CN102593940A - UPS (Uninterruptible Power Supply) device and working method thereof - Google Patents
UPS (Uninterruptible Power Supply) device and working method thereof Download PDFInfo
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- CN102593940A CN102593940A CN2012100181845A CN201210018184A CN102593940A CN 102593940 A CN102593940 A CN 102593940A CN 2012100181845 A CN2012100181845 A CN 2012100181845A CN 201210018184 A CN201210018184 A CN 201210018184A CN 102593940 A CN102593940 A CN 102593940A
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Abstract
The invention relates to a UPS (Uninterruptible Power Supply) device, comprising a UPS circuit and a commercial power supply circuit and further comprising a multiplexing button, wherein the UPS circuit is connected with one end of the multiplexing button, and the commercial power supply circuit is connected with the other end of the multiplexing button through an optical coupling isolation circuit; when commercial power is input in the commercial power supply circuit, the multiplexing button is closed so that the UPS circuit provides a safe signal for the commercial power supply circuit through the optical coupling isolation circuit, and the safe signal is a signal in a specified threshold; and when no commercial power is input in the commercial power supply circuit, the multiplexing button is closed so as to trigger the UPS circuit to supply power to the commercial power supply circuit.
Description
Technical field
The present invention relates to power technology, relate in particular to a kind of uninterruption power source device and method of work thereof.
Background technology
UPS (Uninterruptable Power Supply, uninterruption power source) is a kind of power supply that after having a power failure, can continue power supply to equipment.It is the effect aspect the main performance two in computer systems and networks is used: the one, and emergent the use prevents sudden power and influences operate as normal, causes damage to computer; The 2nd, eliminate " power pollutions " such as surge on the civil power, instant high-voltage, moment low-voltage, electric wire noise and frequency shift (FS)s, improve power quality, for computer system provides high-quality power supply.
On existing UPS Product Interface, four buttons can be set generally, and a button can be set separately is battery cold start-up button in these four buttons.
Because the button sum generally is fixed as four on the UPS Product Interface, and there is one in these four buttons, can makes other exercisable button sum tail off and a battery cold start-up button is set separately for battery cold start-up button; For example; Do not have cancel key or the key that moves up in four buttons, correspondingly, just do not have the function of the cancel key or the key that moves up yet; Like this, can make troubles to user's operation.
Summary of the invention
The embodiment of the invention provides a kind of UPS device and method of work thereof, can under the prerequisite that does not increase number of keys, increase keypress function, is convenient to user's operation.
For achieving the above object, embodiments of the invention adopt following technical scheme:
According to one embodiment of the invention, on the one hand, a kind of UPS device is provided, comprise UPS circuit and mains-supplied circuit, said UPS device also comprises:
Multiplexing button, an end of said multiplexing button is connected with said UPS circuit, and the other end is connected with said mains-supplied circuit through optical coupling isolation circuit;
When said mains-supplied circuit had the civil power input, said multiplexing button closure can make that said UPS circuit is that said mains-supplied circuit provides safety signal through said optical coupling isolation circuit, and said safety signal is the signal in the specified thresholds;
When said mains-supplied circuit did not have the civil power input, said multiplexing button is closed can the said UPS circuit of triggering to be said mains-supplied circuit supply.
According to another embodiment of the present invention, on the other hand, a kind of method of work of above-mentioned UPS device is provided, comprises:
Closed said multiplexing button;
When said mains-supplied circuit had the civil power input, said multiplexing button closure can make that said UPS circuit is that said mains-supplied circuit provides safety signal through said optical coupling isolation circuit, and said safety signal is the signal in the specified thresholds;
When said mains-supplied circuit did not have the civil power input, said multiplexing button is closed can the said UPS circuit of triggering to be said mains-supplied circuit supply.
After adopting technique scheme; The UPS device that the embodiment of the invention provides, the method for work of UPS device; Utilize optical coupling isolation circuit that UPS circuit and mains-supplied circuit are reliably isolated; Can make under the prerequisite that does not increase number of keys that multiplexing button has two kinds of functions, promptly except that battery cold start-up function, also can extraly have a kind of function.So, can guarantee increases keypress function under the situation that does not increase number of keys, thereby the user's operation of can being more convenient for, and promotes user experience.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of structural representation of the UPS device that Fig. 1 provides for the embodiment of the invention
A kind of structural representation of the optical coupling isolation circuit that Fig. 2 provides for the embodiment of the invention;
The another kind of structural representation of the optical coupling isolation circuit that Fig. 3 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme of the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, all other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belong to the scope that the present invention protects.
The embodiment of the invention provides a kind of UPS device, and is as shown in Figure 1, comprises UPS circuit 11 and mains-supplied circuit 12, also comprises:
Be pointed out that the multiplexing button 13 in the embodiment of the invention is meant a button of the function that can bring into play two kinds of buttons, promptly said multiplexing button 13 is for being integrated with the button of two kinds of functions.
Can make said UPS circuit 11 for said mains-supplied circuit 12 safety signal is provided through said optical coupling isolation circuit 14 when said mains-supplied circuit 12 has civil power when input, said multiplexing button 13 closures, said safety signal is the interior signal of specified thresholds;
Wherein, the signal in said " specified thresholds " is meant the electronic device operate as normal that guarantees in the said mains-supplied circuit and not impaired signal.Said safety signal can be except that any other signal of the signal that triggers the UPS circuit supply, for example confirms push button signalling, the push button signalling that moves up, cancels push button signalling etc.For example, when button was confirmed in said multiplexing button performance, output affirmation push button signalling (safety signal) was confirmed keypress function with performance; When button was cancelled in said multiplexing button performance, output cancellation push button signalling (safety signal) was with performance cancellation keypress function.MCU in the mains-supplied circuit (Micro Control Unit, micro-control unit) can carry out the corresponding keypress function of said safety signal through receiving said safety signal.
When said mains-supplied circuit 12 no civil powers were imported, it be said mains-supplied circuit 12 power supplies that said multiplexing button 13 closed meetings trigger said UPS circuit 11.
Particularly, when the no civil powers input of said mains-supplied circuit 12, said multiplexing button 13 is closed can to produce unsafe signal in said UPS circuit 11, and unsafe signal triggers said UPS circuit 11 and is said mains-supplied circuit 12 power supplies thus.
The embodiment of the invention utilizes optical coupling isolation circuit that UPS circuit and mains-supplied circuit are reliably isolated; Can make under the prerequisite that does not increase number of keys that multiplexing button has two kinds of functions; Promptly except that battery cold start-up function, also can extraly have a kind of function.So, can guarantee increases keypress function under the situation that does not increase number of keys, thereby the user's operation of can being more convenient for, and promotes user experience.
State in realization in the process of function that multiplexing button has two kinds of buttons; For guaranteeing circuit safety; Prevent that the electronic device in the circuit from damaging, and needs through above-mentioned optical coupling isolation circuit the safety signal in unsafe signal in the said UPS circuit and the said mains-supplied circuit to be isolated.
Come below optical coupling isolation circuit recited above is described in detail, so that understand the present invention better.
Fig. 2 is a kind of structural representation of the optical coupling isolation circuit that provides of the embodiment of the invention.As shown in Figure 2, the optical coupling isolation circuit that the embodiment of the invention provides comprises:
Optocoupler U, switching tube Q, multiplexing button K, first resistance R
1With second resistance R
2, the first power supply V
CCWith second source V
DD
Need to prove; Switching tube Q is for only bringing into play the electronic device of on-off action in embodiments of the present invention; It specifically can be triode and MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor, metal-oxide layer-semiconductor-field-effect transistor).For ease of explanation, the switching tube Q among Fig. 2 is specially triode, and certainly within the scope of the invention, switching tube Q also can be MOSFET.
Being specially triode with switching tube Q below is the annexation that example is described embodiment of the invention optical coupling isolation circuit.
Triode Q comprises base stage (first utmost point), collector electrode (second utmost point) and emitter (the 3rd utmost point);
As shown in Figure 2, the end of multiplexing button K couples the first power supply V
CC, the other end connects first resistance R
1
First resistance R
1An end connection multiplexing button K, the other end connects the base stage (first utmost point) of triode Q;
The base stage of triode Q (first utmost point) connects first resistance R
1An end, collector electrode (second utmost point) connects the first input end A of optocoupler U
1, emitter (the 3rd utmost point) ground connection;
The first input end A of optocoupler U
1Second utmost point that connects triode Q, the second input A
2Couple the first power supply V
CC, the first output B of optocoupler U
1Ground connection, the second output B
2Connect second resistance R
2And couple MCU (Micro Control Unit, micro-control unit);
Second resistance R
2An end connect second output of optocoupler U and couple MCU, the other end connects second source V
DD, second resistance R wherein
2With the optocoupler U second output B
2The contact of an end that is connected is represented with KEY_ON.
Be pointed out that first resistance R among Fig. 2
1With second resistance R
2Be in order to expression resistance, and non-limiting concrete resistance number, that is, and first resistance R
1With second resistance R
2All can represent a resistance, certainly, can also represent the resistance of forming by several resistance.
Come below the operation principle of the optical coupling isolation circuit of the embodiment of the invention is elaborated.
In the optical coupling isolation circuit shown in Figure 2 in the above, the first power supply V
CCFor dividing the power supply that picks out in the UPS circuit, the voltage of its output is non-safe voltage, second source V
DDBe the power supply to the circuit devcie power supply, the voltage of its output is control voltage.Optocoupler U is in order to realize non-safe voltage and the isolation of controlling voltage in the circuit, and triode Q is in order to realize the driving to optocoupler U, and MCU detects to judge whether button is pressed in order to the level that KEY_ON is ordered.
When multiplexing button K is pressed, the first power supply V
CCTrigger triode Q conducting at this moment, has electric current to flow to emitter (the 3rd utmost point) from base stage (first utmost point).
After the triode Q conducting; Have electric current and flow to emitter (the 3rd utmost point) from the collector electrode (second utmost point) of triode; Trigger the lumination of light emitting diode of optocoupler U, moment reached capacity after the light-receiving device (specifically can be triode) in the optocoupler U was accepted light, produced photoelectric current and flowed out from output.
When the light-receiving device in the optocoupler U saturated when the output output current because the first output B of optocoupler U
1Ground connection, and the level that KEY_ON is ordered is identical with the output level of optocoupler U, thereby when multiplexing button K pressed, the level that KEY_ON is ordered was a low level.
Otherwise when multiplexing button K was not pressed, the output of optocoupler U did not have electric current output, thereby the level that KEY_ON is ordered is a high level.
Simultaneously, again because the KEY_ON point inserts MCU, thereby the level that MCU is ordered through detection KEY_ON can judge whether multiplexing button K presses.Particularly, when the KEY_ON point was high level, button was not pressed; When the KEY_ON point was low level, button was pressed.
After adopting optical coupling isolation circuit shown in Figure 2, can be through optocoupler U reliably with the first power supply V
CCThe non-safe voltage and the second source V of output
DDThe control voltage isolation of output, thus play the effect of guaranteeing fail safe.
The optical coupling isolation circuit that the embodiment of the invention provides is under the prerequisite of the normal operation of guaranteeing circuit, through with the first power supply V
CCNon-safe voltage that provides and second source V
DDThe control voltage that provides is isolated, and can improve fail safe.
Top embodiment only is to be that the situation of triode is illustrated with the switching tube, is that the situation of MOSFET describes to switching tube below.
Fig. 3 is the another kind of structural representation of the optical coupling isolation circuit that provides of the embodiment of the invention.As shown in Figure 3, optical coupling isolation circuit that present embodiment provides and optical coupling isolation circuit shown in Figure 2 are roughly the same, and difference only is that switching tube Q is by the MOSFET of triode replacement becoming among Fig. 3 of Fig. 2.That is the structural representation of the optical coupling isolation circuit when, Fig. 3 display switch pipe is MOSFET.
Operation principle in the face of circuit shown in Figure 3 describes down.
In Fig. 3, particularly, first grid very of switching tube Q, second source electrode very, the 3rd very drain electrode.
When multiplexing button K is pressed, the first power supply V
CCInput high level can trigger the MOSFET conducting through the grid input high level at MOSFET, and electric current flows to source electrode (the 3rd utmost point) from the drain electrode (second utmost point) of MOSFET;
After the MOSFET conducting, can trigger the lumination of light emitting diode of optocoupler U, moment reached capacity after the light-receiving device (specifically can be triode) in the optocoupler U was accepted light, produced photoelectric current and flowed out from output.
When the light-receiving device in the optocoupler saturated when the output output current because the first output B of optocoupler U
1Ground connection, thereby the level that KEY_ON is ordered is a low level.
When multiplexing button K was not pressed, identical with Fig. 2, the output of optocoupler U did not have electric current output, thereby the level that KEY_ON is ordered is a high level.
Simultaneously, again because the KEY_ON point inserts MCU, thereby the level that MCU is ordered through detection KEY_ON can confirm whether multiplexing button K presses.When the KEY_ON point was high level, button was not pressed; When the KEY_ON point was low level, button was pressed.
The optical coupling isolation circuit that the embodiment of the invention provides is under the prerequisite of the normal operation of guaranteeing circuit, through with the first power supply V
CCNon-safe voltage that provides and second source V
DDThe control voltage that provides is isolated, and can improve fail safe.
Among each embodiment, preferably, multiplexing button K is the button with function of two independent buttons in the above.The function of said two independent buttons includes but not limited to have the function and other common keypress functions of battery cold start-up button.The function of said common button comprises the function of the function of confirming button, the button that moves up, the function of cancellation button etc.Owing to confirm that keypress function is comparatively commonly used in all functions, thereby preferably, said multiplexing button has the function and the function of confirming button of battery cold start-up button.
Said multiplexing button K can bring into play different functions under the situation that the unregulated power input is arranged.For example, when electric power (comprising civil power and UPS electric power) was imported, multiplexing button K brought into play common keypress function (such as confirming keypress function); When not having the civil power input, the function of multiplexing button K performance battery cold start-up button.So, because multiplexing button K one button has the function of two buttons simultaneously, thereby, can under the situation that does not increase number of keys, increase the operating function of button, it is more convenient to make that the user operates.
In addition,,, confirm such as through software detection for having or not the civil power input can utilize existing technology commonly used, owing to have or not the civil power input to belong to existing common technology through software detection, thereby the present invention does not give unnecessary details this.
Need to prove that the optical coupling isolation circuit that the embodiment of the invention provides can be applied to and need and control any scene that voltage is isolated with non-safe voltage.
One concrete scene of the optical coupling isolation circuit that the application embodiment of the invention provides is described with way of example below.
On existing UPS interface; Usually battery cold start-up button separates with the affirmation button; Because button generally is fixed as four on the interface, can make exercisable number of keys tail off like this, does not for example cancel the button or the button that moves up, moves down button etc.; And then the feasible inconvenience that operates, influence user experience.
For addressing the above problem, can use the present invention one button is set on the UPS interface, make its function that has battery cold start-up button simultaneously and the function of confirming button.When stating battery cold start-up button in realization and confirming key-press sharing; Because the contact of battery cold start-up button connects the non-safe voltage of the non-isolation of battery side; And confirm that button is the safety signal that feeds MCU; Thereby need the two be isolated, in the physical circuit design process, can non-security control voltage and control voltage security be isolated through adopting Fig. 2 or optical coupling isolation circuit shown in Figure 3.At this moment, the multiplexing button K among Fig. 2 or Fig. 3 is the button of function that has battery cold start-up button on the UPS interface simultaneously and the function of confirming button, and concrete operation principle can be referring to the front illustration.And, confirm to have or not the civil power input through software detection.When civil power was imported, the function of button was confirmed in multiplexing button K performance, but when not having the civil power input, the function of multiplexing button K performance cold start-up button, and after cold start-up was accomplished, multiplexing button K continued the function that button is confirmed in performance.
Thus, present embodiment is not increasing under the situation of number of keys, has increased the function of button; Promptly both guaranteed the function of performance cold start-up button under the situation that does not have the civil power input; Can be very easy to user's operation there being performance under the situation of civil power input to confirm the function of button again, realize reliable isolation because of non-safe voltage and control voltage again simultaneously; Guaranteed fail safe, so promoted user experience greatly.
In addition, correspondingly, the embodiment of the invention also provide a kind of above the method for work of said UPS device, comprising:
Closed multiplexing button;
When said mains-supplied circuit had the civil power input, said multiplexing button closure can make that said UPS circuit is that said mains-supplied circuit provides safety signal through said optical coupling isolation circuit, and said safety signal is the signal in the specified thresholds;
When said mains-supplied circuit did not have the civil power input, said multiplexing button is closed can the said UPS circuit of triggering to be said mains-supplied circuit supply.
The embodiment of the invention utilizes optical coupling isolation circuit that UPS circuit and mains-supplied circuit are reliably isolated; Can make under the prerequisite that does not increase number of keys that multiplexing button has two kinds of functions; Promptly except that battery cold start-up function, also can extraly have a kind of function.So, can guarantee increases keypress function under the situation that does not increase number of keys, thereby the user's operation of can being more convenient for, and promotes user experience.
Alternatively, in one embodiment of this invention, said safety signal is specially the affirmation push button signalling, and said multiplexing button has battery cold start-up keypress function simultaneously and confirms keypress function; And
When said mains-supplied circuit working, keypress function is confirmed in the closed performance of said multiplexing button;
When said mains-supplied circuit is not worked, the closed performance of said multiplexing button battery cold start-up keypress function.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (6)
1. a uninterruption power source device comprises uninterruption power source circuit and mains-supplied circuit, it is characterized in that, also comprises:
Multiplexing button, an end of said multiplexing button is connected with said uninterruption power source circuit, and the other end is connected with said mains-supplied circuit through optical coupling isolation circuit;
When said mains-supplied circuit had the civil power input, said multiplexing button closure can make that said uninterruption power source circuit is that said mains-supplied circuit provides safety signal through said optical coupling isolation circuit, and said safety signal is the signal in the specified thresholds;
When said mains-supplied circuit did not have the civil power input, said multiplexing button is closed can the said uninterruption power source circuit of triggering to be said mains-supplied circuit supply.
2. uninterruption power source device according to claim 1 is characterized in that, said optical coupling isolation circuit comprises optocoupler, switching tube, button, first resistance and second resistance, first power supply and second source, wherein:
Said switching tube comprises first utmost point, second utmost point and the 3rd utmost point;
One end of said button couples first power supply, and the other end connects said first resistance;
One end of said first resistance connects said button, and the other end connects first utmost point of said switching tube;
First utmost point of said switching tube connects an end of said first resistance, and second utmost point connects the first input end of said optocoupler, the 3rd utmost point ground connection;
The first input end of said optocoupler connects second utmost point of said switching tube, and second input couples said first power supply, and first output head grounding of said optocoupler, second output connect said second resistance and couple micro-control unit;
One end of said second resistance connects second output of said optocoupler and couples said micro-control unit, and the other end connects said second source.
3. uninterruption power source device according to claim 2 is characterized in that,
Said switching tube is a triode;
First base stage very of said switching tube, second collector electrode very, the 3rd emitter very.
4. uninterruption power source device according to claim 2 is characterized in that,
Said switching tube is for being metal-oxide layer-semiconductor-field-effect transistor;
First grid very of said switching tube, second source electrode very, the 3rd very drain electrode.
5. according to the arbitrary described uninterruption power source device of claim 1-4, it is characterized in that,
Said safety signal is specially the affirmation push button signalling.
6. the method for work of the arbitrary said uninterruption power source device of claim 1-5 is characterized in that, comprising:
Closed said multiplexing button;
When said mains-supplied circuit had the civil power input, said multiplexing button closure can make that said uninterruption power source circuit is that said mains-supplied circuit provides safety signal through said optical coupling isolation circuit, and said safety signal is the signal in the specified thresholds;
When said mains-supplied circuit did not have the civil power input, said multiplexing button is closed can the said uninterruption power source circuit of triggering to be said mains-supplied circuit supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018184.5A CN102593940B (en) | 2012-01-19 | 2012-01-19 | UPS (Uninterruptible Power Supply) device and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018184.5A CN102593940B (en) | 2012-01-19 | 2012-01-19 | UPS (Uninterruptible Power Supply) device and working method thereof |
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| CN102593940B CN102593940B (en) | 2015-03-25 |
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Effective date of registration: 20211110 Address after: 518043 No. 01, 39th floor, building a, antuoshan headquarters building, No. 33, antuoshan Sixth Road, Xiang'an community, Xiangmihu street, Futian District, Shenzhen, Guangdong Province Patentee after: Huawei Digital Energy Technology Co., Ltd Address before: 518129 Huawei headquarters office building, Bantian, Longgang District, Shenzhen, Guangdong Patentee before: Huawei Technology Co., Ltd |