JPS6238632U - - Google Patents
Info
- Publication number
- JPS6238632U JPS6238632U JP12956985U JP12956985U JPS6238632U JP S6238632 U JPS6238632 U JP S6238632U JP 12956985 U JP12956985 U JP 12956985U JP 12956985 U JP12956985 U JP 12956985U JP S6238632 U JPS6238632 U JP S6238632U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- current
- battery
- circuit
- voltage detection
- 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 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Exposure Control For Cameras (AREA)
- Stroboscope Apparatuses (AREA)
- Control Of Electrical Variables (AREA)
Description
第１図は、本考案の実施例を示すカメラの電源
回路の回路図、第２図ＡおよびＢは、それぞれ第
１図に示す実施例の動作説明用の波形図である。
１０，２０……モータ、３０……ストロボ、３
５……閃光放電管、３６……メインコンデンサ、
４０……ＤＣ／ＤＣコンバータ、５０……共用電
源電池、６０……電圧検出回路、７０……モータ
制御回路、７１……オアゲート、７２……ストロ
ボ制御回路。
FIG. 1 is a circuit diagram of a power supply circuit of a camera showing an embodiment of the present invention, and FIGS. 2A and 2B are waveform diagrams for explaining the operation of the embodiment shown in FIG. 1, respectively. 10, 20...Motor, 30...Strobe, 3
5...Flash discharge tube, 36...Main capacitor,
40...DC/DC converter, 50...Common power supply battery, 60...Voltage detection circuit, 70...Motor control circuit, 71...OR gate, 72...Strobe control circuit.
Claims (1)
離可変駆動用のモータへの電流供給と、ストロボ
のメインコンデンサへの充電を行なうＤＣ／ＤＣ
コンバータへの電流供給とを、共用電源電池で行
なうカメラの電源回路において、上記メインコン
デンサの充電電圧が所定値以下であるときに制御
信号を送出する電圧検出回路と、上記モータに上
記共用電源電池からの電流供給がなされていると
きであつて、且つ上記電圧検出回路から制御信号
が送出されたときに、上記共用電源電池から上記
ＤＣ／ＤＣコンバータへの電流供給を禁止する制
御回路と、を具備したことを特徴とするカメラの
電源回路。 DC/DC that supplies current to the motor for driving the focusing and/or variable focal length of the photographic lens, and charges the main capacitor of the strobe.
In a camera power supply circuit that uses a shared power battery to supply current to the converter, a voltage detection circuit that sends out a control signal when the charging voltage of the main capacitor is below a predetermined value, and a voltage detection circuit that supplies current to the motor using the shared power battery. a control circuit that prohibits current supply from the shared power supply battery to the DC/DC converter when current is being supplied from the common power supply battery and when a control signal is sent from the voltage detection circuit; A camera power supply circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12956985U JPS6238632U (en) | 1985-08-27 | 1985-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12956985U JPS6238632U (en) | 1985-08-27 | 1985-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6238632U true JPS6238632U (en) | 1987-03-07 |
Family
ID=31026254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12956985U Pending JPS6238632U (en) | 1985-08-27 | 1985-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6238632U (en) |
-
1985
- 1985-08-27 JP JP12956985U patent/JPS6238632U/ja active Pending
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