, the invention has the following advantages:
1. the invention can charge or supply power to the external equipment only by normally connecting the AC power supply of the desktop computer (90-264V), and can realize charging or supply power no matter whether the computer is started or not.
2. The invention can identify and match most of charging protocols in the current market to charge, and if no external equipment of the charging protocols exists, the identification chip can not output current in a protocol, and only the current and the voltage required by the external equipment are simply output.
3. The invention solves the problems of slow charging and overlong charging waiting time of the traditional USB charging interface of the computer host by only one charging wire, and improves the experience comfort of users and the efficiency of work, life and travel.
Drawings
FIG. 1 is an electrical schematic block diagram of the present invention;
fig. 2 is a circuit diagram of an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in FIG. 1, the invention comprises a computer power supply and a charging module which are arranged inside a host, and a USB charging interface; the input end of the charging module is connected with a computer power supply, the output end of the charging module is connected with a USB charging interface, and charging or power supply is output through the USB charging interface.
In one embodiment of the invention, the output end of the charging module is welded with the USB charging interface through a wire.
In another embodiment of the invention, the output end of the charging module and the USB charging interface are provided with USB female connectors, two ends of the USB connecting wire are respectively provided with USB male connectors, and the output end of the charging module is connected with the USB charging interface through the USB connecting wire.
In still another embodiment of the present invention, the USB charging interface is provided at any place of the host computer that is convenient for plugging or mounting.
In other embodiments of the present invention, the computer power supply supplies AC power or DC power to the input of the charging module. However, if any set of the existing output voltages of the computer power supply is directly used to perform DC-DC conversion, the computer cannot perform the charging operation when not powered on.
Referring to the design of all AC-DC circuits in the market, the invention can be designed by using a primary side feedback mode or a secondary side feedback mode circuit, wherein U1 is a PWM built-in MOS circuit, belongs to a primary side feedback circuit, when the AC input of a computer power supply is normal, U1 obtains a driving voltage to work, the energy is negatively sensed to U2 through a T2-A transformer, U2 is a synchronous rectification chip, after T2-A energy is converted to U2, AC-DC conversion is carried out to DC output, the invention adopts primary side feedback, adjusts the output voltage through R6 and R7 resistors, obtains 5V voltage output after adjustment, and the output current is determined according to the circuit structure and the type selection of components.
The invention takes 5V3A design as an example, the circuit structure can be adjusted to be changed into 5V3A,9V 2A,12V 1.5A and other output voltages and currents, only the component selection and the circuit design are needed to be adjusted, the QC3.0PD protocol in the market at present can be adjusted through the circuit, the function of QC3.0PD protocol is achieved, and the output part U1 can be rectified and output through a common diode.
Of course, the invention can also be completed by adopting a DC-DC technology, DC power supply is carried out by adopting voltage ranges of 3.3V, 5V, 12V, 24V, 12V and the like, namely, a group of standby voltages are directly added or modified on a computer power supply main board, or the technology of DC-DC conversion is directly carried out by adopting any one group of the existing output voltages of the computer power supply, and the output result and the function which are the same as those of an AC-DC circuit are completed when the computer is started.
In other embodiments of the present invention, the charging module is placed inside the computer power supply, outside the computer power supply, inside the computer host, or outside the computer host, and may be fixed and installed by a housing or a bracket as appropriate.
In other embodiments of the present invention, the charging module is placed inside the computer power supply by using an independent motherboard or integrated on a large motherboard of the computer power supply, and the layout of the large motherboard is adjusted to form a circuit board by two parts.
In other embodiments of the present invention, the charging module includes an identification chip capable of identifying a charging protocol, so that the charging module charges the charging device and only powers the non-charging device. The identification function of the invention is the prior art in the market, the identification function is completed by communicating with a mobile phone protocol through a U3 identification chip, and the judgment of the output current can be realized by communicating with the protocol to charge the proper current output of the mobile phone.
As shown in FIG. 2, when the external device is plugged into the USB charging interface of the present invention, if the U3 identification chip cannot communicate with the external device in a protocol, the output current of the U3 identification chip is kept at 5V3A MAX, and the U3 identification chip cannot limit the current output. The principle of the misplug prevention function of the invention is the same as that described above, and when the U3 identification chip cannot communicate with the external equipment in a protocol, only the external equipment is powered, and the maximum 5V3A MAX effect is output.
When the charger with the identification function is used, the charger is arranged in the computer power module, and can charge external equipment inserted into the USB charging interface as long as AC alternating current is normally supplied, and the charger is connected to the special USB charging interface on the computer host panel through the USB connecting wire. The invention can charge normally no matter the computer is started or shut down normally, and the charger function is not affected by the working state of the computer. In addition, the charging equipment provided by the invention has an identification function, selects matched current output for external equipment connected with the charging equipment, and can prevent damage to equipment when the USB charging interface is connected with the misplug non-charging equipment.
By adopting the technical scheme, when the electric quantity of the mobile phone of the user and the similar charging equipment is insufficient, only one corresponding matched charging and power supply USB line is needed to supply power or charge 5V power for the mobile phone and other 5V power supply or charging equipment through connecting a host charging USB interface, the effect of quick charging can be achieved, and meanwhile, the inconvenience brought by multiple purchase or standby charging products of consumers is reduced.
Claims (3)
1. The charging device for the configuration of the computer host is characterized in that for a desktop computer with a separated computer host and screen, external equipment can be charged or powered by only normally connecting an AC power supply of the desktop computer, and charging or power supply can be realized no matter whether the computer is started or not; the device comprises a computer power supply arranged in a host, a charging module with an identification function and a USB charging interface, wherein the charging module is arranged in the host;
the input end of the charging module is connected with a computer power supply, the output end of the charging module is connected with a USB charging interface, and charging or power supply is output through the USB charging interface;
the computer power supply supplies AC power or DC power to the input end of the charging module; if the AC-DC conversion mode is adopted, the charging module and the computer power supply share an AC input end, and voltage and current are output after the AC is converted into DC; if the DC-DC conversion mode is adopted, a group of standby voltage is added in the computer power supply or the line enhancement load capacity is modified on the original 5VSB standby voltage to supply power to the DC-DC conversion line;
the output end of the charging module is connected with the USB charging interface through a wire rod, so that the charging module is applicable to the condition of short distance between the charging module and the USB charging interface; or the output end of the charging module and the USB charging interface are provided with USB female heads, the two ends of the USB connecting wire are respectively provided with USB male heads, the output end of the charging module is connected with the USB charging interface through the USB connecting wire, and the charging module is suitable for the condition that the distance between the charging module and the USB charging interface is long;
the charging module comprises an identification chip capable of identifying a charging protocol, so that the charging module charges the charging equipment and only supplies power to the non-charging equipment; the identification function is completed by communicating with a mobile phone protocol through the identification chip, and the judgment of the output current can be realized by communicating with the protocol so as to charge the proper current output of the mobile phone;
the identification chip in the charging module identifies and matches a charging protocol through a D+ and D-port of the chip, and when external equipment is inserted into the USB charging interface, the charging module charges the charging equipment with the identified charging protocol, and only uses non-charging equipment without the charging protocol as power supply;
when the external device is plugged into the USB charging interface, the output current of the identification chip is 5V3A output when the identification chip cannot be in protocol communication with the external device, the current output is not limited by the identification chip, and when the identification chip cannot be in protocol communication with the external device, only the external device is powered, and the maximum 5V3A output function is achieved.
2. The charging device of claim 1, wherein the USB charging interface is provided on the host.
3. The charging device of claim 1, wherein the charging module is disposed on a motherboard of the computer power supply or on the motherboard of the computer power supply when the charging module is disposed in the computer power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537162.3A CN109375758B (en) | 2018-12-14 | 2018-12-14 | Charging device for computer host configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537162.3A CN109375758B (en) | 2018-12-14 | 2018-12-14 | Charging device for computer host configuration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109375758A CN109375758A (en) | 2019-02-22 |
| CN109375758B true CN109375758B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811537162.3A Active CN109375758B (en) | 2018-12-14 | 2018-12-14 | Charging device for computer host configuration |
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| Country | Link |
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| CN (1) | CN109375758B (en) |
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| CN201327620Y (en) * | 2008-12-29 | 2009-10-14 | 深圳利能达实业有限公司 | Computer power |
| CN201936219U (en) * | 2010-01-07 | 2011-08-17 | 深圳智英电子有限公司 | Notebook computer with function of charging external electronic equipments |
| CN102403744A (en) * | 2010-09-17 | 2012-04-04 | 联芯科技有限公司 | Mobile phone charging circuit and charging method |
| WO2012153890A1 (en) * | 2011-05-12 | 2012-11-15 | Kim Young-Won | High-speed charging circuit, usb cable device having the high-speed charging circuit, and electronic device having the high-speed charging circuit |
| CN103970249A (en) * | 2014-05-30 | 2014-08-06 | 王志成 | Portable computer charger |
| CN204304532U (en) * | 2014-12-25 | 2015-04-29 | 中国长城计算机深圳股份有限公司 | A kind of computer and the feed circuit based on its USB interface |
| CN108874708A (en) * | 2018-06-28 | 2018-11-23 | 努比亚技术有限公司 | OTG equipment, terminal charging method, mobile terminal and computer readable storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767252A (en) * | 2015-04-28 | 2015-07-08 | 高创(苏州)电子有限公司 | Tablet computer |
-
2018
- 2018-12-14 CN CN201811537162.3A patent/CN109375758B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1484162A (en) * | 2002-09-20 | 2004-03-24 | 联想(北京)有限公司 | Notobook computer capable of recharging portable electronic equipment |
| CN201327620Y (en) * | 2008-12-29 | 2009-10-14 | 深圳利能达实业有限公司 | Computer power |
| CN201936219U (en) * | 2010-01-07 | 2011-08-17 | 深圳智英电子有限公司 | Notebook computer with function of charging external electronic equipments |
| CN102403744A (en) * | 2010-09-17 | 2012-04-04 | 联芯科技有限公司 | Mobile phone charging circuit and charging method |
| WO2012153890A1 (en) * | 2011-05-12 | 2012-11-15 | Kim Young-Won | High-speed charging circuit, usb cable device having the high-speed charging circuit, and electronic device having the high-speed charging circuit |
| CN103970249A (en) * | 2014-05-30 | 2014-08-06 | 王志成 | Portable computer charger |
| CN204304532U (en) * | 2014-12-25 | 2015-04-29 | 中国长城计算机深圳股份有限公司 | A kind of computer and the feed circuit based on its USB interface |
| CN108874708A (en) * | 2018-06-28 | 2018-11-23 | 努比亚技术有限公司 | OTG equipment, terminal charging method, mobile terminal and computer readable storage medium |
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| CN109375758A (en) | 2019-02-22 |
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