CN102830304A - Multi-power-supply input device - Google Patents
Multi-power-supply input device Download PDFInfo
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- CN102830304A CN102830304A CN2012102846010A CN201210284601A CN102830304A CN 102830304 A CN102830304 A CN 102830304A CN 2012102846010 A CN2012102846010 A CN 2012102846010A CN 201210284601 A CN201210284601 A CN 201210284601A CN 102830304 A CN102830304 A CN 102830304A
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- input
- detecting pin
- pin position
- input terminal
- transformer
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Abstract
The invention discloses a multi-power-supply input device, which comprises a first input terminal, a second input terminal, a processing unit and a switch circuit. The first input terminal is used for socketing an alternative-current transformer or a battery. The second input terminal is used for socketing a direct-current power supply. The processing unit is provided with a first detection pin and a second detection pin. The switch circuit is coupled with the first detection pin, the second detection pin, the first input terminal and the second input terminal. When the first input terminal is socketed, the switch circuit is turned on, so that the processing unit judges whether the first input terminal is in socket connection with the alternative-current transformer or the battery or not according to the voltage level of the first detection pin and the second detection pin. When the second input terminal is in socket connection with the direct-current power supply, the switch circuit is closed so as to electrically isolate the first input terminal. The multi-power-supply input device can identify and automatically detect the input of different power supplies.
Description
Technical field
The invention relates to a kind of many power supplys input media, relate in particular to a kind of can distinguishing and many power supplys input media of the different power supply of Auto-Sensing input.
Background technology
Electronic installation on the market regular meeting in the use runs into the puzzlement that does not have electricity; Even or have the power lead that various heaviness twines the people again; But relate to problem such as different voltages, different socket and distinct interface and inapplicable, therefore meet with the not enough awkward situation of power supply again and again.
Summary of the invention
Therefore, one of the object of the invention is to provide a kind of many power supplys input media, can distinguish the also different power supply input of Auto-Sensing.
According to the first aspect of this exposure, a kind of many power supplys input media is proposed, comprise first input end, second input terminal, processing unit and on-off circuit.First input end is in order to grafting AC transformer or battery.Second input terminal is in order to the grafting direct supply.Processing unit has the first detecting pin position and the second detecting pin position.On-off circuit couples the first detecting pin position, the second detecting pin position, first input end and second input terminal.Wherein, when first input end was pegged graft, on-off circuit was opened, and made processing unit judge sub-grafting AC transformer of first input end or battery according to the voltage quasi position of the first detecting pin position and the second detecting pin position.Wherein, when the second input terminal grafting direct supply, on-off circuit cuts out with electrical isolation first input end.
As optional technical scheme, this first input end is approaching with this second input terminal, makes when this second input terminal is pegged graft by this dc source, and this dc source at least partly blocks this first input end.
As optional technical scheme, this first input end is approaching with this second input terminal, and when making this first input end by this AC transformer or the grafting of this battery, this AC transformer or this battery at least partly block this second input terminal.
As optional technical scheme, this first detecting pin position and this second detecting pin position are general input and output pin position.
As optional technical scheme, when this first input end was not pegged graft with this second input terminal, this first detecting pin position and this second detecting pin position were designated as the accurate position of high voltage.
As optional technical scheme; This on-off circuit comprises: transistor, have first end, first control end and second end, and first end is coupled to this first input end and this first detecting pin position; First control end is coupled to this first input end, and second end is coupled to a ground voltage; And switch, having the 3rd end, the 4th end and second control end, the 3rd end is coupled to this first input end, and the 4th end is coupled to this second input terminal and system end, and second control end is coupled to this first detecting pin position.
As optional technical scheme, this AC transformer has the grounding leg position; When this second input terminal was pegged graft this direct supply, this switch was closed in the accurate position of this high voltage of this first detecting pin position, and this direct supply is electrically connected to this system end; When this first input end is pegged graft this battery; This transistor turns; This first detecting pin position transfers the accurate position of low-voltage to, this switch opens, and this battery is electrically connected to this system end; Accurate of this high voltage is kept in this second detecting pin position, and this processing unit is judged this this battery of first input end grafting according to the voltage quasi position of this first detecting pin position and this second detecting pin position; When this first input end is pegged graft this AC transformer; This transistor turns; This first detecting pin position transfers the accurate position of this low-voltage to, this switch opens, and this AC transformer is electrically connected to this system end; This second detecting pin position be electrically connected to this AC transformer this grounding leg position and transfer the accurate position of this low-voltage to, this processing unit is judged this this AC transformer of first input end grafting according to this first detecting pin position and the voltage quasi position of this second detecting pin position
Compared with prior art, many power supplys input media of the present invention utilizes on-off circuit and mechanism to interfere, so be able to distinguish the also different power supply input of Auto-Sensing.
Can graphicly further be understood by following detailed Description Of The Invention and appended about advantage of the present invention and spirit.
Description of drawings
Fig. 1 illustrates the synoptic diagram according to many power supplys input media of an embodiment.
Fig. 2 illustrates the partial structure synoptic diagram according to many power supplys input media of an embodiment.
Fig. 3 illustrates the circuit diagram according to the on-off circuit of an embodiment.
Embodiment
Many power supplys input media proposed by the invention utilizes on-off circuit and mechanism to interfere, so be able to distinguish the also different power supply input of Auto-Sensing.
Please with reference to Fig. 1, it illustrates the synoptic diagram according to many power supplys input media of an embodiment.Many power supplys input media 100 comprises the sub-J1 of first input end, the second input terminal J2, processing unit 110 and on-off circuit 120.The sub-J1 of first input end is in order to grafting AC transformer (AC adaptor) or battery.The second input terminal J2 is in order to the grafting direct supply.Processing unit 110 has the first detecting pin position P1 and the second detecting pin position P2.The first detecting pin position P1 and the second detecting pin position P2 for example are general input and output (general purposeI/O, GPIO) pin positions.On-off circuit 120 couples the first detecting pin position P1, the second detecting pin position P2, the sub-J1 of first input end and the second input terminal J 2.
The sub-J1 of first input end and the second input terminal J2 are near configuration, and be as shown in Figure 2 but be not limited thereto, and Fig. 2 illustrates the partial structure synoptic diagram according to many power supplys input media of an embodiment.In Fig. 2, when the second input terminal J2 is pegged graft by direct supply, to interfere based on mechanism, direct supply can block or at least partly block the sub-J1 of first input end, makes the sub-J1 of first input end to be pegged graft by AC transformer or battery; When the sub-J1 of first input end is pegged graft by AC transformer or battery, to interfere based on mechanism, AC transformer or battery can block or at least partly block the second input terminal J2, make the second input terminal J2 to be pegged graft by direct supply.In addition, when the sub-J1 of first input end and the second input terminal J2 were pegged graft, the first detecting pin position P1 and the second detecting pin position P2 were designated as the accurate High of high voltage.
In many power supplys input media 100; When the sub-J1 of first input end is pegged graft; On-off circuit 120 is opened, and makes processing unit 110 judge first input end J1 grafting AC transformer or battery according to the voltage quasi position of the first detecting pin position P1 and the second detecting pin position P2.When the second input terminal J2 grafting direct supply, on-off circuit 120 cuts out with the sub-J1 of electrical isolation first input end.Please with reference to Fig. 3, it illustrates the circuit diagram according to the on-off circuit of an embodiment.On-off circuit 120 comprises transistor Q and switch SW.Transistor Q has first end, first control end and second end, and first end is coupled to the sub-J1 of first input end and the first detecting pin position P1, and first control end is coupled to the sub-J1 of first input end, and second end is coupled to ground voltage GND.Switch SW has the 3rd end, the 4th end and second control end, and the 3rd end is coupled to the sub-J1 of first input end, and the 4th end is coupled to the second input terminal J2 and system end S, and second control end is coupled to the first detecting pin position P1.
When the second input terminal J2 grafting direct supply, do not peg graft any power source input of the sub-J1 of first input end.At this moment, the accurate position of the high voltage off switch SW of the first detecting pin position P1 is with the sub-J1 of electrical isolation first input end, and direct supply sees through the second input terminal J2 and is electrically connected to system end S.Thus, the total system of many power supplys input media 100 just can Auto-Sensing to and distinguish that present power supply is input as direct supply.
When the sub-J1 grafting of first input end battery, do not peg graft any power source input of the second input terminal J2.At this moment, transistor Q conducting, the first detecting pin position P1 transfers the accurate position of low-voltage to, and switch SW is opened, and battery sees through the sub-J1 of first input end and is electrically connected to system end S, and the second detecting pin position P2 keeps the accurate position of high voltage.Processing unit 110 judges that with the voltage quasi position (the accurate position of high voltage) of the second detecting pin position P2 power supply that the sub-J1 of first input end is pegged graft is input as battery according to the voltage quasi position (the accurate position of low-voltage) of the first detecting pin position P1.Thus, the total system of many power supplys input media 100 just can Auto-Sensing to and distinguish that present power supply is input as battery.
AC transformer has the grounding leg position in fact.When the sub-J1 grafting of first input end AC transformer, do not peg graft any power source input of the second input terminal J2.At this moment; Transistor Q conducting, the first detecting pin position P1 transfers the accurate position of low-voltage to, and switch SW is opened; AC transformer sees through the sub-J1 of first input end and is electrically connected to system end S, and the second detecting pin position P2 is electrically connected to the grounding leg position of AC transformer and transfers the accurate position of low-voltage to.Processing unit 110 judges that with the voltage quasi position (the accurate position of low-voltage) of the second detecting pin position P2 power supply that the sub-J1 of first input end is pegged graft is input as AC transformer according to the voltage quasi position (the accurate position of low-voltage) of the first detecting pin position P1.Thus, the total system of many power supplys input media 100 just can Auto-Sensing to and distinguish that present power supply is input as AC transformer.
In fact; The processing unit 110 of many power supplys input media 100 can be detected the voltage quasi position Auto-Sensing of pin position P2 and distinguish that present power supply is input as direct supply, battery or AC transformer according to the first detecting pin position P1 and second; As shown in table 1, but be not limited to this.
Table 1
| The first detecting pin position P1 | The second detecting pin position P2 | The power supply input |
| The accurate position of low-voltage | The accurate position of low-voltage | AC transformer |
| The accurate position of low-voltage | The accurate position of high voltage | Battery |
| The accurate position of high voltage | The accurate position of high voltage | Direct supply |
Many power supplys input media that this exposure the foregoing description is disclosed utilizes simple mechanism to interfere, and utilizes on-off circuit to judge the voltage quasi position of different detecting pin position, promptly can distinguish the also different power supply input of Auto-Sensing.
In sum, though the present invention discloses as above with a plurality of embodiment, so it is not in order to limit the present invention.Have common knowledge the knowledgeable in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, when doing various changes and retouching.Therefore, protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (7)
1. power supply input media more than a kind is characterized in that comprising:
First input end is in order to grafting AC transformer or battery;
Second input terminal is in order to the grafting direct supply;
Processing unit has the first detecting pin position and the second detecting pin position; And
On-off circuit couples this first detecting pin position, this second detecting pin position, this first input end and this second input terminal;
Wherein, when this first input end quilt was pegged graft, this on-off circuit was opened, and made this processing unit judge sub this AC transformer or this battery of pegging graft of this first input end according to the voltage quasi position of this first detecting pin position and this second detecting pin position; When this second input terminal was pegged graft this direct supply, this on-off circuit cut out with this first input end of electrical isolation.
2. many power supplys input media as claimed in claim 1 is characterized in that this first input end is approaching with this second input terminal, makes when this second input terminal is pegged graft by this direct supply that this direct supply at least partly blocks this first input end.
3. many power supplys input media as claimed in claim 1; It is characterized in that this first input end is approaching with this second input terminal; When making this first input end by this AC transformer or the grafting of this battery, this AC transformer or this battery at least partly block this second input terminal.
4. many power supplys input media as claimed in claim 1 is characterized in that this first detecting pin position and this second detecting pin position are general input and output pin position.
5. many power supplys input media as claimed in claim 1 is characterized in that when this first input end is not pegged graft with this second input terminal, and this first detecting pin position and this second detecting pin position are designated as the accurate position of high voltage.
6. many power supplys input media as claimed in claim 5 is characterized in that this on-off circuit comprises:
Transistor has first end, first control end and second end, and first end is coupled to this first input end and this first detecting pin position, and first control end is coupled to this first input end, and second end is coupled to ground voltage; And
Switch has the 3rd end, the 4th end and second control end, and the 3rd end is coupled to this first input end, and the 4th end is coupled to this second input terminal and system end, and second control end is coupled to this first detecting pin position.
7. many power supplys input media as claimed in claim 6 is characterized in that this AC transformer has the grounding leg position;
When this second input terminal was pegged graft this direct supply, this switch was closed in the accurate position of high voltage of this first detecting pin position, and this direct supply is electrically connected to this system end;
When this first input end is pegged graft this battery; This transistor turns; This first detecting pin position transfers the accurate position of low-voltage to, this switch opens, and this battery is electrically connected to this system end; Accurate of high voltage is kept in this second detecting pin position, and this processing unit is judged this this battery of first input end grafting according to the voltage quasi position of this first detecting pin position and this second detecting pin position;
When this first input end is pegged graft this AC transformer; This transistor turns; This first detecting pin position transfers the accurate position of low-voltage to, this switch opens, and this AC transformer is electrically connected to this system end; This second detecting pin position is electrically connected to this grounding leg position of this AC transformer and transfers accurate of low-voltage to, and this processing unit is judged this this AC transformer of first input end grafting according to the voltage quasi position of this first detecting pin position and this second detecting pin position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284601.0A CN102830304B (en) | 2012-08-10 | 2012-08-10 | Many power input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284601.0A CN102830304B (en) | 2012-08-10 | 2012-08-10 | Many power input |
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| CN102830304A true CN102830304A (en) | 2012-12-19 |
| CN102830304B CN102830304B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210284601.0A Expired - Fee Related CN102830304B (en) | 2012-08-10 | 2012-08-10 | Many power input |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108833858A (en) * | 2018-03-29 | 2018-11-16 | 中磊电子股份有限公司 | Video door bell and button system |
| CN114137266A (en) * | 2021-10-11 | 2022-03-04 | 昆山丘钛微电子科技股份有限公司 | Separable power supply circuit board, test tool and adapter plate |
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| US4315163A (en) * | 1980-09-16 | 1982-02-09 | Frank Bienville | Multipower electrical system for supplying electrical energy to a house or the like |
| JP2000243842A (en) * | 1999-02-19 | 2000-09-08 | Nec Corp | Multi-power supply protective circuit |
| CN2768281Y (en) * | 2004-11-20 | 2006-03-29 | 郴州市东塘电气设备有限公司 | Intelligent dual power automatic switching box |
| CN1853328A (en) * | 2003-08-15 | 2006-10-25 | 美国能量变换公司 | Uninterruptible power supply |
| CN201107346Y (en) * | 2007-10-22 | 2008-08-27 | 北京机电院高技术股份有限公司 | Multifunctional crest voltage meter dual power supply apparatus |
| CN101471681A (en) * | 2007-12-28 | 2009-07-01 | 希姆通信息技术（上海）有限公司 | Wireless communication module and automatic switchover method of double power supply thereof |
| CN101714778A (en) * | 2009-11-22 | 2010-05-26 | 苏州佳世达电通有限公司 | Power supply switching device |
| CN102104263A (en) * | 2009-12-17 | 2011-06-22 | 台达电子工业股份有限公司 | High voltage direct current uninterruptible power supply system with multiple input power sources |
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2012
- 2012-08-10 CN CN201210284601.0A patent/CN102830304B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4315163A (en) * | 1980-09-16 | 1982-02-09 | Frank Bienville | Multipower electrical system for supplying electrical energy to a house or the like |
| JP2000243842A (en) * | 1999-02-19 | 2000-09-08 | Nec Corp | Multi-power supply protective circuit |
| CN1853328A (en) * | 2003-08-15 | 2006-10-25 | 美国能量变换公司 | Uninterruptible power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108833858A (en) * | 2018-03-29 | 2018-11-16 | 中磊电子股份有限公司 | Video door bell and button system |
| US10805536B2 (en) | 2018-03-29 | 2020-10-13 | Sercomm Corporation | Video doorbell system compatible with various accessories |
| CN114137266A (en) * | 2021-10-11 | 2022-03-04 | 昆山丘钛微电子科技股份有限公司 | Separable power supply circuit board, test tool and adapter plate |
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| Publication number | Publication date |
|---|---|
| CN102830304B (en) | 2015-09-02 |
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