| 摘要 |
PURPOSE:To provide a control driving device for an automobile provided with a voltage detecting circuit having a small, lightweight, and inexpensive circuit structure, having sufficient on-board vibration durability, and preventing an air conditioning electric compressor from being fluctuated in revolving speed or stopped due to voltage fluctuations. CONSTITUTION:A voltage detecting circuit 10 is constituted of a triangular wave generating circuit 1, a comparing circuit 2, an insulation transmitting means 4, and an averaging circuit 6. The output from the voltage detecting circuit 10 is used as a control factor to drive an electric compressor 8. |
