CN2393249Y - Power change-over on-line unintermittent switch power-supply apparatus - Google Patents
Power change-over on-line unintermittent switch power-supply apparatus Download PDFInfo
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- CN2393249Y CN2393249Y CN 98250493 CN98250493U CN2393249Y CN 2393249 Y CN2393249 Y CN 2393249Y CN 98250493 CN98250493 CN 98250493 CN 98250493 U CN98250493 U CN 98250493U CN 2393249 Y CN2393249 Y CN 2393249Y
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Abstract
The utility model relates to a power change-over on-line type unintermittent switch power supply apparatus. The utility model is characterized in that a high-voltage switch loop and a low-voltage switch loop which are connected with a peripheral circuit in the same way are controlled by a pulse width modulation controller; a battery pack which is connected in parallel with an isolating diode and a current limiter is connected with a low-voltage switch through a direct current winding of a main power transformer, so that a direct current discharging and charging circuit can be formed; an overpower protection circuit is composed of a thyristor, a sampling voltage stabilizing diode which is controlled by the thyristor, a photoelectric tube and a pulse width modulation oscillating loop; a normally open arm of a single-pole relay is connected in series with a relay and a relay controller in a high-voltage direct current input loop, so that an alternating current/direct current energy change-over circuit is formed; a high voltage output circuit is composed of a double-pole relay, a low-pass filter and a relay controller. The power supply apparatus has the advantages of simple circuit, small size, high efficiency, reliability and practicality.
Description
The utility model belongs to a kind of switching power unit, is specifically related to a kind of energy and switches online uninterrupted switch power supply device.When AC (interchange) just often, by AC output energy, and when AC reduces to certain set point or outage, provide output to the electrical appliance circuit by battery, provide high-voltage DC power supply to outside electrical equipment (as display etc.), make electrical appliance acquisition uninterrupted power supply.
The embodiment (hereinafter to be referred as " complementary power supply ") that ZL94221822.1 has announced a kind of " the online uninterrupted switch power supply device of intelligent energy complement ", this uninterrupted switch power supply device:
1. the power unit circuit of " complementary power supply " distributes and is: AC (interchange) switch loop places the primary side of main power transformer, and DC (direct current) switch loop, transfer wide control etc. to place the secondary end of main power transformer, for at the beginning of the AC end and the circuit of DC end must not get in touch destroy main power transformer, the safe buffer action of inferior inter-stage, therefore AC switch-actuated signal and feedback signal all take the transformer lotus root to close mode, AC starts employing optocoupler control start battery, consequently transformer coupledly introduced inductive component to circuit, make AC, the DC switch can not be synchronous fully, and switching waveform is undesirable, switching tube temperature rise and easy the burning; And when AC starts, be not that AC directly provides energy, but enabling signal only is provided, energy is provided by battery, so when not having battery or cell voltage not enough, AC can not start.
2. what the power conversion mode of " complementary power supply " adopted is: when AC drops to certain set point, battery charging voltage will be lower than cell voltage, so battery discharge, thereby reach the purpose of complementation.But charging voltage (32V) is in fact much higher than cell voltage (24V), moreover cell voltage neither a fixed value, and the control of the wide voltage stabilizing of device output modulated, when AC voltage reduces, transfer wide voltage stabilizing circuit with regulated output voltage, charging voltage is exported by voltage stabilizing equally.Only under output voltage situation serious out of control, charging voltage can be lower than cell voltage, but this moment output voltage can not satisfy electrical appliance needs---i.e. output is interrupted.
The protective circuit of " complementary power supply " and the wide voltage stabilizing circuit of accent are all comparatively complicated in addition, have increased difficulty to batch process.
The purpose of this utility model is to provide that a kind of cost is low, volume is little, efficient is high, and the energy of the simple and reliable practicality of circuit switches online uninterrupted switch power supply device.
Energy of the present utility model switches online uninterrupted switch power supply device, comprises the high pressure importation of being made up of input, switch, protection, EMI filter rectification, isolation, the switching of AC/DC energy, low-pass filter circuit, sequential circuit; Compose in parallel low pressure input and charge circuit part by battery pack through an isolating diode and flow restricter; Form the high pressure output by a double-pole relay and the relay-operated controller of controlling this relay; Form the high-voltage switch gear loop by AC startup and AC switch loop; Main power transformer; By the low tension switch loop that DC starts and DC switch loop is formed; By transferring wide sampling and transferring wide controller to form and transfer wide voltage stabilizing control section; The low-voltage direct output of forming by the low-voltage filter rectification; The operating state indicating section of forming by bi-colour LED and buzzing generator;
It is characterized in that:
Being connected in low pass filter by a high-pressure electronic switch constitutes the high-voltage switch gear loop and is connected in a battery pack by a Low-voltage Electronic switch and constitutes the low tension switch loop through an isolating diode between main power transformer low pressure winding is to high pressure ground between main power transformer high pressure winding is to high pressure ground, two loops connect with described peripheral circuit in an identical manner, and transfer wide controller with being controlled by, the described high-pressure energy or the energy content of battery are closed output through main power transformer lotus root; Because AC, DC starting current all adopt diode-isolated, resistance current-limiting mode to provide, when the AC operating state, starting current is provided by the AC energy or is provided jointly by AC and battery; And when the DC operating state, starting current is provided by the energy content of battery.Mutually independently, be independent of each other, do not rely on mutually;
By a battery pack (12V+12V) through an isolating diode with after a flow restricter is in parallel along being connected to a Low-voltage Electronic switch through main power transformer DC winding and transferring wide controller control to constitute that a DC is put, charging circuit with being controlled by; When civil power is lower than certain set point, described battery enters discharge condition, its energy is through described electronic switching, close output through main power transformer lotus root, being connected to a rectifier diode through a current limliting pressurizer along described main power transformer DC winding by a battery forms the loop and constitutes the DC charge circuit, when AC voltage just often, through the current limliting voltage stabilizing, after filtering, battery pack is charged again, discharge and recharge with filtering after the first current limliting of a Transformer Winding and charging current, thereby reduced the power consumption of current-limiting circuit;
Be connected to 4N35 photoelectric tube collector electrode by a controllable silicon and controlled stage sampling voltage stabilizing didoe thereof, and its anode is connected to power supply through a resistance, a diode is connected to transfers wide oscillation circuit, and constitutes the overpower protection circuit; When the load absorbed power surpasses set point, described 4N35 photoelectric tube collector voltage will be higher than described sampling voltage stabilizing didoe voltage stabilizing value, protective circuit will start, and device is quit work fully, be different from " complementary power supply " fully and utilize comparator to realize the tired lock mode of protective circuit;
The relay-operated controller that the AC/DC energy commutation circuit of described formation high pressure input seals in the relay of described high voltage direct current input circuit by the through arm of a hilted broadsword relay and controls this relay is formed; When the CA energy shortage, cut off the AC power supply circuits, impel DC to enter discharge condition, avoided AC to reduce to when critical, the device output voltage be interrupted may;
Described high-voltage output circuit is that two normal open end points by a double-pole relay are connected to 220V and exchange, and two Chang Kaiduan point connects the low pass filter two ends, and two lever arms are drawn high pressure output and controlled the high-voltage output circuit that aforesaid relay-operated controller is formed of this relay.Relay need not adhesive when high pressure is output as alternating current 220V, when AC just often, exchanging output is to obtain the output of AC voltage by the normal open end of relay, even also can operate as normal when not having battery.
The utility model course of work is as follows:
When AC (civil power) just often, the AC energy is by rectifying and wave-filtering, provides energy through the through arm end of a relay to AC switch loop, by on-off action, energy reaches each winding of transformer by main power transformer, behind rectifying and wave-filtering, provides energy to load again.This moment, battery obtained rechargeable energy by the main power transformer winding and the current limliting loop in DC switch loop, and high pressure output then is taken to AC by another two keys relay through arm end and obtains.
When AC is lower than certain set point or outage, the control relay circuit upset, the AC current supply circuit is cut off in the relay adhesive.Impel battery to enter discharge condition automatically,, contain AC loop winding, provide energy to load through rectifying and wave-filtering through each winding of main power transformer by the DC on-off action.Owing to another relay also synchronization action, the output of switching high pressure is taken to a little puts described low pass filter two ends, makes high pressure and low-voltage load obtain uninterrupted power supply simultaneously.When AC recovers just often, control relay circuit is counter to overturn, and relay tip recovers reset condition, and circuit recovers the AC operating state.No matter and AC or DC operating state, as long as load is overweight in set point or short circuit or under the DC operating state, when cell voltage is lower than set point, protective circuit will start, shutoff device remains static it.Stopcock K2 protective circuit can reset at once.
AC of the present utility model, DC switch loop and transfer between the wide controller and transfer the coupled modes between wide controller and AC, the DC all to adopt the direct-coupled mode of resistance, not only simplified circuit, and avoided participating in of inductance component, guaranteed AC, that the DC switch reaches waveform synchronously is closely idealized.
Because the method for designing of having taked energy to switch promptly when AC voltage is reduced to certain set point or outage, is cut off the AC current supply circuit by relay and forced the battery to enter discharge condition, avoided AC to reduce to the possibility of device output interruption when critical.
Because when the AC operating state, two relays are all put non-attracting state, and AC, DC two loops are independent fully, all can work independently, and do not rely on mutually.
Overpower protection device and the shared sampling of the wide controller of accent, isolation, amplification system, not only circuit is simple, and not only power output is shielded, and can also shield to the battery discharge overcurrent
Below in conjunction with accompanying drawing the circuit theory that the utility model energy switches online uninterrupted switch power supply device is described further:
Fig. 1 is the circuit block diagram that the utility model energy switches online uninterrupted switch power supply device.
Fig. 2 A, 2B, 2C are the circuit theory diagrams of an embodiment of the utility model.
Shown in Fig. 2 A by (101) to (108), AC (220V) input and high-voltage output circuit that (109), (110) are formed, wherein (101) to (105), (108) they are typical custom circuits.When AC just often, (109) J2 relay is failure to actuate; To (110) output, also be failure to actuate simultaneously by (107) J1 relay by J2 relay normal open end points for AC voltage, and AC voltage is connected to (110) P2 high-voltage output end by J2 relay through arm, and (107) J1 relay also is failure to actuate, and AC work loop is switched on; When AC is lower than certain set point, relay-operated controller (501) upset, and output dc voltage makes the Q1 conducting, and to making the adhesive of (109) J2 relay, high pressure output is taken to a little the two ends that are changed to (108) C7, provides high voltage direct current to export energy by battery.The AC current supply circuit is cut off in also adhesive of (107) J1 relay simultaneously, forces battery to enter discharge condition automatically; (106) D5 isolating diode partition by (108) C7 low-pass filtering counter awarding of electric capacity stored voltage (501) R36 sample circuit, destroys the correct sampling of (501) relay-operated controller before (107) J1 actuating of relay.
In the AC high-voltage switch gear loop of being formed by (202), (203) shown in Fig. 2 B, at AC just often, connect K switch 1, K2 interchange voltage warp (203) R02, D06 after rectification and provide starting current to (303) LM3842 7 pin, LM3842 6 pin output voltages add to the M2 switching tube through R020, D013, make its conducting.Its impulse current arrives ground through R22, and adds to (303) LM3842 3 pin by R023, and (303) IC3 produces the switch vibration, and to making M2 enter on off state, its energy is transformer coupled secondary to each by (201), and energy is exported.Rectifier diode when wherein, D15 is damper diode and high voltage direct current output.C41, R07 are the cut-off current absorption circuits.R023 is the overcurrent protection sampling resistor.C13 is the start buffer capacitor.R020 is a switch driving pulse current-limiting resistance.D013 is that the switching pulse rising edge promotes diode.R02, D06 are that the AC starting current provides circuit, and wherein D06 is an isolating diode, and anti-locking apparatus is under the situation of lengthy warehousing, and battery passes through R02, R36, R011 leakage current over the ground.
As in DC (battery) the charge and discharge loop of forming to (405) by (401) shown in Fig. 2 B, when AC voltage is lower than certain set point, because the AC current supply circuit is cut off in the adhesive of (107) J1 relay, the charging voltage that the I3 winding of (201) main power transformer is provided disappears or is lower than (405) cell voltage, (405) battery through the I3 of D7, transformer winding along forming discharge loop over the ground through Q2, S, the D utmost point and R016//R017.The switch-actuated pulse is taken out from (303) IC36 pin by R7, adds to the Q2 G utmost point, makes the DC loop enter on off state, and wherein the energy content of battery is through each the winding output of main power transformer; When normal and AC loop works is on off state when AC voltage, the electromotive force of respond on the main power transformer winding I3, suitable through R13 current limliting 7812 and Z2 voltage stabilizing after the D6 rectification, again through isolating diode D4 to battery charge, the formation charge circuit.
As shown in Fig. 2 C by the wide control loop of accent that (301)～(305) are formed in, connect K1, during the K2 switch, no matter be AC (203) or DC (402) or DC and the common starting current of AC, C14 is charged, when being charged to greater than 9V, IC3 starts, (202) M2 and (401) Q2 conducting, the impulse current of M2 or Q2 (looking the AC operating state still is the DC operating state) feeds back to 3 pin of IC3 through the D utmost point, (303) IC3 enters the switch oscillatory regime at this moment, wherein frequency of oscillation is by R27, C017 control, (201) transformer is paid the fluctuation output voltage of the induction on limit, through (305) R42 and R44, the VR2 dividing potential drop, the R43 sampling, add to IC5 and compare the luminous quantity that removes control IC 2 light-emitting diodes after difference is amplified through it, it couples light to the B utmost point of the phototriode of IC2, and light converts to, through amplifying, by the output of the E utmost point, add to pulse width control pin 2 pin of IC3 through R29, thereby realize reaching the purpose of voltage stabilizing output by the duty ratio of adjusting switching pulse.Adjust VR2 and can change the sampling reference point, thereby change output voltage amplitude.When the dc output end load increases the weight of, by (305) sampling IC2 phototriode C electrode current is reduced, the C pole tension raises.When load increases the weight of to certain set point, adjust VR1 and can make the C pole tension be higher than Z5 (6V3) conducting voltage, make the SK1 controllable silicon saturated; thereby make the vibration of IC3-4 pin by isolating diode D17 shorted to earth; vibration stops, and is output as 0V, thereby reaches the purpose of overpower protection.R33 provides to SK1 and keeps the conducting electric current.By the filter circuit of pressure-stabilizing that R24, C15, Z05 constitute, guarantee the stability of protective circuit start-up point, overcome the device start and impact, cause the protective circuit misoperation.
As in the relay-operated controller as shown in Fig. 2 C part (501), AC just often, AC voltage is after rectification, through R36, R011 dividing potential drop, C40 filtering, branch pressure voltage is during greater than 24.7V, Z01 conducting, Q5 conducting saturated (C9 is for exchanging negative feedback electric capacity), Q4 ends, the output of controller no-voltage causes J1, J2 relay to be failure to actuate, and (502) and 1/2LED2 all are failure to actuate.When AC was lower than certain set point, R36 and R011 dividing potential drop were lower than 24.7V, and Q5 ends, and the Q4 B utmost point is obtained drive current by R35 from (303) IC3 7 pin, so the Q4 conducting.The Q4 C utmost point connects battery, and cell voltage is through the output of its Q4 E utmost point, and output voltage is reverse through Q1, J1, the adhesive of J2 relay, so the buzzing generator through the R37 current limliting, C23 filtering obtains operating voltage, enters operating state, buzzer DY1 sounds a buzzer.Prevent (501) when stopping to export, the anti-Q1 of adding to of the voltage on the C23 postpones its action.D8 is a device when working in DC (battery) state, and the SK1 protection starts after D8 cuts off (501) output.
Claims (1)
- A kind of energy switches online uninterrupted switch power supply device, comprises the high pressure importation of being made up of input, switch, protection, EMI filter rectification, isolation, the switching of AC/DC energy, low-pass filter circuit, sequential circuit; Compose in parallel low pressure input and charge circuit part by battery pack through an isolating diode and flow restricter; Form the high pressure output by a double-pole relay and the relay-operated controller of controlling this relay; Form the high-voltage switch gear loop by AC startup and AC switch loop; Main power transformer; By the low tension switch loop that DC starts and DC switch loop is formed; By transferring wide sampling and transferring wide controller to form and transfer wide voltage stabilizing control section; The low-voltage direct output of forming by the low-voltage filter rectification; The operating state indicating section of forming by bi-colour LED and buzzing generator;It is characterized in that:Being connected in low pass filter by a high-pressure electronic switch constitutes the high-voltage switch gear loop and is connected in a battery pack by a Low-voltage Electronic switch and constitute the low tension switch loop through an isolating diode between main power transformer low pressure winding is to high pressure ground and connect with described peripheral circuit in an identical manner between main power transformer high pressure winding is to high pressure ground, and transfer wide controller with being controlled by, the described high-pressure energy or the energy content of battery are closed output through main power transformer lotus root;By a battery pack (12V+12V) through an isolating diode with after a flow restricter is in parallel along being connected to a Low-voltage Electronic switch through main power transformer DC winding and transferring wide controller control to constitute that a DC is put, charging circuit with being controlled by;Be connected to 4N35 photoelectric tube collector electrode by a controllable silicon and controlled stage sampling voltage stabilizing didoe thereof, its anode is connected to power supply through a resistance, and a diode is connected to transfers wide oscillation circuit, and constitutes the overpower protection circuit;The AC/DC energy commutation circuit of described formation high pressure input seals in the relay of described high voltage direct current input circuit by the through arm of a hilted broadsword relay and controls the AC/DC energy commutation circuit that the relay-operated controller of this relay is formed;Described high-voltage output circuit is to be connected to 220V by a double-pole relay and two normal open end points to exchange, and two Chang Kaiduan point connects the low pass filter two ends, and two lever arms are drawn high pressure output and controlled the high-voltage output circuit that aforesaid relay-operated controller is formed of this relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250493 CN2393249Y (en) | 1998-12-15 | 1998-12-15 | Power change-over on-line unintermittent switch power-supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250493 CN2393249Y (en) | 1998-12-15 | 1998-12-15 | Power change-over on-line unintermittent switch power-supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2393249Y true CN2393249Y (en) | 2000-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98250493 Expired - Fee Related CN2393249Y (en) | 1998-12-15 | 1998-12-15 | Power change-over on-line unintermittent switch power-supply apparatus |
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| Country | Link |
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| CN (1) | CN2393249Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683356A (en) * | 2012-09-20 | 2014-03-26 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Online uninterruptible power supply topology |
-
1998
- 1998-12-15 CN CN 98250493 patent/CN2393249Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683356A (en) * | 2012-09-20 | 2014-03-26 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Online uninterruptible power supply topology |
| WO2014044089A1 (en) * | 2012-09-20 | 2014-03-27 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | On-line uninterrupted power supply topology |
| CN103683356B (en) * | 2012-09-20 | 2015-10-21 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | On-Line UPS topology |
| US9819221B2 (en) | 2012-09-20 | 2017-11-14 | Eaton Corporation | Online uninterruptible power supply topology |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: WANG BAOGUO TO: BEIJING AOSHIKANG POWER SCIENCE DEVELOPMENT CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Beijing city Friendship Hotel Haidian District North South 1 layer 1-2 a kindergarten school Patentee after: Beijing proud Power Technology Development Co., Ltd. Address before: Shenzhen Liantang Industrial Zone 706 Building 2 floor Patentee before: Wang Baoguo |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing proud Power Technology Development Co., Ltd. Document name: payment instructions |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |