CN203151727U - USB2.0/USB3.0 power supply power automatic identification circuit - Google Patents
USB2.0/USB3.0 power supply power automatic identification circuit Download PDFInfo
- Publication number
- CN203151727U CN203151727U CN 201220503617 CN201220503617U CN203151727U CN 203151727 U CN203151727 U CN 203151727U CN 201220503617 CN201220503617 CN 201220503617 CN 201220503617 U CN201220503617 U CN 201220503617U CN 203151727 U CN203151727 U CN 203151727U
- Authority
- CN
- China
- Prior art keywords
- port
- usb socket
- circuit
- power
- output
- 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 - Lifetime
Links
Abstract
The utility model discloses a circuit for automatically identifying and converting power of power supply between aUSB2.0 port and a USB3.0 port. The circuit comprises a USB2.0 port, a USB3.0 port, a circuit board, a power circuit, and a USB socket, the USB socket is connected to the circuit board through the power circuit, when the USB2.0 port is connected with the USB socket, a seventh pin of the USB socket is grounded, Q3 is conducted, and Q1 is conducted. At this time, voice frequency output is controlled in a range of 5V/1000mA of USB output through AGC. When the USB3.0 port is connected with the USB socket, the seventh pin of the USB socket is hang in the air, Q3 is cut off, and Q1 is cut off. At this time, voice frequency output is controlled in a range of 5V/500mA of USB output through AGC. The USB2.0/USB3.0 automatic conversion circuit can protect a computer, and can also solve the problem of energy waste when using the USB3.0 port under a circumstance of too small sound box output, truly achieving energy conservation and environment protection.
Description
Technical field
The utility model directly applies to sound equipment, and protection computer USB port is specifically related to a kind of USB2.0/USB3.0 power automatic identification circuit.
Background technology
Sound equipment refers to the language except the people, other sounds the music, comprises various sound that sound equipment, the people's of sound, the machine tools of the sound, the animal of natural environment action is sent etc.Sound equipment probably comprises power amplifier, equipment (comprising compressor, effect device, equalizer, VCD, DVD etc.), loud speaker sound console, microphone, display device etc. cover of adding up all round.Wherein, audio amplifier is exactly audio output device, loudspeaker, subwoofer etc.
The 5V/500mA of computer USB 2.0 ports output now, USB3.0 port output 5V/1000mA, sound equipment is received the USB2.0 port of the easy damage computer that the output of sound equipment is bigger on the computer, in order to guarantee not damage the USB2.0 port, and the output that sound equipment arranges is used insufficient again with the USB3.0 port when smaller.Tonequality to sound equipment is bad again.This circuit power output that can automatically switch between USB2.0 and USB3.0 is arranged now, power supply is rationally utilized protected the USB port of computer not to be damaged simultaneously, also have tonequality to get well.
The utility model content
The circuit that provides power between a kind of USB2.0/USB3.0 to identify conversion automatically is provided the utility model.
For addressing the above problem, the utility model is realized by following scheme: USB2.0/USB3.0 power automatic identification circuit, comprise USB2.0, USB3.0, circuit board, power circuit, USB socket, described USB socket is connected to circuit board by power circuit.
Described USB2.0 connects USB socket, 7 pin ground connection of this USB socket.
Described USB3.0 connects USB socket, and 7 pin of this USB socket are unsettled.
The utility model USB2.0/USB3.0 automatic switch-over circuit both can be protected computer, also can solve simultaneously because the too small USB3.0 of use of audio amplifier output wastes energy, and really reached energy-conserving and environment-protective.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, when use be USB2.0 the time, 7 pin of USB socket are unsettled, Q3 ends, and Q1 is ended.At this moment audio frequency makes output control in the scope of USB output 5V500mA through AGC, when use be USB3.0 the time, 7 pin ground connection of USB socket, the Q3 conducting makes the Q1 conducting.At this moment audio frequency makes output control in the scope of USB output 5V1000mA through AGC, thereby reaches the effect of protection computer USB mouth.Also can solve simultaneously because the too small USB3.0 of use of audio amplifier output wastes energy, really reach energy-conserving and environment-protective.
Claims (3)
1.USB2.0/USB3.0 the power automatic identification circuit is characterized in that: comprise USB2.0, USB3.0, circuit board, power circuit, USB socket, described USB socket is connected to circuit board by power circuit.
2. USB2.0/USB3.0 power automatic identification circuit according to claim 1 is characterized in that: described USB2.0 connection USB socket, 7 pin ground connection of this USB socket.
3. USB2.0/USB3.0 power automatic identification circuit according to claim 1 is characterized in that: described USB3.0 connects USB socket, and 7 pin of this USB socket are unsettled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503617 CN203151727U (en) | 2012-09-28 | 2012-09-28 | USB2.0/USB3.0 power supply power automatic identification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503617 CN203151727U (en) | 2012-09-28 | 2012-09-28 | USB2.0/USB3.0 power supply power automatic identification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203151727U true CN203151727U (en) | 2013-08-21 |
Family
ID=48979215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220503617 Expired - Lifetime CN203151727U (en) | 2012-09-28 | 2012-09-28 | USB2.0/USB3.0 power supply power automatic identification circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203151727U (en) |
-
2012
- 2012-09-28 CN CN 201220503617 patent/CN203151727U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104267924A (en) | Mobile terminal and audio processing method thereof | |
| CN203027445U (en) | Portable solar sound device | |
| CN205912222U (en) | Earphone of portable KTV function | |
| CN203151727U (en) | USB2.0/USB3.0 power supply power automatic identification circuit | |
| CN204013995U (en) | A kind of earphone interactive system and a kind of earphone | |
| CN202374410U (en) | Active sound box capable of connecting with cell phone | |
| CN203027410U (en) | Sound device with independent power supply | |
| CN202750221U (en) | External audio broadcasting device | |
| CN204539423U (en) | Integral intelligent sound equipment | |
| CN106024048A (en) | Voice fast recording device able to realize pause at any time and unintermittent recording | |
| CN202602844U (en) | Loudspeaker box | |
| CN203574818U (en) | Portable sound box | |
| CN205829985U (en) | A kind of pull bar active loundspeakers with charge and discharge protecting function | |
| CN206413165U (en) | A kind of electronic equipment | |
| CN204929158U (en) | Mirror audio amplifier | |
| CN203608359U (en) | Portable wireless digital teaching public address system device | |
| CN203027409U (en) | Mobile stereo | |
| CN203422931U (en) | Split type recording device | |
| CN201638169U (en) | Mouse with USB sound box | |
| CN203027407U (en) | Sound device with MP3 (MPEG Audio Layer 3) player | |
| CN203387633U (en) | Sound device | |
| CN202121779U (en) | Public address set based on Bluetooth | |
| CN203167184U (en) | Sound device capable of illuminating | |
| CN207589157U (en) | A kind of audio system using S06 sound card converters | |
| CN202105427U (en) | Game machine steering wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161125 Address after: 342100 Anyuan County of Jiangxi Province, Ganzhou City Industrial Park, Kowloon District Cody Avenue Patentee after: KEDY TECH (GANZHOU) ELECTRONICS Co.,Ltd. Address before: Get Huida Industrial Park No. 237 Street Sin Hang Road in Shenzhen city of Guangdong Province, Baoan District Guanlan 518001 Patentee before: SHENZHEN DEHUIDA TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20171129 Address after: Jiangxi Province, Ganzhou city fire 342100 Anyuan county road get Huida science and Technology Park Patentee after: GANZHOU DEHUIDA TECHNOLOGY Co.,Ltd. Address before: 342100 Anyuan County of Jiangxi Province, Ganzhou City Industrial Park, Kowloon District Cody Avenue Patentee before: KEDY TECH (GANZHOU) ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |