JPS61182531U

JPS61182531U -

Info

Publication number: JPS61182531U
Application number: JP6429585U
Authority: JP
Priority date: 1985-05-04
Filing date: 1985-05-04
Publication date: 1986-11-14

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例に係る起動回路の
構成を示す回路図、第２図および第３図のそれぞ
れは、第１図に示す実施例の各部の動作を示すタ
イムチヤートである。１……ＭＣＵ（マイクロ・コンピユータ・ユニ
ツト）、２……駆動回路、Ｒ１〜Ｒ６……抵抗、
Ｃ……コンデンサ、Ｓ１……モードスイツチ、Ｓ
２……締付ねじ回動用スイツチ、Ｓ３……リモー
トレリーズスイツチ、Ｓ４……巻上げ状態検出ス
イツチ、Ｔｒ１〜Ｔｒ３……トランジスタ（第１
〜第３のトランジスタ）、Ｄ１〜Ｄ３……ダイオ
ード。 FIG. 1 is a circuit diagram showing the configuration of a starting circuit according to an embodiment of the present invention, and FIGS. 2 and 3 are time charts showing the operation of each part of the embodiment shown in FIG. 1. . 1...MCU (micro computer unit), 2...drive circuit, R1 to R6...resistance,
C...Capacitor, S1...Mode switch, S
2... Tightening screw rotation switch, S3... Remote release switch, S4... Winding state detection switch, Tr1 to Tr3... Transistor (first
- third transistor), D1 to D3... diodes.

Claims

[Scope of utility model registration request]

In the startup circuit of the microcomputer unit of the camera's electric winding device, which uses a motor to rotate the tightening screw for connection to the camera body and to drive the film to wind the film, the tightening screw rotation mode and the shooting mode are set. 1st to select the mode
a second switch provided in parallel with the first switch for issuing a tightening screw rotation command, and a third switch for issuing a control command;
a first transistor which is turned off when the first switch is operated to the photographing mode side; and a third transistor.
is turned off when the switch is operated, and the collector and emitter of each of the transistors are connected in common to the collector and emitter of the first transistor, and the second transistor is connected to both ends of the power supply and output. a time circuit whose end is connected to the base of the second transistor;
a third transistor that opens the output terminal of the time constant circuit at the same time as the transistor is turned off;
A microcomputer unit for an electric winding device of a camera, characterized in that the second transistor is turned off, thereby raising the interrupt signal to an activation level and applying it to the interrupt terminal of the microcomputer unit. starting circuit.