JPS5964577U - Battery check circuit - Google Patents
Battery check circuitInfo
- Publication number
- JPS5964577U JPS5964577U JP1982158228U JP15822882U JPS5964577U JP S5964577 U JPS5964577 U JP S5964577U JP 1982158228 U JP1982158228 U JP 1982158228U JP 15822882 U JP15822882 U JP 15822882U JP S5964577 U JPS5964577 U JP S5964577U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- supply voltage
- level
- positive feedback
- 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
- Measurement Of Current Or Voltage (AREA)
- Exposure Control For Cameras (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の第１の実施例を示す図であり、第２図
（よ第１図示の回路の動作を説明する図であり、第３図
は本考案の第２の実施例を示す図であり、第４図は第３
図示の回路の動作を説明する図である。 。
〔主要部分の符号の説明〕、被給電回路・・・・・・２
、電源・・・・・・１、タイマ回路・・・・・・７，８
．ｒ８〜ｒ□２． Ｃ１゜Ｑ６、基準電圧源・・・・・
・３、電源電圧検出手段・・・・・・４、正帰還手段”
””Ｑｌ〜Ｑ４＋ ５＋ ｒ４１ ｒ５；ｒ５１ ’
Ｑ４、リセット手段”””ｒ１３． Ｑ７゜FIG. 1 is a diagram showing the first embodiment of the present invention, FIG. 2 is a diagram explaining the operation of the circuit shown in FIG. FIG. 4 is a diagram showing the third
FIG. 3 is a diagram illustrating the operation of the illustrated circuit. . [Explanation of symbols of main parts], Powered circuit...2
, power supply...1, timer circuit...7,8
．． r8~r□2. C1゜Q6, reference voltage source...
・3. Power supply voltage detection means...4. Positive feedback means"
""Ql~Q4+ 5+ r41 r5; r51'
Q4, reset means """r13. Q7゜
Claims (1)
を有する被給電回路に給電する装置のバッテリーチェッ
ク回路において、 前記電源電圧の変動とは無関係に一定の基準電圧を発生
する基準電圧源、 前記基準電圧と電源電圧とを比較して電源電圧が所定の
チェックレベル以下であるか否か判定する電源電圧検出
手段、 前記検出手段が電源電圧をチェックレベル以下であると
一担判定した後は負荷の減少に起因して電源重用がその
所定のチェックレベル以上に復帰してもその判定を変更
することがないよう前記検出手段の出力を保持する保持
手段、及び 電源投入時に前記保持手段による保持がなされないよう
にする解除手段を備えたことを特徴とするバッテリーチ
ェック回路。 ２ 実用新案登録請求の範囲第１項に記載の回路におい
て、 前記保持手段は前記検出手段の出力から入力へ正帰還を
与える正帰還手段であり、前記解除手段は電源投入時に
前記正帰還がかからないよう該正帰還を解除することを
特徴とするバッテリーチェック回路。 ３ 実用新案登録請求の範囲第２項に記載の回路におい
て、 前記解除手段は、電源投入時から所定時間の間前記被給
電回路を不動作とするタイマー回路と、前記所定時間の
間前記正帰還を解除するリセット手段とからなることを
特徴とするバッテリーチェック回路。 ４ 実用新案登録請求の範囲第２項に記載の回路におい
て、 前記正帰還量段は、前記検出手段によって一担前記チェ
ックレベル以下であると判定された電源電圧がその状態
から負荷の減少によってのみ復帰できる復帰レベルより
も高いあるリセットレベルになったときにのみ前記判定
を変更することができる程度の大きさの帰還を与えるこ
とを特徴とするバッテリーチェック回路。 ５ 実用新案登録請求の範囲第２項に記載の回路におい
て、 前記正帰還手段は、前記検出手段によって一担前記チェ
ックレベル以下であると判定された電源電圧がその状態
から如何に高いレベルに復帰しようともその判定を変更
することがない程に大きな帰還を与えることを特徴とす
るバッテリーチェック回路。[Claims for Utility Model Registration] 1. In a battery check circuit for a device that supplies power from a power supply to a powered circuit having a load that varies in size depending on the circuit operation, a certain standard is applied regardless of fluctuations in the power supply voltage. a reference voltage source that generates a voltage; power supply voltage detection means that compares the reference voltage and power supply voltage to determine whether the power supply voltage is below a predetermined check level; and the detection means determines whether the power supply voltage is below the check level. holding means for holding the output of the detection means so that the judgment will not be changed even if the heavy power supply returns to a predetermined check level or higher due to a decrease in the load after it has been determined that the detection means is present; A battery check circuit comprising a release means for preventing the holding means from holding the battery when the power is turned on. 2. In the circuit according to claim 1 of the utility model registration claim, the holding means is a positive feedback means that provides positive feedback from the output of the detecting means to the input, and the canceling means is configured such that the positive feedback is not applied when the power is turned on. A battery check circuit characterized in that the positive feedback is released. 3. In the circuit according to claim 2 of the utility model registration claim, the canceling means includes a timer circuit that disables the powered circuit for a predetermined period of time from power-on, and a timer circuit that disables the powered circuit for a predetermined period of time from power-on, and a timer circuit that disables the positive feedback circuit for the predetermined period of time. A battery check circuit comprising: a reset means for canceling the battery check circuit; 4. In the circuit according to claim 2 of the utility model registration claim, the positive feedback stage is configured such that the power supply voltage determined by the detection means to be below the check level is changed from that state only by a reduction in the load. A battery check circuit characterized in that it provides a feedback of such a magnitude that the judgment can be changed only when a certain reset level higher than a return level to which recovery is possible is reached. 5. In the circuit according to claim 2 of the utility model registration claim, the positive feedback means determines how the power supply voltage, which has been determined by the detection means to be below the check level, returns to a higher level from that state. A battery check circuit characterized in that it provides feedback so large that its judgment does not change even if the circuit is tried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982158228U JPS5964577U (en) | 1982-10-21 | 1982-10-21 | Battery check circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982158228U JPS5964577U (en) | 1982-10-21 | 1982-10-21 | Battery check circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5964577U true JPS5964577U (en) | 1984-04-28 |
Family
ID=30348628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982158228U Pending JPS5964577U (en) | 1982-10-21 | 1982-10-21 | Battery check circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5964577U (en) |
-
1982
- 1982-10-21 JP JP1982158228U patent/JPS5964577U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS604676U (en) | Sanitary cleaning equipment control circuit | |
| JPS5964577U (en) | Battery check circuit | |
| JPS5911509U (en) | Power cutoff device | |
| JPS5824846U (en) | Automotive microcomputer system | |
| JPS59121721U (en) | file protection device | |
| JPS60148328A (en) | power control circuit | |
| JPS6116629U (en) | Electronics | |
| JPS6025018U (en) | Malfunction prevention device | |
| JPS6133118U (en) | power control device | |
| JPS6028486U (en) | converter device | |
| JPS59132385U (en) | Inverter protection device | |
| JPS59112222U (en) | camera control device | |
| JPS6082301U (en) | process output device | |
| JPS58159700U (en) | Memory data protection circuit | |
| JPS6112125U (en) | Electronics | |
| JPS60103234U (en) | Electronic cash register power supply circuit | |
| JPS6035637U (en) | Power supply voltage monitoring circuit for electronic circuits | |
| JPS5977077U (en) | Printed circuit board power supply monitoring circuit | |
| JPS5996912U (en) | overload protection device | |
| JPS59145242U (en) | Charger safety device | |
| JPS5933538U (en) | memory backup device | |
| JPS59130300U (en) | Semiconductor memory data content protection device | |
| JPS59174627U (en) | Power supply sequence processing device | |
| JPS5814174U (en) | Power outage detection circuit for memory protection | |
| JPS583748U (en) | voltage monitoring device |