CN101615790A - Power supply preferred circuit and method for optimizing in the three-way power - Google Patents
Power supply preferred circuit and method for optimizing in the three-way power Download PDFInfo
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- CN101615790A CN101615790A CN200810154157A CN200810154157A CN101615790A CN 101615790 A CN101615790 A CN 101615790A CN 200810154157 A CN200810154157 A CN 200810154157A CN 200810154157 A CN200810154157 A CN 200810154157A CN 101615790 A CN101615790 A CN 101615790A
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Abstract
The present invention relates to power supply preferred circuit and method for optimizing in a kind of three-way power.Its three-way power input terminal connects the former limit of three voltage transformers respectively; The secondary of three voltage transformers connects the single-chip microcomputer input port; The three-way power input terminal connects two binode relays respectively.One utmost point of two nodes in two binode relays connects the two ends of lead-out terminal of the present invention respectively; Two output ports of single-chip microcomputer connect the anode of two optocoupler photodiodes, the minus earth of two photodiodes respectively by resistance; The collector electrode of two optocoupler outputs meets VCC, and emitter is by the coil and the grounding through resistance of binode relay.The present invention is owing to adopt Single-chip Controlling, and the precision of selected power supply can freely be adjusted and select suitable voltage range of choice, realizes intelligent control.The power consumption equipment of its end opening can both have only power supply to provide in any case, has improved the reliability of power consumption equipment greatly, guarantees its high intelligence, high-precision realization.
Description
Technical field
The invention belongs to a kind of power supply preferred circuit, particularly relate to power supply preferred circuit and method for optimizing in a kind of three-way power.
Background technology
Along with extensively being applied to rapidly in the low-voltage electrical apparatus field of electronic technology, intelligent, high accuracy, the electric equipment products of high efficiency type are more and more general, become the main electric equipment of present society.Yet at present more known be: electric equipment products are intelligent more, and precision is high more, and its requirement to the quality of self working power is also high more.Have only the high stability of self working power, high-quality is guaranteed, and could realize its high intelligence, high-precision characteristics, and also its power supply stability of the high more electric equipment products of intelligent degree is outstanding more to the influence of himself.Yet now a lot of power consumption equipments do not have the stability of ability assurance self power supply, and therefore accuracy, the stability to its performance has produced certain influence.
Summary of the invention
The present invention provides a kind of power supply preferred circuit for solving the technical problem that exists in the known technology, particularly relates to power supply preferred circuit and method for optimizing in a kind of three-way power.
The present invention for the technical scheme of the power supply preferred circuit in the three-way power that solves the technical problem that exists in the known technology and take is: it includes first, second and third road power input terminal, also includes a single-chip microcomputer, first, second and third voltage transformer, first and second binode relay and first and second optocoupler; Described first, second and third road power input terminal is connected respectively to the former limit of described first, second and third voltage transformer; End in the secondary of first, second and third voltage transformer connects the end in three input ports of described single-chip microcomputer respectively, and the other end of these three voltage transformer secondary connects the 4th input port of single-chip microcomputer after being connected; One end of described first and second road power input terminal connects the end of two of first nodes of the first binode relay in can selecting extremely respectively, and the other end of this two-way power input terminal connects two of the first binode relay Section Point end in can selecting extremely respectively; Another utmost point of first and second node of the described first binode relay connects two ends that can select the utmost point of described second first and second node of binode relay respectively; Two of described second first and second node of binode relay can select the other end of the utmost point to connect a end in two input terminals of described Third Road power supply respectively; Another utmost point of first and second node of the described second binode relay connects the two ends of this optimization power supply circuit output end respectively; An output port of single-chip microcomputer connects the anode of the photodiode of first optocoupler by first resistance, and another output port of single-chip microcomputer connects the anode of the photodiode of second optocoupler by second resistance; The minus earth of the photodiode of described first and second optocoupler; The collector electrode of described first and second optocoupler output meets VCC, the emitter of the described first optocoupler output is by the coil and the 3rd grounding through resistance of the first binode relay, and the emitter of the described second optocoupler output is by the coil and the 4th grounding through resistance of the second binode relay.
The present invention for the technical scheme of the control method of the power supply preferred circuit in the three-way power that solves the technical problem that exists in the known technology and take is: finished by following steps: after single-chip microcomputer is started working, carry out initialization earlier, then
(1) setting voltage scope;
(2) acquisition order three-way power voltage signal;
(3) judge first via power source voltage value whether in setting range, if for being, control relay K1 then, all not adhesives of K2 select first via power supply to be connected to output, and program forwards step (2) to;
(4) if for not, then judge the second tunnel power source voltage whether in setting range, if for being, then control relay K1 adhesive, relay K 2 not adhesives select the second road power supply to be connected to output, and program forwards step (2) to;
(5) if for not, then judge the Third Road power source voltage whether in setting range, if for being, then control relay K2 adhesive, selection Third Road power supply is connected to output, and program forwards step (2) to;
(6) if be that then single-chip microcomputer is not lighted alarm lamp LED, the prompting three-way power does not all meet current requirement, EP (end of program).
Advantage and good effect that the present invention has are: owing to adopt Single-chip Controlling, the precision of selected power supply can freely be adjusted, and to select suitable voltage range of choice, realizes intelligent control.The power consumption equipment of its end opening can both have only power supply to provide in any case, has improved the reliability of power consumption equipment greatly, guarantees its high intelligence, high-precision realization.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a control method flow chart of the present invention.
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
As shown in Figure 1, first, second and third road power input terminal 1A, 1N, 2A, 2N, 3A, 3N are connected respectively to the former limit of first, second and third voltage transformer D1, D2, D3; End in the secondary of first, second and third voltage transformer D1, D2, D3 connects the end in three inputs of single-chip microcomputer respectively, connects the 4th input port of single-chip microcomputer after the other end of three voltage transformer D1, D2, D3 secondary is connected; The 1A of first and second road power input terminal, 2A one end connect the end in two inputs of binode relay K 1 first node respectively, and the 1N of power input terminal, 2N one end connect the end in two inputs of binode relay K 1 Section Point respectively; The output of first and second node of binode relay K 1 connects the end in two inputs of binode relay K 2 first and second nodes respectively; The other end of two inputs of binode relay K 2 first and second nodes connects the end among Third Road power supply two input terminal A3, N3 respectively; The output of first and second node of binode relay K 2 meets ends A, the N of this optimization power supply circuit output end respectively; An output port of single-chip microcomputer connects the anode of the photodiode of optocoupler U1 by resistance R 2, and another output port of single-chip microcomputer connects the anode of the photodiode of optocoupler U2 by resistance R 1; The minus earth of the photodiode of optocoupler U1, U2; The collector electrode of optocoupler U1, U2 output meets VCC, and the emitter of optocoupler U1 output is by the coil and resistance R 3 ground connection of binode relay K 1, and the emitter of optocoupler U2 output is by the coil and resistance R 4 ground connection of binode relay K 2.
As shown in Figure 2, control is finished according to the following steps, and single-chip microcomputer carries out initialization earlier, then:
(1) configures the voltage range of selected approval;
(2), convert the voltage value signal of three-way power to digital signal by digital-to-analogue conversion by first, second and third acquisition order three-way power voltage signal;
(3) judge that earlier first via power source voltage value is whether in setting range, if first via power source voltage is in setting range, Single-chip Controlling relay K 1, not adhesive of K2, select first via power supply to be connected to output, program forwards the voltage signal that step (2) is gathered three-way power to, re-executes;
(4) if first via power source voltage not in setting range, judge that then the second tunnel power source voltage is whether in setting range, if the second tunnel power source voltage is in setting range, then Single-chip Controlling relay K 1 adhesive, relay K 2 not adhesives, select the second road power supply to be connected to output, program forwards the voltage signal that step (2) is gathered three-way power to, re-executes;
(5) if the second tunnel power source voltage not in setting range, judge that then the Third Road power source voltage is whether in setting range, if the Third Road power source voltage is in setting range, then Single-chip Controlling relay K 2 adhesives, select the Third Road power supply to be connected to output, program forwards the voltage signal that step (2) is gathered three-way power to, re-executes;
(6) if the Third Road power source voltage also not in setting range, then single-chip microcomputer is lighted alarm lamp LED, the prompting three-way power does not all meet current requirement, termination routine.
Claims (2)
1. the power supply preferred circuit in the three-way power, it includes first, second and third road power input terminal, it is characterized in that: also include a single-chip microcomputer, first, second and third voltage transformer, first and second binode relay and first and second optocoupler; Described first, second and third road power input terminal is connected respectively to the former limit of described first, second and third voltage transformer; End in the secondary of first, second and third voltage transformer connects the end in three input ports of described single-chip microcomputer respectively, and the other end of these three voltage transformer secondary connects the 4th input port of single-chip microcomputer after being connected; One end of described first and second road power input terminal connects the end of two of first nodes of the first binode relay in can selecting extremely respectively, and the other end of this two-way power input terminal connects two of the first binode relay Section Point end in can selecting extremely respectively; Another utmost point of first and second node of the described first binode relay connects two ends that can select the utmost point of described second first and second node of binode relay respectively; Two of described second first and second node of binode relay can select the other end of the utmost point to connect a end in two input terminals of described Third Road power supply respectively; Another utmost point of first and second node of the described second binode relay connects the two ends of this optimization power supply circuit output end respectively; An output port of single-chip microcomputer connects the anode of the photodiode of first optocoupler by first resistance, and another output port of single-chip microcomputer connects the anode of the photodiode of second optocoupler by second resistance; The minus earth of the photodiode of described first and second optocoupler; The collector electrode of described first and second optocoupler output meets VCC, the emitter of the described first optocoupler output is by the coil and the 3rd grounding through resistance of the first binode relay, and the emitter of the described second optocoupler output is by the coil and the 4th grounding through resistance of the second binode relay.
2. the method for optimizing of the power supply preferred circuit in the three-way power is characterized in that: finished by following steps: after single-chip microcomputer is started working, carry out initialization earlier, then
(1) setting voltage scope;
(2) acquisition order three-way power voltage signal;
(3) judge first via power source voltage value whether in setting range, if for being, control relay K1 then, all not adhesives of K2 select first via power supply to be connected to output, and program forwards step (2) to;
(4) if for not, then judge the second tunnel power source voltage whether in setting range, if for being, then control relay K1 adhesive, relay K 2 not adhesives select the second road power supply to be connected to output, and program forwards step (2) to;
(5) if for not, then judge the Third Road power source voltage whether in setting range, if for being, then control relay K2 adhesive, selection Third Road power supply is connected to output, and program forwards step (2) to;
(6) if be that then single-chip microcomputer is not lighted alarm lamp LED, the prompting three-way power does not all meet current requirement, EP (end of program).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810154157A CN101615790A (en) | 2008-12-16 | 2008-12-16 | Power supply preferred circuit and method for optimizing in the three-way power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810154157A CN101615790A (en) | 2008-12-16 | 2008-12-16 | Power supply preferred circuit and method for optimizing in the three-way power |
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| CN101615790A true CN101615790A (en) | 2009-12-30 |
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| CN200810154157A Pending CN101615790A (en) | 2008-12-16 | 2008-12-16 | Power supply preferred circuit and method for optimizing in the three-way power |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893665A (en) * | 2010-05-18 | 2010-11-24 | 辽宁省电力有限公司朝阳供电公司 | Experimental instrument for automatic switching device of standby power supply |
| CN103227459A (en) * | 2013-05-16 | 2013-07-31 | 天津市百利电气有限公司 | Intelligent controller of breaker with load monitoring function |
-
2008
- 2008-12-16 CN CN200810154157A patent/CN101615790A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893665A (en) * | 2010-05-18 | 2010-11-24 | 辽宁省电力有限公司朝阳供电公司 | Experimental instrument for automatic switching device of standby power supply |
| CN103227459A (en) * | 2013-05-16 | 2013-07-31 | 天津市百利电气有限公司 | Intelligent controller of breaker with load monitoring function |
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Application publication date: 20091230 |