JPH09205737A - Charging equipment - Google Patents
Charging equipmentInfo
- Publication number
- JPH09205737A JPH09205737A JP8277512A JP27751296A JPH09205737A JP H09205737 A JPH09205737 A JP H09205737A JP 8277512 A JP8277512 A JP 8277512A JP 27751296 A JP27751296 A JP 27751296A JP H09205737 A JPH09205737 A JP H09205737A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- charging
- converter
- battery
- charging device
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】 （２）(2)
【発明の属する技術分野】２次電池を急速充電する充電
装置の充電制御方式に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging control system for a charging device for rapidly charging a secondary battery.
【０００２】[0002]
【従来の技術】従来の急速充電器には、直流電源からド
ロッパを使って電池を充電するものがある。2. Description of the Related Art Some conventional quick chargers charge a battery from a DC power source using a dropper.
【０００３】これは、充電々流を検出しながら、例えば
ＤＣ／ＤＣコンバ−タによりＯＮ／ＯＦＦ制御して、方
形波パルスを作っていた。図１は直流を入力とした場合
の、パルス充電法（Ｒ・Ｆ・Ｖ法＝Ｒesistance Ｆree
Ｖoltage法）による、充電装置の充電々流波形（ａ）及
び電池電圧波形(ｂ)である。In this method, a square wave pulse is produced by controlling the ON / OFF state by, for example, a DC / DC converter while detecting the charge flow. Figure 1 shows the pulse charging method (R · F · V method = Resistance Free) when DC is input.
2 is a charge flow waveform (a) and a battery voltage waveform (b) of the charging device according to the Voltage method).
【０００４】この方式は、充電々流（ａ）のＯＦＦ期間
の電池電圧（ｂ）ＲＦＶを検出して充電制御を行うもの
である。この為、充電々流が流れていない期間の電池電
圧を検出しているので、高い検出精度を得る事が出来
る。In this system, the charging voltage is controlled by detecting the battery voltage (b) RFV during the off period of the charging flow (a). For this reason, since the battery voltage is detected during the period when the charging flow is not flowing, high detection accuracy can be obtained.
【０００５】但し、方形波パルス制御である為、充電効
率が例えば３０％程度であり非常に悪く、又高価なもの
となっていた。However, since the square wave pulse control is used, the charging efficiency is, for example, about 30%, which is very bad and expensive.
【０００６】又、単相交流入力を用いて、ＤＣ／ＤＣコ
ンバ−タ制御によって２次電池を充電するリップル充電
法がある。この方式は、充電器として全波整流ダイオ−
ドと、小さめの入出力コンデンサを用い、広い入力電圧
変動範囲で制御出来るＤＣ／ＤＣコンバ−タ等で構成さ
れている。この場合、充電制御を行う為の検出電圧は、
平均電池電圧ＶAVEを用いていた。従って、充電効率は
良くなるが、検出精度や応答性の面でやや劣っていた。There is also a ripple charging method in which a single-phase AC input is used to charge a secondary battery by DC / DC converter control. This method uses a full-wave rectification diode as a charger.
And a DC / DC converter which can be controlled in a wide input voltage fluctuation range by using a small input / output capacitor and a small input / output capacitor. In this case, the detection voltage for charging control is
The average battery voltage VAVE was used. Therefore, although the charging efficiency is improved, it is slightly inferior in terms of detection accuracy and responsiveness.
【０００７】 （３） 図２は、従来のリップル充電法による各部波形である。
単相交流電圧のゼロクロス付近は、充電器出力電流（充
電々流）（ｄ）が流れない期間があり、従って電池電圧
は（ｅ）の波形となり、この電圧波形の平均値ＶAVEを
検出電圧として用いていた。(3) FIG. 2 is a waveform of each part by the conventional ripple charging method.
Around the zero crossing of the single-phase AC voltage, there is a period in which the charger output current (charging current) (d) does not flow, so the battery voltage becomes the waveform (e), and the average value VAVE of this voltage waveform is used as the detection voltage. Was used.
【０００８】[0008]
【発明が解決しようとする課題】従来技術のパルス充電
法（Ｒ・Ｆ・Ｖ法）では、電池電圧の検出精度は高い
が、充電器が低効率かつ高価なものになるという欠点が
ある。又従来技術のリップル充電法に於いては、充電効
率は良くなるが、充電終了を電池の平均電圧を用いて検
出しているので検出精度が悪くなるという欠点がある。
従って本発明は、上記両者の長所を生かし、高効率かつ
検出精度の高い充電器を提供する事を目的とするもので
ある。The pulse charging method (R / F / V method) of the prior art has a high battery voltage detection accuracy, but has a drawback that the charger becomes low in efficiency and expensive. Further, in the conventional ripple charging method, the charging efficiency is improved, but since the end of charging is detected by using the average voltage of the battery, there is a drawback that the detection accuracy is deteriorated.
Therefore, an object of the present invention is to provide a charger having high efficiency and high detection accuracy by making use of the advantages of both of the above.
【０００９】[0009]
【課題を解決する為の手段】本発明は、前記リップル充
電法に於いて、交流入力電圧のゼロクロス信号をタイミ
ングパルスとして用い、ＤＣ／ＤＣコンバ−タの変換動
作停止期間の電池電圧をサンプリングして、これを記憶
して検出情報として充電制御を行うものである。According to the present invention, in the above-described ripple charging method, a zero cross signal of an AC input voltage is used as a timing pulse to sample a battery voltage during a conversion operation stop period of a DC / DC converter. Then, this is stored and charging control is performed as detection information.
【００１０】充電制御は、全波整流電圧を高周波でＯＮ
／ＯＦＦするＤＣ／ＤＣコンバ−タのＤＵＴＹを制御す
る方法（連続パルス充電法）か又は、これに併用して全
波整流波形の偶数倍毎にＤＣ／ＤＣコンバ−タの動作、
停止を繰返す方法（不連続パルス充電法）が行われる
が、いずれの場合もＤＣ／ＤＣコンバ−タの休止期間の
電池電圧をサンプリングする事には変わらない。Charging control turns on full-wave rectified voltage at high frequency
ON / OFF the method of controlling the DUTY of the DC / DC converter (continuous pulse charging method), or in combination with this, the operation of the DC / DC converter for every even multiple of the full-wave rectified waveform,
A method of repeating the stop (discontinuous pulse charging method) is performed, but in either case, it is the same as sampling the battery voltage during the idle period of the DC / DC converter.
【００１１】[0011]
【実施の形態】図３は、本発明の連続パルス充電法によ
る各部波形である。図３の波形（ａ）〜（ｄ）は、図２
の従来技術の場合と全く同じであるので説明 （４） は省略する。尚、ＤＣ／ＤＣコンバ−タは数１０ＫＨＺ
でチョッピング動作を行っているので、図２、図３の充
電器出力電流（ｄ）は高周波のＯＮ／ＯＦＦ波形である
が、その包絡線がえがいてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 shows waveforms at various points according to the continuous pulse charging method of the present invention. Waveforms (a) to (d) of FIG.
Since it is exactly the same as the case of the related art of (1), description (4) will be omitted. The DC / DC converter is several tens of KHZ.
Since the chopping operation is performed at 1, the charger output current (d) in FIGS. 2 and 3 has a high-frequency ON / OFF waveform, but the envelope is sharp.
【００１２】電池電圧波形は図３（ｅ）の様になってお
り、単相交流の毎サイクルのゼロクロス付近でＤＣ／Ｄ
Ｃコンバ−タが停止している為、この期間電池電圧は一
定となっている。The battery voltage waveform is as shown in FIG. 3 (e), and DC / D is obtained near the zero cross of each cycle of the single-phase alternating current.
Since the C converter is stopped, the battery voltage is constant during this period.
【００１３】ＤＣ／ＤＣコンバ−タが停止している期間
の電池電圧（図３（ｅ）のＲＦＶ1、ＲＦＶ2・・・ＲＦ
Ｖ4等）を検出し、図３（ｆ）の様に、ゼロクロス時の
電池電圧サンプリング信号を取り出す。Battery voltage (RFV1, RFV2 ... RF in FIG. 3 (e) during the period when the DC / DC converter is stopped.
(V4 etc.) is detected, and the battery voltage sampling signal at the time of zero cross is taken out as shown in FIG.
【００１４】そして、入力電圧が低下してＤＣ／ＤＣコ
ンバ−タが変換動作を停止している時の適当な時期に、
このゼロクロス時の電池電圧（ｆ）をサンプリングし、
電池の充電状態を推定する。Then, at an appropriate time when the input voltage drops and the DC / DC converter stops the conversion operation,
The battery voltage (f) at this zero cross is sampled,
Estimate the state of charge of the battery.
【００１５】これによって、電池が充電状態でない時の
電池電圧を検出する事が出来るので、検出精度の高い充
電制御を行う事が出来る。尚、サンプリング信号は必ず
しもこの様な形状でなくても良い事は言うまでもない。
特に、急速充電とトリクル充電を併用した方式に於いて
は、とくにこの様な方法で充電停止期間の電池電圧をサ
ンプリングして、電池の充電状態を推定する事は好まし
い方法である。As a result, the battery voltage can be detected when the battery is not in the charged state, so that charge control with high detection accuracy can be performed. Needless to say, the sampling signal does not necessarily have to have such a shape.
In particular, in a system in which both rapid charging and trickle charging are used, it is a preferable method to sample the battery voltage during the charging stop period and estimate the battery charge state by such a method.
【００１６】尚この方式の場合の充電制御は、ＤＣ／Ｄ
Ｃコンバ−タのＤＵＴＹ比を変える事によって行われ
る。The charge control in this system is DC / D
This is done by changing the DUTY ratio of the C converter.
【００１７】 （５） 又、例えば０.７ＡＨのＮｉＣｄ電池（１.２Ｖ）を１０
Ｃ（７Ａ）で充電を行う場合、充電停止期間の分極作用
による電圧降下は、４５ｍｓで１００ｍＶぐらいドロッ
プする。Ｌｉイオン電池（３.６Ｖ）の場合は４５ｍｓ
で３００ｍＶぐらい分極作用によるドロップがある。(5) Also, for example, a NiCd battery (1.2 V) of 0.7 AH
When charging is performed at C (7A), the voltage drop due to the polarization effect during the charge stop period drops about 100 mV in 45 ms. 45 ms for Li-ion battery (3.6 V)
There is a drop of about 300 mV due to the polarization effect.
【００１８】この為、ＤＣ／ＤＣコンバ−タの休止期間
を、ゼロクロス期間より長く取って、電池電圧を測定し
た方が、より電池電圧精度の高いサンプリング検出を行
うことが出来る。Therefore, it is possible to perform sampling detection with higher battery voltage accuracy by measuring the battery voltage with the DC / DC converter idle period longer than the zero-cross period.
【００１９】そこで本発明の第２の実施の形態は、図４
に示す不連続パルスによるパルス充電法である。Therefore, the second embodiment of the present invention will be described with reference to FIG.
It is a pulse charging method by the discontinuous pulse shown in.
【００２０】これは、図４の単相交流電圧（ａ）の全波
整流波形の１サイクル分の整数倍毎の単位で、ＤＣ／Ｄ
Ｃコンバ−タを動作、不動作を繰り返すものである。も
ちろん充電制御はコンバ−タ動作期間中のＯＮ／ＯＦＦ
ＤＵＴＹ比によって行う事を主とし、可能ならコンバ
−タの動作、不動作の期間の比を制御することを併用し
てもよい。This is a unit of an integral multiple of one cycle of the full-wave rectified waveform of the single-phase AC voltage (a) in FIG.
The C converter is repeatedly operated and not operated. Of course, the charging control is ON / OFF during the converter operation period.
The duty ratio is mainly used, and if possible, the ratio of the operation period and the non-operation period of the converter may be controlled together.
【００２１】尚、上記１サイクルの整数倍毎のコンバ−
タのＯＮ／ＯＦＦは偶数回数毎のＯＮ／ＯＦＦ繰り返し
でないと、高調波分が入力側へ帰還して入力力率を悪く
してしまう。The converter for each integer multiple of the above-mentioned one cycle.
If ON / OFF of the power is not repeated every even number of times, the harmonic components will return to the input side and the input power factor will be deteriorated.
【００２２】従って、１サイクルの偶数倍回充電を行
い、偶数倍回充電を連続休とすることが望ましい。Therefore, it is desirable to carry out even-numbered times of charging for one cycle and to suspend even-numbered times of charging continuously.
【００２３】よって、図４（ｂ）の様な充電器入力電流
となり、ＤＣ／ＤＣコンバ−タ入力電圧は（ｃ）、充電
器出力電流は（ｄ）の様な波形になる。 （６）Therefore, the charger input current is as shown in FIG. 4B, the DC / DC converter input voltage is as shown in FIG. 4C, and the charger output current is as shown in FIG. 4D. (6)
【００２４】これによって電池電圧（ｅ）は、図の様に
ゼロクロス期間より長い休止期間を設けて、休止期間中
の電池電圧ＲＦＶ3、ＲＦＶ4の内、分極ドロップを見込
んだ休止時間後（例えば４５ｍｓ後）の電池電圧ＲＦＶ
4をサンプリングする。As a result, the battery voltage (e) is provided with a rest period longer than the zero-cross period as shown in the figure. ) Battery voltage RFV
Sample 4
【００２５】この様に、休止期間中の電池電圧の応答の
様子を見て、電池の充電状態を推定する事によってより
精度の高い充電制御を行う事が出来る。In this way, by looking at the state of the battery voltage response during the rest period and estimating the state of charge of the battery, more accurate charge control can be performed.
【００２６】図５は、本発明の充電装置の一実施例ブロ
ック図である。図に於いて、充電器１は単相交流２を入
力として、ＤＣ／ＤＣコンバ−タ４で制御して２次電池
５を充電する。全波整流器３で整流された入力電圧で動
作するＤＣ／ＤＣコンバ−タ４と、これを制御するマイ
コン６、電池電圧を測定するＡ／Ｄ変換部７、入力電圧
監視回路８から成る。FIG. 5 is a block diagram of an embodiment of the charging device of the present invention. In the figure, a charger 1 receives a single-phase AC 2 as an input and controls a DC / DC converter 4 to charge a secondary battery 5. It comprises a DC / DC converter 4 which operates with an input voltage rectified by the full-wave rectifier 3, a microcomputer 6 for controlling the same, an A / D converter 7 for measuring a battery voltage, and an input voltage monitoring circuit 8.
【００２７】ＤＣ／ＤＣコンバ−タ４は広い入力電圧範
囲で動作するが、入力電圧がある値以下では変換動作を
停止する様に構成されている。ＤＣ／ＤＣコンバ−タ４
が停止している適当な時期に、入力電圧監視回路８の情
報と合わせてサンプリング信号をマイコン６が出力し、
一方Ａ／Ｄ変換部７で２次電池５の電池電圧を測定し、
この情報を記憶部９で記憶し、この情報によってマイコ
ン６がＤＣ／ＤＣコンバ−タ４の制御を行う。Although the DC / DC converter 4 operates in a wide input voltage range, the conversion operation is stopped when the input voltage is below a certain value. DC / DC converter 4
The microcomputer 6 outputs a sampling signal together with the information of the input voltage monitoring circuit 8 at an appropriate time when the
Meanwhile, the A / D converter 7 measures the battery voltage of the secondary battery 5,
This information is stored in the storage unit 9, and the microcomputer 6 controls the DC / DC converter 4 based on this information.
【００２８】制御は電流制御中心で、ＤＣ／ＤＣコンバ
−タ４のＤＵＴＹ比によって電流値と電流休止期間を主
に変える。The control is centered on the current control, and the current value and the current rest period are mainly changed by the DUTY ratio of the DC / DC converter 4.
【００２９】充電方法は、本発明の連続パルス充電法
（図３）、不連続パルス充電法（図４）のどちらも同じ
である。連続パルス充電法は急速充電、不連続パルス充
電法はトリクル充電に使うとより有効である。 （７）The charging method is the same for both the continuous pulse charging method (FIG. 3) and the discontinuous pulse charging method (FIG. 4) of the present invention. The continuous pulse charging method is more effective when used for rapid charging, and the discontinuous pulse charging method is more effective when used for trickle charging. (7)
【００３０】尚、本実施例の様に必ずしもマイコンやＡ
／Ｄ変換回路を用いる必要はない。基準電池電圧（満充
電電圧を含む）を複数個用意して、サンプリング信号が
入る時期ごとにコンパレ−タで電池電圧と比較し、電池
の充電状態をその都度判定し、その結果を状態記憶して
充電制御しても良い。Incidentally, as in this embodiment, the microcomputer and the A
It is not necessary to use the / D conversion circuit. Prepare multiple reference battery voltages (including full charge voltage), compare with the battery voltage with a comparator at each sampling signal input time, judge the battery charge status each time, and store the result in the status storage. Charge control may be performed.
【００３１】又電池温度の情報をＡ／Ｄコンバ−タで取
り込んだりタイマ−等の制御を合わせて行えばより充電
終止検出を高精度化する事は明らかである。Further, it is apparent that the detection of the end of charge can be made more accurate if the information on the battery temperature is taken in by the A / D converter and the control of the timer is also performed.
【００３２】又、図５に於いて、全波整流器３の入出力
側に設けた抵抗Ｒ1、Ｒ2、Ｒ3は、本発明の請求項４を
構成する具体的実施例である。全波整流器３の入力側の
分圧抵抗Ｒ2の電圧と、出力側の抵抗Ｒ3の電圧を、入力
電圧監視回路８で監視する事によって、ゼロクロス信号
を検出する事が出来る。Further, in FIG. 5, the resistors R1, R2 and R3 provided on the input and output sides of the full-wave rectifier 3 are specific examples constituting claim 4 of the present invention. By monitoring the voltage of the voltage dividing resistor R2 on the input side of the full-wave rectifier 3 and the voltage of the resistor R3 on the output side with the input voltage monitoring circuit 8, a zero-cross signal can be detected.
【００３３】図６は、２次電池をスマ−トバッテリ化し
た場合の本発明の一実施例である。スマ−トバッテリ−
は、バッテリ−にインテリジェント機能（例えば残量、
劣化、判定、保護機能など）を持たせたものであり、そ
れだけ充電器の制御機能が簡素化される。FIG. 6 shows an embodiment of the present invention when the secondary battery is a smart battery. Smart battery-
Is a battery with intelligent features (eg
(Deterioration, judgment, protection function, etc.) is added, and the control function of the charger is simplified accordingly.
【００３４】すなわち、図５の実施例の方式では、検出
精度を上げる為には、ＯＦＦ期間の電池情報をより多く
採らなければならず、それだけマイコンの負担がかかっ
た。That is, in the method of the embodiment shown in FIG. 5, in order to improve the detection accuracy, more battery information in the OFF period has to be obtained, and the load on the microcomputer is increased accordingly.
【００３５】図６のスマ−トバッテリの場合は、スマ−
トバッテリ−に内蔵されたデジタル制御部分に電池情報
を送る事によって充電器側のマイコンの演算が簡素化さ
れ、デジタル制御部の負担を軽くする事が出来る。In the case of the smart battery shown in FIG.
By sending the battery information to the digital control unit built in the battery, the calculation of the microcomputer on the charger side can be simplified and the load on the digital control unit can be reduced.
【００３６】図６に於いて、スマ−トバッテリ−１１
は、２次電池５にバッテリ−マネ−ジメント部１０を内
蔵したものであり、入力電圧監視回路８よりのサンプリ
ング信 （８） 号をバッテリ−マネ−ジメント部１０が受けて、これを
使い電池情報として記憶部９に送り、ＤＣ／ＤＣコンバ
−タ４を制御するものである。In FIG. 6, a smart battery-11
Is a rechargeable battery 5 having a built-in battery management unit 10. The battery management unit 10 receives a sampling signal (8) from the input voltage monitoring circuit 8 and uses it. Information is sent to the storage unit 9 to control the DC / DC converter 4.
【００３７】尚、図６のスマ−トバッテリ−の実施例に
於いても、ゼロクロス信号と検出電圧のタイミングは、
充電器毎によって決められるものであり、図５と図６に
よる差異はない。又、本実施例では、マイコンをＤＣ／
ＤＣコンバ−タの入力側に持って来たが、ＤＣ／ＤＣコ
ンバ−タの出力側に持ってきて制御しても良いことは言
うまでもない。Even in the embodiment of the smart battery shown in FIG. 6, the timing of the zero cross signal and the detection voltage is
It is determined for each charger, and there is no difference between FIG. 5 and FIG. Further, in this embodiment, the microcomputer is set to DC /
Although it is brought to the input side of the DC converter, it goes without saying that it may be brought to the output side of the DC / DC converter and controlled.
【００３８】図７は、本発明の請求項５の実施の形態を
示す一実施例回路図である。すなわち、ゼロクロス信号
の取り方として、第２の整流回路１２を設け、この出力
側に出来るだけ高インピ−ダンスの（充電器の効率低下
にほとんど影響しない程度の）抵抗負荷を設ける。FIG. 7 is a circuit diagram of an embodiment showing the embodiment of claim 5 of the present invention. That is, as a method of taking a zero-cross signal, the second rectifying circuit 12 is provided, and a resistive load having a high impedance (to the extent that the efficiency of the charger is hardly affected) is provided on the output side.
【００３９】抵抗負荷は、Ｒ4、Ｒ5に抵抗分割し、検出
抵抗Ｒ5は、非検出側抵抗Ｒ4に比べて充分小さな値とす
る。図６の側ではＲ4＝１ＭΩ、Ｒ5＝１０ＫΩである。The resistance load is resistance-divided into R4 and R5, and the detection resistance R5 has a value sufficiently smaller than that of the non-detection side resistance R4. On the side of FIG. 6, R4 = 1 MΩ and R5 = 10 KΩ.
【００４０】抵抗Ｒ5の分圧電圧を、入力電圧監視回路
８の、例えば差動回路に入力する事により、ゼロクロス
電圧のパルスを作る事が出来る。以下、サンプリング処
理の方法は、前述の方法と全く同じである。By inputting the divided voltage of the resistor R5 to, for example, the differential circuit of the input voltage monitoring circuit 8, it is possible to generate a pulse of zero cross voltage. Hereinafter, the sampling method is exactly the same as the above method.
【００４１】尚、ＤＣ／ＤＣコンバ−タの変換動作を、
交流入力電圧のゼロクロス毎に強制的に停止させると、
ＤＣ／ＤＣコンバ−タから不快な低周波音を発生させる
場合がある。これを避ける方法として、ＲＦＶ測定周期
Ｔ２を長くとる方法がある。The conversion operation of the DC / DC converter is
Forcibly stopping at every zero cross of the AC input voltage,
An unpleasant low frequency sound may be generated from the DC / DC converter. As a method of avoiding this, there is a method of lengthening the RFV measurement cycle T2.
【００４２】例えば、電池の充電時間は急速充電時で
も、１０分〜１時間程度であるので、 （９） 充電時の電池情報を検知するのに、例えば、１秒程度の
遅れ時間は十分無視できる値である。For example, since the battery charging time is about 10 minutes to 1 hour even during rapid charging, (9) a delay time of, for example, about 1 second is sufficiently ignored to detect battery information during charging. It is a possible value.
【００４３】図８は、本発明の連続パルス充電法に於け
る、測定周期のインタ−バルを長く取った場合の電池電
圧、波形である。図は、測定周期Ｔ２を、入力周期Ｔ１
の整数倍の任意のインタ−バルで表したものである。FIG. 8 shows the battery voltage and the waveform when the interval of the measurement period is long in the continuous pulse charging method of the present invention. The figure shows the measurement period T2 as the input period T1.
It is represented by an arbitrary interval that is an integral multiple of.
【００４４】インタ−バルＴ２に周期させて、期間τだ
けＤＣ／ＤＣコンバ−タを停止させている。例えば、５
０ＨZの商用入力でもＴ１＝２０ｍｓであるので、Ｔ２
＝１ｓｅｃと取れば、充電器を定期的に止めても、不快
音の発生は無視できる程度に小さい。The DC / DC converter is stopped for a period τ by making the interval T2 cycle. For example, 5
Even with commercial input of 0Hz, T1 = 20ms, so T2
If = 1 sec, the generation of unpleasant noise is so small that it can be ignored even if the charger is periodically stopped.
【００４５】尚、１秒周期の停止なら、ＤＣ／ＤＣコン
バ−タの停止期間は、必ずしも図３（Ｃ）の谷の部分だ
けでなくても良い。例えば、図３（Ｃ）の波形に於い
て、ゼロクロス休止期間が広がっても、例えば、停止期
間が５ｍｓとなっても、大きな音の発生はない。In the case of the one-second cycle stop, the DC / DC converter stop period is not necessarily limited to the valley portion in FIG. 3 (C). For example, in the waveform of FIG. 3C, no loud sound is generated even if the zero-cross pause period is widened, for example, if the stop period is 5 ms.
【００４６】測定周期Ｔ２は、例えば充電時間が８時間
程度の普通充電では、１００秒程度の充電時間の誤差で
も、充電容量の誤差は、１００／(３６００×８)＝０.
３％程度であり、無視できる。よって、普通充電では、
Ｔ２＝１００秒は十分使える周期である。In the measurement cycle T2, for example, in the case of normal charging in which the charging time is about 8 hours, the error in the charging capacity is 100 / (3600 × 8) = 0.
It is about 3% and can be ignored. Therefore, in normal charging,
T2 = 100 seconds is a sufficiently usable cycle.
【００４７】図９は、図７の第２の全波整流器１２の代
わりに半波整流用ダイオ−ド１３を使った例である。こ
れにより、Ｔ２の周期を、Ｔ１の整数倍にとる事が簡単
に実行できる。FIG. 9 shows an example in which a diode 13 for half-wave rectification is used instead of the second full-wave rectifier 12 of FIG. This makes it easy to set the cycle of T2 to be an integral multiple of T1.
【００４８】[0048]
（１０） 本発明のパルス充電法はリップル充電であるので、入出
力コンデンサを比較的小さくする事が出来る。又、ＤＣ
／ＤＣコンバ−タを電流制御で動かすので、例えば６０
％以上の高効率となる。さらに、充電電流の流れていな
い時の電池電圧を電池情報として制御するので、高精度
に充電終了を監視する事が出来る。従って、本発明によ
り電池に最適な急速充電が可能な、急速充電器を定価に
提供できる。(10) Since the pulse charging method of the present invention is ripple charging, the input / output capacitor can be made relatively small. Also DC
Since the / DC converter is operated by current control, for example, 60
% Or higher efficiency. Further, since the battery voltage when the charging current is not flowing is controlled as the battery information, it is possible to monitor the charging end with high accuracy. Therefore, according to the present invention, it is possible to provide a quick charger, which can be optimally charged to a battery, at a fixed price.
【図１】従来方式の、直流入力パルス充電法による充電
装置の各部波形。FIG. 1 is a waveform of each part of a conventional charging device using a DC input pulse charging method.
【図２】従来方式の、リップル充電法による充電装置の
各部波形。FIG. 2 is a waveform of each part of a conventional charging device using a ripple charging method.
【図３】本発明の、連続パルス充電法による充電装置の
各部波形。FIG. 3 is a waveform of each part of a charging device according to the present invention, which uses a continuous pulse charging method.
【図４】本発明の、不連続パルス充電法による充電装置
の各部波形。FIG. 4 is a waveform of each part of a charging device according to the present invention, which uses a discontinuous pulse charging method.
【図５】本発明の、充電装置の一実施例ブロック図。FIG. 5 is a block diagram of an embodiment of a charging device of the present invention.
【図６】２次電池をスマ−トバッテリ化した場合の、本
発明の充電装置の一実施例ブロック図。FIG. 6 is a block diagram of an embodiment of the charging device of the present invention when the secondary battery is a smart battery.
【図７】本発明の、充電装置の他の実施例ブロック図。FIG. 7 is a block diagram of another embodiment of the charging device of the present invention.
【図８】本発明の連続パルス充電法において、測定周期
のインタ−バルを長く取った場合の電池電圧波形。FIG. 8 is a battery voltage waveform when a long measurement interval is used in the continuous pulse charging method of the present invention.
【図９】図７において、半波整流回路を用いた実施例ブ
ロック図。9 is a block diagram of an embodiment using a half-wave rectifier circuit in FIG. 7.
（１１） １ 充電装置 ２ 単相交流 ３ 全波整流器 ４ ＤＣ／ＤＣコンバ−タ ５ ２次電池 ６ マイコン ７ Ａ／Ｄ変換部 ８ 入力電圧監視回路 ９ 記憶部 １０ バッテリ−マネ−ジメント部 １１ スマ−トバッテリ− １２ 第２の全波整流器 Ｒ1〜Ｒ5 抵抗 １３ 半波整流用ダイオ−ド (11) 1 Charger 2 Single-phase AC 3 Full-wave rectifier 4 DC / DC converter 5 Secondary battery 6 Microcomputer 7 A / D converter 8 Input voltage monitoring circuit 9 Memory 10 Battery-management 11 Suma -T-battery-12 Second full-wave rectifier R1-R5 resistor 13 Half-wave rectifier diode
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０２Ｊ 7/10 Ｈ０２Ｊ 7/10 Ｐ Continuation of front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location H02J 7/10 H02J 7/10 P
Claims (7)
Ｃ／ＤＣコンバ−タにより２次電池を充電し、２次電池
よりの電池情報を用いて充電制御を行う充電装置におい
て、前記単相交流電圧のゼロクロス信号と、前記ＤＣ／
ＤＣコンバ−タ変換動作の停止期間中の２次電池電圧情
報を用いて、充電制御を行う事を特徴とする充電装置。1. A full-wave rectifier circuit and a D input with a single-phase alternating current.
In a charging device for charging a secondary battery with a C / DC converter and controlling charging using battery information from the secondary battery, a zero-cross signal of the single-phase AC voltage and the DC / DC
A charging device characterized in that charging control is performed using secondary battery voltage information during a period in which a DC converter conversion operation is stopped.
／ＤＣコンバ−タ変換動作の停止期間は、単相交流電圧
のゼロクロス近傍に設けられた事を特徴とする充電装
置。2. The charging device according to claim 1, wherein DC
The charging device is characterized in that it is provided in the vicinity of the zero-cross of the single-phase AC voltage during the suspension period of the / DC converter conversion operation.
／ＤＣコンバ−タの変換動作期間は、単相交流全波整流
波形の偶数倍であり、かつ変換動作の停止期間も単相交
流全波整流波形の偶数倍である事を特徴とする充電装
置。3. The charging device according to claim 1, wherein DC
Charging device characterized in that the conversion operation period of the / DC converter is an even multiple of the single-phase AC full-wave rectified waveform, and the conversion operation stop period is an even multiple of the single-phase AC full-wave rectified waveform. .
於いて、単相交流電圧のゼロクロス信号は、全波整流回
路の入出力信号を監視する事によって得る事を特徴とす
る充電装置。4. The charging device according to claim 1, 2 or 3, wherein the zero-cross signal of the single-phase AC voltage is obtained by monitoring an input / output signal of a full-wave rectifier circuit. .
於いて、単相交流電圧のゼロクロス信号は、第２の全波
整流回路の出力側に設けた分圧抵抗を監視する事によっ
て得られ、かつ前記分圧抵抗の値は、非監視側の分圧抵
抗の値に比べて、充分に小さい事を特徴とする充電装
置。5. The charging device according to claim 1, 2, or 3, wherein the zero-cross signal of the single-phase AC voltage is monitored by monitoring a voltage dividing resistor provided on the output side of the second full-wave rectifier circuit. A charging device characterized in that the value of the voltage dividing resistor obtained is sufficiently smaller than the value of the voltage dividing resistor on the non-monitoring side.
ゼロクロス信号のインタ−バルが、前記単相交流電圧の
３サイクル以上である事を特徴とする充電装置。6. The charging device according to claim 1, wherein the interval of the zero-cross signal is 3 cycles or more of the single-phase AC voltage.
インタ−バルが、０.１秒以上、１００秒以下の値であ
る事を特徴とする充電装置。7. The charging device according to claim 6, wherein the interval has a value of 0.1 second or more and 100 seconds or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27751296A JP3612152B2 (en) | 1995-11-21 | 1996-09-27 | Charger |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32655195 | 1995-11-21 | ||
| JP7-326551 | 1995-11-21 | ||
| JP27751296A JP3612152B2 (en) | 1995-11-21 | 1996-09-27 | Charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09205737A true JPH09205737A (en) | 1997-08-05 |
| JP3612152B2 JP3612152B2 (en) | 2005-01-19 |
Family
ID=26552428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27751296A Expired - Fee Related JP3612152B2 (en) | 1995-11-21 | 1996-09-27 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3612152B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005530476A (en) * | 2002-06-20 | 2005-10-06 | ミクロ＋・ポロ・ディー・オー・オー | Method for fast charging a battery and apparatus for carrying out said method |
| JP2013162703A (en) * | 2012-02-08 | 2013-08-19 | Nichicon Corp | Power storage device |
| JP2016063622A (en) * | 2014-09-18 | 2016-04-25 | Ntn株式会社 | Charging device |
| CN107171603A (en) * | 2017-05-18 | 2017-09-15 | 郑州云海信息技术有限公司 | A kind of small DC electric motor stream detecting system |
| JP2018128271A (en) * | 2017-02-06 | 2018-08-16 | 富士通株式会社 | Circuit for measuring residual battery capacity, electronic apparatus and method for measuring residual battery capacity |
-
1996
- 1996-09-27 JP JP27751296A patent/JP3612152B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005530476A (en) * | 2002-06-20 | 2005-10-06 | ミクロ＋・ポロ・ディー・オー・オー | Method for fast charging a battery and apparatus for carrying out said method |
| JP2013162703A (en) * | 2012-02-08 | 2013-08-19 | Nichicon Corp | Power storage device |
| JP2016063622A (en) * | 2014-09-18 | 2016-04-25 | Ntn株式会社 | Charging device |
| JP2018128271A (en) * | 2017-02-06 | 2018-08-16 | 富士通株式会社 | Circuit for measuring residual battery capacity, electronic apparatus and method for measuring residual battery capacity |
| CN107171603A (en) * | 2017-05-18 | 2017-09-15 | 郑州云海信息技术有限公司 | A kind of small DC electric motor stream detecting system |
| CN107171603B (en) * | 2017-05-18 | 2020-01-10 | 苏州浪潮智能科技有限公司 | Small-size direct current motor current detection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3612152B2 (en) | 2005-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3564885B2 (en) | Power supply with sealed lead-acid battery | |
| US5572416A (en) | Isolated input current sense means for high power factor rectifier | |
| US5500584A (en) | Battery charging method and apparatus using initial charging step with gradually increasing charging current, quick charging step with large charging current and final charging step with decreasing charging current | |
| CN100578886C (en) | Battery charging apparatus | |
| JP5990158B2 (en) | System for efficiently transferring collected vibrational energy to a battery and electronic device using the same | |
| US6127810A (en) | Charge control method and charger for a rechargeable battery | |
| JPH07288936A (en) | Charging of storage battery | |
| CN103618450A (en) | System for double-mode DC-DC power conversion | |
| US20160336857A1 (en) | Switching-mode power supplies | |
| JPH07231572A (en) | Battery charger | |
| JP2007020299A (en) | Charger | |
| CN114731053A (en) | Battery management system with plate carrying limited energy excitation and real-time alternating current impedance detection | |
| JP3612152B2 (en) | Charger | |
| JPH09232005A (en) | Judging method and device for deterioration of sealed lead-acid battery | |
| JP2002159147A (en) | Battery charger | |
| US5617005A (en) | Method and apparatus for charging lead acid batteries | |
| KR20010079839A (en) | Apparatus And Method For Detecting Memory Effect In Nickel-Cadmium Batteries | |
| JP2004069466A (en) | Electric current measuring device | |
| JPS61185070A (en) | Power converter having series resonance circuit | |
| Wang et al. | An SMPS-based lithium-ion battery test system for internal resistance measurement | |
| CN203562956U (en) | Dual-mode direct current-direct current power conversion system | |
| CN114019418A (en) | Power failure detection circuit for Internet of things electric energy meter and Internet of things electric energy meter | |
| JPH0332327A (en) | Charge control circuit | |
| JP4029591B2 (en) | Charging method | |
| JP3656379B2 (en) | Battery charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040419 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040511 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040608 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040727 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040916 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20041012 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20041022 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071029 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081029 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091029 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091029 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101029 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101029 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111029 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |