JPS5551343A - Battery monitor circuit for moisture meter - Google Patents
Battery monitor circuit for moisture meterInfo
- Publication number
- JPS5551343A JPS5551343A JP12450078A JP12450078A JPS5551343A JP S5551343 A JPS5551343 A JP S5551343A JP 12450078 A JP12450078 A JP 12450078A JP 12450078 A JP12450078 A JP 12450078A JP S5551343 A JPS5551343 A JP S5551343A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- secure
- lines
- battery
- 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
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000004397 blinking Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE: To avoid the erroneous measurement as well as to simplify the circuit and secure an accurate operation by generating the steady and high voltage through the single-switching regulator and inhibiting the glowing of the pilot lamp with the clamp signal.
CONSTITUTION: Switching regulator IC1 excites coil L for the time determined by capacitor C4. And outside this time range, the voltage is produced between lines 3 and 2 through induction of the battery voltage and coil L. Then the charging is given by capacitors C3 and C7 in order to secure the steady and fixed high voltage at all times between lines 3 and 2. The output of the potential equal to the battery using limit voltage given from operational amplifier IC21 is connected to the non- reverse terminal of operational amplifier IC22 so that the battery voltage may be supplied via lines 4 and 1. And the LED for display is connected between line 4 and the output side of IC22 to secure blinking along with resistance R16 and diode D7. As a result, the circuit can be simplified, securing an accurate operation for the circuit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12450078A JPS5551343A (en) | 1978-10-09 | 1978-10-09 | Battery monitor circuit for moisture meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12450078A JPS5551343A (en) | 1978-10-09 | 1978-10-09 | Battery monitor circuit for moisture meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5551343A true JPS5551343A (en) | 1980-04-15 |
Family
ID=14887019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12450078A Pending JPS5551343A (en) | 1978-10-09 | 1978-10-09 | Battery monitor circuit for moisture meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5551343A (en) |
-
1978
- 1978-10-09 JP JP12450078A patent/JPS5551343A/en active Pending
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