CN203288845U - A usb charging wall socket - Google Patents
A usb charging wall socket Download PDFInfo
- Publication number
- CN203288845U CN203288845U CN2013203393041U CN201320339304U CN203288845U CN 203288845 U CN203288845 U CN 203288845U CN 2013203393041 U CN2013203393041 U CN 2013203393041U CN 201320339304 U CN201320339304 U CN 201320339304U CN 203288845 U CN203288845 U CN 203288845U
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- CN
- China
- Prior art keywords
- circuit
- charging
- usb
- wall socket
- pwm control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a USB charging wall socket comprising a charging circuit and a USB interface connected with the charging circuit. Input with wide voltage is inputted into the charging circuit and successively passes through a rectifying and filtering circuit, a voltage transformation circuit, a constant-voltage constant-current protection circuit, and a USB output circuit to be outputted in order to achieve charging. The voltage transformation circuit is connected with a PWM control circuit used for controlling power conversion and voltage transformation. The PWM control circuit is connected with an optical coupler isolation circuit having an anti-interference effect. The charging circuit also comprises an operational detection circuit and a LED indication circuit. The PWM control circuit is connected with a light-emitting LED indicating a charging state. By a simple circuit structure, the utility model provides a convenient and reliable USB charging wall socket. Just one USB connecting line is required to easily achieve USB charge of most current electronic devices and to greatly facilitate charging requirements of people.
Description
Technical field
The utility model relates to a kind of charging technique device, relates in particular to a kind of simple, convenient, safe and reliable USB charging wall socket.
Background technology
oneself incorporates our normal life fully present digital electronic product, a large amount of electronic equipments, digital product is all to charge by international standard USB2.0 interface, usually the supply socket great majority of installing in family or office are the supply socket of civil power, the various plug passes of output AC 220V only are provided, but the high speed development of electronic technology, if these electronic equipments need to be powered or charge, just these electronic products need to be connected with other power supplys with USB interface by the USB connecting line, power source special transducer such as computer or USB interface, this no doubt can keep the normal use of above-mentioned electronic product, but for the power supply changeover device that carries simultaneously the connecting line that is provided with USB port and have a USB port, be also a not thing very easily, if sometimes forget, especially travel outside, to directly can have influence on normal use, can bring inconvenience to the user.
The utility model content
The purpose of this utility model is to provide a kind of simple and reliable, convenient easy-to-use USB charging wall socket.
To achieve these goals; the technical scheme that the utility model provides is: a kind of USB charging wall socket is provided; comprise charging circuit and the USB interface that is connected with charging circuit; described charging circuit is accepted wide voltage input; successively through the output of charging of current rectifying and wave filtering circuit, transforming circuit, constant pressure and flow protective circuit, USB output circuit; described transforming circuit connects the pwm control circuit that is used for power ratio control conversion and transformation, and described pwm control circuit connects the optical coupling isolation circuit of Anti-Jamming.
Described charging circuit also comprises computing testing circuit and LED indicating circuit, and described LED indicating circuit connects the emitting led of indication charged state.
The utility model is by simple circuit structure, a kind of convenient and reliable USB charging wall socket is provided, only need a USB connecting line namely can conveniently realize current most electronic equipments are carried out the USB charging, needn't rely on again special power supply adaptor,, applicable to various public and private occasions such as various office buildings, hotel, villa, apartment and common households, be very easy to people's charging demand.
Description of drawings
Below utilize accompanying drawing to be further detailed the utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model.
Fig. 1 is the circuit theory diagrams of USB charging wall socket described in the utility model.
Fig. 2 is the circuit structure diagram of USB charging wall socket described in the utility model.
Embodiment
, in order better to understand the technical solution of the utility model, below in conjunction with accompanying drawing, describe the embodiment that the utility model provides in detail.
as depicted in figs. 1 and 2, the utility model embodiment provides a kind of USB charging wall socket, comprise charging circuit and the USB interface that is connected with charging circuit, described charging circuit is accepted wide voltage input, diode D1, D2, D3, D4 forms a bridge rectifier, capacitor C 1, filter circuit of formation in parallel with inductance L 1 after the C2 series connection, described wide voltage input is after current rectifying and wave filtering circuit, be input to 1 of transformer T1, 2 pins, form the transformer input, described 3, 4 pin and 5, 6 pin thereby induction have voltage, described 5, the induction output of 6 pin, through the constant pressure and flow protective circuit, the output of charging of USB output circuit, described transforming circuit connects the pwm control circuit that is used for power ratio control conversion and transformation, described pwm control circuit connects the optical coupling isolation circuit of Anti-Jamming.
Described charging circuit also comprises computing testing circuit and LED indicating circuit, and described LED indicating circuit connects the emitting led of indication charged state.
Described USB interface provides the charging output of 5V/1.5A.
The utility model is by simple circuit structure, a kind of convenient and reliable USB charging wall socket is provided, only need a USB connecting line namely can conveniently realize current most electronic equipments are carried out the USB charging, needn't rely on again special power supply adaptor,, applicable to various public and private occasions such as various office buildings, hotel, villa, apartment and common households, be very easy to people's charging demand.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (2)
1. USB charging wall socket; it is characterized in that: comprise charging circuit and the USB interface that is connected with charging circuit; described charging circuit is accepted wide voltage input; successively through the output of charging of current rectifying and wave filtering circuit, transforming circuit, constant pressure and flow protective circuit, USB output circuit; described transforming circuit connects the pwm control circuit that is used for power ratio control conversion and transformation, and described pwm control circuit connects the optical coupling isolation circuit of Anti-Jamming.
2. USB charging wall socket as claimed in claim 1, it is characterized in that: described charging circuit also comprises computing testing circuit and LED indicating circuit, described LED indicating circuit connects the emitting led of indication charged state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203393041U CN203288845U (en) | 2013-06-06 | 2013-06-06 | A usb charging wall socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203393041U CN203288845U (en) | 2013-06-06 | 2013-06-06 | A usb charging wall socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203288845U true CN203288845U (en) | 2013-11-13 |
Family
ID=49545191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203393041U Expired - Fee Related CN203288845U (en) | 2013-06-06 | 2013-06-06 | A usb charging wall socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203288845U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901563A (en) * | 2015-06-19 | 2015-09-09 | 温州市麦特力克电器有限公司 | USB socket |
| WO2019047328A1 (en) * | 2017-09-07 | 2019-03-14 | 深圳市元创时代科技有限公司 | Socket and method for supplying power to multiple devices by using socket |
-
2013
- 2013-06-06 CN CN2013203393041U patent/CN203288845U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901563A (en) * | 2015-06-19 | 2015-09-09 | 温州市麦特力克电器有限公司 | USB socket |
| WO2019047328A1 (en) * | 2017-09-07 | 2019-03-14 | 深圳市元创时代科技有限公司 | Socket and method for supplying power to multiple devices by using socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140606 |