Abstract: A snubber circuit for use with an integrated power supply control circuit incorporating a transformer and a lateral power MOSFET on a single silicon chip. A capacitor is provided in circuit with the MOSFET and first resistor and diode are in series with each other and the capacitor. A second resistor and diode are also in series with each other and the capacitor. The diodes provide for first current flow in one and an opposite direction and the resistors provide first and second levels of resistance respectively for damping and turn on. In another embodiment, first and second resistors are provided in series with the capacitor, and a diode is connected across one of the resistors.

Abstract: A method and circuit for detecting the position of the movable element of an electrically commutated machine. The method and apparatus allow detection of the back electromagnetic force (BEMF) waveform with all legs of the machine energized by mathematically removing the applied voltage from the measured voltage across the phases.

Abstract: A snubber circuit for use with an integrated power supply control circuit incorporating a transformer and a lateral power MOSFET on a single silicon chip. A capacitor is provided in circuit with the MOSFET and first resistor and diode are in series with each other and the capacitor. A second resistor and diode are also in series with each other and the capacitor. The diodes provide for first current flow in one and an opposite direction and the resistors provide first and second levels of resistance respectively for damping and turn on.

Abstract: A system whereby existing powerlines are utilized as a data transport medium whereby computer network data, audio data, video data, control signals, native communication signals, and any combinations thereof are transported via powerlines, wherein powerline access portals are provided at any electrical power outlets to thereby enable data to be transmitted onto and received from standard powerlines, and wherein filters can be installed at power boxes to ensure that data is not transported to any powerlines that are not considered part of a data network.