JPH0288176U - - Google Patents
Info
- Publication number
- JPH0288176U JPH0288176U JP16708288U JP16708288U JPH0288176U JP H0288176 U JPH0288176 U JP H0288176U JP 16708288 U JP16708288 U JP 16708288U JP 16708288 U JP16708288 U JP 16708288U JP H0288176 U JPH0288176 U JP H0288176U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- battery
- comparator
- detection
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案の電池消耗検知回路の構成図、
第２図は従来例の回路結線図である。
３…電圧安定化回路、１１…電池、２１…基準
電圧発生部、１０…コンパレータ、１５…分圧器
、３１…ＣＰＵ、ＺＤ…ツエナダイオード、ＶＤ
…検出電圧、ＶＤＤ…電源入力電圧、ＶＲ…基準
電圧。
Figure 1 is a configuration diagram of the battery consumption detection circuit of the present invention.
FIG. 2 is a circuit connection diagram of a conventional example. 3...Voltage stabilization circuit, 11...Battery, 21...Reference voltage generator, 10...Comparator, 15...Voltage divider, 31...CPU, ZD...Zena diode, VD
...Detection voltage, VDD...Power supply input voltage, VR...Reference voltage.
Claims (1)
る駆動電池の分圧によるスレツシヨルド電圧を検
出して電池電圧の低下を検知する回路において、
上記電池の両端子間に並設した接地側のツエナダ
イオードと抵抗器との直列接続点を上記コンパレ
ータの検出電圧入力端子に接続してなることを特
徴とする電池消耗検知回路。 In a circuit that detects a drop in battery voltage by detecting the threshold voltage due to the partial voltage of the driving battery, which is applied as the voltage to be compared with the comparator,
A battery depletion detection circuit characterized in that a series connection point between a Zener diode on the ground side and a resistor arranged in parallel between both terminals of the battery is connected to a detection voltage input terminal of the comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16708288U JPH0288176U (en) | 1988-12-23 | 1988-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16708288U JPH0288176U (en) | 1988-12-23 | 1988-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0288176U true JPH0288176U (en) | 1990-07-12 |
Family
ID=31455057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16708288U Pending JPH0288176U (en) | 1988-12-23 | 1988-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0288176U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143471A (en) * | 1979-04-27 | 1980-11-08 | Toshiba Corp | Battery voltage detecting circuit |
-
1988
- 1988-12-23 JP JP16708288U patent/JPH0288176U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143471A (en) * | 1979-04-27 | 1980-11-08 | Toshiba Corp | Battery voltage detecting circuit |