JPH02150575U - - Google Patents
Info
- Publication number
- JPH02150575U JPH02150575U JP5917289U JP5917289U JPH02150575U JP H02150575 U JPH02150575 U JP H02150575U JP 5917289 U JP5917289 U JP 5917289U JP 5917289 U JP5917289 U JP 5917289U JP H02150575 U JPH02150575 U JP H02150575U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- switched
- display
- switch
- input terminal
- 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
- 238000005259 measurement Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例の電圧測定回路の回
路図、第２図は従来の同回路の回路図である。
１……電圧入力端子、２……ＡＣ／ＤＣ変換回
路、３……スイツチ、４……Ａ／Ｄ変換回路、５
……表示器、６……ＡＣ成分除去回路、７……比
較器、８……制御回路、９……スイツチ。
FIG. 1 is a circuit diagram of a voltage measuring circuit according to an embodiment of the present invention, and FIG. 2 is a conventional circuit diagram of the same circuit. 1... Voltage input terminal, 2... AC/DC conversion circuit, 3... Switch, 4... A/D conversion circuit, 5
... Display, 6 ... AC component removal circuit, 7 ... Comparator, 8 ... Control circuit, 9 ... Switch.
Claims (1)
した電圧とをスイツチで切り換えて、表示器で表
示させるようにした電圧測定回路において、 上記電圧入力端子の電圧からＡＣ成分を除去し
た電圧と上記ＡＣ／ＤＣ変換した電圧とを比較す
る比較手段を設け、該比較手段の比較結果に応じ
て上記スイツチを切り換えると共に、上記表示器
の表示モードを切り換えることを特徴とする電圧
測定回路。[Scope of Claim for Utility Model Registration] In a voltage measuring circuit in which the voltage at a voltage input terminal and the voltage obtained by converting the voltage into AC/DC are switched by a switch and displayed on a display, from the voltage at the voltage input terminal. A comparison means is provided for comparing the voltage from which the AC component has been removed and the AC/DC converted voltage, and the switch is switched according to the comparison result of the comparison means, and the display mode of the display is also switched. voltage measurement circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917289U JPH0720609Y2 (en) | 1989-05-24 | 1989-05-24 | Voltage measurement circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917289U JPH0720609Y2 (en) | 1989-05-24 | 1989-05-24 | Voltage measurement circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02150575U true JPH02150575U (en) | 1990-12-26 |
| JPH0720609Y2 JPH0720609Y2 (en) | 1995-05-15 |
Family
ID=31585437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5917289U Expired - Lifetime JPH0720609Y2 (en) | 1989-05-24 | 1989-05-24 | Voltage measurement circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720609Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016217747A (en) * | 2015-05-14 | 2016-12-22 | ミドリ安全株式会社 | Current measuring system |
-
1989
- 1989-05-24 JP JP5917289U patent/JPH0720609Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016217747A (en) * | 2015-05-14 | 2016-12-22 | ミドリ安全株式会社 | Current measuring system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0720609Y2 (en) | 1995-05-15 |