JPS61120934U - - Google Patents
Info
- Publication number
- JPS61120934U JPS61120934U JP12118785U JP12118785U JPS61120934U JP S61120934 U JPS61120934 U JP S61120934U JP 12118785 U JP12118785 U JP 12118785U JP 12118785 U JP12118785 U JP 12118785U JP S61120934 U JPS61120934 U JP S61120934U
- Authority
- JP
- Japan
- Prior art keywords
- microcomputer
- display device
- main battery
- loaded
- 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
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Description
第１図は、本考案の一実施例による全体の回路
ブロツク図、第２図は表示部、第３図は電圧―周
波数変換回路、第４図は降圧回路、第５図はメイ
ン電池の装着或いは取り外しによる割込のフロー
チヤート、第６図は巻上のサブルーチンを示すフ
ローチヤート、第７図はＢＣカウント１，２のサ
ブルーチンを示すフローチヤート及びタイマーに
よる割込のフローチヤート、第８図及び第９図は
測光スイツチのＯＮ或いは裏蓋の開閉スイツチの
ＯＮ，ＯＦＦによる割込のフローチヤート、第１
０図はメイン電池とバツクアツプ電池の両方が装
着されていない状態で、どちらか一方が装着され
たことによる割込のフローチヤートである。
ＭＣ……ワンチツプマイコン、ＤＳＰ……表示
装置、ＢＢＡ……メイン電池、ＤＢＡ……バツク
アツプ電池、ＢＡＳ……検出手段。
Figure 1 is an overall circuit block diagram according to an embodiment of the present invention, Figure 2 is the display section, Figure 3 is the voltage-frequency conversion circuit, Figure 4 is the step-down circuit, and Figure 5 is the installation of the main battery. 6 is a flowchart showing a subroutine for winding up, FIG. 7 is a flowchart showing a subroutine for BC counts 1 and 2, and a flowchart for interruption by a timer. Figure 9 is a flowchart of interruptions caused by turning on the photometry switch or turning on and off the opening/closing switch on the back cover.
Figure 0 is a flowchart of an interruption caused by the attachment of either the main battery or the backup battery when both the main battery and the backup battery are not attached. MC...one-chip microcomputer, DSP...display device, BBA...main battery, DBA...backup battery, BAS...detection means.
Claims (1)
ユータと、該マイクロコンピユータの演算結果ま
たは制御状態を表示する表示装置と、前記マイク
ロコンピユータおよび表示装置に電力を供給する
メイン電池と、該メイン電池の非装填時に前記マ
イクロコンピユータおよび表示装置に電力を供給
するよう前記メイン電池に並列接続されるバツク
アツプ電池と、前記メイン電池が装填されている
か否かを検出し、前記メイン電池が装填されてい
ないことが検出された時は前記マイクロコンピユ
ータから前記表示装置に対して全消灯指令信号を
出力させるための信号を前記マイクロコンピユー
タに与える検出手段とを備えたバツクアツプ電池
を有する電子機器。 A low power consumption microcomputer with built-in RAM, a display device that displays the calculation results or control status of the microcomputer, a main battery that supplies power to the microcomputer and the display device, and when the main battery is not loaded. A backup battery is connected in parallel to the main battery to supply power to the microcomputer and the display device, and detects whether or not the main battery is loaded, and detects that the main battery is not loaded. and detecting means for supplying a signal to the microcomputer to cause the microcomputer to output an all-lights-off command signal to the display device when the display device is turned off.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12118785U JPS61120934U (en) | 1985-08-06 | 1985-08-06 | |
| US06/813,150 US4662736A (en) | 1984-12-29 | 1985-12-24 | Power supply system for memory unit of camera |
| US07/046,940 US4816862A (en) | 1984-12-29 | 1987-05-05 | Power supply system for memory unit of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12118785U JPS61120934U (en) | 1985-08-06 | 1985-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61120934U true JPS61120934U (en) | 1986-07-30 |
Family
ID=30679981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12118785U Pending JPS61120934U (en) | 1984-12-29 | 1985-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61120934U (en) |
-
1985
- 1985-08-06 JP JP12118785U patent/JPS61120934U/ja active Pending