| 摘要 |
The device has a detector circuit (C) with detector connecting terminals (D) connected with positive poles of a battery for operation of electrical guide units (H). A positive voltage is detected with a set of detector units (E) with which an electrical connection with an electrical connection unit for a positive voltage (F) e.g. relay, is activated. The detector units determine a negative voltage and electrical connection units for a negative voltage (G) e.g. MOS, is activated, to form a complete circuit and for the flow of a stream of the connection units for the positive voltage.
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