| 摘要 |
PURPOSE:To improve operability by enabling manual operation when a momentary switch SW is operated once and automatic operation when it is operated twice within a prescribed time. CONSTITUTION:In a window regulator, pushing an SWA outputs a signal H from a terminal A1. When FFs A8 and B8 are both reset, a circuit A2 is opened because a signal H is being sent from the terminal Q' of the FFB8 to an AND circuit A2, and contacts A12 and A13 are connected by energizing a relay A11 with the signal H passed through an OR circuit A9 and an amplifier A10 so as to turn a motor M normally, thereby enabling the manual operation of closing a window. The output of the circuit A2 is differentiated A3 to trigger a monostable multivibrator A5, which outputs a signal H, which is inputted to an AND circuit A7 via a delay circuit A6. When the SWA is freed and then pushed again within a delay time, the circuit A7 is opened to set the FFA8, and the signal H is outputted from a terminal Q to put the motor M in automatic operation through the relay A11. When the window is closed, an overcurrent detecting circuit D outputs a signal H to reset the FFA8. |
