JPH09200974A - Dc power supply equipment having backup storage battery - Google Patents
Dc power supply equipment having backup storage batteryInfo
- Publication number
- JPH09200974A JPH09200974A JP8022081A JP2208196A JPH09200974A JP H09200974 A JPH09200974 A JP H09200974A JP 8022081 A JP8022081 A JP 8022081A JP 2208196 A JP2208196 A JP 2208196A JP H09200974 A JPH09200974 A JP H09200974A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- power supply
- storage battery
- backup
- 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
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はバックアップ用蓄電池を
備えた直流電源装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DC power supply device equipped with a backup storage battery.
【０００２】[0002]
【従来技術】通信機用の直流電源装置は，常に安定に継
続して電力を供給する高信頼性を必要とされるため，商
用交流電源からの電力とバックアップ用の蓄電池とを並
列にして構成し，商用交流電源の停電時に備えている。
この目的の直流電源装置としては，例えば，特開平4-30
4160号公報に開示されている。この回路は，図３に示す
ように平常時には商用交流入力から整流平滑回路を経て
一旦直流電圧を得て，この直流電圧を主電源用ＤＣ−Ｄ
Ｃコンバータにより負荷へ電力供給する。また，この電
力を分岐して，バックアップ用の蓄電池の充電を行う。
そして商用交流入力断のときには，停電検出スイッチに
よりバックアップ用蓄電池を主電源用ＤＣ−ＤＣコンバ
ータの入力電圧より低く設定されたバックアップ用ＤＣ
−ＤＣコンバータの入力側に切り換え，このとき入出力
電圧の関係にもとづきオンとなるスイッチングダイオー
ドを介して主電源用ＤＣ−ＤＣコンバータが引き続き駆
動されるよう構成される。この直流電源装置は，平常時
は直接主電源用ＤＣ−ＤＣコンバータにより負荷に電力
供給しているので電力効率が高い。また停電時にはバッ
クアップ用蓄電池をバックアップ用ＤＣ−ＤＣコンバー
タを経て，主電源用ＤＣ−ＤＣコンバータから所定の直
流電力を供給するので，電力効率については平常時より
バックアップ用ＤＣ−ＤＣコンバータの損失分だけ減少
することになる。この直流電源装置は，構成が簡素で高
効率であり，バックアップ用蓄電池の電圧を自由に選ぶ
ことができ，極めて有用である。2. Description of the Related Art Since a DC power supply device for a communication device is required to have high reliability to supply power continuously and stably, power from a commercial AC power supply and a storage battery for backup are arranged in parallel. In preparation for a power failure of the commercial AC power supply.
As a DC power supply device for this purpose, for example, JP-A-4-30
It is disclosed in Japanese Patent No. 4160. As shown in FIG. 3, this circuit normally obtains a DC voltage from a commercial AC input through a rectifying / smoothing circuit and then outputs this DC voltage to a DC-D for the main power supply.
Power is supplied to the load by the C converter. This power is also branched to charge the backup storage battery.
When the commercial AC input is cut off, the backup storage battery is set to a voltage lower than the input voltage of the main power supply DC-DC converter by the power failure detection switch.
-Switching to the input side of the DC converter, the DC-DC converter for the main power supply is continuously driven through the switching diode which is turned on based on the relation of the input / output voltage at this time. This DC power supply device has high power efficiency because the DC-DC converter for the main power supply directly supplies power to the load during normal times. Also, in the event of a power failure, the backup storage battery passes through the backup DC-DC converter, and the specified DC power is supplied from the main power supply DC-DC converter, so the power efficiency is only the loss of the backup DC-DC converter from normal times. Will decrease. This DC power supply device has a simple structure and high efficiency, and the voltage of the backup storage battery can be freely selected, which is extremely useful.
【０００３】[0003]
【発明が解決しようとする課題】ところで，商用交流電
源を利用する機器においては，入力電流が正弦波でない
ことに伴う高調波の増加とこれによる電力系統の設備な
どに生じる障害が懸念されてきている。従来の商用交流
電源を整流平滑する構成では，この障害が問題となる。Meanwhile, in equipment using a commercial AC power source, there is a concern about an increase in harmonics caused by the fact that the input current is not a sine wave and a failure caused in the equipment of the power system due to the increase. There is. This problem becomes a problem in the conventional configuration in which the commercial AC power supply is rectified and smoothed.
【０００４】本発明は，バックアップ用蓄電池を備えた
直流電源装置において，商用交流入力の入力電流を正弦
波にして力率を１に近づけ，電力変換効率を向上させ，
そして蓄電池の電圧と種別の選定を自由にすることを課
題とする。According to the present invention, in a DC power supply device equipped with a backup storage battery, the input current of the commercial AC input is converted into a sine wave to bring the power factor close to 1 and improve the power conversion efficiency.
The challenge is to freely select the storage battery voltage and type.
【０００５】[0005]
【課題を解決するための手段】この課題を解決するた
め，本発明では以下の手段を提案するものである。商用
交流入力を整流して脈流出力を発生する回路と，この脈
流出力を所定の直流出力に変換して負荷に所定の直流出
力電力を供給する主電源用ＤＣ−ＤＣコンバータと，こ
のＤＣ−ＤＣコンバータから分岐して充電電流を与える
充電回路と，この充電回路により充電されるバックアッ
プ用蓄電池と，このバックアップ用蓄電池から電力供給
され，主電源用ＤＣ−ＤＣコンバータの直流出力電圧よ
りわずかに低い電圧の直流電力に変換するバックアップ
用ＤＣ−ＤＣコンバータと，このバックアップ用ＤＣ−
ＤＣコンバータの出力と主電源用ＤＣ−ＤＣコンバータ
の出力との間に接続されたスイッチングダイオードであ
って，商用交流入力が停電してバックアップ用ＤＣ−Ｄ
Ｃコンバータの出力が主電源用ＤＣ−ＤＣコンバータの
出力電圧を越えたときに，オン状態となりバックアップ
用ＤＣ−ＤＣコンバータから負荷に電力供給する極性に
接続されたスイッチングダイオードとから構成されるこ
とを特徴とするバックアップ用蓄電池を備えた直流電源
装置を提案するものである。In order to solve this problem, the present invention proposes the following means. A circuit for rectifying a commercial AC input to generate a pulsating flow output, a DC-DC converter for a main power supply for converting the pulsating flow output into a predetermined DC output and supplying a predetermined DC output power to a load, and this DC -A charging circuit that branches from the DC converter to give a charging current, a backup storage battery that is charged by this charging circuit, and power is supplied from this backup storage battery that is slightly lower than the DC output voltage of the main power supply DC-DC converter. Backup DC-DC converter for converting low voltage DC power, and this backup DC-DC converter
A switching diode connected between the output of the DC converter and the output of the DC-DC converter for the main power supply, which is a backup DC-D due to a power failure of the commercial AC input.
When the output of the C converter exceeds the output voltage of the DC-DC converter for the main power supply, it is turned on and is composed of a switching diode connected to the polarity that supplies power to the load from the backup DC-DC converter. The present invention proposes a DC power supply device equipped with a characteristic storage battery for backup.
【０００６】また主電源用ＤＣ−ＤＣコンバータの構成
については，商用交流入力の周波数より十分高い周波数
でスイッチングする高周波スイッチング部と，変圧器と
整流平滑部とから構成されることを提案するものであ
る。Regarding the structure of the DC-DC converter for the main power supply, it is proposed that the DC-DC converter is composed of a high frequency switching section for switching at a frequency sufficiently higher than the frequency of the commercial AC input, a transformer and a rectifying / smoothing section. is there.
【０００７】また充電回路については，変圧器から電力
供給されて第２の整流平滑部を介してバックアップ用蓄
電池に接続することを提案するものである。この構成に
より蓄電池の電圧を自由に選定し，充電回路の効率を高
くすることができる。The charging circuit is proposed to be supplied with power from a transformer and connected to a backup storage battery via a second rectifying / smoothing unit. With this configuration, the voltage of the storage battery can be freely selected and the efficiency of the charging circuit can be increased.
【０００８】またバックアップ用蓄電池については，特
性の異なる蓄電池ユニットを交換できる構成として，こ
れら蓄電池ユニットに識別端子を設け，この識別端子に
対応して充電回路にも識別端子を設けることを提案する
ものである。この構成により蓄電池ユニットを交換する
と自動的に充電回路の側でも，接続された蓄電池ユニッ
トに対応した充電制御モードに設定することができる。Further, regarding the backup storage battery, it is proposed that the storage battery units having different characteristics can be exchanged, and that the storage battery units are provided with identification terminals and the charging circuit is provided with identification terminals corresponding to the identification terminals. Is. With this configuration, when the storage battery unit is replaced, the charging circuit can automatically set the charging control mode corresponding to the connected storage battery unit.
【０００９】[0009]
【実施例】図１は本発明にかかるバックアップ用蓄電池
を備えた直流電源装置の一実施例である。商用交流電源
１を整流回路２に接続して脈流波形を得る。この脈流波
形は，平滑回路を通さずに主電源用のＤＣ−ＤＣコンバ
ータ３の入力に供給する。このＤＣ−ＤＣコンバータ３
の内部は，商用交流電源１より十分高い周波数でスイッ
チングする高周波スイッチング部31と変圧器32と整流平
滑部33とを経て，目的の直流電圧を発生する構成となっ
ている。また内部の変圧器32の別の巻線と整流平滑部34
を経て，別の直流電圧出力を得る。この直流電圧出力は
充電回路６を経て蓄電池７を充電する。この充電回路６
と蓄電池７との回路は複数個並列に構成されて，各蓄電
池７の保守等のための切離し回路と予備を有している。
蓄電池７のそれぞれからダイオード８を介してバックア
ップ用のＤＣ−ＤＣコンバータ９に接続される。このＤ
Ｃ−ＤＣコンバータ９はスイッチングダイオード10を経
て，主電源用のＤＣ−ＤＣコンバータ３の出力と合流し
て負荷５に接続される。このバックアップ用のＤＣ−Ｄ
Ｃコンバータ９の設定出力電圧は，主電源用のＤＣ−Ｄ
Ｃコンバータ３の定常電圧よりわずかに低く設定され
る。したがって定常時は主電源用のＤＣ−ＤＣコンバー
タ３のみが負荷５に電力供給し，バックアップ用ＤＣ−
ＤＣコンバータ９は無負荷運転している。そして停電時
には，無瞬断でバックアップ用ＤＣ−ＤＣコンバータ９
が負荷５に電力供給する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a DC power supply device equipped with a backup storage battery according to the present invention. The commercial AC power supply 1 is connected to the rectifier circuit 2 to obtain a pulsating flow waveform. This pulsating flow waveform is supplied to the input of the DC-DC converter 3 for the main power source without passing through the smoothing circuit. This DC-DC converter 3
The inside of is configured to generate a target DC voltage via a high frequency switching unit 31 that switches at a frequency sufficiently higher than that of the commercial AC power supply 1, a transformer 32, and a rectifying / smoothing unit 33. In addition, another winding of the transformer 32 and the rectifying and smoothing unit 34
To obtain another DC voltage output. This DC voltage output charges the storage battery 7 via the charging circuit 6. This charging circuit 6
A plurality of circuits of the storage battery 7 and the storage battery 7 are configured in parallel, and each of the storage batteries 7 has a disconnection circuit and a spare for maintenance and the like.
Each of the storage batteries 7 is connected to a backup DC-DC converter 9 via a diode 8. This D
The C-DC converter 9 merges with the output of the DC-DC converter 3 for the main power source through the switching diode 10 and is connected to the load 5. DC-D for this backup
The set output voltage of the C converter 9 is DC-D for the main power supply.
It is set to be slightly lower than the steady voltage of the C converter 3. Therefore, in the steady state, only the DC-DC converter 3 for the main power supply supplies power to the load 5, and the backup DC-DC converter 3
The DC converter 9 is operating without load. And in the event of a power failure, there is no interruption in the backup DC-DC converter 9
Powers the load 5.
【００１０】このように構成された直流電源装置の作用
を説明する。まず商用交流電源１が正常に電力供給され
ている場合を説明する。整流回路２の後段には大きな静
電容量をもつ平滑回路が存在しないので，商用交流電源
１の位相角のすべてにわたって一様に入力電流が流れる
よう動作する。そして図１に波形が図解されているよう
に，高周波スイッチング部31では輪郭が商用交流電源１
の波形の中にスイッチング高周波で細かく切られてい
る。この波形を整流平滑部33で商用交流電源１のいわゆ
る低周波成分も平滑するような定数をもって直流にす
る。したがって商用交流電源１の入力電流は正弦波状に
なり力率はほぼ１に等しくなると同時に，平坦な直流出
力を発生させることができる。このようにして主電源用
のＤＣ−ＤＣコンバータ３はスイッチングダイオード４
を経て負荷５に所定の直流電力を供給する。この電力供
給経路では高周波スイッチング部31が主な電力損失の可
能性のある要素であるが，スイッチング素子の選定と設
計条件を最適化することより，この電力損失を小さくす
ることは十分可能である。The operation of the DC power supply device configured as described above will be described. First, the case where the commercial AC power supply 1 is normally supplied with power will be described. Since there is no smoothing circuit having a large capacitance in the subsequent stage of the rectifier circuit 2, the input current flows uniformly over the entire phase angle of the commercial AC power supply 1. As shown in the waveform in FIG. 1, the high-frequency switching unit 31 has a contour of the commercial AC power supply 1
In the waveform of, switching is finely cut by high frequency. The rectifying / smoothing unit 33 converts this waveform into a direct current with a constant for smoothing the so-called low-frequency component of the commercial AC power supply 1. Therefore, the input current of the commercial AC power supply 1 becomes sinusoidal and the power factor becomes substantially equal to 1, and at the same time, a flat DC output can be generated. In this way, the DC-DC converter 3 for the main power supply has the switching diode 4
A predetermined DC power is supplied to the load 5 via In this power supply path, the high-frequency switching unit 31 is a main element that may cause power loss, but it is possible to sufficiently reduce this power loss by optimizing the selection of switching elements and design conditions. .
【００１１】つぎに，商用交流電源１が停電したときに
は，主電源用のＤＣ−ＤＣコンバータ３は電力供給を停
止する。このとき蓄電池７から電力供給されてアイドリ
ング動作しているバックアップ用のＤＣ−ＤＣコンバー
タ９はスイッチングダイオード10をオンさせて負荷５に
電力供給する。なお，ダイオード４は必ずしも必要な要
素ではなく，主電源用のＤＣ−ＤＣコンバータ３の回路
について，バックアップ用のＤＣ−ＤＣコンバータ９か
ら逆流等して障害が発生しないような回路構成であれ
ば，ダイオード４は不要である。Next, when the commercial AC power supply 1 fails, the DC-DC converter 3 for the main power supply stops the power supply. At this time, the backup DC-DC converter 9 which is supplied with power from the storage battery 7 and is in the idling operation turns on the switching diode 10 to supply power to the load 5. It should be noted that the diode 4 is not always an essential element, and the circuit of the DC-DC converter 3 for the main power supply may have a circuit configuration such that a backflow from the backup DC-DC converter 9 causes no trouble. The diode 4 is unnecessary.
【００１２】蓄電池７の選定については，充電側ではＤ
Ｃ−ＤＣコンバータ３の中の変圧器32と整流平滑部34と
充電回路６との回路が蓄電池７の電圧と種別に適合して
自由に選定できる。また放電側ではバックアップ用のＤ
Ｃ−ＤＣコンバータ９において昇降圧することにより，
必要な負荷５の電圧に自由に対応できる。Regarding the selection of the storage battery 7, D on the charging side
The circuit of the transformer 32, the rectifying / smoothing unit 34, and the charging circuit 6 in the C-DC converter 3 can be freely selected according to the voltage and type of the storage battery 7. On the discharge side, D for backup
By stepping up and down in the C-DC converter 9,
It is possible to freely cope with the required voltage of the load 5.
【００１３】図２は，充電回路と蓄電池との接続関係を
示す部分的な詳細図である。充電回路６に接続される蓄
電池としては，シール鉛蓄電池ユニット７ＬとＮｉＣｄ
蓄電池ユニット７Ｎの２種類がある。シール鉛蓄電池ユ
ニット７Ｌは，必要数直列接続したシール鉛蓄電池711,
712 等の＋極をそれぞれ端子701,702 等に接続し，各−
極を端子709 に共通接続する。そして蓄電池の種別を識
別するための端子Ａ，Ｂ，Ｃを設けて，この中のＡ，Ｂ
間を短絡接続する。また，ＮｉＣｄ蓄電池ユニット７Ｎ
は，必要数直列接続したＮｉＣｄ蓄電池731,732 等の＋
極をそれぞれ端子721,722 等に接続し，各−極を端子72
9 に共通接続する。そして端子Ａ，Ｂ，Ｃを設けて，こ
の中のＢ，Ｃ間を短絡接続する。そして充電回路６は，
これらのシール鉛蓄電池ユニット７ＬとＮｉＣｄ蓄電池
ユニット７Ｎの２種類のいずれとも接続結合できるよう
に端子601,602....609およびＡ，Ｂ，Ｃを設ける。蓄電
池の種別の違いについては，端子Ａ，Ｂ，Ｃの何れの間
が短絡されるかによって識別されて，充電制御モードを
対応して切り換える。FIG. 2 is a partial detailed view showing the connection relationship between the charging circuit and the storage battery. As the storage battery connected to the charging circuit 6, a sealed lead storage battery unit 7L and NiCd are used.
There are two types of storage battery unit 7N. The sealed lead acid battery unit 7L includes the necessary number of sealed lead acid batteries 711,
Connect the positive poles of 712 etc. to terminals 701, 702 etc. respectively, and
Commonly connect the poles to terminal 709. Then, terminals A, B, and C for identifying the type of the storage battery are provided, and A and B among them are provided.
Make a short-circuit connection between them. Also, NiCd storage battery unit 7N
Is the number of NiCd storage batteries 731,732 etc.
Connect the poles to terminals 721 and 722, etc., and connect each − pole to terminal 72.
Connect to 9 in common. Then, terminals A, B and C are provided, and B and C among them are short-circuited and connected. And the charging circuit 6
Terminals 601, 602 ... 609 and A, B, C are provided so that they can be connected and connected to both of the sealed lead acid battery unit 7L and the NiCd battery unit 7N. The difference in the type of storage battery is identified by which of the terminals A, B, and C is short-circuited, and the charging control mode is switched correspondingly.
【００１４】[0014]
【発明の効果】本発明は以上述べたような特徴を有して
いるので，バックアップ用蓄電池を備えた直流電源装置
において，商用交流入力の入力電流を正弦波にして力率
を１に近づけ，電力変換効率を向上させ，そして蓄電池
の電圧と種別の選定を自由にすることができる。また特
別に停電検出スイッチなどを必要とせず信頼性が高く経
済的でもある。EFFECTS OF THE INVENTION Since the present invention has the characteristics as described above, in a DC power supply device equipped with a backup storage battery, the input current of the commercial AC input is made into a sine wave to bring the power factor close to 1. The power conversion efficiency can be improved, and the storage battery voltage and type can be freely selected. It is also highly reliable and economical because it does not require a special power failure detection switch.
【図１】本発明にかかるバックアップ用蓄電池を備えた
直流電源装置の一実施例を示す図である。FIG. 1 is a diagram showing an embodiment of a DC power supply device equipped with a backup storage battery according to the present invention.
【図２】充電回路と蓄電池との接続関係を示す図であ
る。FIG. 2 is a diagram showing a connection relationship between a charging circuit and a storage battery.
【図３】従来のバックアップ用蓄電池を備えた直流電源
装置の一例を示す。FIG. 3 shows an example of a DC power supply device including a conventional backup storage battery.
１…商用交流電源 ２…整流回路 ３…ＤＣ−ＤＣコ
ンバータ ４…ダイオード ５…負荷 ６…充電回路
７…蓄電池 ７Ｌ…シール鉛蓄電池ユニット ７Ｎ…ＮｉＣｄ蓄電
池ユニット ８…ダイオード ９ＤＣ−ＤＣコンバータ 10…ダ
イオード1 ... Commercial AC power supply 2 ... Rectifier circuit 3 ... DC-DC converter 4 ... Diode 5 ... Load 6 ... Charging circuit
7 ... Storage battery 7L ... Sealed lead storage battery unit 7N ... NiCd storage battery unit 8 ... Diode 9 DC-DC converter 10 ... Diode
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長坂 義雄 東京都豊島区高田１丁目18番１号 オリジ ン電気株式会社内 (72)発明者 山▲崎▼ 幹夫 東京都新宿区西新宿３丁目19番２号 日本 電信電話株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshio Nagasaka 1-18-1 Takada, Toshima-ku, Tokyo Inside Origin Electric Co., Ltd. No. 2 Nippon Telegraph and Telephone Corporation
Claims (4)
る回路と，この脈流出力を所定の直流出力に変換して負
荷に所定の直流出力電力を供給する主電源用ＤＣ−ＤＣ
コンバータと，このＤＣ−ＤＣコンバータから分岐して
充電電流を与える充電回路と，この充電回路により充電
されるバックアップ用蓄電池と，このバックアップ用蓄
電池から電力供給され，前記主電源用ＤＣ−ＤＣコンバ
ータの直流出力電圧よりわずかに低い電圧の直流電力に
変換するバックアップ用ＤＣ−ＤＣコンバータと，この
バックアップ用ＤＣ−ＤＣコンバータの出力と前記主電
源用ＤＣ−ＤＣコンバータの出力との間に接続されたス
イッチングダイオードであって，前記商用交流入力が停
電して前記バックアップ用ＤＣ−ＤＣコンバータの出力
が前記主電源用ＤＣ−ＤＣコンバータの出力電圧を越え
たときに，オン状態となり前記バックアップ用ＤＣ−Ｄ
Ｃコンバータから前記負荷に電力供給する極性に接続さ
れたスイッチングダイオードとから構成されることを特
徴とするバックアップ用蓄電池を備えた直流電源装置。1. A circuit for rectifying a commercial AC input to generate a pulsating flow output, and a DC-DC for a main power supply for converting the pulsating flow output into a predetermined DC output and supplying a predetermined DC output power to a load.
A converter, a charging circuit that branches from the DC-DC converter to give a charging current, a backup storage battery charged by the charging circuit, and power is supplied from the backup storage battery to the main power supply DC-DC converter. A backup DC-DC converter for converting DC power having a voltage slightly lower than the DC output voltage, and switching connected between the output of the backup DC-DC converter and the output of the main power supply DC-DC converter A diode, which is turned on when the commercial AC input fails and the output of the backup DC-DC converter exceeds the output voltage of the main power supply DC-DC converter.
A DC power supply device comprising a backup storage battery, comprising a switching diode connected in a polarity for supplying power from the C converter to the load.
については，前記商用交流入力の周波数より十分高い周
波数でスイッチングする高周波スイッチング部と，変圧
器と整流平滑部とから構成されることを特徴とする請求
項１に記載のバックアップ用蓄電池を備えた直流電源装
置。2. The main power supply DC-DC converter is configured by a high frequency switching unit that switches at a frequency sufficiently higher than the frequency of the commercial AC input, a transformer and a rectifying / smoothing unit. A DC power supply device comprising the backup storage battery according to claim 1.
平滑部を介して前記充電回路に接続されることを特徴と
する請求項２に記載のバックアップ用蓄電池を備えた直
流電源装置。3. A DC power supply device having a backup storage battery according to claim 2, wherein power is supplied from the transformer and is connected to the charging circuit via a second rectifying / smoothing unit.
の異なる蓄電池ユニットを交換する構成であって，これ
ら蓄電池ユニットに識別端子を設け，この識別端子に対
応して前記充電回路にも識別端子を設けてなることを特
徴とする請求項１から請求項３までの何れかに記載のバ
ックアップ用蓄電池を備えた直流電源装置。4. A configuration in which storage battery units having different characteristics are replaced with respect to the backup storage battery, identification terminals are provided on these storage battery units, and identification terminals are also provided on the charging circuit corresponding to the identification terminals. A DC power supply device comprising the backup storage battery according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8022081A JPH09200974A (en) | 1996-01-12 | 1996-01-12 | Dc power supply equipment having backup storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8022081A JPH09200974A (en) | 1996-01-12 | 1996-01-12 | Dc power supply equipment having backup storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09200974A true JPH09200974A (en) | 1997-07-31 |
Family
ID=12072941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8022081A Pending JPH09200974A (en) | 1996-01-12 | 1996-01-12 | Dc power supply equipment having backup storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09200974A (en) |
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|---|---|---|---|---|
| FR2815789A1 (en) * | 2000-10-24 | 2002-04-26 | Thomson Csf | Electric power supply with high-level security, e.g. for electronic modules in aircraft |
| JP2003339127A (en) * | 2002-05-21 | 2003-11-28 | Matsushita Electric Ind Co Ltd | Uninterruptible power supply |
| JP2004064996A (en) * | 2003-08-11 | 2004-02-26 | Hitachi Ltd | Power supply device |
| US7053502B2 (en) | 1998-12-25 | 2006-05-30 | Hitachi, Ltd. | Power supply with uninterruptible function |
| US7360107B2 (en) | 2005-01-25 | 2008-04-15 | Fujitsu Limited | Method of controlling power within a disk array apparatus |
| JP2008206265A (en) * | 2007-02-19 | 2008-09-04 | Honda Motor Co Ltd | Cogeneration apparatus |
| JP2009095107A (en) * | 2007-10-05 | 2009-04-30 | Furukawa Battery Co Ltd:The | Uninterruptible backup power supply device |
| US7557463B2 (en) | 2004-06-29 | 2009-07-07 | Funai Electric Co., Ltd. | Image forming apparatus having power supply apparatus |
| JP2011024288A (en) * | 2009-07-13 | 2011-02-03 | Fujitsu Ltd | Power unit and method of controlling power supply |
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| CN104076633A (en) * | 2013-03-27 | 2014-10-01 | 日本冲信息株式会社 | Image formation device and control method |
| CN104682546A (en) * | 2015-01-19 | 2015-06-03 | 杰兴电子科技（深圳）有限公司 | Digitalized double-excitation uninterrupted switching power supply |
| CN105866553A (en) * | 2016-04-27 | 2016-08-17 | 天津鑫源达泰建筑工程有限公司 | Instrument and method for on-line detection of ground resistor |
-
1996
- 1996-01-12 JP JP8022081A patent/JPH09200974A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7053502B2 (en) | 1998-12-25 | 2006-05-30 | Hitachi, Ltd. | Power supply with uninterruptible function |
| FR2815789A1 (en) * | 2000-10-24 | 2002-04-26 | Thomson Csf | Electric power supply with high-level security, e.g. for electronic modules in aircraft |
| WO2002035680A1 (en) * | 2000-10-24 | 2002-05-02 | Thales | High-security electric power supply device |
| US7109606B2 (en) | 2000-10-24 | 2006-09-19 | Thales | High-security electric power supply device |
| JP2003339127A (en) * | 2002-05-21 | 2003-11-28 | Matsushita Electric Ind Co Ltd | Uninterruptible power supply |
| JP2004064996A (en) * | 2003-08-11 | 2004-02-26 | Hitachi Ltd | Power supply device |
| US7557463B2 (en) | 2004-06-29 | 2009-07-07 | Funai Electric Co., Ltd. | Image forming apparatus having power supply apparatus |
| KR101043761B1 (en) * | 2004-09-10 | 2011-06-22 | 엘지전자 주식회사 | A rechargeable battery recharger with a reserve rechargeable battery |
| US7360107B2 (en) | 2005-01-25 | 2008-04-15 | Fujitsu Limited | Method of controlling power within a disk array apparatus |
| JP2008206265A (en) * | 2007-02-19 | 2008-09-04 | Honda Motor Co Ltd | Cogeneration apparatus |
| JP2009095107A (en) * | 2007-10-05 | 2009-04-30 | Furukawa Battery Co Ltd:The | Uninterruptible backup power supply device |
| JP2011024288A (en) * | 2009-07-13 | 2011-02-03 | Fujitsu Ltd | Power unit and method of controlling power supply |
| CN104076633A (en) * | 2013-03-27 | 2014-10-01 | 日本冲信息株式会社 | Image formation device and control method |
| CN104682546A (en) * | 2015-01-19 | 2015-06-03 | 杰兴电子科技（深圳）有限公司 | Digitalized double-excitation uninterrupted switching power supply |
| CN105866553A (en) * | 2016-04-27 | 2016-08-17 | 天津鑫源达泰建筑工程有限公司 | Instrument and method for on-line detection of ground resistor |
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