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Car access control system antenna circuit diagnosis unit switches antenna to static diagnosis unit with exact resistors in supply path
Car access control system antenna circuit diagnosis unit switches antenna to static diagnosis unit with exact resistors in supply path
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机译:汽车门禁系统天线电路诊断单元将天线切换到静态诊断单元,并在供电路径中使用精确的电阻器
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摘要
A car access control system antenna (2) circuit (1) diagnosis unit switches (21, 22) the antenna from the signal to a static diagnosis unit (20) applying the supply potentials (VCC, GND) to exact resistors (29, 30) and a dynamic diagnosis unit (10) applying the alternating current (13) through a transformer (6). Independent claims are included for the procedures used by the unit and for a third diagnosis unit measuring phase differences.
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