| 摘要 |
<p>A circuit arrangement and a method controls an electric wiper. A motor unit (EA) comprises an electric motor (M) and a limit switch (ES), wherein at least the limit switch (ES) is connected to a voltage source (SQ). Switching means (SM), which are activated during wiper operation, are provided for isolating the limit switch (ES) from the voltage source (SQ) and for connecting the limit switch (ES) to the earth potential (-).</p> |
