CN104978002A - Power supply control system and method - Google Patents
Power supply control system and method Download PDFInfo
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- CN104978002A CN104978002A CN201410137503.3A CN201410137503A CN104978002A CN 104978002 A CN104978002 A CN 104978002A CN 201410137503 A CN201410137503 A CN 201410137503A CN 104978002 A CN104978002 A CN 104978002A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 85
- 230000007704 transition Effects 0.000 claims description 6
- 230000005055 memory storage Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention discloses a power supply control system, which comprises power supply equipment, a transmission device and power receiving equipment, wherein the power supply equipment comprises a transmission interface and a processor; the processor is used for converting voltage output by a power supply into a first type of voltage, and the first type of voltage is output to the power receiving equipment through a first transmission line of the transmission device; when the first type of voltage is received, the power receiving equipment outputs a mode signal to the power supply equipment through a second transmission line of the transmission device; and the power supply equipment outputs a second type of voltage to the power receiving equipment through a first pin to cause the power receiving equipment to enter a second work mode. The invention also provides a power supply control method. The power supply control system and method changes the output voltage of an interface to guarantee that the power receiving equipment normally works, and therefore, the damage of the interface due to the increase of current flowing through the interface can be avoided.
Description
Technical field
The present invention relates to a kind of power control system and method.
Background technology
Now, the standard USB(Universal Serial Bus on computer, USB (universal serial bus)) voltage of 5V is provided.External unit (as a mobile phone) is connected to computer by USB.Computer is that external unit charges by the 5V voltage that its USB interface provides.But, computer only provides certain power by USB interface, when the power of external unit increases, USB interface because of computer only provides the voltage of 5V, think and meet larger power, flow through the electric current of USB interface also along with increase, so may increase because of the electric current flow through and cause the damage of USB interface.
Summary of the invention
In view of above content, be necessary to provide a kind of avoid because of flow through electric current excessive cause interface to damage power control system and method.
A kind of power control system, comprising:
One transmitting device, comprises one first transmission line and one second transmission line;
One power-supply unit, comprising:
One transmission interface, comprises the second pin that first pin and being connected to this first transmission line is connected to this second transmission line;
One processor, comprising:
One detecting unit; And
One switch unit, be a first kind voltage for the voltage transitions exported by a power supply, this switch unit also exports this first kind voltage by this first pin and this first transmission line; And
One power receiving equipment, comprising:
One control interface, is connected to this transmitting device; And
One treating apparatus, comprising:
One first control module, controls this power receiving equipment and enters one first mode of operation when the first transmission line by this transmitting device receives this first kind voltage; Second transmission line of this first control module when entering the first mode of operation also by this transmitting device exports a mode signal; When this detecting unit receives this mode signal, this switch unit exports a Second Type voltage by the first pin of being connected to this first transmission line and the second pin of being connected to this second transmission line; And
One second control module, when receiving this Second Type voltage, this second control module controls this power receiving equipment and enters one second mode of operation.
A kind of power control system, comprising:
One power-supply unit, comprising:
One transmission interface, comprises one first pin and one second pin;
One processor, comprising:
One detecting unit; And
One switch unit, be a first kind voltage for the voltage transitions exported by a power supply, this switch unit also exports this first kind voltage to one power receiving equipment by this first pin and this first transmission line; When this detecting unit receives the mode signal of this power receiving equipment output, this switch unit exports a Second Type voltage to this power receiving equipment by this first pin and this second pin, enters one second mode of operation to make this power receiving equipment.
A kind of power control method, comprising:
A first kind voltage is exported to power receiving equipment by the first pin of a transmitting device;
This power receiving equipment enters one first mode of operation according to this first kind voltage, also exports second pin of a mode signal to this transmitting device;
Judge whether the mode signal receiving the transmission of this second pin;
When receiving the mode signal of this second pin transmission, export a Second Type voltage by this first pin and the second pin; And
This power receiving equipment enters one second mode of operation according to this Second Type voltage.
By the output voltage changing interface, above-mentioned power control system and method ensure that power receiving equipment normally works, the electric current because flowing through interface so can be avoided to increase and cause the damage of interface.
Accompanying drawing explanation
Fig. 1 is the block scheme of the good embodiment of power control system More of the present invention.
Fig. 2 is the block scheme of the embodiment of transmitting device in Fig. 1.
Fig. 3 is the block scheme of the embodiment of power-supply unit and power receiving equipment in Fig. 1.
Fig. 4 is the block scheme of the embodiment of transmission interface in Fig. 3.
Fig. 5 is the process flow diagram of the good embodiment of power control method More of the present invention.
Main element symbol description
| Power-supply unit | 10 |
| Transmitting device | 20 |
| Power receiving equipment | 30 |
| Detecting unit | 100 |
| Switch unit | 102 |
| Transmission interface | 106 |
| Power supply | 104 |
| First control module | 300 |
| Second control module | 302 |
| Control interface | 304 |
| Controller | 108 |
| Storer | 109 |
| Treating apparatus | 308 |
| Memory storage | 309 |
| First transmission line | 200 |
| Second transmission line | 202 |
| 3rd transmission line | 204 |
| 4th transmission line | 206 |
| First pin | 600 |
| Second pin | 602 |
| 3rd pin | 604 |
| 4th pin | 606 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing and better embodiment, the present invention is described in further detail:
Please refer to Fig. 1, the good embodiment of power control system More of the present invention comprises one and enters the power receiving equipment 30 of different working modes for power-supply unit 10, transmitting device 20 and exporting dissimilar voltage by the dissimilar voltage of this transmitting device 20 reception.In present embodiment, under this power receiving equipment 30 can work in different working modes.
Please refer to Fig. 2, this transmitting device 20 comprises one first transmission line 200,1 second transmission line 202, the 3rd transmission line 204 and one the 4th transmission line 206.Wherein, this first transmission line 200, second transmission line 202, the 3rd transmission line 204 and the 4th transmission line 206 are connected to power pins, forward data transmission pin, reverse data transmission pin and the grounding pin of a USB interface.
Please refer to Fig. 3 and Fig. 4, this power-supply unit 10 comprises processor 108, storer 109, transmission interface 106 and a power supply 104.
This transmission interface 106 is connected to the first end of this transmitting device 20.This transmission interface 106 comprises one first pin 600,1 second pin 602, the 3rd pin 604 and one the 4th pin 606.First pin 600, second pin 602 of this transmission interface 106, the 3rd pin 604 and the 4th pin 606 are connected with the first transmission line 200, second transmission line 202 of this transmitting device 20, the 3rd transmission line 204 and the 4th transmission line 206 respectively.In present embodiment, this transmission interface 106 is a USB interface.
This storer 109 is for storing some instruction codes, and this processor 108 performs these instruction codes.This processor 108 comprises detecting unit 100 and a switch unit 102.
This detecting unit 100 is for obtaining the mode of operation of this power receiving equipment 30 by this transmission interface 106 and this transmitting device 20.
The voltage transitions that this power supply 104 exports is dissimilar voltage (as a first kind voltage or a Second Type voltage) according to the mode of operation of this power receiving equipment 30 by this switch unit 102, is also exported by the first pin 600 of this transmission interface 106 and the first transmission line 200 of this transmitting device 20 by the voltage after conversion.As this switch unit 102 exports first kind voltage (as 5V) to this power receiving equipment 30 by the first pin 600 of this transmission interface 106 and the first transmission line 200 of this transmitting device 20.
This power receiving equipment 30 comprises memory storage 309, treating apparatus 308 and a control interface 304.In present embodiment, voltage required when this power receiving equipment 30 works under different working modes may not be identical.Such as, when this power receiving equipment 30 works under one first mode of operation, this voltage needed for power receiving equipment 30 is 5V; When this power receiving equipment 30 works under one second mode of operation, this voltage needed for power receiving equipment 30 is 10V.
This control interface 304 is connected to the second end of this transmitting device 20.In present embodiment, this control interface 304 is a USB interface.
Some instruction codes are stored, in order to be performed by this treating apparatus 308 in this memory storage 309.This treating apparatus 309 comprises one first control module 300 and one second control module 302.
This first control module 300 judges whether by the first transmission line 200 of this control interface 304 and this transmitting device 20 first kind voltage receiving the output of this power-supply unit 10.When receiving the first kind voltage that this power-supply unit 10 is exported by this first transmission line 200, this first control module 300 controls this power receiving equipment 30 and enters the first mode of operation (as carrying out the initialization of power receiving equipment 20).This first control module 300 also exports a mode signal to this power-supply unit 10 by this control interface 304 and this second transmission line 202.
When this switch unit 102 receives the mode signal of this power receiving equipment 30 output by the second transmission line 202 in this transmitting device 20, this switch unit 102 exports this Second Type voltage (as 10V) to this power receiving equipment 20 by this first transmission line 200.
When receiving this Second Type voltage, the second control module 302 of this power receiving equipment 20 controls this power receiving equipment 30 and enters the second mode of operation (as entering normal operating conditions).In present embodiment, when this power receiving equipment 30 enters the second mode of operation, required power is greater than power required when working in the first mode of operation, so, this power-supply unit 10 meets this power receiving equipment 20 enter power needed for the second mode of operation by improving the voltage exported.
Please refer to Fig. 4, the good embodiment of power control method More of the present invention comprises the steps:
Step S1, the voltage transitions that this power supply 104 provides is first kind voltage by the switch unit 102 of this processor 108, and by the first transmission line 200 of the first pin 600 in this transmission interface 106 and this transmitting device 20 by this first kind voltage transmission to this power receiving equipment 30.
Step S2, controls this power receiving equipment 20 after the first control module 300 of this power receiving equipment 20 receives this first kind voltage and enters the first mode of operation.
Step S3, the first control module 300 of this power receiving equipment 20 also exports a mode signal to this power-supply unit 10 by the second transmission line 202 of this transmitting device 20.
Step S4, the detecting unit 100 of this power-supply unit 10 judges whether to receive this mode signal; When receiving this mode signal, enter step S5; When not receiving this mode signal, continue to judge whether to receive this mode signal.
Step S5, this switch unit 102 exports this Second Type voltage to this power receiving equipment 30 by this first transmission line 200.
Step S6, controls this power receiving equipment 30 after the second control module 302 of this power receiving equipment 30 receives this Second Type voltage and enters the second mode of operation.
By the output voltage increasing interface, above-mentioned power control system and method ensure that power receiving equipment normally works, so can avoid the electric current increase flowing through interface may being made to cause the damage of interface because of the power increase of power receiving equipment.
Claims (9)
1. a power control system, comprising:
One transmitting device, comprises one first transmission line and one second transmission line;
One power-supply unit, comprising:
One transmission interface, comprises the second pin that first pin and being connected to this first transmission line is connected to this second transmission line;
One processor, comprising:
One detecting unit; And
One switch unit, be a first kind voltage for the voltage transitions exported by a power supply, this switch unit also exports this first kind voltage by this first pin and this first transmission line; And
One power receiving equipment, comprising:
One control interface, is connected to this transmitting device; And
One treating apparatus, comprising:
One first control module, controls this power receiving equipment and enters one first mode of operation when the first transmission line by this transmitting device receives this first kind voltage; Second transmission line of this first control module when entering the first mode of operation also by this transmitting device exports a mode signal to this second pin; Wherein when this detecting unit receives this mode signal, this switch unit exports a Second Type voltage by the first pin being connected to this first transmission line; And
One second control module, when receiving this Second Type voltage, this second control module controls this power receiving equipment and enters one second mode of operation.
2. power control system as claimed in claim 1, it is characterized in that: this transmission interface is a USB interface, this first pin is the power pins of USB interface; This second pin is the forward data transmission pin of USB interface.
3. power control system as claimed in claim 1, it is characterized in that: this transmission interface is a USB interface, this first pin is the power pins of USB interface; This second pin is the reverse data transmission pin of USB interface.
4. a power control system, comprising:
One power-supply unit, comprising:
One transmission interface, comprises one first pin and one second pin;
One processor, comprising:
One detecting unit; And
One switch unit, be a first kind voltage for the voltage transitions exported by a power supply, this switch unit also exports this first kind voltage to one power receiving equipment by this first pin and this first transmission line; When this detecting unit receives the mode signal of this power receiving equipment output, this switch unit exports a Second Type voltage to this power receiving equipment by this first pin, enters one second mode of operation to make this power receiving equipment.
5. power control system as claimed in claim 4, it is characterized in that: this transmission interface is a USB interface, this first pin is the power pins of USB interface; This second pin is the forward data transmission pin of USB interface.
6. power control system as claimed in claim 4, it is characterized in that: this transmission interface is a USB interface, this first pin is the power pins of USB interface; This second pin is the reverse data transmission pin of USB interface.
7. a power control method, comprising:
A first kind voltage is exported to power receiving equipment by the first pin of a transmitting device;
This power receiving equipment enters one first mode of operation according to this first kind voltage, also exports second pin of a mode signal to this transmitting device;
Judge whether the mode signal receiving the transmission of this second pin;
When receiving the mode signal of this second pin transmission, export a Second Type voltage by this first pin; And
This power receiving equipment enters one second mode of operation according to this Second Type voltage.
8. power control method as claimed in claim 7, it is characterized in that: this transmission interface is a USB interface, this first pin is the power pins of USB interface; This second pin is the forward data transmission pin of USB interface.
9. power control method as claimed in claim 7, it is characterized in that: this transmission interface is a USB interface, this first pin is the power pins of USB interface; This second pin is the reverse data transmission pin of USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137503.3A CN104978002A (en) | 2014-04-08 | 2014-04-08 | Power supply control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137503.3A CN104978002A (en) | 2014-04-08 | 2014-04-08 | Power supply control system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104978002A true CN104978002A (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410137503.3A Pending CN104978002A (en) | 2014-04-08 | 2014-04-08 | Power supply control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104978002A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105975039A (en) * | 2016-04-29 | 2016-09-28 | 乐视控股（北京）有限公司 | Method and device for controlling power supply of Type-C interface, and electronic equipment |
| CN106209389A (en) * | 2016-08-31 | 2016-12-07 | 博为科技有限公司 | Supplying communication system based on G.x agreement and communication means |
| CN107566131A (en) * | 2017-08-29 | 2018-01-09 | 倪严辅 | PSE multichannel automatic switchover chips |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304499A (en) * | 1999-05-14 | 2001-07-18 | 精工爱普生株式会社 | Electronic equipment and method of controlling electronic equipment |
| CN1900861A (en) * | 2005-07-21 | 2007-01-24 | 三星电子株式会社 | Electronic equipment system and control method thereof |
| US8185759B1 (en) * | 2008-11-06 | 2012-05-22 | Smsc Holdings S.A.R.L. | Methods and systems for interfacing bus powered devices with host devices providing limited power levels |
-
2014
- 2014-04-08 CN CN201410137503.3A patent/CN104978002A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304499A (en) * | 1999-05-14 | 2001-07-18 | 精工爱普生株式会社 | Electronic equipment and method of controlling electronic equipment |
| CN1900861A (en) * | 2005-07-21 | 2007-01-24 | 三星电子株式会社 | Electronic equipment system and control method thereof |
| US8185759B1 (en) * | 2008-11-06 | 2012-05-22 | Smsc Holdings S.A.R.L. | Methods and systems for interfacing bus powered devices with host devices providing limited power levels |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105975039A (en) * | 2016-04-29 | 2016-09-28 | 乐视控股（北京）有限公司 | Method and device for controlling power supply of Type-C interface, and electronic equipment |
| CN106209389A (en) * | 2016-08-31 | 2016-12-07 | 博为科技有限公司 | Supplying communication system based on G.x agreement and communication means |
| CN106209389B (en) * | 2016-08-31 | 2023-05-02 | 博为科技有限公司 | Power supply communication system and communication method based on G.x protocol |
| CN107566131A (en) * | 2017-08-29 | 2018-01-09 | 倪严辅 | PSE multichannel automatic switchover chips |
| CN107566131B (en) * | 2017-08-29 | 2020-07-10 | 倪严辅 | PSE multi-path automatic switching chip |
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Application publication date: 20151014 |
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