CN102044907A - Uninterrupted power supply (UPS) circuit realizing charge and inversion functions by adopting single transformer - Google Patents

Uninterrupted power supply (UPS) circuit realizing charge and inversion functions by adopting single transformer Download PDF

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Publication number
CN102044907A
CN102044907A CN 201110028350 CN201110028350A CN102044907A CN 102044907 A CN102044907 A CN 102044907A CN 201110028350 CN201110028350 CN 201110028350 CN 201110028350 A CN201110028350 A CN 201110028350A CN 102044907 A CN102044907 A CN 102044907A
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CN
China
Prior art keywords
transformer
control switch
ups
storage battery
circuit
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201110028350
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Chinese (zh)
Inventor
王琳基
王研兆
王志雄
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Fujian Agriculture and Forestry University
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Fujian Agriculture and Forestry University
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Publication date
Application filed by Fujian Agriculture and Forestry University filed Critical Fujian Agriculture and Forestry University
Priority to CN 201110028350 priority Critical patent/CN102044907A/en
Publication of CN102044907A publication Critical patent/CN102044907A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an uninterrupted power supply (UPS) circuit realizing charge and inversion functions by adopting a single transformer. The circuit comprises a mains supply input terminal, a 220V alternating current output terminal, a transformer with taps, a rectifier bridge, an inverter power transistor, a voltage detection control switch, a selective switch and a storage battery. The circuit is characterized in that the voltage detection control switch is connected on two lines of the mains supply input terminal in parallel; the voltage detection control switch is connected with the primary side of the transformer by a normally open contact and the selective switch; the secondary side of the transformer is connected with the input terminal of the rectifier bridge and the output terminal of the inverter circuit; the output terminal of the rectifier bridge is connected with the storage battery by a normally open contact; the input terminal of the power transistor is connected at the two poles of the storage battery in parallel; the secondary side of the transformer is connected to the voltage detection control switch by a normally open contact and a normally closed contact; and the output terminal of the UPS is led out from the common terminal of the normally open contact and the normally closed contact. The circuit realizes switching of charge and inversion functions by using the voltage detection control switch, is simple, has fewer components and has better use value.

Description

Adopt single phase transformer to realize the UPS circuit of charging and invert function
Technical field
The present invention relates to a kind of UPS circuit that adopts single phase transformer to realize charging and invert function, be applicable to UPS and have the DC-to-AC converter of charge function.
Background technology
Existing UPS device all is to adopt a transformer to be used for charging, and another transformer is used for inversion, and components and parts are many, volume is big, and product cost is improved greatly.
Summary of the invention
In view of above-mentioned technical deficiency, the purpose of this invention is to provide a kind of UPS circuit that adopts single phase transformer to realize charging and invert function, can realize charging and invert function respectively by the automatic transfer switch of a transformer.A kind of UPS circuit that adopts single phase transformer to realize charging and invert function, comprise the mains electricity input end, the 220V ac output end, the band tapped transformer, rectifier bridge, inverter power tube, the voltage detecting control switch, selector switch, storage battery, it is characterized in that: voltage detecting control switch and on two lines of mains electricity input end, the voltage detecting control switch is often opened the contact and is connected with the former limit of selector switch and transformer, and the secondary of transformer connects the input of rectifier bridge and the output of inverter circuit, the output of rectifier bridge is often opened the contact and is connected with storage battery, the input of power tube is connected in parallel on storage battery the two poles of the earth, and the secondary of transformer often opens the contact and normally-closed contact is connected to the voltage detecting control switch, the output of drawing UPS from the common port of this normally opened contact and normally-closed contact.This circuit is realized charging and the switching of invert function by the voltage detecting control switch, and circuit is simple, and device is few, has better use value.
Description of drawings
Fig. 1 is a circuit theory schematic diagram of the present invention.
Fig. 2 is the circuit diagram of the specific embodiment of the invention.
Specific embodiment
Specific embodiment adopts single phase transformer to realize the UPS circuit of charging and invert function as shown in Figure 2, comprise the mains electricity input end, the 220V ac output end, band tapped transformer T, rectifier bridge, inverter power tube Q1/Q2, resistance R, voltage detecting control switch K, selector switch SA, storage battery, wherein transformer former limit tap goes out 220V, 230V, 240V, 250V, 260V, secondary is drawn 12V, 16V two taps, voltage detecting control switch K coil and between the mains electricity input end, back two line series voltages detect two normally opened contact K of control switch, the normally opened contact normally opened contact of connecting again wherein, this normally opened contact connects charging option switch, charging option switch SA other end correspondence connects each voltage gear tap of the former side of transformer, mains electricity input end two series connection normally opened contact common ports are drawn the output as UPS, the lead-out wire crosstalk of the former side 220V of transformer end presses the normally-closed contact that detects control switch to connect mains electricity input end two series connection normally opened contact common ports again, the collector electrode of transformer secondary two termination power tube Q1/Q2, and power tube emitter two terminations are together to the negative pole of storage battery, the 12V tap connects the positive pole of storage battery, the ac input end of the 0V of transformer secondary and 16V termination rectifier bridge is connected to battery positive voltage behind the positive output end crosstalk resistance R of rectifier bridge and another normally opened contact of voltage detecting control switch, and the negative pole of storage battery is connected to the negative output terminal of rectifier bridge.Civil power just often, voltage detecting control switch normally opened contact closure, normally-closed contact disconnects, civil power charges a battery through rectification circuit, resistance R and the normally opened contact of transformer pair side 16V shelves, civil power is connected to the UPS output, utilizes civil power to give the rear end electric; This process resistance R plays the effect of restriction charging current, and the protection storage battery is provided with different no-load voltage ratios by regulating the different voltage gears in former limit, also the may command charging current; During the city electrical anomaly, voltage detecting control switch normally opened contact disconnects, the normally-closed contact closure, and civil power disconnects, and storage battery carries out inversion through the 12V inverter circuit of transformer secondary, is being connected to the UPS output by the former limit of transformer 220V shelves, is the follow-up equipment power supply.This circuit is realized charging and the switching of invert function by the voltage detecting control switch, and circuit is simple, and device is few, has better use value.

Claims (5)

1. UPS circuit that adopts single phase transformer to realize charging and invert function, comprise the mains electricity input end, the 220V ac output end, the band tapped transformer, rectifier bridge, inverter power tube, the voltage detecting control switch, selector switch, storage battery, it is characterized in that: voltage detecting control switch and on two lines of mains electricity input end, the voltage detecting control switch is often opened the contact and is connected with the former limit of selector switch and transformer, and the secondary of transformer connects the input of rectifier bridge and the output of inverter circuit, the output of rectifier bridge is often opened the contact and is connected with storage battery, the input of power tube is connected in parallel on storage battery the two poles of the earth, and the secondary of transformer often opens the contact and normally-closed contact is connected to the voltage detecting control switch, the output of drawing UPS from the common port of this normally opened contact and normally-closed contact.
2. employing single phase transformer according to claim 1 is realized the UPS circuit of charging and invert function, and it is characterized in that: the former limit tap of described transformer goes out 220V, 230V, and 240V, 250V, 260V, secondary is drawn 12V, 16V two taps.
3. employing single phase transformer according to claim 1 is realized the UPS circuit of charging and invert function, and it is characterized in that: storage battery is selected 12V plumbic acid class storage battery for use.
4. employing single phase transformer according to claim 1 is realized the UPS circuit of charging and invert function, and it is characterized in that: selector switch is selected the LW5-16F1461/5 model for use, has 5 optional switches.
5. employing single phase transformer according to claim 1 is realized the UPS circuit of charging and invert function, it is characterized in that: the type that the voltage detecting control switch is selected for use have have only at least 4 often open 1 normally closed.
CN 201110028350 2011-01-26 2011-01-26 Uninterrupted power supply (UPS) circuit realizing charge and inversion functions by adopting single transformer Pending CN102044907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110028350 CN102044907A (en) 2011-01-26 2011-01-26 Uninterrupted power supply (UPS) circuit realizing charge and inversion functions by adopting single transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110028350 CN102044907A (en) 2011-01-26 2011-01-26 Uninterrupted power supply (UPS) circuit realizing charge and inversion functions by adopting single transformer

Publications (1)

Publication Number Publication Date
CN102044907A true CN102044907A (en) 2011-05-04

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CN 201110028350 Pending CN102044907A (en) 2011-01-26 2011-01-26 Uninterrupted power supply (UPS) circuit realizing charge and inversion functions by adopting single transformer

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109193911A (en) * 2018-09-21 2019-01-11 中船澄西船舶修造有限公司 A kind of ship emergency escape guide lamp including same charged system
CN109428388A (en) * 2017-09-01 2019-03-05 硕天科技股份有限公司 Uninterrupted power supply system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218744B1 (en) * 1999-03-22 2001-04-17 Powerware Corporation Uninterruptible power supply and ferroresonant transformer for use therewith
US20040201278A1 (en) * 2003-04-11 2004-10-14 Delta Electronics, Inc. Charging circuit in uninterruptible power supply system
CN2798395Y (en) * 2005-03-25 2006-07-19 周崇坚 Full automotic power supplier
CN200944533Y (en) * 2006-08-03 2007-09-05 渤海船舶重工有限责任公司 DC uninterrupted power source

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218744B1 (en) * 1999-03-22 2001-04-17 Powerware Corporation Uninterruptible power supply and ferroresonant transformer for use therewith
US20040201278A1 (en) * 2003-04-11 2004-10-14 Delta Electronics, Inc. Charging circuit in uninterruptible power supply system
CN2798395Y (en) * 2005-03-25 2006-07-19 周崇坚 Full automotic power supplier
CN200944533Y (en) * 2006-08-03 2007-09-05 渤海船舶重工有限责任公司 DC uninterrupted power source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109428388A (en) * 2017-09-01 2019-03-05 硕天科技股份有限公司 Uninterrupted power supply system
CN109193911A (en) * 2018-09-21 2019-01-11 中船澄西船舶修造有限公司 A kind of ship emergency escape guide lamp including same charged system

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Application publication date: 20110504