JPH0415076U - - Google Patents
Info
- Publication number
- JPH0415076U JPH0415076U JP5413190U JP5413190U JPH0415076U JP H0415076 U JPH0415076 U JP H0415076U JP 5413190 U JP5413190 U JP 5413190U JP 5413190 U JP5413190 U JP 5413190U JP H0415076 U JPH0415076 U JP H0415076U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- power
- battery
- output
- input
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- Y02E60/12—
Landscapes
- Secondary Cells (AREA)
Description
第１図は、本考案の一実施例を示すブロツク図
、第２図は従来の電池電圧検出回路のブロツク図
を示す。
１……電池、２……出力電源端子、３……電池
電圧低下 信号出力端子、４……制御部、５……
出力電源スイツチ部、６……スイツチ回路、７…
…負荷、８……Ａ／Ｄ変換器、９……ラツチ回路
、１０……比較演算回路、１１……電源電圧検出
回路、１２……基準電圧発生回路、１３……比較
回路、１４……差演算回路、１５……比較データ
。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional battery voltage detection circuit. 1...Battery, 2...Output power supply terminal, 3...Battery voltage drop signal output terminal, 4...Control unit, 5...
Output power switch section, 6...Switch circuit, 7...
... Load, 8 ... A/D converter, 9 ... Latch circuit, 10 ... Comparison calculation circuit, 11 ... Power supply voltage detection circuit, 12 ... Reference voltage generation circuit, 13 ... Comparison circuit, 14 ... Difference calculation circuit, 15... Comparison data.
Claims (1)
源出力端子の間に出力端子の電源出力を制御する
電源スイツチを設け電源スイツチと電池の間にＡ
／Ｄ変換器の入力と負荷スイツチを接続し、負荷
スイツチのもう一方には負荷を接続し、Ａ／Ｄ変
換器の出力は、データラツチ回路の入力および差
演算回路の入力の一方に接続し、ラツチ回路の出
力は、差演算回路の入力の他の一方に与え、制御
回路は電池電圧低下検出時に電源スイツチを断と
し、第１段階として負荷スイツチを接として、そ
の時のＡ／Ｄ変換器の出力をラツチし、次の段階
で負荷スイツチを断とするよう動作し、差演算回
路は、上記ラツチされたデータと負荷スイツチ断
時のＡ／Ｄ変換器の出力の差が所定の値を越えた
時に、電池電圧低下信号出力を得ることを特徴と
する電池電圧低下検出装置。 In a power supply device that uses a battery as a power source, a power switch that controls the power output of the output terminal is provided between the battery and the power output terminal, and an A switch is installed between the power switch and the battery.
The input of the A/D converter is connected to a load switch, the other side of the load switch is connected to a load, the output of the A/D converter is connected to one of the input of the data latch circuit and the input of the difference calculation circuit, The output of the latch circuit is applied to the other input of the difference calculation circuit, and the control circuit turns off the power switch when a battery voltage drop is detected, and as a first step, connects the load switch to the A/D converter at that time. The output is latched and the load switch is turned off in the next step. A battery voltage drop detection device characterized in that it outputs a battery voltage drop signal when the battery voltage drops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5413190U JPH0415076U (en) | 1990-05-25 | 1990-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5413190U JPH0415076U (en) | 1990-05-25 | 1990-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0415076U true JPH0415076U (en) | 1992-02-06 |
Family
ID=31575923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5413190U Pending JPH0415076U (en) | 1990-05-25 | 1990-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0415076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5047602U (en) * | 1973-08-31 | 1975-05-12 | ||
| JPS53102704U (en) * | 1977-01-24 | 1978-08-18 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244642B2 (en) * | 1978-01-05 | 1987-09-22 | Moog Gmbh |
-
1990
- 1990-05-25 JP JP5413190U patent/JPH0415076U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244642B2 (en) * | 1978-01-05 | 1987-09-22 | Moog Gmbh |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5047602U (en) * | 1973-08-31 | 1975-05-12 | ||
| JPS53102704U (en) * | 1977-01-24 | 1978-08-18 | ||
| JPS5528727Y2 (en) * | 1977-01-24 | 1980-07-09 |