| 摘要 |
PURPOSE:To utilize counter-electromotive force effectively by providing a circuit for feeding the counter-electromotive force, produced in the winding of a step motor driving circuit, to a strobo flashing capacitor and a circuit for feeding the counter-electromotive force to a display means. CONSTITUTION:A step motor driving circuit 5 is constituted such that the counter-electromotive force produced in the winding is fed to a strobo charging circuit 11 in order to charge a strobo flashing capacitor. LED1, LED2, LED3 and LED 4 are inserted in place of four diodes in a conventional driving circuit and the currents flowing through the LEDs are utilized for lighting light emitting elements at a display section. Consequently, the counter-electromotive force can be utilized effectively for charging of strobo and driving of light emitting elements displaying the operational state of camera. |
