Infineon Technologies Ag

Intel Mobile Communications Gmbh

Intel Deutschland Gmbh

Svetozar Broussev

Nikolay Tchamov

Lars Persson

Ivan Uzunov

Jani Järvenhaara

Jani Jaervenhaara

Joni Järvi

The switched-mode power supply includes a first switch connected to an input terminal for receiving an input voltage, a second switch, a first node between the first switch and the second switch. The switched-mode power supply further includes a third switch connected to the input terminal, a fourth switch, and a second node between the third switch and the fourth switch. A first inductor is connected between the first node and an output terminal, a second inductor is connected between the second node and the output terminal, at least one third inductor is connected between the first node and the second node, and a capacitor is connected to the output terminal.

Switched-mode power supply and a two-phase DC to DC converter having switches and a filter that deliver current from a node among converter stages

A switched mode power supply provides a reduction of switching losses and increased efficiency. The switched mode power supply includes a first switch coupled to an input terminal configured to receive an input voltage, a second switch, an inductor and an output capacitor. The first switch and the second switch are coupled together at a node, the inductor is coupled between the node and an output terminal, and the output capacitor is coupled to the output terminal. The switched mode power supply further includes a transformer coupled between a control input of the first switch and the node and a pulse generator connected to a control input of the second switch. Further, the transformer includes at most two windings, in particular a primary winding and a secondary winding which are not directly connected to each other.

Switched mode power supply and a method for operating a switched mode power supply

One embodiment of the invention relates to a dynamically adjustable differential band-pass filter. This band-pass filter includes a first leg that has an input portion and an output portion with a first inductor therebetween. It also includes a second leg in parallel with the first leg, where the second leg has an input portion and an output portion with a second inductor therebetween. The first inductor is symmetrically inter-woven with the second inductor. In some embodiments, the band pass filter is configured to compensate for losses due to the inductors. Other band-pass filters and methods are also disclosed.

Differential band-pass filter having symmetrically interwoven inductors

Growing community of inventors

Tampere, Finland

Svetozar Broussev