JPH041515U - - Google Patents
Info
- Publication number
- JPH041515U JPH041515U JP4132090U JP4132090U JPH041515U JP H041515 U JPH041515 U JP H041515U JP 4132090 U JP4132090 U JP 4132090U JP 4132090 U JP4132090 U JP 4132090U JP H041515 U JPH041515 U JP H041515U
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electronic device
- backlight
- voltage
- liquid crystal
- 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 2
- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案に係る電子機器の一実施例の構
成図、第２図は第１図に示す電子機器の電源回路
の構成例を示す図、第３図は電池電圧Ｖの時間変
化を示す図、第４図は消費電流Ｉが制限される様
子を説明するための図、第５図は従来の電子機器
の電源回路の構成例を示す図である。
１……プロセツサ、２……メモリ、３……通信
インタフエース部、４……プリンタ、５……キー
ボード、６……バツクライト、７……液晶表示装
置、８……電源回路、１１……電池、１２……イ
ンバータ回路、１３……電圧検出部、１４……電
流制限回路。
FIG. 1 is a block diagram of an embodiment of an electronic device according to the present invention, FIG. 2 is a diagram showing an example of the configuration of a power supply circuit of the electronic device shown in FIG. 1, and FIG. FIG. 4 is a diagram for explaining how the current consumption I is limited, and FIG. 5 is a diagram illustrating an example of the configuration of a power supply circuit of a conventional electronic device. 1...Processor, 2...Memory, 3...Communication interface section, 4...Printer, 5...Keyboard, 6...Backlight, 7...Liquid crystal display device, 8...Power circuit, 11...Battery , 12... Inverter circuit, 13... Voltage detection section, 14... Current limiting circuit.
Claims (1)
池によつても駆動可能な電子機器において、前記
電池の電圧を検出する電圧検出手段と、検出され
た電池の電圧に応じて前記バツクライトへの電力
供給を制御する制御手段とを備えていることを特
徴とする電子機器。 An electronic device that uses a liquid crystal display device with a backlight and can also be driven by a battery includes voltage detection means for detecting the voltage of the battery, and supplying power to the backlight according to the detected voltage of the battery. An electronic device characterized by comprising a control means for controlling the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4132090U JPH041515U (en) | 1990-04-18 | 1990-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4132090U JPH041515U (en) | 1990-04-18 | 1990-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH041515U true JPH041515U (en) | 1992-01-08 |
Family
ID=31551886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4132090U Pending JPH041515U (en) | 1990-04-18 | 1990-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041515U (en) |
-
1990
- 1990-04-18 JP JP4132090U patent/JPH041515U/ja active Pending
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