CN1042685C - Non-interruption power supply device and method - Google Patents
Non-interruption power supply device and method Download PDFInfo
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- CN1042685C CN1042685C CN95109223A CN95109223A CN1042685C CN 1042685 C CN1042685 C CN 1042685C CN 95109223 A CN95109223 A CN 95109223A CN 95109223 A CN95109223 A CN 95109223A CN 1042685 C CN1042685 C CN 1042685C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The present invention relates to a uninterrupted power supply device which comprises a signal converting device, an emergency power supply device, a switch control device, a first charge-discharge device, a second charge-discharge device, a first potential supply device, a second potential supply device, a first switch and a second switch. The present invention is characterized in that the switch control device is used for responding to power supply signals to generate first switch control signal output and second switch control signal output; the first charge-discharge device and the second charge-discharge device are used for charging and discharging by the power supply signals and emergency power supply signals; the first potential supply device and the second potential supply device are used for receiving the released charging energy in order to keep fixed potential at any time; the first switch and the second switch are respectively used for responding to the first switch control signal and the second switch control signal and are used as a charging and discharging circuit for the first charge-discharge device and the second charge-discharge device to charge and discharge. The present invention also provides a uninterrupted power supply method.
Description
The invention relates to a kind of power supply device and method, refer to a kind of non-interruption power supply device and method especially.
See also Fig. 1, it is the topological structure schematic diagram of traditional non-interrupted power supply system, wherein, we can see in Fig. 1, load device 5 is unlikely is subjected to interruption of going into supply power or the unstable influence failed from power input L as desiring to make for conventional practice, need rectifying device (Converter) 1, inverter (Inverter) 2, DC potential conversion equipment 3 and standby power supply device 4 be electrically connected and be connected into as shown in Figure 1 topological structure (wherein, indicating N is the power ground end).
Again, the topological structure of another kind of traditional non-interrupted power supply system sees also Fig. 2 then as shown in Figure 2, and rectifying device 1 is imported power supply to carry out rectification among the figure from power input L place, wherein, this rectifying device 1 can comprise rectification circuit 11 and power factor correction (PFC) circuit 12; Still as shown in Figure 1 as for 2 of standby power supply devices, standby power supply device 2 is imported power supply to charge from power input L place, yet, the output 21 of standby power supply device 2 among Fig. 2, then change into and being connected in the pfc circuit 12, certainly, finish by PFC control circuit 3 about the control of pfc circuit 12; And the output signal of pfc circuit 12, then deliver to a direct current current potential conversion equipment 4 places, this output signal is converted to the idiostatic direct current signal output of tool electrical isolation, thereafter, by inverter 5 this direct current is converted to alternating current output, for load device 6 provides power supply stable and that do not cut off the power supply.
Certainly, for further specifying the typical circuit structure of square inside among Fig. 2, see also Fig. 2, the common typical circuit structure of rectification circuit 11, pfc circuit 12 and DC potential conversion equipment 4 has been shown among Fig. 2, the personage that its operating principle should be known present technique can learn easily, is no longer given unnecessary details at this.
Discuss before combining,, all have shortcoming as described below no matter traditional non-interruption power supply device is Fig. 1 or topological structure shown in Figure 2:
1. owing to the DC potential conversion equipment that has an electrical isolation in traditional non-interrupted power supply system, therefore whole non-interrupted power supply system will occupy large-size and weight;
Moreover, conventional practice since power from input to load device, all must pass through: alternating current is converted to direct current that direct current (AC/DC), tool isolate and is converted to direct current (DC/DC) and direct current and is converted to alternating current (DC/AC) and waits the stage of conversion continuously, and therefore comprehensive conversion efficiency will be because of too frequently greatly reduction of conversion;
3. again, traditional non-interrupted power supply system is obviously comparatively complicated, so the cost that uses is obviously higher, thereby the reliability during the reduction System Operation.
For improving the shortcoming of above-mentioned conventional practice, concentrate on studies through the inventor, develop then and a kind of stability height, efficient height and cost is lower, volume is less non-interruption power supply device and method.
Main purpose of the present invention is to provide the non-interruption power supply device and the method for the high power conversion efficiency of a kind of tool.
Another object of the present invention is to provide a kind of non-interruption power supply device and method of tool high stability.
A time purpose of the present invention is to provide a kind of simple in structure and non-interruption power supply device that cost is low.
Another purpose of the present invention is that the volume that reduces non-interruption power supply device reaches, and alleviates its weight.
The present invention is about a kind of non-interruption power supply device, with thinking that load device provides stable and is not subjected to the power supply input current of outside input whether to have the power supply that influences, wherein, this non-interruption power supply device comprise with the AC power input current transfer the rectifying device of direct current output to, inverter that the input dc power circulation is used for load device for alternating current and for the standby power supply device of described load device use; Described load device is connected with described inverter; Described non-interruption power supply device also comprises:
Switch controlling device in response to described power supply input current, produces first and second switch controlling signal output;
First and second charge/discharge device, all be connected with described rectifying device and described standby power supply device, power supply input current and the described standby power supply device stand-by power supply electric current exported of described first and second charge/discharge device utilization after rectification carries out the charge/discharge action;
First and second current potential feeding mechanism, be connected with described first and second charge/discharge device respectively, described first and second current potential feeding mechanism all is connected with described inverter, and the described second current potential feeding mechanism is connected with the described first current potential feeding mechanism, described first and second current potential feeding mechanism is in order to receive the rechargeable energy that is discharged from the described first or second charge/discharge device because of described discharging action, so that the described first or second current potential feeding mechanism can both remain in fixed potential at any time, and this fixed potential exported to described inverter, use for described load device; And
First and second switch, be connected with described switch controlling device, and described first switch is connected with the described first current potential feeding mechanism with the described first charge/discharge device, and described second switch is connected with described first switch, the described second charge/discharge device and the described second current potential feeding mechanism, described first and second switch in order to respectively in response to described first and second switch controlling signal, to carry out the charge/discharge charge/discharge path in when action as described first and second charge/discharge device.
Certainly, wherein the power ground end is connected with described first and second switch, described first and second current potential feeding mechanism, described inverter and described switch controlling device; And described rectifying device comprises first and second rectifier diode that is electrically connected in the serial connection mode.
Certainly, wherein said rectifying device also comprises the input power control switch, and described power supply input current inputs to electrical connection place mutually between described first and second rectifier diode via described input power control switch.
Certainly, wherein said standby power supply device comprises a storage battery.
Certainly, wherein said standby power supply device also comprises the stand-by power supply charging device, and it utilizes described power supply input current, so that the current potential of described storage battery remains in fixed potential; And described standby power supply device also comprises the stand-by power supply control switch, described standby power supply device is connected with described switch controlling device, described stand-by power supply control switch determines whether described standby power supply device replaces described power supply input current, to become the power supply source of supply of described load device.
Certainly, wherein said standby power supply device also comprises and described stand-by power supply control switch diode in series, in order to protect described stand-by power supply control switch and described storage battery.
Certainly, wherein said switch controlling device comprises:
Whether power detector has described power supply input current to exist in order to detect, and has induced signal if any then producing out-put supply;
Phase locking system, in response to described power supply input current, be in when input state is arranged at described power supply input current, produce with described power supply input current and have synchronous phase-locked signal, when described power supply input current was in the no current input state, the phase-locked signal of described phase locking system output still continued to possess former phase place; And
The switch controlling signal generation device, be connected with described power detector and described phase locking system, described switch controlling signal generation device exists induced signal and described phase-locked signal in response to described power supply, produce described first and second switch controlling signal, to control described first and second switch.
Certainly, wherein said power supply exists induced signal to use as the 3rd switch controlling signal, be in when the electric current input state is arranged at described power supply input current, control described input power control switch and described stand-by power supply control switch, they are in respectively opens and closed condition, and when described power supply input current is in the no current input state, control described input power control switch and described stand-by power supply control switch, they are in respectively close and opening.
Certainly, wherein said phase locking system is a PLL device.
Certainly, wherein said switch controlling signal generation device comprises:
Full-wave rectifying circuit is in order to convert the AC power input current to direct current output;
Differential amplifier circuit is in order to produce the direct current output of electronegative potential in response to described storage battery two terminal potentials;
The feedback compensation circuit is in order to the electric potential signal in response to described first and second current potential feeding mechanism two ends, with the electric potential signal of the low filtering of output device;
Current sensing means is in order to the output signal in response to described first and second switch, to produce current sensing signal;
The power factor correction integrated circuit is connected with described full-wave rectifying circuit, described differential amplifier circuit, described feedback compensation circuit and described current-sensing circuit, produces the output power factor correction signal; And
Optical coupling drive signal output device is connected with described power factor correction integrated circuit, and described optical coupling drive signal output device produces the control signal of described first and second switch in response to described pfc signal.
Certainly, wherein said optical coupling drive signal output device comprises two groups of optical coupling drivers at least.
Certainly, wherein said first and second charge/discharge device all comprises an inductor.
Certainly, wherein said first and second current potential feeding mechanism all comprises a capacitor.
Certainly, wherein said first and second current potential feeding mechanism band all comprises a diode, in order to protect described capacitor.
Certainly, wherein said first and second switch all comprises a transistor switch.
Certainly, wherein said first and second switch is in first or the second switch state respectively in response to described first and second switch controlling signal.
Certainly, wherein said first and second on off state is respectively and opens and closed condition.
Certainly, wherein said first and second switch also comprises a current sensing means, to the flow through current change of described transistor switch of described current sensing means, reaction is to its secondary side circuit, so that this secondary side circuit is exported described current sensing signal, use for described power factor correction integrated circuit.
About a kind of uninterrupted power supplier method of the present invention, it can be used for non-interruption power supply device, for load device provides stable and is not subjected to the power supply input current of outside input whether to have the power supply that influences, described non-interruption power supply device comprises switch controlling device and first and second current potential feeding mechanism, wherein, described switch controlling device produces the output of phase-locked signal and first and second switch controlling signal in response to described power supply input current, it is characterized in that this described method comprises the following steps:
A) be in when having electric current input state and described phase-locked signal to be in first operating state at described power supply input current, described first switch controlling signal is in the mutual alternate cycle variation of first and second state of a control, and described second switch control signal is in one of described first or second state of a control, so that the described first current potential feeding mechanism provides stabilized power supply, use for described load device;
B) be in when having electric current input state and described phase-locked signal to be in second operating state at described power supply input current, described first switch controlling signal is in one of described first or second state of a control, and described second switch control signal is in the mutual alternate cycle variation of described first and second state of a control, so that the described second current potential feeding mechanism provides stabilized power supply, use for described load device;
C) when described power supply input current is in no current input state and described phase-locked signal and is in first operating state, described first switch controlling signal is in the mutual alternate cycle variation of described first or second state of a control, and described second switch control signal is in described first state of a control, so that the described first current potential feeding mechanism continues to provide stabilized power supply, use for described load device; And
D) when described this power supply input current is in no current input state and described phase-locked signal and is in described second operating state, described first switch controlling signal is in described first state of a control, and described second switch control signal is in the mutual alternate cycle variation of described first and second state of a control, so that the described second current potential feeding mechanism continues to provide stabilized power supply, use for described load device.
Certainly, wherein said non-interruption power supply device also comprises:
Rectifying device is in order to being direct current with the rectification of described AC power input current;
Inverter is converted to alternating current output in order to the direct current that will be imported, uses to supply with described load device;
Standby power supply device in order to output stand-by power supply electric current, uses for described load device;
First and second charge/discharge device utilizes described power supply input current and described stand-by power supply electric current, carries out the charge/discharge action; And
First and second switch, in order to respectively in response to described first and second switch controlling signal, the charge/discharge path when carrying out described charge/discharge action as described first and second charge/discharge device;
The described step (a) of wherein carrying out said method also comprises the following steps: before
A1) detect described power supply input current, be in when the electric current input state is arranged at described power supply input current, described switch controlling device makes this standby power supply device be in off-state, and during in the no current input state, makes described standby power supply device be in supply status at described power supply input current.
Certainly, wherein be in described first and second state of a control in response to described first switch controlling signal, described first switch is in first and second on off state respectively, ring described second switch control signal and be in described first and second state of a control, described second switch is in described first and second on off state respectively.
Certainly, wherein said first and second on off state is respectively and opens and closed condition.
Certainly, wherein when first switch is in described opening described in the described step (a), described first charge/discharge device input this power supply input current after rectification is to carry out described charging action, and when described first switch is in described closed condition, the described first charge/discharge device carries out described discharging action, with will fill from described power supply input current place rechargeable energy offer the described first current potential feeding mechanism, so that the described first current potential feeding mechanism remains in fixed potential, use for described load device.
Certainly, wherein when second switch is in described opening described in the described step (b), the described power supply input current of described second charge/discharge device input after rectification is to carry out described charging action, described second switch is when being in described closed condition, the described second charge/discharge device carries out described discharging action, with will fill from described power supply input current place rechargeable energy offer the described second current potential feeding mechanism, make the described second current potential feeding mechanism remain in fixed potential, use for described load device.
Certainly, wherein when first and second switch all is in described opening described in the described step (c), described first and second charge/discharge device is imported described stand-by power supply electric current to carry out described charging action, described first switch is in described closed condition and described second switch when still being in described opening, described first and second charge/discharge device carries out described discharging action, with will fill from described stand-by power supply electric current place rechargeable energy offer the described first current potential feeding mechanism, make the sustainable fixed potential that remains in of the described first current potential feeding mechanism, use for described load device.
Certainly, wherein when first and second switch all is in described opening described in the described step (d), described first and second charge/discharge device is imported described stand-by power supply electric current to carry out described charging action, described second switch is in described closed condition and described first switch when still being in described opening, described first and second charge/discharge device carries out described discharging action, with will fill from described standby power supply device place rechargeable energy offer the described second current potential feeding mechanism, make the sustainable current potential that is maintained fixed of the described second current potential feeding mechanism, use for described load device.
Certainly, wherein said first and second operating state is respectively high potential state and low-potential state.
Certainly, wherein said first and second operating state is respectively low-potential state and high potential state.
Certainly, wherein said first and second state of a control is respectively high potential state and low-potential state.
Certainly, wherein first and second state of a control is respectively low-potential state and high potential state.
The present invention gets one and more understands in depth by following accompanying drawing and detailed description.
Fig. 1 is the topological structure schematic diagram of traditional non-interrupted power supply system.
Fig. 2 is the topological structure schematic diagram of another kind of traditional non-interrupted power supply system.
Fig. 3 is the typical internal examples of circuits figure of part square among Fig. 2.
Fig. 4 is the topological structure schematic diagram of one of the present invention preferred embodiment.
Fig. 5 is the side circuit exemplary plot of one of the present invention preferred embodiment device.
Fig. 6 is the internal circuit exemplary plot of switch controlling signal generation device in the present invention's the preferred embodiment device.
Fig. 7 (a) and (b) are the signal relation schematic diagram between phase-locked signal and first and second switch controlling signal in one of the present invention preferred embodiment method.
Fig. 8 (a)-(b) is for cooperating the circuit actual act schematic diagram that concerns between signal shown in Figure 7 in the present invention's the preferred embodiment device.
See also Fig. 4, it is the topological structure schematic diagram of one of the present invention preferred embodiment, wherein, to deliver to power rectifier processing unit 1 place from the power supply input current that this power input L is imported by power input L and power ground end N, then, directly can be sent in the load device 4 via inverter 3, simultaneously, standby power supply device 2 also only must be by rectification processing unit 1 and inverter 3, can when interrupting, use by the stand-by power supply as load device 4 the power supply input current, thus, structure of the present invention is obviously than Fig. 1, structure shown in 2 is more simple, and power conversion efficiency also will greatly improve because of reducing conversion level simultaneously.
See also Fig. 5, Fig. 5 comprises in Fig. 5: power rectifier processing unit 1, standby power supply device 2, inverter 3 and load device 4 for the side circuit exemplary plot of one of the present invention preferred embodiment device; Wherein, this power rectifier processing unit 1 can comprise: rectifying device 11, switch controlling device 12, first and second charge/discharge device 13,14, first and second current potential feeding mechanism 15,16 and first and second switch 17,18; And rectifying device 11 can comprise first and second rectifier diode D1, D2 and input power control switch S3.
Certainly, 13,14 in first and second charge/discharge device all comprises inductor L1 and L2 respectively; And 15,16 of first and second current potential feeding mechanisms all comprise the diode D4 that the charging current way flow is crossed respectively, the capacitor C1 that D5 and store charge use for load device 4, C2; Has transistor switch S1 respectively as for 17,18 on first and second switch, the first order current sensing means CT1 of S2 and current sensor size, CT2.
Again, switch controlling device 12 can comprise: the generation power supply exists the power detector 121 of induced signal, the phase locking system 122 and the switch controlling signal generation device 123 of generation phase-locked signal; Wherein, phase locking system 122 can be phase-locked loop (PLL); Switch controlling signal generation device 123 can comprise the current potential induced signal input B+ that imports first and second current potential feeding mechanism electric potential signal, B-, first and second switch controlling signal output S11, S21, current sensing signal input CT11, CT12, CT21 and CT22, input power supply exist first and second power supply of induced signal to have induced signal input F, G, power input Lc, earth terminal Nc, stand-by power supply current potential induction end U1, first and second phase-locked signal input A of U2 and input phase locking signal, B; Wherein, second source exists induced signal input G to exist induced signal to give anti-phase processing the power supply of being imported, and the second phase-locked signal input B also gives anti-phase processing with the phase-locked signal of being imported.
The diode D3 that can comprise storage battery Vb, stand-by power supply control switch S4, power source charges device 21 and protection storage battery Vb, stand-by power supply control switch S4 and power source charges device 21 as for standby power supply device 2.As shown in Figure 5, diode D3 connects with stand-by power supply control switch S4.
Certainly, in Fig. 5, power detector 121, phase locking system 122, power source charges device 21 and inverter 3 all be familiar with present technique the personage the technology that should know, for reducing the specification length, promptly no longer given unnecessary details at this.
Certainly, the internal circuit of switch controlling signal generation device 123 wherein, can cooperate consult shown in Figure 6, in Fig. 6, switch controlling signal generation device 123 comprises: the full-wave rectifying circuit 1231 that is used for the AC power input current is transferred to direct current, in response to stand-by power supply current potential induction end U1, the differential amplifier circuit 1232 of U2 input signal, in response to self-potential induced signal end B+, the signal of B-input is with stable potential induced signal end B+, the feedback compensation circuit 1233 of B-current potential, in response to current sensing signal input CT11, CT12, the secondary side current induction installation 1234 of CT21 and CT22, power factor correction (PFC) integrated circuit 1235 and optical coupling drive signal output device 1236; Wherein, output signal and the phase-locked signal of signal output apparatus 1236 in response to power factor correction integrated circuit 1235 driven in this optical coupling, and cooperates logic control circuit 12361, produces first and second switch controlling signal output, wherein, OPT1 and OPT2 are two groups of optical coupling drivers; As for the thin portion signal transmission action between full-wave rectifying circuit shown in Fig. 6 1231, differential amplifier circuit 1232, feedback compensation circuit 1233 and secondary side current induction installation 1234 and PFC IC, should be the known technology of personage in present technique field, also no longer given unnecessary details at this.
As for indicating S11, S21, F, G, Lc, Nc, A and B person among Fig. 6, mean first and second switching signal output S11 among Fig. 5 respectively, there are induced signal input F in S21, first and second power supply, G, power input Lc, power ground end Nc and first and second phase-locked signal input A, B.
About the operation principle shown in Fig. 5, then be as described below:
(A) be in when the electric current input state is arranged at the power supply input current:
The phase-locked signal that phase locking system 122 is exported will be in response to the phase place of power supply input current, and delivers in the switch controlling signal generation device 123 for the usefulness that produces first and second switch controlling signal; Again, the power supply that utilizes power detector 121 to be exported exists induced signal to make input power control switch S3 be in opening, and makes stand-by power supply control switch S4 be in closed condition; Moreover, capacitor C1 for load device 4 uses, C2 is because of remaining in fixed potential often, so by carrying out the inductor L1 of charge/discharge action, L2, and cooperate from first and second switch controlling signal output S11, first and second switch controlling signal that S12 exported, driving transistors switch S 1, S2 so that inductor L1 or L2 from be in have the power supply of electric current input state input current place fill power supply energy, and, the power supply energy that fills is exported among capacitor C1 and the C2, so the power supply input current can be offered load device 4 and use;
(B) when the power supply input current is in the no current input state:
The phase-locked signal that phase locking system 122 is exported will keep the power supply input current to be in former phase place when the electric current input state is arranged, and deliver in the switch controlling signal generation device 123 for continuing to produce first and second synchronous switch controlling signal, and this moment, power supply exists induced signal will make input power control switch S3 be in closed condition, and make stand-by power supply control switch S4 be in opening, so, then inductor L1 and L2 can cooperate transistor switch S1, the unlatching of S2 and closing motion and changing from storage battery Vb place charges, and the power supply energy that fills is exported among capacitor C1 and the C2, to continue providing stable power to load device 4.
Now correlation between phase-locked signal and first and second switch controlling signal is illustrated in Fig. 7 (a) and (b), indicates the phase-locked signal that is of PLL among the figure, and indicate first and second switch controlling signal that is respectively of SW1 and SW2; Wherein, shown in Fig. 7 (a), for the power supply input current is in when the electric current input state is arranged, signal relation figure between phase-locked signal and first and second switch controlling signal, wherein SW1 or SW2 are wherein arbitrary when being in the mutual conversion of high and low current potential, and another can be fixedly high potential (shown in case 1) or fixedly electronegative potential (shown in case 2); When Fig. 7 (b) then is in the no current input state for the power supply input current, the signal relation figure between phase-locked signal and first and second switch controlling signal; Certainly, the signal relation figure of Fig. 7 (a) and (b) is the preferable implementation method of one of the present invention, and its detailed step then sees also the explanation of the preferable implementation method of aforementioned invention description, believes and so should further disclose invention spirit of the present invention.
Certainly, signal relation shown in Fig. 7 (a) and (b), how it makes capacitor C1 and C2 in the circuit shown in Figure 5, no matter can be in the side circuit operative scenario that has electric current input or no current input state can both be maintained fixed current potential in the power supply input current, then see also shown in Fig. 8 (a)-(d), and cooperate and to consult Fig. 5 and Fig. 7 (a) and (b), so can be more clear.
Shown in Fig. 8 (a), it is in high potential state for phase-locked signal, and input power control switch S3 is in opening and stand-by power supply control switch S4 when being in closed condition, first and second switch S 1, and the action situation of S2:
Because this moment, second switch S2 was because of the relation of rectifier diode D2, no matter it is for opening or closed condition, all unlikely capacitor C1 or C2 are influenced to some extent, so only first switch S 1 is moved to some extent; Wherein, when first switch S 1 should be in high potential state in response to the first switch controlling signal SW1, first switch S 1 is opening and inductor L1 promptly charges, and when first switch S 1 was in low-potential state in response to the first switch controlling signal SW1, first switch S 1 promptly was in closed condition; Certainly, the power supply energy that this moment, inductor L1 was about to before fill exports among the capacitor C1; Because, the first switch controlling signal SW1 is in the mutual conversion of high and low current potential (shown in sign A among Fig. 7 (a)) this moment, so will impel the also conversion mutually between unlatching and closed condition of first switch S 1, so the current potential of capacitor C1 just can remain in fixed potential.
In shown in Fig. 8 (b), it is in low-potential state for phase-locked signal again, and input power control switch S3 is in opening and stand-by power supply control switch S4 when being in closed condition, first and second switch S 1, and the action situation of S2:
Because first switch S 1 is because of the relation of rectifier diode D1, no matter it all influences capacitor C1 or C2 unlikely, so only second switch S2 moves to some extent to some extent for opening and closed condition at this moment; Wherein, SW2 is in high potential state in response to the second switch control signal, second switch S2 is opening, and L2 charges to inductor, and when second switch control signal SW2 is in low-potential state, second switch S2 is closed condition, and the power supply energy that this moment, inductor L2 was about to before fill exports among the capacitor C2; Because, second switch control signal SW2 is in the mutual conversion of high and low current potential (shown in sign B among Fig. 7 (a)) this moment, so will impel second switch S2 also to be in conversion mutually between unlatching and closed condition, so, the current potential of capacitor C2 just can remain in fixed potential.
Shown in Fig. 8 (c), it is in high potential state for phase-locked signal, and input power control switch S3 is in closed condition and stand-by power supply control switch S4 when being in opening, first and second switch S 1, and S2 moves situation:
Because this moment, the second switch control signal was to be in high potential state (shown in sign C among Fig. 7 (b)) all the time, so second switch S2 promptly also is in opening all the time; Moreover, cooperate the first switch controlling signal SW1 to be in the mutual conversion of high and low current potential at this moment, and also being in, the switch S 1 of winning opens and the mutual transition state of closed condition, thus, when first switch S 1 is opening, inductor L1 and L2 all will fill from storage battery Vb place power supply energy, and when first switch S 1 is closed, the power supply energy that inductor L1 and L2 before filled also will be released among the capacitor C1, so the current potential of capacitor C1, reason power supply input current is not in the no current input state and unregulated power can be for load device 4 uses.
Certainly, shown in Fig. 8 (d), it is in low-potential state for phase-locked signal, and input power control switch S3 is in closed condition and stand-by power supply control switch S4 when being in opening, first and second switch S 1, and the action situation of S2:
Because this moment, first switch controlling signal was in low-potential state (shown in sign D among Fig. 7 (b)) all the time, so first switch S 1 promptly also is in opening all the time; Moreover, cooperate second switch control signal SW2 to be in the mutual conversion of high and low current potential at this moment, and will make second switch S2 also be in mutual transition state between unlatching and closed condition, thus, when second switch S2 is opening, inductor L1 and L2 all will fill from storage battery Vb place power supply energy, and when second switch S2 closes, the power supply energy that inductor L1 and L2 had before filled also will be released among the capacitor C2, thus the current potential of capacitor C2 also the general not reason power supply input current be in the no current input state and unregulated power can be for load device 4 uses.
In sum,, can get that cost is low, in light weight, volume is little by the present invention, and high non-interruption power supply device and the method for power conversion efficiency.
The personage who is familiar with present technique modified as all the present invention does, did not break away from the scope of claims institute desire protection.
Claims (32)
1. non-interruption power supply device, with thinking that load device provides stable and is not subjected to the power supply input current of outside input whether to have the power supply that influences, wherein, this non-interruption power supply device comprise with the AC power input current transfer the rectifying device of direct current output to, inverter that the input dc power circulation is used for load device for alternating current and for the standby power supply device of described load device use; Described load device is connected with described inverter;
It is characterized in that described non-interruption power supply device also comprises:
Switch controlling device in response to described power supply input current, produces first and second switch controlling signal output;
First and second charge/discharge device, all be connected with described rectifying device and described standby power supply device, power supply input current and the described standby power supply device stand-by power supply electric current exported of described first and second charge/discharge device utilization after rectification carries out the charge/discharge action;
First and second current potential feeding mechanism, be connected with described first and second charge/discharge device respectively, described first and second current potential feeding mechanism all is connected with described inverter, and the described second current potential feeding mechanism is connected with the described first current potential feeding mechanism, described first and second current potential feeding mechanism is in order to receive the rechargeable energy that is discharged from the described first or second charge/discharge device because of described discharging action, so that the described first or second current potential feeding mechanism can both remain in fixed potential at any time, and this fixed potential exported to described inverter, use for described load device; And
First and second switch, be connected with described switch controlling device, and described first switch is connected with the described first current potential feeding mechanism with the described first charge/discharge device, and described second switch is connected with described first switch, the described second charge/discharge device and the described second current potential feeding mechanism, described first and second switch in order to respectively in response to described first and second switch controlling signal, to carry out the charge/discharge charge/discharge path in when action as described first and second charge/discharge device.
2. non-interruption power supply device as claimed in claim 1 is characterized in that, the power ground end is connected with described first and second switch, described first and second current potential feeding mechanism, described inverter and described switch controlling device.
3. non-interruption power supply device as claimed in claim 2 is characterized in that, described rectifying device comprises first and second rectifier diode that is electrically connected in the serial connection mode.
4. non-interruption power supply device as claimed in claim 3, it is characterized in that, described rectifying device also comprises the input power control switch, and described power supply input current inputs to electrical connection place mutually between described first and second rectifier diode via described input power control switch.
5. non-interruption power supply device as claimed in claim 4 is characterized in that described standby power supply device comprises a storage battery.
6. non-interruption power supply device as claimed in claim 5 is characterized in that described standby power supply device also comprises the stand-by power supply charging device, and it utilizes described power supply input current, so that the current potential of described storage battery remains in fixed potential.
7. non-interruption power supply device as claimed in claim 6, it is characterized in that, described standby power supply device also comprises the stand-by power supply control switch, described standby power supply device is connected with described switch controlling device, described stand-by power supply control switch determines whether described standby power supply device replaces described power supply input current, to become the power supply source of supply of described load device.
8. non-interruption power supply device as claimed in claim 7 is characterized in that, described standby power supply device also comprises and described stand-by power supply control switch diode in series, in order to protect described stand-by power supply control switch and described storage battery.
9. non-interruption power supply device as claimed in claim 7 is characterized in that, described switch controlling device comprises:
Whether power detector has described power supply input current to exist in order to detect, and has induced signal if any then producing out-put supply;
Phase locking system, in response to described power supply input current, be in when input state is arranged at described power supply input current, produce with described power supply input current and have synchronous phase-locked signal, when described power supply input current was in the no current input state, the phase-locked signal of described phase locking system output still continued to possess former phase place; And
The switch controlling signal generation device, be connected with described power detector and described phase locking system, described switch controlling signal generation device exists induced signal and described phase-locked signal in response to described power supply, produce described first and second switch controlling signal, to control described first and second switch.
10. non-interruption power supply device as claimed in claim 9, it is characterized in that, described power supply exists induced signal to use as the 3rd switch controlling signal, be in when the electric current input state is arranged at described power supply input current, control described input power control switch and described stand-by power supply control switch, they are in respectively opens and closed condition, and when described power supply input current is in the no current input state, control described input power control switch and described stand-by power supply control switch, they are in respectively close and opening.
11. non-interruption power supply device as claimed in claim 10 is characterized in that, described phase locking system is a PLL device.
12. non-interruption power supply device as claimed in claim 10 is characterized in that, described switch controlling signal generation device comprises:
Full-wave rectifying circuit is in order to convert the AC power input current to direct current output;
Differential amplifier circuit is in order to produce the direct current output of electronegative potential in response to described storage battery two terminal potentials;
The feedback compensation circuit is in order to the electric potential signal in response to described first and second current potential feeding mechanism two ends, with the electric potential signal of the low filtering of output device;
Current sensing means is in order to the output signal in response to described first and second switch, to produce current sensing signal;
The power factor correction integrated circuit is connected with described full-wave rectifying circuit, described differential amplifier circuit, described feedback compensation circuit and described current-sensing circuit, produces the output power factor correction signal; And
Optical coupling drive signal output device is connected with described power factor correction integrated circuit, and described optical coupling drive signal output device produces the control signal of described first and second switch in response to described pfc signal.
13. non-interruption power supply device as claimed in claim 12 is characterized in that, described optical coupling drive signal output device comprises two groups of optical coupling drivers at least.
14. non-interruption power supply device as claimed in claim 9 is characterized in that, described first and second charge/discharge device all comprises an inductor.
15. non-interruption power supply device as claimed in claim 9 is characterized in that, described first and second current potential feeding mechanism all comprises a capacitor.
16. non-interruption power supply device as claimed in claim 15 is characterized in that, described first and second current potential feeding mechanism band all comprises a diode, in order to protect described capacitor.
17. non-interruption power supply device as claimed in claim 9 is characterized in that, described first and second switch all comprises a transistor switch.
18., it is characterized in that described first and second switch is in first or the second switch state respectively in response to described first and second switch controlling signal as claim 17 described non-interruption power supply devices.
19. non-interruption power supply device as claimed in claim 18 is characterized in that, described first and second on off state is respectively to be opened and closed condition.
20. non-interruption power supply device as claimed in claim 19, it is characterized in that, described first and second switch also comprises a current sensing means, to the flow through current change of described transistor switch of described current sensing means, reaction is to its secondary side circuit, so that this secondary side circuit is exported described current sensing signal, use for described power factor correction integrated circuit.
21. uninterrupted power supplier method, be used for non-interruption power supply device, for load device provides stable and is not subjected to the power supply input current of outside input whether to have the power supply that influences, described non-interruption power supply device comprises switch controlling device and first and second current potential feeding mechanism, wherein, described switch controlling device produces the output of phase-locked signal and first and second switch controlling signal in response to described power supply input current, it is characterized in that this described method comprises the following steps:
A) be in when having electric current input state and described phase-locked signal to be in first operating state at described power supply input current, described first switch controlling signal is in the mutual alternate cycle variation of first and second state of a control, and described second switch control signal is in one of described first or second state of a control, so that the described first current potential feeding mechanism provides stabilized power supply, use for described load device;
B) be in when having electric current input state and described phase-locked signal to be in second operating state at described power supply input current, described first switch controlling signal is in one of described first or second state of a control, and described second switch control signal is in the mutual alternate cycle variation of described first and second state of a control, so that the described second current potential feeding mechanism provides stabilized power supply, use for described load device;
C) when described power supply input current is in no current input state and described phase-locked signal and is in first operating state, described first switch controlling signal is in the mutual alternate cycle variation of described first or second state of a control, and described second switch control signal is in described first state of a control, so that the described first current potential feeding mechanism continues to provide stabilized power supply, use for described load device; And
D) when described this power supply input current is in no current input state and described phase-locked signal and is in described second operating state, described first switch controlling signal is in described first state of a control, and described second switch control signal is in the mutual alternate cycle variation of described first and second state of a control, so that the described second current potential feeding mechanism continues to provide stabilized power supply, use for described load device.
22. uninterrupted power supplier method as claimed in claim 21 is characterized in that, described non-interruption power supply device also comprises:
Rectifying device is in order to being direct current with the rectification of described AC power input current;
Inverter is converted to alternating current output in order to the direct current that will be imported, uses to supply with described load device;
Standby power supply device in order to output stand-by power supply electric current, uses for described load device;
First and second charge/discharge device utilizes described power supply input current and described stand-by power supply electric current, carries out the charge/discharge action; And
First and second switch, in order to respectively in response to described first and second switch controlling signal, the charge/discharge path when carrying out described charge/discharge action as described first and second charge/discharge device;
The described step (a) of wherein carrying out said method also comprises the following steps: before
A1) detect described power supply input current, be in when the electric current input state is arranged at described power supply input current, described switch controlling device makes this standby power supply device be in off-state, and during in the no current input state, makes described standby power supply device be in supply status at described power supply input current.
23. uninterrupted power supplier method as claimed in claim 21, it is characterized in that, be in described first and second state of a control in response to described first switch controlling signal, described first switch is in first and second on off state respectively, ring described second switch control signal and be in described first and second state of a control, described second switch is in described first and second on off state respectively.
24. uninterrupted power supplier method as claimed in claim 23 is characterized in that, described first and second on off state is respectively to be opened and closed condition.
25. uninterrupted power supplier method as claimed in claim 25, it is characterized in that, when first switch is in described opening described in the described step (a), described first charge/discharge device input this power supply input current after rectification is to carry out described charging action, and when described first switch is in described closed condition, the described first charge/discharge device carries out described discharging action, with will fill from described power supply input current place rechargeable energy offer the described first current potential feeding mechanism, so that the described first current potential feeding mechanism remains in fixed potential, use for described load device.
26. uninterrupted power supplier method as claimed in claim 24, it is characterized in that, when second switch is in described opening described in the described step (b), the described power supply input current of described second charge/discharge device input after rectification is to carry out described charging action, described second switch is when being in described closed condition, the described second charge/discharge device carries out described discharging action, with will fill from described power supply input current place rechargeable energy offer the described second current potential feeding mechanism, make the described second current potential feeding mechanism remain in fixed potential, use for described load device.
27. uninterrupted power supplier method as claimed in claim 24, it is characterized in that, when first and second switch all is in described opening described in the described step (c), described first and second charge/discharge device is imported described stand-by power supply electric current to carry out described charging action, described first switch is in described closed condition and described second switch when still being in described opening, described first and second charge/discharge device carries out described discharging action, with will fill from described stand-by power supply electric current place rechargeable energy offer the described first current potential feeding mechanism, make the sustainable fixed potential that remains in of the described first current potential feeding mechanism, use for described load device.
28. uninterrupted power supplier method as claimed in claim 24, it is characterized in that, when first and second switch all is in described opening described in the described step (d), described first and second charge/discharge device is imported described stand-by power supply electric current to carry out described charging action, described second switch is in described closed condition and described first switch when still being in described opening, described first and second charge/discharge device carries out described discharging action, with will fill from described standby power supply device place rechargeable energy offer the described second current potential feeding mechanism, make the sustainable current potential that is maintained fixed of the described second current potential feeding mechanism, use for described load device.
29. uninterrupted power supplier method as claimed in claim 21 is characterized in that, described first and second operating state is respectively high potential state and low-potential state.
30. uninterrupted power supplier method as claimed in claim 21 is characterized in that, described first and second operating state is respectively low-potential state and high potential state.
31. uninterrupted power supplier method as claimed in claim 21 is characterized in that, described first and second state of a control is respectively high potential state and low-potential state.
32. uninterrupted power supplier method as claimed in claim 21 is characterized in that first and second state of a control is respectively low-potential state and high potential state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95109223A CN1042685C (en) | 1995-08-11 | 1995-08-11 | Non-interruption power supply device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95109223A CN1042685C (en) | 1995-08-11 | 1995-08-11 | Non-interruption power supply device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1143277A CN1143277A (en) | 1997-02-19 |
| CN1042685C true CN1042685C (en) | 1999-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN95109223A Expired - Lifetime CN1042685C (en) | 1995-08-11 | 1995-08-11 | Non-interruption power supply device and method |
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| CN (1) | CN1042685C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438260C (en) * | 2005-03-11 | 2008-11-26 | 台达电子工业股份有限公司 | Control method of boosted circuit |
| US20090206668A1 (en) * | 2008-02-15 | 2009-08-20 | Warwick Graham Andrew Dawes | Uninterruptible cooling system and apparatus |
| EP2600490B1 (en) * | 2011-12-01 | 2015-08-26 | AEG Power Solutions GmbH | Assembly for an uninterrupted power supply |
| CN103378323B (en) * | 2012-04-11 | 2016-02-03 | 第一传动科技股份有限公司 | The stand-by battery box of electric cylinder |
| US9041344B2 (en) | 2012-05-25 | 2015-05-26 | Timotion Technology Co., Ltd. | Standby battery box for electric cylinder |
| CN104049572B (en) * | 2012-08-14 | 2019-04-23 | 费希尔控制国际公司 | Control signal protection equipment |
| CN105374530A (en) * | 2014-08-21 | 2016-03-02 | 群光电能科技股份有限公司 | Power factor corrector and inductor thereof |
| CN106329699B (en) * | 2015-06-24 | 2019-03-05 | 维谛技术有限公司 | A kind of uninterruptible power supply and its control method, control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728808A (en) * | 1985-03-13 | 1988-03-01 | Bet Esh Ran | Uninterruptible power supply system |
| CN1050472A (en) * | 1989-09-22 | 1991-04-03 | 株式会社东芝 | Power-supply system |
-
1995
- 1995-08-11 CN CN95109223A patent/CN1042685C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728808A (en) * | 1985-03-13 | 1988-03-01 | Bet Esh Ran | Uninterruptible power supply system |
| CN1050472A (en) * | 1989-09-22 | 1991-04-03 | 株式会社东芝 | Power-supply system |
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| CN1143277A (en) | 1997-02-19 |
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