Abstract: A ripple current reduction circuit is disclosed. The circuit includes a set of first coupled inductors, each comprising a primary winding configured to receive at a first end a respective phase voltage, and a secondary winding. The circuit also includes a set of second coupled inductors and a set of first capacitors, each first capacitor having an upstream end and a downstream end, wherein the set of first capacitors are coupled together at the downstream end to define a first node. The circuit further includes a set of auxiliary circuits each corresponding to a respective phase voltage, and coupled between the second end of the primary winding of a respective first inductor and the first node, wherein each auxiliary circuit comprises a respective second coupled inductor, a respective first capacitor, and the secondary winding of a respective first coupled inductor coupled in series.

Abstract: Methods and apparatuses for cooling an electronic device assembly having a heat producing are described. An electronic device assembly includes a heat dissipation member and a dielectric two-phase heat transfer device. The dielectric heat transfer device has an evaporator region thermally attached to a hot region of the heat producing component and a condenser region thermally attached to the heat dissipation member. The dielectric two-phase heat transfer device is fabricated from a dielectric material.

Abstract: Methods and apparatuses for cooling an electronic device assembly having a heat producing are described. An electronic device assembly includes a heat dissipation member and a dielectric two-phase heat transfer device. The dielectric heat transfer device has an evaporator region thermally attached to a hot region of the heat producing component and a condenser region thermally attached to the heat dissipation member. The dielectric two-phase heat transfer device is fabricated from a dielectric material.

Abstract: A device for measuring electrical current in a line may include, among other things, a Hall effect sensor wherein a first response is generated by electrical current in the line; a current transformer disposed with the line extending axially therethrough and connected in series to the Hall effect sensor wherein a second response is generated by the electrical current in the line. An equalizer may be connected to the Hall effect sensor and to the current transformer and may be configured to flatten the first and second responses relative to each other. The permeability magnetic path length and cross section of the current transformer is selected such that low frequency roll-off of the current transformer is at a lower frequency than high frequency roll-off of the Hall effect sensor.

Abstract: A device for measuring electrical current in a line may include, among other things, a Hall effect sensor wherein a first response is generated by electrical current in the line; a current transformer disposed with the line extending axially therethrough and connected in series to the Hall effect sensor wherein a second response is generated by the electrical current in the line. An equalizer may be connected to the Hall effect sensor and to the current transformer and may be configured to flatten the first and second responses relative to each other. The permeability magnetic path length and cross section of the current transformer is selected such that low frequency roll-off of the current transformer is at a lower frequency than high frequency roll-off of the Hall effect sensor.

Abstract: A circuit for producing a regulated output voltage and/or current includes a rectifier to rectify an alternating current (AC) input voltage and current to produce a rectified voltage and current having a frequency. A regulator is coupled to the rectifier to produce a regulated output based on the rectified voltage and/or current. A pair of output terminals supply the regulated output to a load The circuit does not include any capacitors that substantially filter the frequency of the rectified voltage and current.