CN206195402U - A circuit that is used for display to realize standard of charging - Google Patents
A circuit that is used for display to realize standard of charging Download PDFInfo
- Publication number
- CN206195402U CN206195402U CN201621238021.8U CN201621238021U CN206195402U CN 206195402 U CN206195402 U CN 206195402U CN 201621238021 U CN201621238021 U CN 201621238021U CN 206195402 U CN206195402 U CN 206195402U
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- CN
- China
- Prior art keywords
- usb
- power
- circuit
- module
- circuit module
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- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a circuit that is used for display to realize standard of charging belongs to quick charge technical field, including power supply circuit module, USB HUB IC circuit module, power switch circuit module, EMIESD protection module and USB interface circuit module, power module provides power for entire system, USBHUB IC circuit module provides control signal and usb signal's production as the nucleus module, powerSwitch circuit module realizes the protection to the USB supply voltage, EMIESD protection module improve usb signal transmission quality, reduce electromagnetic interference, USB interface circuit module realizes usb signal external output and externally provides power. The utility model discloses an improve the output current size, and then improve the power transmission ability of external equipment, shorten charge time.
Description
Technical field
The utility model is related to rapid nitriding field, specifically a kind of to realize rechargeable standard for display
Circuit.
Background technology
USB（Universal Serial Bus）This technical standard is ubiquitous, close to 20 years when
Between in, USB is exactly to carry huge effect all the time, helps us ceaselessly to transmit data and electricity, and speed also continuous
Lifting.Specify according to USB, USB2.0 maximums can only provide 2.5W (5V/0.5A) power, although be enough to supply miniature electric
Equipment, but, USB3.0 could also provide 4.5W for external driver not enough（5V/0.9A）.To current intelligent hand
The battery capacity of the electronic equipment such as machine and flat board is increasing, and speed is too slow.Current rapid nitriding does not have one definitely
Definition, various brands all set the rapid nitriding scheme of oneself, the Quick Charge 1.0 ~ 3.0 of such as high pass
（QC）, MTK Power Delivery of MTP Pump Express, USB etc..
The content of the invention
Technical assignment of the present utility model is directed to above weak point, there is provided one kind realizes USB for display
The circuit of BC1.2 rechargeable standards, in the case of making USB voltages constant, output current is maximum up to 1.5A, big by improving output current
It is small, and then the power transmission capacity to external equipment is improved, shorten the charging interval.
The utility model solves the technical scheme that its technical problem used：
A kind of circuit that USB BC1.2 rechargeable standards are realized for display, including power circuit block, USB HUB IC
Circuit module, Power Switch circuit modules, EMI/ESD protection modules and usb circuit module；
Power module provides mains power for whole system；USB HUB IC circuit modules provide control as nucleus module
The generation of signal and usb signal；Power Switch circuit modules have overcurrent protection, short circuit turn back protection, heat shutoff protect
With undervoltage lockout defencive function, the protection to USB power source supply is realized；EMI/ESD protection modules improve the transmission matter of usb signal
Amount, the electromagnetic interference that reduces, usb circuit module realize that usb signal externally exports and externally provide power.
Power Switch circuit modules are power switch circuit module.
The course of work is as follows：
After power circuit provides power supply for USB chips and power chip, when there is Device to be linked into USB interface, USB meetings
The equipment of carrying out detection, because the VBUS and GND pin of connector are more long than D+ and D- pins, first can VBUS detections, voltage of VBUS
It is also to be ensured that data pin keeps contact after effectively, data contact detection is carried out, then main charger detection, the inspection of recharging device
Survey and CDP（Charging downlink port）Charging current limit value.After load access has been detected, USB HUB IC can have been received and set
The standby signal for accessing, is processed by USB HUB IC chips, and output PWREN enables signal and is sent to Power Switch cores
Piece, power switch is opened, and out-put supply gives USB interface powering load, and the loading of supply current size is determined.
A kind of circuit for realizing USB BC1.2 rechargeable standards for display of the present utility model compared to the prior art,
Have the advantages that：
With overcurrent protection mechanism, when the super many 1.5A of electric current are drawn in load, power switch can send and feed back signal to USB
HUB IC, and rupturing duty signal power supply, no longer supplying power for outside, protection circuit and peripheral hardware.Additionally, circuit also has reduces electricity
Magnetic disturbance (EMI) and static discharge (ESD) function, improve the transmission quality of usb signal, are prevented effectively from what USB hot plugs brought
Damage.
Brief description of the drawings
Fig. 1 is to be applied to the schematic diagram that display realizes USB BC1.2 rechargeable standard schemes.
Specific embodiment
With reference to specific embodiment, the utility model is described in further detail.
A kind of circuit that USB BC1.2 rechargeable standards are realized for display, including power circuit block, USB HUB IC
Circuit module, Power Switch circuit modules, EMI/ESD protection modules and usb circuit module；
Power module provides mains power for whole system；USB HUB IC circuit modules provide control as nucleus module
The generation of signal and usb signal；Power Switch（Power switch）Circuit module have overcurrent protection, short circuit turn back protection,
Heat shutoff is protected and undervoltage lockout defencive function, realizes the protection to USB power source supply；EMI/ESD protection modules improve USB letters
Number transmission quality, reduce electromagnetic interference, usb circuit module realizes that usb signal externally output and externally provides power.
The course of work is as follows：
After power circuit provides power supply for USB chips and power chip, when there is Device to be linked into USB interface, USB meetings
The equipment of carrying out detection, because the VBUS and GND pin of connector are more long than D+ and D- pins, first can VBUS detections, voltage of VBUS
It is also to be ensured that data pin keeps contact after effectively, data contact detection is carried out, then main charger detection, the inspection of recharging device
Survey and CDP（Charging downlink port）Charging current limit value.After load access has been detected, USB HUB IC can have been received and set
The standby signal for accessing, is processed by USB HUB IC chips, and output PWREN enables signal and is sent to Power Switch cores
Piece, power switch is opened, and out-put supply gives USB interface powering load, and the loading of supply current size is determined.
The great advantage of this programme is that, with overcurrent protection mechanism, when the super many 1.5A of electric current are drawn in load, power is opened
Pass can send and feed back signal to USB HUB IC, and rupturing duty signal power supply, no longer supplying power for outside, protection circuit and outer
If.Additionally, circuit also has reduces electromagnetic interference (EMI) and static discharge (ESD) function, the transmission quality of usb signal is improved,
It is prevented effectively from the damage that USB hot plugs bring.
By specific embodiment above, the those skilled in the art can readily realize the present invention.But should
Work as understanding, the utility model is not limited to above-mentioned specific embodiment.On the basis of disclosed embodiment, the technology
The technical staff in field can be combined different technical characteristics, so as to realize different technical schemes.
In addition to the technical characteristic described in specification, the known technology of those skilled in the art is.
Claims (2)
1. a kind of circuit that rechargeable standard is realized for display, it is characterised in that including power circuit block, USB HUB IC
Circuit module, Power Switch circuit modules, EMI/ESD protection modules and usb circuit module；
Power module provides mains power for whole system；USB HUB IC circuit modules provide control signal as nucleus module
With the generation of usb signal；Power Switch circuit modules have overcurrent protection, short circuit turn back protection, heat shutoff protection and owe
Lock defencive function is pressed off, the protection to USB power source supply is realized；The transmission quality of EMI/ESD protection modules raising usb signal,
Reduce electromagnetic interference, usb circuit module realizes that usb signal externally exports and externally provide power.
2. a kind of circuit that rechargeable standard is realized for display according to claim 1, it is characterised in that Power
Switch circuit modules are power switch circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621238021.8U CN206195402U (en) | 2016-11-18 | 2016-11-18 | A circuit that is used for display to realize standard of charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621238021.8U CN206195402U (en) | 2016-11-18 | 2016-11-18 | A circuit that is used for display to realize standard of charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195402U true CN206195402U (en) | 2017-05-24 |
Family
ID=58726991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621238021.8U Expired - Fee Related CN206195402U (en) | 2016-11-18 | 2016-11-18 | A circuit that is used for display to realize standard of charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206195402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170005494A1 (en) * | 2015-06-30 | 2017-01-05 | Dong-Sheng Li | Multi-functional hub integrated with ac power supply |
| US10574070B1 (en) * | 2019-01-19 | 2020-02-25 | Simpower Technology Inc. | Multi-functional hub integrated with AC power supply |
-
2016
- 2016-11-18 CN CN201621238021.8U patent/CN206195402U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170005494A1 (en) * | 2015-06-30 | 2017-01-05 | Dong-Sheng Li | Multi-functional hub integrated with ac power supply |
| US10224727B2 (en) * | 2015-06-30 | 2019-03-05 | Dong-Sheng Li | Multi-functional hub integrated with AC power supply |
| US20190157888A1 (en) * | 2015-06-30 | 2019-05-23 | Simpower Technology Inc. | Control circuit in hub |
| US10574070B1 (en) * | 2019-01-19 | 2020-02-25 | Simpower Technology Inc. | Multi-functional hub integrated with AC power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20181118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |