摘要：介绍对于低电压信号或低功率切换应用，具备MOSFET输出的光学隔离固态继电器（SSR，Solid State Relay）可以比传统机电式继电器（EMR，Electro—Mechanical Relay）带来几个重要优势，工程师在使用这类继电器时面临的一个主要挑战是如何决定并找出继电器封装内可以承受的最大动态和静态功率，工作频率基本上会对整体功耗带来最高限制，因此非常重要的一点是，

摘要：使用交流电源的医疗设备，可能会因不恰当的接地和电气隔离造成漏电，让患者和医疗人员暴露在危险之下，同时漏电也可能影响到邻近其它医疗设备的性能。对医疗设备来说，EMC是一个相当重要的条件，从2005年11月开始，医疗设备必须符合国际电工委员会（IEC）更新后的IEC60601—1—2：2001EMC标准。

摘要：This research formulates a path-following control problem subjected to wheel slippage and skid and solves it using a logic-based control scheme for a wheeled mobile robot （WMR）. The novelty of the proposed scheme lies in its methodology that considers both longitudinal and lateral slip components. Based on the derived slip model, the controller for longitudinal motion slip has been synthesized. Various control parameters have been studied to investigate their effects on the performance of the controller resulting in selection of their optimum values. The designed controller for lateral slip or skid is based on the proposed side friction model and skid check condition. Considering a car-like WMR, simulation results demonstrate the effectiveness of the proposed control scheme. The robot successfully followed the desired circular trajectory in the presence of wheel slippage and skid. This research finds its potential in various applications involving WMR navigation and control.