JPH0287941A - Uninterruptible power supply - Google Patents
Uninterruptible power supplyInfo
- Publication number
- JPH0287941A JPH0287941A JP23915588A JP23915588A JPH0287941A JP H0287941 A JPH0287941 A JP H0287941A JP 23915588 A JP23915588 A JP 23915588A JP 23915588 A JP23915588 A JP 23915588A JP H0287941 A JPH0287941 A JP H0287941A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- voltage
- power supply
- temperature
- supply circuit
- 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
- 238000007600 charging Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 3
- 230000009365 direct transmission Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010280 constant potential charging Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は無停電々源装置に関するもので特に内臓電池の
充電に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an uninterruptible intermittent power source device, and particularly to charging of an internal battery.
以下図面により説明する。This will be explained below with reference to the drawings.
第１図は無停電々源装置の基本ブロック図である５第１
図において１は変圧器、２はｉｔ電源回路３は電池、４
は逆変換回路、５は停電検出回路、６は交流スイッチで
ある。Figure 1 is a basic block diagram of an uninterruptible power source.
In the figure, 1 is a transformer, 2 is an IT power supply circuit 3 is a battery, 4
5 is an inverse conversion circuit, 5 is a power failure detection circuit, and 6 is an AC switch.
本装置では商用人力受電中は交流スイッチ６は導通して
居り負荷に商用電力を直送する。この時逆変換回路４は
ＯＦ Ｆ状゛態で、電池３は電源回路２により７ｆ−動
充電されている。商用電力が停電した場合交びτスイッ
チ６はＯＦＦとなり、逆変換回路４が作動し、負荷側に
交流電力を供給する。In this device, while receiving commercial human power, the AC switch 6 is conductive and directly transmits commercial power to the load. At this time, the inverse conversion circuit 4 is in the OFF state, and the battery 3 is dynamically charged by the power supply circuit 2 for 7f. In the event of a power outage of commercial power, the AC switch 6 is turned OFF, the inverse conversion circuit 4 is activated, and AC power is supplied to the load side.
第２図は従来の電源回路の回路図であり７は整流回路、
Ｑは直流出力電圧を定電圧に安定する為のｉｔ’ｌ＋御
素子、８は誤差増巾器、ＤＺは基準電圧を作る為の定電
圧ダイオード、Ｒ１は定電圧ダイオドＤＺの電流を制限
する抵抗、Ｒ２、ＲｌＩは基準電圧の任意の倍率の直流
電圧を得る為の分圧抵抗、Ｄｌはｆ！！、流ダイオード
である。Figure 2 is a circuit diagram of a conventional power supply circuit, where 7 is a rectifier circuit;
Q is an it'l+ control element for stabilizing the DC output voltage at a constant voltage, 8 is an error amplifier, DZ is a constant voltage diode for creating a reference voltage, and R1 is a resistor that limits the current of the constant voltage diode DZ. , R2, and RlI are voltage dividing resistors for obtaining a DC voltage of an arbitrary multiple of the reference voltage, and Dl is f! ! , is a current diode.
′電源回路は商用受電中誤差増巾器８により基準電圧と
検出′ａ圧を比較し誤差分を増巾し制御素子Ｑに制御信
号を与えることにより一定の安定化された直流電圧を電
池に充電々圧として与える。'The power supply circuit compares the reference voltage and the detected 'a pressure' using the error amplifier 8 during commercial power reception, amplifies the error, and supplies a constant stabilized DC voltage to the battery by giving a control signal to the control element Q. Give as charge and pressure.
しかし鉛シール電池等では寿命の面から充電々圧の温度
補正を推奨して后り、従来の定電圧充電方式では低温で
の不活性化、高温での過充電になり易いという問題点が
あった。However, for lead-sealed batteries, temperature correction of charging pressure is recommended from the viewpoint of longevity, and the conventional constant voltage charging method has problems such as inactivation at low temperatures and overcharging at high temperatures. Ta.
本発明は上述の欠点を解消する為電池の周囲温度に追従
した適切な充電々圧を与えるもので第３図は本発明の１
実施例であり、図中第２図と同一符号は同等部品を示す
、Ｄ２〜Ｄ、は基準電圧を作る為のダイオード、Ｒ１は
、上記ダイオードに順方向電圧降下を生じさせる為の電
流を流す抵抗、Ｒ２、Ｒ３は基準電圧の任意の倍率の直
流電圧を得る為の分圧抵抗である。The present invention provides an appropriate charging pressure that follows the ambient temperature of the battery in order to eliminate the above-mentioned drawbacks.
This is an example, and the same symbols as in FIG. 2 indicate equivalent parts. D2 to D are diodes for creating a reference voltage, and R1 is a current that flows through the diode to cause a forward voltage drop. The resistors R2 and R3 are voltage dividing resistors for obtaining a DC voltage at an arbitrary multiple of the reference voltage.
電源回路は商用電力受電中、電池に充電々圧を与えるが
、基準電圧としてダイオードの順方向電圧降下を利用し
ていることからその効果として温度変化に対し負の温度
係数を示す。The power supply circuit applies charging pressure to the battery while receiving commercial power, but since it uses the forward voltage drop of the diode as the reference voltage, it exhibits a negative temperature coefficient with respect to temperature changes.
即ち基準電圧が負の温度係数を持つことから電源回路の
出力電圧は温度が低い場合は高＜、温度が高くなると低
くなる。That is, since the reference voltage has a negative temperature coefficient, the output voltage of the power supply circuit is high when the temperature is low, and becomes low when the temperature is high.
第４図はこの電源回路の特性を示す。FIG. 4 shows the characteristics of this power supply circuit.
このように本発明によれば電池の推奨充電々圧油線に従
って、定電圧機能と温度補正機能の２つの機能を満足出
来、電池に対し低温時の活性化と高温時の過充電防止が
出来、効率的な充電を行うと共に電池身命を長期に保つ
事が出来、その効果は大きい。As described above, according to the present invention, it is possible to satisfy the two functions of constant voltage function and temperature correction function according to the battery's recommended charging pressure oil line, and it is possible to activate the battery at low temperatures and prevent overcharging at high temperatures. , it is possible to charge efficiently and maintain the life of the battery for a long period of time, which has a great effect.
第１図は、無停電々源装置の基本ブロック図第２図は従
来の！＃回路
第３図は本発明の１実施例回路図
第４図は電源回路出力電圧の温度特性を示す。
１−変圧器 ２・・・電源回路 ３ ・電池４・・
・逆変換回路 ５・・・停電検出回路６・・交流スイ
ッチ ７・・整流回路 ８・・誤差増巾器
Ｑ・・・制御素子 ＤＺ・・・定電圧ダイオード、Ｄ
Ｉ・・整流用ダイオード、Ｄ２〜Ｄ１．・・基僧電圧用
ダイオード、Ｒ
Ｒ２、ＲＪ・・抵抗
、ｍ１図Figure 1 is a basic block diagram of an uninterruptible power supply device. Figure 2 is a conventional one! #Circuit FIG. 3 is a circuit diagram of one embodiment of the present invention. FIG. 4 shows the temperature characteristics of the power supply circuit output voltage. 1-Transformer 2... Power supply circuit 3 ・Battery 4...
・Reverse conversion circuit 5... Power outage detection circuit 6... AC switch 7... Rectifier circuit 8... Error amplifier Q... Control element DZ... Constant voltage diode, D
I... Rectifier diode, D2 to D1.・・Basic voltage diode, R R2, RJ・・Resistance, m1 diagram
Claims (1)
接続された電池を有し、該電源回路と該電池に並列に接
続された逆変更回路と、商用直送回路と交流スイッチ及
び停電検出回路で構成される無停電々源装置において、
該電源回路に直列にダイオードと抵抗とにより構成され
る基準電源を持ち該電池を充電する該電源回路の直流出
力電圧を電池の周囲温度の変化に従つて電池の推奨充電
々圧曲線に近づけて、可変することを特徴とした無停電
電源装置。It has a power supply circuit that outputs DC power, a battery connected in parallel to the output of the power supply circuit, a reverse change circuit connected in parallel to the power supply circuit and the battery, a commercial direct transmission circuit, an AC switch, and a power outage detection circuit. In an uninterruptible power source device consisting of
A reference power source composed of a diode and a resistor is connected in series with the power supply circuit, and the DC output voltage of the power supply circuit for charging the battery is brought close to the recommended charging voltage curve of the battery according to changes in the ambient temperature of the battery. , an uninterruptible power supply that is variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23915588A JPH0287941A (en) | 1988-09-24 | 1988-09-24 | Uninterruptible power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23915588A JPH0287941A (en) | 1988-09-24 | 1988-09-24 | Uninterruptible power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0287941A true JPH0287941A (en) | 1990-03-28 |
Family
ID=17040567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23915588A Pending JPH0287941A (en) | 1988-09-24 | 1988-09-24 | Uninterruptible power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0287941A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62155733A (en) * | 1985-12-27 | 1987-07-10 | 横河電機株式会社 | Temperature compensating circuit of charger |
-
1988
- 1988-09-24 JP JP23915588A patent/JPH0287941A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62155733A (en) * | 1985-12-27 | 1987-07-10 | 横河電機株式会社 | Temperature compensating circuit of charger |
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