CN1945923A - Charging mode control circuit and method - Google Patents
Charging mode control circuit and method Download PDFInfo
- Publication number
- CN1945923A CN1945923A CN 200510100221 CN200510100221A CN1945923A CN 1945923 A CN1945923 A CN 1945923A CN 200510100221 CN200510100221 CN 200510100221 CN 200510100221 A CN200510100221 A CN 200510100221A CN 1945923 A CN1945923 A CN 1945923A
- Authority
- CN
- China
- Prior art keywords
- control circuit
- charge mode
- data interface
- power data
- rechargeable battery
- 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.)
- Pending
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This invention relates to a control circuit of a charge mode including a detection circuit used in detecting if a supply data interface is at the communication state and sending a control signal, a charge control circuit used in controlling the control mode of a chargeable cell, in which, said supply data interface is connected with an outer supply data interface to receive supply or communicate with it, which can speed up the velocity of charge of the chargeable cell when using the supply data interface for charge.
Description
[technical field]
The present invention relates to a kind of charge mode control circuit, particularly a kind of charge mode control circuit and method of the portable set with USB interface.
[background technology]
Information Access such as portable set such as palmtop PC amount is big, volume is little, easy to carry, so since it comes out, enjoyed the user to favor always.For making portable set user-friendly better, long as electrification time, the generally all built-in jumbo rechargeable battery of portable set.In addition, because power data interface, USB (Universal Serial Bus for example, USB) interface has the dual-use function of power supply supply and transfer of data, therefore often be incorporated into some electronic products, comprise on the portable set that portable set utilizes this USB interface, can be connected directly on any equipment with USB interface, easily communication and/or discharge and recharge mutually.Yet when utilizing the USB charging in the prior art, the charging current maximum is no more than 500mA, and this less charging current has greatly limited the speed of portable set charging.
Therefore, be necessary to provide a kind of charge mode control circuit, it places in the portable set, can choose charge mode according to charge power supply, with to the rechargeable battery quick charge in the portable set.
[summary of the invention]
In view of this, provide a kind of charge mode control circuit, to choose of the chargeable battery charging of corresponding charge mode according to different charge power supplies to portable set.
A kind of portable set also is provided, can chooses corresponding charge mode according to different charge power supplies the rechargeable battery in it is charged.
A kind of charge mode control circuit comprises: a circuit for detecting is used to detect a power data interface and whether is in communication state, and sends a control signal; And a charging control circuit, the control signal that is used for sending according to circuit for detecting is controlled the charge mode of rechargeable battery.Described power data interface links to each other with an extraneous power data interface, receiving the power supply supply from extraneous power data interface, and/or communication mutually.Described extraneous power data interface is connected on an adaptive device or the communication equipment.When described power data interface links to each other by extraneous power data Interface and Communication equipment and mutually during communication, charging control circuit charges to rechargeable battery with a common charge mode; When described power data interface linked to each other with adaptive device by extraneous power data interface, charging control circuit charged to rechargeable battery with a fast charge mode.Described charging control circuit has a power interface, and described power interface links to each other with the power data interface, so that receive the charging of power supply supply supply rechargeable battery from this power data interface.Described charging control circuit has a control port, this control port receives the control signal that circuit for detecting sends, so that the control of charging electric control circuit flows into charging control circuit and the charging current that flows out to rechargeable battery from charging control circuit from power interface, control the charge mode of rechargeable battery with this.
One portable set, it has above-mentioned power data interface, charge mode control circuit and rechargeable battery.It links to each other with an extraneous data power interface via described power data interface, according to the situation of power data interface and the mutual communication of extraneous power data interface, utilizes the charge mode of charge mode control circuit control rechargeable battery.
Compared with prior art, when utilizing the charging of power data interface, above-mentioned charge mode control circuit and portable set can be accelerated the charging rate of rechargeable battery.
[description of drawings]
Fig. 1 is the circuit block diagram of charge mode control circuit one execution mode.
Fig. 2 is the charge mode control circuit one concrete schematic diagram of using.
[embodiment]
Consulting Fig. 1, is the circuit block diagram of charge mode control circuit one execution mode.This charge mode control circuit 320 places between a rechargeable battery 330 and the power data interface (Fig. 1 exemplifies and is USB interface 310), carries out the current flow of the State Control of communication to rechargeable battery 330 chargings with the external world according to USB interface 310.This charge mode control circuit 320 mainly comprises a circuit for detecting 321 and a charging control circuit 322.Circuit for detecting 321 connects two data pin of USB interface 310: D+ and D-, and with the communication state of detecting USB interface 310.This charging control circuit 322 has three ports: a power port Pin, a charging control port Cn and an output port Out.Control port Cn links to each other with circuit for detecting 321, receives the control signal that circuit for detecting 321 sends; Power port Pin connects the power pins Vcc of USB interface 310, receives the charging current that inputs to charging control circuit 322 from the Vcc pin; Output port Out connects rechargeable battery 330, to export charging current to rechargeable battery 330.Also comprise a control circuit (not shown) in the charging control port Cn, this control circuit mainly is the control signal that receives according to control port Cn, and control is from the charging current flow of power port Pin input and charging current flow from output interface Out output.
Circuit for detecting 321 sends the control port Cn of control signal corresponding to charging control circuit 322 according to the state of USB interface 310 data pin D+ and D-and extraneous communication.For example, if USB interface is just carried out communication with the external world, then circuit for detecting 321 sends a low level control signal.Charging control circuit 322 these control signals of identification, control is flowed out the little magnitude of current from power port Pin inflow and from output port Out, for example the USB interface of the usb protocol regulation maximum current 500mA that can provide charges to rechargeable battery 330 with a common charge mode.If USB interface 310 not with extraneous communication, then circuit for detecting 321 sends a high-level control signal, charging control signal 322 flows into and the big electric current that flows out from Out greater than 500mA from power port Pin according to this control signal control, with a fast charge mode rechargeable battery 330 is charged.In the present embodiment, circuit for detecting can be detected the voltage or the electric current at USB interface 310 pin D+ and D-place, obtains the communication state of USB interface 310 with this, and is non-for limiting at this.
Consulting Fig. 2, is the charge mode control circuit one concrete schematic diagram of using.This charge mode control circuit 320 together places a portable set 30 inside with rechargeable battery 330, and USB interface 310 places on this portable set 30.This portable set 30 is got in touch with extraneous via this USB interface 310, and for example with an AC/DC adaptive device 40 or a communication device, it is that a computer 10 is got in touch that Fig. 2 exemplifies.AC/DC adaptive device 40 itself has a USB interface (not shown), perhaps as shown in Figure 2, is connected to via cable 61 and 62 on the switching device 20 of a tool one USB interface 210.Two data pin D+ of USB interface 210 and D-are idle, and power pins Vcc and grounding pin GND are connected to AC/DC adaptive device 40 via cable 61,62.The USB interface 310 of portable set 30 couples with AC/DC adaptive device 40 USB interface that had own or the USB interface 210 of switching device 20, at this moment, the effect that USB interface that the USB interface 310 and the AC/DC adaptive device 40 of portable set 30 itself has or the USB interface 210 on the switching device 20 all only have electric energy transmitting, effect is equivalent to a lead, and its data pin D+ and D-are idle.After data pin D+, the D-that circuit for detecting 321 in the charge mode control circuit 320 detect USB interface 310 was in idle situation, it sent corresponding control signal to charging control circuit 322, controls the charge mode of rechargeable battery 330 with this.Computer 10 itself has a usb 1 10, be coupled to when USB interface 310 on the usb 1 10 of computer 10 portable set 30, via this two USB interface 310,210 and computer 10 mutual communications, after the two data pin D+ that circuit for detecting 321 in the charge mode control circuit 320 detect USB interface 310 are in communication condition with D-, the charge mode of transmission corresponding control signals rechargeable battery 330.
In the portable set 30, also can between charge mode control circuit 320 and rechargeable battery 330, increase charge-discharge circuit (not shown).This charge-discharge circuit can include functions such as charge and discharge protecting, management of charging and discharging, does not limit at this.After portable set 30 has the management of charging and discharging function, when the user is connected to this portable set 30 on the computer 10, start charge-discharge circuit when it can electric weight be lower than certain level in rechargeable battery 330, and choose common charge mode by charge mode control circuit 320 and give rechargeable battery 330 chargings, and when electric weight is higher than another level in rechargeable battery 330, stop to its charging.This can be avoided portable set 30 connected and go up behind the computer 10 discharging and recharging repeatedly.
In the foregoing description, charge mode control circuit 320 is the element that is integrated in the portable set 30 with USB interface 310, in other execution modes, charge mode control circuit 320 can be integrated in portable set 30 outsides, directly get in touch with interior charge-discharge circuit or the rechargeable battery 330 of portable set 30 by a power interface.In addition, in the present embodiment, circuit for detecting 321 is the communication state that USB interface 310 begins to detect USB interface 310 when just being connected with the external world.
Claims (15)
1. charge mode control circuit is used to control the charge mode of rechargeable battery in the electronic equipment, it is characterized in that described charge mode control circuit links to each other with a power data interface, comprising:
One circuit for detecting is used to detect the power data interface and whether is in communication state, and sends a control signal; And
One charging control circuit, the control signal that is used for sending according to circuit for detecting is controlled the charge mode of rechargeable battery.
2. charge mode control circuit as claimed in claim 1 is characterized in that, described power data interface links to each other with an extraneous power data interface, receiving the power supply supply from extraneous power data interface, and/or communication mutually.
3. charge mode control circuit as claimed in claim 2 is characterized in that, described extraneous power data interface is connected on an adaptive device or the communication equipment.
4. charge mode control circuit as claimed in claim 3 is characterized in that, the charge mode of described rechargeable battery comprises a common charge mode and a fast charge mode.
5. charge mode control circuit as claimed in claim 4 is characterized in that, when described power data interface was gone forward side by side row communication by extraneous power data Interface and Communication equipment is continuous, charging control circuit charged to rechargeable battery with common charge mode; When described power data interface linked to each other with adaptive device by extraneous power data interface, charging control circuit charged to rechargeable battery with fast charge mode.
6. charge mode control circuit as claimed in claim 4, it is characterized in that, described charging control circuit has a power interface, and described power interface links to each other with the power data interface, so that receive the charging of power supply supply supply rechargeable battery from this power data interface.
7. charge mode control circuit as claimed in claim 5, it is characterized in that, described charging control circuit has a control port, this control port receives the control signal that circuit for detecting sends, so that the control of charging electric control circuit flows into charging control circuit and the charging current amount that flows out to rechargeable battery from charging control circuit from power interface, control the charge mode of rechargeable battery with this.
8. a portable set is characterized in that, comprising:
One rechargeable battery;
One power data interface; And
One charge mode control circuit, this charge mode control circuit is according to the charge mode of the situation control rechargeable battery of power data interface and extraneous communication.
9. portable set as claimed in claim 8 is characterized in that, described power data interface links to each other with an extraneous power data interface, receiving the power supply supply from extraneous power data interface, and/or communication mutually.
10. portable set as claimed in claim 9 is characterized in that, described extraneous power data interface is connected on an adaptive device or the communication equipment.
11. portable set as claimed in claim 10 is characterized in that, the charge mode of described rechargeable battery comprises a common charge mode and a fast charge mode.
12. portable set as claimed in claim 11 is characterized in that, when described power data interface was gone forward side by side row communication by extraneous power data Interface and Communication equipment is continuous, charging control circuit charged to rechargeable battery with common charge mode; When described power data interface linked to each other with adaptive device by extraneous power data interface, charging control circuit charged to rechargeable battery with fast charge mode.
13. portable set as claimed in claim 11, it is characterized in that, described charge mode control circuit comprises a charging control circuit and a circuit for detecting, the situation of described circuit for detecting detecting power data interface and the mutual communication of extraneous power data interface also transmits control signal to charging control circuit, and described charging control circuit is according to the charge mode of control signal control rechargeable battery.
14. portable set as claimed in claim 13 is characterized in that, described charging control circuit has a power interface, and described power interface links to each other with the power data interface, so that receive the charging of power supply supply supply rechargeable battery from this power data interface.
15. portable set as claimed in claim 14, it is characterized in that, described charging control circuit has a control port, this control port receives the control that circuit for detecting sends, so that the control of charging electric control circuit flows into charging control circuit and the charging current amount that flows out to rechargeable battery from charging control circuit from power interface, control the charge mode of rechargeable battery with this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100221 CN1945923A (en) | 2005-10-06 | 2005-10-06 | Charging mode control circuit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100221 CN1945923A (en) | 2005-10-06 | 2005-10-06 | Charging mode control circuit and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1945923A true CN1945923A (en) | 2007-04-11 |
Family
ID=38045181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510100221 Pending CN1945923A (en) | 2005-10-06 | 2005-10-06 | Charging mode control circuit and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1945923A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279623A (en) * | 2010-06-12 | 2011-12-14 | 技嘉科技股份有限公司 | Mainboard with handheld rapid-charging type multimedia device |
| CN102799554A (en) * | 2012-07-23 | 2012-11-28 | 天津三星电子有限公司 | Data transmission method, apparatus thereof and display terminal applied thereto |
| WO2014075498A1 (en) * | 2012-11-19 | 2014-05-22 | 中兴通讯股份有限公司 | Charging management method, device and system |
| CN103828165A (en) * | 2011-09-08 | 2014-05-28 | 丰田自动车株式会社 | Vehicle charging system, vehicle charging method, power supply system, and power supply method |
| CN104852412A (en) * | 2014-02-18 | 2015-08-19 | 联想(北京)有限公司 | Charging current control method and electronic device |
| CN102279623B (en) * | 2010-06-12 | 2016-12-14 | 技嘉科技股份有限公司 | For having the motherboard of the hand-held multimedia device filling function soon |
| CN108988417A (en) * | 2014-01-28 | 2018-12-11 | 广东欧珀移动通信有限公司 | Power supply adaptor and terminal |
| US11283281B2 (en) | 2014-01-28 | 2022-03-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging control apparatus and method for electronic device |
-
2005
- 2005-10-06 CN CN 200510100221 patent/CN1945923A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279623A (en) * | 2010-06-12 | 2011-12-14 | 技嘉科技股份有限公司 | Mainboard with handheld rapid-charging type multimedia device |
| CN102279623B (en) * | 2010-06-12 | 2016-12-14 | 技嘉科技股份有限公司 | For having the motherboard of the hand-held multimedia device filling function soon |
| CN103828165A (en) * | 2011-09-08 | 2014-05-28 | 丰田自动车株式会社 | Vehicle charging system, vehicle charging method, power supply system, and power supply method |
| US9751421B2 (en) | 2011-09-08 | 2017-09-05 | Toyota Jidosha Kabushiki Kaisha | Charging system for vehicle, method for charging vehicle, power supply system, and power supply method |
| CN102799554A (en) * | 2012-07-23 | 2012-11-28 | 天津三星电子有限公司 | Data transmission method, apparatus thereof and display terminal applied thereto |
| WO2014075498A1 (en) * | 2012-11-19 | 2014-05-22 | 中兴通讯股份有限公司 | Charging management method, device and system |
| CN108988417A (en) * | 2014-01-28 | 2018-12-11 | 广东欧珀移动通信有限公司 | Power supply adaptor and terminal |
| US11283281B2 (en) | 2014-01-28 | 2022-03-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging control apparatus and method for electronic device |
| CN104852412A (en) * | 2014-02-18 | 2015-08-19 | 联想(北京)有限公司 | Charging current control method and electronic device |
| CN104852412B (en) * | 2014-02-18 | 2017-03-01 | 联想(北京)有限公司 | A kind of charging current control method and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8788852B2 (en) | System and method for providing power through a reverse local data transfer connection | |
| CN103457348B (en) | Semiconductor integrated circuit and operating method thereof | |
| CN1881738B (en) | Charge mode control circuit and method | |
| CN102684270B (en) | Method for identifying type of universal serial bus (USB) chargers and USB device | |
| CN101795010B (en) | Lithium battery protection method | |
| CN103019352B (en) | Universal serial bus power supply method, device end device and system applying same | |
| CN207664646U (en) | Contact-type charging device | |
| CN101728850A (en) | Charging device and use method thereof | |
| CN203135541U (en) | Apparatus with wireless mobile charging function | |
| CN102299532B (en) | Charging device | |
| CN105098890B (en) | Charging data line and charger | |
| CN105703429A (en) | Charging method, mobile terminal, charging device and system | |
| CN103176938A (en) | Universal serial bus host and power management method thereof | |
| CN202749913U (en) | Wireless charger receiver and wireless terminal | |
| CN105808488A (en) | Electronic device and power supply control method | |
| CN112087014B (en) | Combination of battery pack and adapter | |
| CN106655316A (en) | Charging circuit and terminal equipment | |
| CN105656118A (en) | Device supporting automatic switch of power-consumption/power-supply modes and equipment comprising device | |
| EP2755109B1 (en) | Charging an electrical device via a data interface | |
| CN1945923A (en) | Charging mode control circuit and method | |
| CN101685934B (en) | Pluggable adaptor and potable system | |
| CN204858641U (en) | Charger data line and charger | |
| CN105656148A (en) | Battery management system of man-machine interaction sport car | |
| CN206442131U (en) | Charger baby and OTG data wires | |
| GB2386005A (en) | Battery charging for portable devices with USB links |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |