JPH09308134A - Uninterruptible power supply unit - Google Patents
Uninterruptible power supply unitInfo
- Publication number
- JPH09308134A JPH09308134A JP8137469A JP13746996A JPH09308134A JP H09308134 A JPH09308134 A JP H09308134A JP 8137469 A JP8137469 A JP 8137469A JP 13746996 A JP13746996 A JP 13746996A JP H09308134 A JPH09308134 A JP H09308134A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- power supply
- transformer
- charger
- uninterruptible power
- Prior art date
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、常時商用給電方式
のＵＰＳに関わり、インバ−タ出力のトランスを含めた
インバ−タ回路の一部を蓄電池の充電回路と部品兼用し
た、小型かつ経済的な無停電電源装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a UPS of a constant commercial power supply system, and is a small and economical system in which a part of an inverter circuit including an inverter output transformer is also used as a storage battery charging circuit. Uninterruptible power supply.
【０００２】 （２） 図１は従来の無停電電源装置の回路図である。図におい
て、１は商用入力、２は充電器用トランス、３は全波整
流器、４は充電器、５は蓄電池、６はインバ−タ、７は
インバ−タトランス、８は切替えスイッチ、９は負荷で
ある。(2) FIG. 1 is a circuit diagram of a conventional uninterruptible power supply device. In the figure, 1 is a commercial input, 2 is a transformer for a charger, 3 is a full-wave rectifier, 4 is a charger, 5 is a storage battery, 6 is an inverter, 7 is an inverter transformer, 8 is a changeover switch, and 9 is a load. is there.
【０００３】商用入力１が受電中は、切替えスイッチ８
は商用側に閉じているので、商用電力がダイレクトに負
荷９に供給される。While the commercial input 1 is receiving power, the changeover switch 8
Is closed to the commercial side, commercial power is directly supplied to the load 9.
【０００４】同時に、商用電力は充電器用トランス２に
よって降圧され、全波整流器３により整流された後、充
電器４により蓄電池５を充電する。At the same time, the commercial power is stepped down by the transformer 2 for the charger, rectified by the full-wave rectifier 3, and then the storage battery 5 is charged by the charger 4.
【０００５】この時、インバ−タ６は停止しているので
蓄電池５は放電することはない。At this time, since the inverter 6 is stopped, the storage battery 5 is not discharged.
【０００６】次に停電時においては、蓄電池５を電源と
してインバ−タ６が運転して、インバ−タトランス７よ
り交流電力が出力される。切替えスイッチ８がインバ−
タ側に切り替わっているので、負荷９へはインバ−タ６
からの電力が供給される。Next, at the time of power failure, the inverter 6 is operated by using the storage battery 5 as a power source, and the AC power is output from the inverter transformer 7. The changeover switch 8 is an inverter
Since it has been switched to the inverter side, the inverter 6 is connected to the load 9.
Is supplied.
【０００７】[0007]
【発明が解決しようとする課題】このような構成の無停
電電源装置においては、充電器用トランス２やフルブリ
ッジの全波整流器３を使用しているため部品点数が多く
なり、小型化、原価低減等の点で問題があった。本発明
は、これらの問題点を解決し、小型軽量化し低価格の無
停電電源装置を提供することを目的とする。In the uninterruptible power supply having such a structure, since the transformer 2 for the charger and the full-wave rectifier 3 of the full bridge are used, the number of parts is increased, and the size and cost are reduced. There was a problem in terms of etc. An object of the present invention is to solve these problems and to provide a small, lightweight, low-cost uninterruptible power supply.
【０００８】[0008]
【実施例】図２は本発明の無停電電源装置の一実施例で
ある。図において従来技術と同一部分は同一符号を付し
てある。FIG. 2 shows an embodiment of the uninterruptible power supply device of the present invention. In the figure, the same parts as those in the prior art are designated by the same reference numerals.
【０００９】 （３） 図において、充電器用トランス２及びフルブリッジの全
波整流器３は無くなり、インバ−タの出力トランス７の
一次巻線よりハ−フブリッジの全波整流器１１を通して
充電器４に直流電圧のプラスを印加している。(3) In the figure, the charger transformer 2 and the full-bridge full-wave rectifier 3 are eliminated, and the direct current is fed from the primary winding of the inverter output transformer 7 to the charger 4 through the half-bridge full-wave rectifier 11. Positive voltage is applied.
【００１０】インバ−タ６は４個のＦＥＴ１１〜ＦＥＴ
１４がフルブリッジに構成されている。各々のＦＥＴに
は逆並列にダイオ−ドＤ１１〜Ｄ１４が接続されてい
る。逆並列のダイオ−ドＤ１１〜Ｄ１４は各々のＦＥＴ
１１〜ＦＥＴ１４のボデ−ダイオ−ドであってもよい。The inverter 6 includes four FETs 11 to FETs.
14 is configured as a full bridge. Diodes D11 to D14 are connected in antiparallel to the respective FETs. Anti-parallel diodes D11 to D14 are the respective FETs.
It may be a body diode of 11 to FET 14.
【００１１】これを動作するには、商用受電中は商用電
源１よりダイレクトに負荷９に電力を供給し、この時イ
ンバ−タ６は停止している。To operate this, the commercial power source 1 supplies power directly to the load 9 during commercial power reception, and the inverter 6 is stopped at this time.
【００１２】この時、インバ−タの出力トランス７が充
電器用トランスとなって、商用電圧が降圧されてハ−フ
ブリッジの全波整流器１１により直流電圧を作り充電器
４に印加する。At this time, the output transformer 7 of the inverter serves as a transformer for a charger, and the commercial voltage is stepped down to generate a DC voltage by the full-wave rectifier 11 of the half bridge and apply it to the charger 4.
【００１３】充電器４より蓄電池５に流れた充電電流
は、インバ−タ６の逆並列ダイオ−ド例えばボデ−ダイ
オ−ドを通してインバ−タトランス７の一次巻線に帰還
される。The charging current flowing from the charger 4 to the storage battery 5 is fed back to the primary winding of the inverter transformer 7 through the inverse parallel diode of the inverter 6, for example, the body diode.
【００１４】今、商用電源が正の半波の時、インバ−タ
トランス７の一次巻線ａ−全波整流器１１−充電器４−
蓄電池５−ボデ−ダイオ−ドＤ１４−インバ−タトラン
ス７の一次巻線ｂのル−トで電流が流れ、蓄電池５が充
電される。Now, when the commercial power source has a positive half-wave, the primary winding a of the inverter transformer 7-the full-wave rectifier 11-the charger 4-
Storage battery 5-body diode D14-Inverter transformer 7 has a route of primary winding b in which a current flows, and storage battery 5 is charged.
【００１５】次に、商用電源が負の半波の時は、インバ
−タトランスの一次巻線ｂ−全波整流器１１−充電器４
−蓄電池５−ボデ−ダイオ−ドＤ１３−インバ−タトラ
ンス７の一次巻線ａのル−トで電流が流れ、蓄電池５が
充電される。 （４）Next, when the commercial power source has a negative half-wave, the primary winding b of the inverter transformer-full-wave rectifier 11-charger 4
-Battery 5-Body diode D13-Inverter transformer 7 carries a current through the route of the primary winding a, and the storage battery 5 is charged. (4)
【００１６】この様に、本発明はインバ−タ回路の出力
トランス及びボデ−ダイオ−ド又は逆並列ダイオ−ドを
充電回路の一部に用いることができるので、従来技術の
様に充電器用トランスやフルブリッジの全波整流回路を
必要としないので回路が簡素化される。As described above, according to the present invention, the output transformer of the inverter circuit and the body diode or the anti-parallel diode can be used as a part of the charging circuit. The circuit is simplified because the full-wave rectification circuit of the full bridge is not required.
【００１７】尚、商用電源の停電中は、蓄電池５を電源
としてインバ−タ６が動作し、インバ−タトランス７を
通して負荷９に電力を供給する。During the power failure of the commercial power source, the inverter 6 operates by using the storage battery 5 as a power source and supplies power to the load 9 through the inverter transformer 7.
【００１８】本発明を実現する充電回路の具体的な一実
施例は、図３に示すようなブ−スト型コンバ−タであ
る。このコンバ−タの動作は、図２で示した全波整流器
１１よりの直流電圧がインダクタンス２１に印加され、
スイッチ素子２２がオンの時インダクタンス２１に蓄え
られたエネルギ−が、オフ時に蓄電池５に流れて充電さ
れ、インバ−タ６のボデ−ダイオ−ドを通してインバ−
タトランス７の一次巻線に帰還される。One specific embodiment of the charging circuit for implementing the present invention is a boost converter as shown in FIG. In the operation of this converter, the DC voltage from the full-wave rectifier 11 shown in FIG.
When the switch element 22 is on, the energy stored in the inductance 21 flows to the storage battery 5 to be charged when it is off, and the energy is stored in the inverter 6 through the body diode of the inverter 6.
It is fed back to the primary winding of the transformer 7.
【００１９】[0019]
【発明の効果】本発明の構成によって充電器用の降圧ト
ランスが不要となり、又、全波整流回路をフルブリッジ
からハ−フブリッジにすることが出来、無停電電源装置
全体を小型化することが出来、原価低減にもつながる。
特に、本発明は常時商用給電のＵＰＳに応用すれば、小
型化、低コストの面でその効果は極めて大きい。The structure of the present invention eliminates the need for a step-down transformer for a charger, and the full-wave rectifier circuit can be changed from a full bridge to a half bridge, and the entire uninterruptible power supply can be downsized. It also leads to cost reduction.
In particular, if the present invention is applied to a UPS for continuous commercial power supply, its effect is extremely large in terms of downsizing and cost reduction.
【図１】従来の無停電電源装置の一実施例回路図。FIG. 1 is a circuit diagram of an example of a conventional uninterruptible power supply device.
【図２】本発明の無停電電源装置の一実施例回路図。FIG. 2 is a circuit diagram of an embodiment of the uninterruptible power supply device of the present invention.
【図３】 （５） 本発明の無停電電源装置に用いられる充電器の一実施例
回路図。FIG. 3 (5) A circuit diagram of an embodiment of a charger used in the uninterruptible power supply system of the present invention.
１ 商用入力 ２ 充電器用トランス ３ フルブリッジの全波整流器 ４ 充電器 ５ 蓄電池 ６ インバ−タ ７ インバ−タトランス ８ 切替えスイッチ ９ 負荷 １１ ハ−フブリッジの全波整流器 ＦＥＴ１１〜１４ インバ−タ用ＦＥＴ Ｄ１１〜１４ ＦＥＴと逆並列のダイオ−ド又はボデ−
ダイオ−ド ２１ インダクタンス ２２ スイッチ素子1 Commercial input 2 Transformer for charger 3 Full-wave rectifier for full bridge 4 Charger 5 Storage battery 6 Inverter 7 Inverter transformer 8 Changeover switch 9 Load 11 Full-wave rectifier for half bridge FET 11-14 Inverter FET D11- 14 FET or anti-parallel diode or body
Diode 21 Inductance 22 Switch element
Claims (4)
ランスと商用電源とが並列接続され、前記商用電源が受
電中は前記インバ−タは停止し、該商用電源から負荷に
電力を供給し、前記商用電源の停電時は前記蓄電池を電
源として、前記インバ−タより負荷に電力供給する無停
電電源装置に於いて、 前記商用電源を受電中は、前記インバ−タの出力トラン
スを通して前記商用電源の電力が入力され、かつ、全波
整流器によって整流された直流電力が充電器に供給さ
れ、前記充電器により前記蓄電池を充電する様に構成さ
れた充電回路が付加されている事を特徴とする無停電電
源装置。1. An output transformer of an inverter having a storage battery as an input and a commercial power source are connected in parallel, the inverter is stopped while the commercial power source is receiving power, and power is supplied from the commercial power source to a load. In an uninterruptible power supply device that supplies power to the load from the inverter using the storage battery as a power source during a power failure of the commercial power source, while the commercial power source is being received, the commercial transformer is output through the output transformer of the inverter. The power of the power source is input, and the DC power rectified by the full-wave rectifier is supplied to the charger, and a charging circuit configured to charge the storage battery by the charger is added. Uninterruptible power supply that does.
て、前記充電回路は、前記インバ−タの出力トランス１
次巻線に全波整流ダイオ−ドを構成して直流入力とし、
インバ−タを構成するＦＥＴの逆並列ダイオ−ドを通し
て帰還する様に閉ル−プ回路が構成されている事を特徴
とする無停電電源装置。2. The uninterruptible power supply unit according to claim 1, wherein the charging circuit is an output transformer 1 of the inverter.
A full-wave rectification diode is configured in the next winding to provide DC input,
An uninterruptible power supply device characterized in that a closed loop circuit is constructed so as to feed back through an anti-parallel diode of an FET constituting an inverter.
て、ＦＥＴの逆並列ダイオ−ドは、前記ＦＥＴのボデ−
ダイオ−ドである事を特徴とする無停電電源装置。3. The uninterruptible power supply device according to claim 2, wherein the FET anti-parallel diode is a body of the FET.
An uninterruptible power supply characterized by being a diode.
電電源装置に於いて、前記充電器はブ−スト形コンバ−
タで構成されている事を特徴とする無停電電源装置。4. The uninterruptible power supply device according to claim 1, wherein the charger is a boost type converter.
An uninterruptible power supply characterized by being configured with a
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8137469A JPH09308134A (en) | 1996-05-07 | 1996-05-07 | Uninterruptible power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8137469A JPH09308134A (en) | 1996-05-07 | 1996-05-07 | Uninterruptible power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09308134A true JPH09308134A (en) | 1997-11-28 |
Family
ID=15199339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8137469A Pending JPH09308134A (en) | 1996-05-07 | 1996-05-07 | Uninterruptible power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09308134A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010011174A (en) * | 1999-07-26 | 2001-02-15 | 백광규 | Uninterrupted Power Supply |
| KR100384451B1 (en) * | 1998-12-18 | 2003-08-25 | 재단법인 포항산업과학연구원 | Uninterruptible power supply with integrated charger and inverter |
| US6947671B2 (en) | 2003-04-18 | 2005-09-20 | International Business Machines Corp | Optical link module, optical interconnection method, information processor including the optical link module, signal transfer method, prism and method of manufacturing the prism |
| US8400801B2 (en) | 2009-04-27 | 2013-03-19 | Murata Manufacturing Co., Ltd. | Wireless power transfer terminal |
| WO2013112361A1 (en) * | 2012-01-24 | 2013-08-01 | Google Inc. | Battery leakage current elimination in ups units |
| CN103887861A (en) * | 2014-04-17 | 2014-06-25 | 重庆汇韬电气有限公司 | Self-conversion charging inverter circuit and charging method |
| CN111399616A (en) * | 2020-03-05 | 2020-07-10 | 广州市友达电子科技有限公司 | Internet of things cloud platform based on WEB client |
-
1996
- 1996-05-07 JP JP8137469A patent/JPH09308134A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100384451B1 (en) * | 1998-12-18 | 2003-08-25 | 재단법인 포항산업과학연구원 | Uninterruptible power supply with integrated charger and inverter |
| KR20010011174A (en) * | 1999-07-26 | 2001-02-15 | 백광규 | Uninterrupted Power Supply |
| US6947671B2 (en) | 2003-04-18 | 2005-09-20 | International Business Machines Corp | Optical link module, optical interconnection method, information processor including the optical link module, signal transfer method, prism and method of manufacturing the prism |
| US7903911B2 (en) | 2003-04-18 | 2011-03-08 | International Business Machines Corporation | Optical link module, optical interconnection method, information processor including the optical link module, signal transfer method, prism and method of manufacturing the prism |
| US8400801B2 (en) | 2009-04-27 | 2013-03-19 | Murata Manufacturing Co., Ltd. | Wireless power transfer terminal |
| WO2013112361A1 (en) * | 2012-01-24 | 2013-08-01 | Google Inc. | Battery leakage current elimination in ups units |
| US9035609B1 (en) | 2012-01-24 | 2015-05-19 | Google Inc. | Hot swap control in uninterruptible power supply |
| US9166423B2 (en) | 2012-01-24 | 2015-10-20 | Google Inc. | Battery leakage current elimination in UPS units |
| US9214833B1 (en) | 2012-01-24 | 2015-12-15 | Google Inc. | Redundant charging and discharging MOSFET driving in battery backup system |
| US9843221B1 (en) | 2012-01-24 | 2017-12-12 | Google Llc | Redundant charging and discharging MOSFET driving in battery backup system |
| CN103887861A (en) * | 2014-04-17 | 2014-06-25 | 重庆汇韬电气有限公司 | Self-conversion charging inverter circuit and charging method |
| CN111399616A (en) * | 2020-03-05 | 2020-07-10 | 广州市友达电子科技有限公司 | Internet of things cloud platform based on WEB client |
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