CN2322302Y - UPS power source without inverter - Google Patents

UPS power source without inverter Download PDF

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Publication number
CN2322302Y
CN2322302Y CN 97241194 CN97241194U CN2322302Y CN 2322302 Y CN2322302 Y CN 2322302Y CN 97241194 CN97241194 CN 97241194 CN 97241194 U CN97241194 U CN 97241194U CN 2322302 Y CN2322302 Y CN 2322302Y
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opt
power supply
voltage
negative pole
output
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郁百超
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Abstract

The utility model relates to a UPS power source without an inverter. The UPS power source without an inverter is provided with a radio frequency filter, a rectifier filter, and an accumulator. The output terminal of the rectifier filter is provided with a compensated voltage regulator. The voltage regulator comprises a switch power source and a testing circuit. The utility model has the advantages that the structure is simple, the energy is saved, the service performance is excellent, the UPS power source without an inverter is convenient in use, etc. The UPS power source without an inverter is a replacing product which can replace the AC UPS powder source.

Description

No-reverse change device uninterrupted power supply
The utility model is a kind of no-reverse change device uninterrupted power supply.
The field current, that all are relevant with information, for example digital communication, Financial Management, office automation, various real-time control system, computer network and information superhighway etc. are all in develop rapidly.Safe, accurately and stable in order to ensure data, the subscriber equipment in this field has all adopted the uninterrupted power supply that contains inverter.The block diagram of the two connection is as shown in Figure 1: left side frame of broken lines is a uninterrupted power supply, comprise radio-frequency filter, rectifier filter, storage battery and inverter, inverter is the core or the heart component of the popular uninterrupted power supply in the world today, and having to subscriber equipment provides function continual, constant frequency and constant voltage power supply.The right frame of broken lines is a subscriber equipment, comprises rectifier filter, DC converter and circuitry plate.Middle strokes and dots wire frame comprises the inverter of uninterrupted power supply and the rectifier filter of subscriber equipment, what be input to this wire frame left side is the 300V direct voltage, still the 300V direct voltage of wire frame the right output from then on, does this mean that inverter and rectifier filter in this wire frame are unnecessary? based on following reason, answer is: unnecessary, should remove.
The one, design unreasonable, cause electric energy loss: the various advanced technologies of the not at all easy employing of the inverter of uninterrupted power supply, the 300V direct voltage of civil power behind rectifying and wave-filtering is reverse into the 220V alternating voltage of frequency-and voltage-stabilizing, but this alternating voltage one enters subscriber equipment, and the rectifier filter of this equipment carries out the opposite conversion-220V AC voltage conversion the is become direct voltage of 300V again at once.As everyone knows, energy becomes another kind of form from a kind of formal argument, and always some energy consumes in conversion process, and promptly the conversion efficiency perseverance is less than 1, and this is natural objective law, and the conversion of electric energy is no exception.On inversion and these two unnecessary transform parts of rectification, electric energy loss about 25%.
The 2nd, inverter cost height, complex process, it is difficult to make, and requirement on devices is tight.
The 3rd, machine volume is big, heaviness.
The purpose of this utility model is the defective that overcomes above-mentioned prior art, provide a kind of simple in structure, cost is low, energy-conservation and be convenient to the no-reverse change device uninterrupted power supply making, apply, it can replace ac uninterrupted power supply.
The purpose of this utility model realizes with following technical proposals: be provided with radio-frequency filter, rectifier filter, storage battery, be connected to compensated regulator at the output of rectifier filter, this pressurizer comprises Switching Power Supply and testing circuit.
Above-mentioned Switching Power Supply can comprise charge switch power supply, output Switching Power Supply and auxiliary switching power supply, and the above two respectively are connected to a photoelectricity coupling testing circuit.Above-mentioned testing circuit also comprises SCR control circuit, over-voltage detection circuit, undervoltage detection circuit, accumulator protecting and a charging circuit.
Operation principle of the present utility model is: the direct voltage of civil power behind radio frequency, rectifying and wave-filtering, or civil power when interrupting from the direct voltage of storage battery, after the voltage compensation voltage stabilizing, offer subscriber equipment.The voltage compensation voltage stabilizing be with a lower and adjustable DC voltage (be bucking voltage, be superimposed upon on the input voltage of fluctuation, form stable output voltage, the power of bucking voltage only account for power output 10% in.
The utility model is owing to exempted inverter, and its power output adopts the compensation voltage stabilizing method to provide, so following advantage is arranged:
One, simple in structure.Thereby cost is low, is 10～25% of prior art approximately; Volume is little, in light weight, be approximately same capability existing uninterrupted power supply 15%.
Its two, energy-conservation.The electric energy loss of adopting compensated regulator only is to adopt 10% of the electric energy loss of inverter.
Its three, the serviceability excellence.The one, be direct voltage because of what export, the part of circuit output is connected to big capacity electrolytic capacitor, thus have very strong overload capacity and tolerance heavy current impact, and the problem that does not have the frequency shakiness.The 2nd, can reduce various electromagnetic interference effectively, thereby improve power supply quality.The 3rd, reliable, the mean free error time increases.The 4th, utilance and the useful life that can improve storage battery effectively.
Its four, easy to use.Both but unit uses, again can be simply in parallel, standby each other by cable, and need not phase-locked synchronous.Like this, can solve the strange land subscriber equipment needs to increase the problem of power supply capacity because of certain reason causes load variations, thereby has saved investment and the time of changing power-supply device for the user.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing thereof.
Fig. 1 is uninterrupted power supply circuit block diagram and this power supply and the subscriber equipment connection diagram that contains inverter.
Fig. 2 is the utility model circuit block diagram and itself and subscriber equipment connection diagram.
Fig. 3 is a physical circuit schematic diagram of the present utility model.
Before illustrating, Fig. 1 narrates the Therefore, omited.
Composition of the present utility model is as shown in Figure 2: except that the radio-frequency filter, rectifier filter and the storage battery E that comprise with prior art, also comprise compensated regulator, be connected on the output of rectifier filter.Compensated regulator is provided with Switching Power Supply and testing circuit, the strokes and dots wire frame in the middle of being positioned at, and it has replaced the excusable part among Fig. 1---the rectifier filter of inverter and subscriber equipment.What the utility model was exported is continual, galvanic current source, offer subscriber equipment, and this equipment can save rectifier filter.
Physical circuit of the present utility model is as shown in Figure 3: because the inductance element ID that high frequency magnetic core is made 1To ID 6With the radio-frequency filter of electric capacity composition, and rectifier bridge BR 1With electrolytic capacitor C 16, BR 2With electrolytic capacitor C 16The rectifier filter of forming, so the same prior art of content is enumeration no longer.Following enumeration compensated regulator circuit.
The Switching Power Supply of compensated regulator comprises charge switch power supply SW 1, output Switching Power Supply SW 2With auxiliary switching power supply SW 3, SW 4, both effects of back are to provide working power to the above two.The testing circuit of this pressurizer is made up of photoelectronic coupler spare OPT and peripheral cell thereof, wherein, and photoelectronic coupler spare OPT 2, OPT 3And OPT 1Respectively be connected to the circuit of a triode, the above two respectively and SW 1, SW 2Form charge compensate pressurizer, output compensated regulator, the latter constitutes the control circuit of controllable silicon SCR, and the above two element and annexation basically identical, just the role difference.
Concrete annexation is asked for an interview Fig. 3: SW 1, SW 2, SW 3, SW 4Input one end and E, C 15, C 16Three's positive pole connects altogether, SW 1, SW 3The input other end and SW 1Export a termination C 15Negative pole, SW 1Export another termination adjustable resistance W 2Central contact and through R 8Succeed electrical equipment RL 3Normally opened contact, diode D 1Negative pole.C 15, C 16Be attempted by rectifier bridge BR respectively 1, BR 2Output, C 16Negative pole meets D 2Negative pole, D 1Positive pole meets SCR negative pole C 16Voltage-Vr2 and SW 2Voltage-Vc2 form the VD-Vo of compensated regulator jointly, this voltage-Vo connects the rectifier filter or the DC converter of subscriber equipment.SW 2, SW 4The input other end and SW 2Export a termination SCR, D 2Positive pole, SW 2Export another termination W 3Central contact.SW 1, SW 2Detection line respectively through R 7, R 12Meet triode T 2, T 3Expelling plate.
OPT 1Light-emitting diode, its positive pole is through R 1Meet timing circuit U 1Pin 3, its negative pole is through W 1Ground connection.OPT 1Transistor collector meets R 3, T 1Collector electrode C 1Positive pole and voltage-stabiliser tube DZ 1Negative pole.R 3Another termination E positive pole, C 1Negative pole connects the SCR control utmost point.DZ 1Anodal through R 10Meet T 1Emitter is through R 2Meet OPT 1Transistor emitter and T 1Base stage.
OPT 2Light-emitting diode, its positive pole meets RL 3Normally opened contact, and through R 4, W 12Connect the E positive pole; Its negative pole meets W 2E is anodal through big electric current A.C. contactor J 1Coil, RL 1Normally opened contact connects the SCR negative pole, and the E negative pole is through J 1Normally-closed contact, quick fuse fuse F 3Meet D 1Anodal.OPT 2Triode, its collector electrode meets T 2Collector electrode and SW 3Output one end, its emitter meets T 2Base stage and through R 5, R 6Meet T 2Emitter.R 5, R 6The serial connection point meet SW 3The output other end
OPT 3The light-emitting diode positive and negative electrode meet R respectively 8, W 3, R 9Another termination E positive pole and F 1OPT 3Transistor collector, emitter, meet T respectively 3Collector electrode, base stage.T 3Base stage is through R 10, R 11Meet T 3Emitter.SW 417,12 volts output voltage is arranged: the positive and negative electrode of 17 volts of voltages meets timing circuit U respectively 4Pin 8, the positive pole of 1,12 volt of voltage of pin, meet T 3Collector electrode and OPT 3The collector electrode of triode; Negative pole then meets R 10, R 11The serial connection point
In the testing circuit of the present utility model, also comprise charging and the protective circuit of under-voltage detection, storage battery E, overvoltage detects, and they are respectively by photoelectronic coupler spare OPT 4, OPT 5And OPT 6, OPT 7Respectively be connected to a timing circuit U 1, U 2, U 3, U 4OPT 4, OPT 5, OPT 6The light-emitting diode positive pole, respectively through R 14, R 18, R 18Connect the E positive pole.OPT 4The light-emitting diode negative pole through W 4Meet C 15Negative pole.OPT 5The light-emitting diode negative pole through W 6, W 8Meet OPT 8The light-emitting diode negative pole.W 8, W 8The serial connection point meet D 1Anodal.OPT 7Light-emitting diode, its negative pole is through W 10Meet D 2Negative pole; Its positive pole is through R 21Meet C 15Anodal.OPT 4, OPT 5, OPT 6And OPT 7, its transistor emitter is respectively through R 13, R 15, R 17And R 20Ground connection, and respectively through W 5, W 7, W 9And W 1Meet U 1, U 2, U 3And U 4Pin 2,6; Its transistor collector and U 1, U 2, U 3, U 4Pin 4,8 connect altogether.U 2Pin 7 is through RL 3Coil meets U 2Pin 8, U 4Pin 7 is through RL 2Coil meets U 4Pin 8.Pin 1 ground connection of four timing circuits.U 3Pin 3 is through RL 1Coil meets U 4Pin 8.
Above-mentioned SW 1, SW 2, SW 3, SW 4Be the commercially available prod, SW wherein 1, SW 2Can buy from the market according to 10% of power output.OPT 1, OPT 2, OPT 3, OPT 4, OPT 5, OPT 6And OPT 7Can adopt 4N25 or 4N33 model.Timing circuit U 1, U 2, U 3And U 4Can adopt models such as NE555.
The course of work of the present utility model is as follows:
One, whole working
When civil power just often, civil power is by switch S 1Insert, through J 2Normally-closed contact enter the two-way radio-frequency filter after, obtain the alternating voltage of two-way cleaning, pass through the full-wave rectifier filter device again after, obtain about 300 volts of direct voltage-Vr1 and-Vr2.-Vr1 makes OPT 4The light-emitting diode two ends big electric current, OPT are arranged 4The triode conducting, U 1So pin 3 output low levels are OPT 1The light-emitting diode no current makes T 1End, SCR turn-offs.-Vr1 is through SW 1Carry out obtaining galvanic current pressure-Vo1 after the voltage compensation voltage stabilizing, pass through resistance R 8And D 1To charge in batteries, meanwhile ,-Vr2 is through D 2Arrive the H point.
When civil power interrupts ,-Vr1 ,-Vr2 is zero, OPT 4The light-emitting diode two ends throw and to have electric current to flow through, make OPT 4Triode end U 1Pin 3 output high level, OPT 1Light-emitting diode has electric current, so T 1Conducting, SCR is conducting also, and at this moment, the voltage of E is added to the H point by SCR.
Arrive the voltage that H is ordered, or be commutating voltage, or be battery tension, this two-way voltage all is fluctuation voltage: the former changes with civil power fluctuates, and the latter descends with the increase of discharge time, and fluctuation voltage passes through SW 2After carrying out the voltage compensation voltage stabilizing, obtain galvanic current pressure-Vo2.-Vo2 is exactly the output voltage-Vo that offers subscriber equipment.
When city power recovery normal moment ,-Vr2 passes through D 2Arrive the H point.At this moment, the SCR both end voltage is very approaching, and the electric current that passes through is less than its holding current, and SCR automatically shuts down, so the voltage of E is cut off, returns to civil power mode of operation just often.
Interrupt battery tension arrival H from civil power and order during this period of time, be mains-supplied to battery-driven change-over time, it is decided by that SCR by the time of turn-offing conducting, is approximately 40 microseconds.
Two, the compensated regulator course of work
1, output compensated regulator
Pressurizer is repaid in output, and its input voltage is-voltage of Vr2 or E, its output voltage is-Vo2 just to offer the output voltage-Vo of subscriber equipment.Regulate W 3, can change OPT 3Led current, promptly change T 3Emitter voltage, in fact this regulated SW 2Output voltage-Vc2 (being bucking voltage)-Vc2 and-Vr2 stack, make the output voltage-Vo that offers subscriber equipment remain set point.
When city's electro-mechanical wave or load change cause-when Vo descends, flow through OPT 3Led current reduce, make T 3The emitter current potential reduce, the current potential of this reduction passes through R 12Enter SW 2After, SW 2The internal regulation circuit rises output voltage-Vc2, promptly-and the Vo rising.Otherwise, when city's electro-mechanical wave or load change cause-when Vo rose, adjustment process was similar.
2, charge compensate pressurizer, its course of work is with the output compensated regulator
3, testing circuit
(1) overvoltage detects
OPT 7Light-emitting diode connect-Vr2, when civil power just often, U 4Pin 7 ends, RL 2Connect normally opened contact, J 2Connect normally-closed contact, when line voltage is higher than the magnitude of voltage Vamx of setting, U 4Pin 7 conductings, RL 2Action, its normally opened contact closure, J 2Control coil get electric, J 2Action, its normally-closed contact disconnects, and civil power breaks away from from circuit fully.Meanwhile, control circuit is transformed into storage battery power supply automatically, the situation when being equivalent to the civil power interruption.In the time of in civil power drops to normal range (NR), U 4Pin 7 ends, RL 2And J 2Reset, recover mains-supplied, the voltage that cuts off E simultaneously is equivalent to recover behind the mains failure situation just often.
(2) under-voltage detection
When line voltage is lower than the lower voltage limit Vmin of setting, OPT 4Led current reduces, and makes U 1Pin 3 output high level, then OPT 1Light-emitting diode by normal current, OPT 1The triode conducting, so T 1Conducting, the SCR conducting, battery tension is added to the H point by SCR, and this moment, civil power did not cut off, and both provide power output jointly.In the time of in civil power rises to normal range (NR), SCR turn-offs, and is equivalent to recover behind the mains failure situation just often.
(3) accumulator protecting
OPT 8Light-emitting diode meet E, when the voltage of E just often, U 3Pin 3 output low levels, RL 1Connect normally opened contact, J 1Connect normally-closed contact, E is in the normal power supply state.Long discharge time as E, voltage is prescribed a time limit U down near predefined 3Pin 3 output high level, RL 1Action, its normally opened contact closure, J 1Control coil get electric, J 1Action, its normally-closed contact disconnects, and E breaks away from from circuit fully.When the city power recovery powers, RL 1And J 1Reset, the E place in circuit normally discharges and recharges, the situation when being equivalent to recover normal power supply behind the mains failure.
(4) charge in batteries pattern control
OPT 5Light-emitting diode meet E, when civil power normal, the voltage of E also just often, OPT 5Light-emitting diode normal current is arranged, make U 2Pin 7 ends.RL 3Connect normally opened contact, E is in floating charge state.When the firm discharge off of E, when terminal voltage is low, pass through OPT 5The electric current of light-emitting diode is less, makes U 2Pin 7 conductings, RL 3Action, its normally opened contact closure, then OPT 2Light-emitting diode and W 2Be attempted by R behind the polyphone 8Two ends, i.e. OPT 2Sampling voltage from R 8, regulate W 2, the may command charging current.When beginning to carry out constant current charge, charging current is very big, SW 1Automatic cut-off, charging current are all provided by-Vr1, and maximum charging current is by R 8Restriction.When accumulator voltage be charged to approaching-during Vr1, SW 1Start, carry out the constant current charge of practical significance.When being charged to the high voltage of setting, U 2Pin 7 ends, RL 3Reset OPT 2Light-emitting diode and W 2And R 4, W 12Polyphone, the two ends of together receiving E, i.e. OPT 2Sampling voltage from E, automatically pass through D with the constant voltage of setting 1E is carried out floating charge, regulate W 12Can change float charge voltage.The high voltage here is greater than constant voltage, and both differences are overcharged voltage, can select according to battery characteristics.

Claims (5)

1, a kind of no-reverse change device uninterrupted power supply is provided with radio-frequency filter, rectifier filter and storage battery E, it is characterized in that being connected to compensated regulator at the output of rectifier filter, and this pressurizer comprises Switching Power Supply and testing circuit.
2, power supply according to claim 1 is characterized in that Switching Power Supply comprises charge switch power supply SW 1, output Switching Power Supply SW 2With auxiliary switching power supply SW 3, SW 4, wherein, SW 1, SW 2, SW 3, SW 4Input one end and E, C 15, C 16Positive pole meet SW altogether 1, SW 3The input other end and SW 1Export a termination C 15Negative pole, C 15, C 16Be attempted by rectifier bridge BR respectively 1, BR 2Output, C 16Negative pole meets diode D 2Negative pole, SW 1Export another termination adjustable resistance W 3Central contact and through R 3Succeed electrical equipment RL 3Normally opened contact, D 1Negative pole, D 1Positive pole meets controllable silicon SCR negative pole, SW 2, SW 4The input other end and SW 2Export a termination SCR, D 2Positive pole, SW 2Export another termination W 3Central contact, SW 1, SW 3Detection line respectively through R 7, R 13Meet triode T 2, T 3Emitter.
3, power supply according to claim 1 is characterized in that testing circuit is made up of photoelectronic coupler spare OPT and peripheral cell thereof, wherein, and OPT 2, OPT 3And OPT 1Respectively be connected to a transistor circuit, the above two respectively and SW 1, SW 2Form charge compensate pressurizer, output compensated regulator, the latter constitutes the control circuit of controllable silicon SCR.
4, power supply according to claim 3 is characterized in that in the photoelectronic coupler spare OPT 4, OPT 7, OPT 5And OPT 6Respectively be connected to a timing circuit, form charging and the protective circuit of under-voltage detection, overvoltage detection, storage battery E respectively.
5, power supply according to claim 1 is characterized in that being connected on the VD of compensated regulator on the rectifier filter or DC converter in the subscriber equipment.
CN 97241194 1997-08-20 1997-08-20 UPS power source without inverter Expired - Lifetime CN2322302Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97241194 CN2322302Y (en) 1997-08-20 1997-08-20 UPS power source without inverter

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Application Number Priority Date Filing Date Title
CN 97241194 CN2322302Y (en) 1997-08-20 1997-08-20 UPS power source without inverter

Publications (1)

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CN2322302Y true CN2322302Y (en) 1999-06-02

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CN 97241194 Expired - Lifetime CN2322302Y (en) 1997-08-20 1997-08-20 UPS power source without inverter

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001050571A1 (en) * 2000-01-03 2001-07-12 Baichao Yu Uninterrupted power supply without power loss
CN108432109A (en) * 2015-12-21 2018-08-21 标致雪铁龙汽车股份有限公司 The control device of DC/DC converters is controlled when having over-pressed or under-voltage in circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001050571A1 (en) * 2000-01-03 2001-07-12 Baichao Yu Uninterrupted power supply without power loss
CN108432109A (en) * 2015-12-21 2018-08-21 标致雪铁龙汽车股份有限公司 The control device of DC/DC converters is controlled when having over-pressed or under-voltage in circuit
CN108432109B (en) * 2015-12-21 2020-12-01 标致雪铁龙汽车股份有限公司 Control device for controlling a DC/DC converter in the presence of an overvoltage or undervoltage in the circuit

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