JPH03125330U - - Google Patents
Info
- Publication number
- JPH03125330U JPH03125330U JP3327290U JP3327290U JPH03125330U JP H03125330 U JPH03125330 U JP H03125330U JP 3327290 U JP3327290 U JP 3327290U JP 3327290 U JP3327290 U JP 3327290U JP H03125330 U JPH03125330 U JP H03125330U
- Authority
- JP
- Japan
- Prior art keywords
- measurement
- switch
- current
- state buffer
- 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
- 238000005259 measurement Methods 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims 2
- 230000007257 malfunction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Liquid Crystal Display Device Control (AREA)
Description
第１図は本説明に係る一実施例を示した電流測
定回路図である。
１……測定／非測定切り替えスイツチ、２……
測定電流切り替えスイツチ、３……ＯＲ回路、４
……スリーステートバツフア、５……電流測定タ
ーミナル。
FIG. 1 is a current measurement circuit diagram showing an embodiment according to the present description. 1...Measurement/non-measurement switch, 2...
Measurement current selection switch, 3...OR circuit, 4
...Three-state buffer, 5...Current measurement terminal.
Claims (1)
定／非測定切り替えスイツチと測定電流切り替え
スイツチ、電流測定ターミナル、各信号線に配置
したスリーステートバツフアと該スリーステート
バツフアを制御するためのＯＲ回路からなり、前
記スリーステートバツフアにより前記スイツチ切
り替え時のスイツチが不確定の状態での液晶表示
素子の誤動作を防止することを特徴とした電流測
定回路。 In the current consumption measurement circuit of the liquid crystal drive device, the measurement/non-measurement switch, the measurement current switch, the current measurement terminal, the three-state buffer placed on each signal line, and the OR circuit for controlling the three-state buffer are used. A current measuring circuit characterized in that the three-state buffer prevents malfunction of a liquid crystal display element when the switch is in an uncertain state when switching the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327290U JPH03125330U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327290U JPH03125330U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03125330U true JPH03125330U (en) | 1991-12-18 |
Family
ID=31536808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3327290U Pending JPH03125330U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03125330U (en) |
-
1990
- 1990-03-29 JP JP3327290U patent/JPH03125330U/ja active Pending