CN102723749A - Power supply circuit of alternately used terminals - Google Patents
Power supply circuit of alternately used terminals Download PDFInfo
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- CN102723749A CN102723749A CN2011100792134A CN201110079213A CN102723749A CN 102723749 A CN102723749 A CN 102723749A CN 2011100792134 A CN2011100792134 A CN 2011100792134A CN 201110079213 A CN201110079213 A CN 201110079213A CN 102723749 A CN102723749 A CN 102723749A
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Abstract
The present invention relates to a power supply circuit of alternately used terminals. The power supply circuit comprises a first power supply, a second power supply, a switch, a first terminal, a second terminal, and a plurality of diodes. The first power supply and the second power supply are connected with the switch. A first output terminal of the switch is connected with an anode of a diode. A cathode of the diode is connected with the first terminal. A second output terminal of the switch is connected with a cathode of another diode through a cable. The anode of the diode is connected with the first terminal. The first output terminal of the switch is connected with a cathode of a diode through the cable. An anode of the diode is connected with the second terminal. The second output terminal of the switch is connected with an anode of another diode through the cable. A cathode of the diode is connected with the second terminal. Compared with the prior art, the circuit has the advantages of simple structure, few used elements, low production cost of the whole circuit and the like.
Description
Technical field
The present invention relates to a kind of power supply circuits, especially relate to the power supply circuits at the terminal that is used alternatingly.
Background technology
Hang the terminal of two alternations on same cable, the required power supply in two terminals different (is 24 volts of direct currents, another is 220 volts of direct currents).It is harmless to two terminals to require two kinds of power supplys on a cable, to supply power.Therefore need a kind of circuit of design to solve this problem.
Summary of the invention
The object of the invention is exactly to provide a kind of element simple in structure, that adopt few in order to overcome the defective that above-mentioned prior art exists, and the power supply circuits at the low terminal that is used alternatingly of the production cost of entire circuit.
The object of the invention can be realized through following technical scheme: the power supply circuits at the terminal that is used alternatingly; It is characterized in that; These power supply circuits comprise first power supply, second source, switch, first terminal, second terminal, a plurality of diode, and described switch comprises first output, second output, and described first power supply, second source are connected with switch; First output of described switch is connected with the positive pole of a diode through cable; This diode negative pole be connected with first terminal, second output of described switch is connected with the negative pole of another diode through cable, the positive pole of this diode is connected with first terminal; First output of described switch is connected with the negative pole of a diode through cable; This diode positive pole be connected with second terminal, second output of described switch is connected with the positive pole of another diode through cable, the negative pole of this diode is connected with second terminal.
Respectively corresponding two inputs of first output of described switch and second output; The positive pole of described first power supply, the negative pole of second source are connected with pairing two inputs of first output respectively, and the negative pole of described first power supply, the positive pole of second source are connected with pairing two inputs of second output respectively.
Described switch is a relay switch.
Compared with prior art, circuit structure of the present invention element simple, that adopt is few, and the production cost of entire circuit is low, and can not cause the damage at terminal because of the variation of voltage.
Description of drawings
Fig. 1 is a circuit connection structure sketch map of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
As shown in Figure 1, the power supply circuits at the terminal that is used alternatingly, these power supply circuits comprise first power supply 1, second source 2, switch 3, first terminal 4, second terminal 5, four diode D1, D2, D3, D4.Switch 3 comprises first output 6, second output 7.First output 6 of switch 3 and second output, 7 respectively corresponding two inputs.The negative pole of the positive pole of first power supply 1, second source 2 is connected with first output, 6 pairing two inputs respectively, and the positive pole of the negative pole of first power supply 1, second source 2 is connected with second output, 7 pairing two inputs respectively.First output 6 of switch 3 is connected with the positive pole of a diode D1 through cable, this diode D1 negative pole be connected with first terminal 4.Second output 7 of switch 3 is connected with the negative pole of another diode D2 through cable, and the positive pole of this diode D2 is connected with first terminal 4.First output 6 of switch 3 is connected with the negative pole of a diode D3 through cable, and the positive pole of this diode D3 is connected with second terminal 5.Second output 7 of switch 3 is connected with the positive pole of another diode D4 through cable, this diode D4 negative pole be connected with second terminal 5.First power supply 1 is direct current 24V, and second source is direct current 220V.First terminal is the 220V terminal, and second terminal is the 24V terminal.Switch is a relay switch.When " DC220V " terminal was supplied power, relay was delivered to " DC220V " power supply on the cable: " DC220V " terminal obtains the DC220V power supply through D1, D2, and " DC24V " terminal can not obtain the DC220V power supply because of D3, D4 blocking-up.When " DC24V " terminal was supplied power, relay was delivered to " DC24V " power supply on the cable: " DC24V " terminal obtains the DC24V power supply through D3, D4, and " DC220V " terminal can not obtain the DC24V power supply because of D1, D2 blocking-up.
Claims (3)
1. the power supply circuits at the terminal that is used alternatingly; It is characterized in that; These power supply circuits comprise first power supply, second source, switch, first terminal, second terminal, a plurality of diode, and described switch comprises first output, second output, and described first power supply, second source are connected with switch; First output of described switch is connected with the positive pole of a diode through cable; This diode negative pole be connected with first terminal, second output of described switch is connected with the negative pole of another diode through cable, the positive pole of this diode is connected with first terminal; First output of described switch is connected with the negative pole of a diode through cable; The positive pole of this diode is connected with second terminal, and second output of described switch is connected with the positive pole of another diode through cable, this diode negative pole be connected with second terminal.
2. the power supply circuits at the terminal that is used alternatingly according to claim 1; It is characterized in that; Respectively corresponding two inputs of first output of described switch and second output; The positive pole of described first power supply, the negative pole of second source are connected with pairing two inputs of first output respectively, and the negative pole of described first power supply, the positive pole of second source are connected with pairing two inputs of second output respectively.
3. the power supply circuits at the terminal that is used alternatingly according to claim 1 and 2 is characterized in that, described switch is a relay switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100792134A CN102723749A (en) | 2011-03-30 | 2011-03-30 | Power supply circuit of alternately used terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100792134A CN102723749A (en) | 2011-03-30 | 2011-03-30 | Power supply circuit of alternately used terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723749A true CN102723749A (en) | 2012-10-10 |
Family
ID=46949447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100792134A Pending CN102723749A (en) | 2011-03-30 | 2011-03-30 | Power supply circuit of alternately used terminals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723749A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06327163A (en) * | 1993-05-13 | 1994-11-25 | Canon Inc | Electronic apparatus |
| CN2558137Y (en) * | 2002-05-24 | 2003-06-25 | 江苏中意汽车有限公司 | 12V, 24V dc double circuit and ac 220V double circuit power supply device for IVECO car |
| CN201319574Y (en) * | 2008-12-15 | 2009-09-30 | 北京丰隆技术有限公司 | DC motor power supply |
| US7800249B1 (en) * | 2009-06-03 | 2010-09-21 | Well Shin Technology Co., Ltd. | Power supply system |
-
2011
- 2011-03-30 CN CN2011100792134A patent/CN102723749A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06327163A (en) * | 1993-05-13 | 1994-11-25 | Canon Inc | Electronic apparatus |
| CN2558137Y (en) * | 2002-05-24 | 2003-06-25 | 江苏中意汽车有限公司 | 12V, 24V dc double circuit and ac 220V double circuit power supply device for IVECO car |
| CN201319574Y (en) * | 2008-12-15 | 2009-09-30 | 北京丰隆技术有限公司 | DC motor power supply |
| US7800249B1 (en) * | 2009-06-03 | 2010-09-21 | Well Shin Technology Co., Ltd. | Power supply system |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |