Abstract: A plurality of regulator phases are connected in parallel between a regulator input and a regulator output, each phase including a regulator receiving an input voltage and providing an output voltage. A multi-phase controller is coupled to each of the plurality of regulator phases, where one or more phases are provided for enabling redundancy. The multi-phase controller receives a feedback output voltage and a respective detected current signal from each of the plurality of regulator phases. The multi-phase controller generates control signals to sequentially activate each of the plurality of regulator phases for predetermined periods of time to generate controlled current sharing between phases. To achieve redundancy at a phase level, each of the plurality of regulator phases includes an output ORing device to limit reverse current flow into each phase and an input protection device for providing input over current protection and output over voltage protection of each phase.

Abstract: A plurality of regulator phases are connected in parallel between a regulator input and a regulator output, each phase including a regulator receiving an input voltage and providing an output voltage. A multi-phase controller is coupled to each of the plurality of regulator phases, where one or more phases are provided for enabling redundancy. The multi-phase controller receives a feedback output voltage and a respective detected current signal from each of the plurality of regulator phases. The multi-phase controller generates control signals to sequentially activate each of the plurality of regulator phases for predetermined periods of time to generate controlled current sharing between phases. To achieve redundancy at a phase level, each of the plurality of regulator phases includes an output ORing device to limit reverse current flow into each phase and an input protection device for providing input over current protection and output over voltage protection of each phase.

Abstract: An apparatus for electrically interconnecting circuit boards and providing controlled low impedance current paths. A first conductive member has a first surface, a second surface and a third planar surface, the first surface attaches to a first circuit board or CIM and the second surface attaches to a second circuit board or CIM. An insulative sheet having dielectric properties is aligned parallel to the third surface of the first conductive member. A second conductive member has a fourth surface, a fifth surface and a sixth planar surface, the fourth surface connects to the first circuit board and the fifth surface is for attaching to the second CIM. The sixth planar surface is aligned parallel to the insulative sheet, such that a controlled low impedance high current interconnect can be achieved between the first CIM and the second circuit board responsive to the dielectric properties of the insulative sheet.

Abstract: A recurrent digital sweep signal starts an integrator fed by a constant current. The integrator includes push-pull Darlington stages, which act as alternately conducting controlled current sources for split deflection coils outside the integrator feedback loop. A phase shifter provides arcsine correction. A time-out circuit avoids excessive dissipation if the sweep signal should be lost.