Switched-Mode Ripple Optimization

Methods and apparatus relate to a minimizing ripple in a polyphase power supply by modulating a voltage pre-regulator output setpoint to minimize ripple performance. In an illustrative example, the modulation may include incrementally adjusting the pre-regulator output setpoint supplied, for example, to a multiphase controller. Some examples may reverse the increment direction in response to determining that the prior incremental adjustment yielded increased ripple. Each phase of the polyphase power supply may include a buck-derived switch-mode power supply connected, for example, to a common output node.

Some apparatus and associated methods relate to conductivity modulation apparatus for active operations with an inductive element in a packaged circuit module formed with a bypass switch for configuration in parallel with an inductor. In

A distress situation recognizing and remote assistance summoning device for recognizing a distress situation which may be encountered by a transport vehicle, and for summoning assistance via a wireless communications link is shown and described.

Apparatus and associated methods relate to a photoelectric sensor system with a primary photo-detector to receive an on-axis return reflected by a retro-reflective target, and a monitor photo-detector to detect off-axis light indicative of a

Apparatus and associated methods relate to dual safety touch button systems for generating machine operation commands, according to predetermined safety guidelines, from status information received via an intercommunications link (ICL) operably connecting the dual safety