Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.

An apparatus is provided including a cascaded transformer set and a voltage divider. The cascaded transformer set includes a plurality of transformers, each having a primary and a secondary winding. The secondary winding of one transformer feeds the primary winding of an adjacent transformer. The voltage divider includes a plurality of capacitors and a plurality of resistors configured to divide a voltage applied to the cascaded transformer set among the plurality of transformers. The capacitors of the voltage divider may include a series of disks that are also used in the support structure of the apparatus.

A modular electromagnetic navigation system with reconfigurable magnetic field generating antennas provides improved means for tracking various magnetic wired or wireless sensors with multiple biomedical and industrial applications. Electromagnetic field generating antennas (pods) can be implemented as multilayered printed circuit boards (PCB) with different layers being sufficiently aligned and connected in series for increased magnetic field strength. The pods can be kept separate or implemented on the same PCB as pod assemblies (pads) consisting of spaced apart pods. Different pods and pads can be placed on a side of or around the desired navigation volume allowing creation of arbitrary navigation spaces. Individual pods can also be used as magnetic field sensors or integrated with additional magnetic field sensors allowing localization of the pods in the system to adjust the navigation volume in real time.

A modular electromagnetic navigation system with reconfigurable magnetic field generating antennas provides improved means for tracking various magnetic wired or wireless sensors with multiple biomedical and industrial applications. Electromagnetic field generating antennas (pods) can be implemented as multilayered printed circuit boards (PCB) with different layers being sufficiently aligned and connected in series for increased magnetic field strength. The pods can be kept separate or implemented on the same PCB as pod assemblies (pads) consisting of spaced apart pods. Different pods and pads can be placed on a side of or around the desired navigation volume allowing creation of arbitrary navigation spaces. Individual pods can also be used as magnetic field sensors or integrated with additional magnetic field sensors allowing localization of the pods in the system to adjust the navigation volume in real time.

Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.

A device having a step-up transformer that includes a magnetic core, a primary winding for connecting to an AC network, and an output secondary winding; and a step-down transformer that includes a magnetic core, a primary winding identical to and connected opposite to the secondary winding of the step-up transformer, and a secondary winding identical to the primary winding of the step-up transformer. The opposite connected secondary winding of the step-up transformer and primary winding of the step-down transformer form a second voltage harmonic generation circuit that generates, when voltage is supplied to the step-up transformer from the AC network, a second voltage harmonic in the windings and magnetic cores of said transformers so that frequency of external voltage oscillations of the AC network is doubled in said second voltage harmonic generation circuit, thereby generating an autoparametric resonance therein.

A power supply platform is provided. It includes a first base, a first transformer mounted above the first base and having an opening in a bottom side of the first transformer, a panel board mounted on the first base, a first disconnect mounted on the panel board, a first wire set extending along a first wire pathway and connecting the first transformer and the first disconnect, and the first wire pathway at least in part extending below the first transformer and entering the first transformer from the opening in the bottom side of the first transformer.

A power supply platform is provided. It includes a first base, a first transformer mounted above the first base and having an opening in a bottom side of the first transformer, a panel board mounted on the first base, a first disconnect mounted on the panel board, a first wire set extending along a first wire pathway and connecting the first transformer and the first disconnect, and the first wire pathway at least in part extending below the first transformer and entering the first transformer from the opening in the bottom side of the first transformer.

An apparatus is provided including a cascaded transformer set and a voltage divider. The cascaded transformer set includes a plurality of transformers, each having a primary and a secondary winding. The secondary winding of one transformer feeds the primary winding of an adjacent transformer. The voltage divider includes a plurality of capacitors and a plurality of resistors configured to divide a voltage applied to the cascaded transformer set among the plurality of transformers. The capacitors of the voltage divider may include a series of disks that are also used in the support structure of the apparatus.

An apparatus is provided including a cascaded transformer set and a voltage divider. The cascaded transformer set includes a plurality of transformers, each having a primary and a secondary winding. The secondary winding of one transformer feeds the primary winding of an adjacent transformer. The voltage divider includes a plurality of capacitors and a plurality of resistors configured to divide a voltage applied to the cascaded transformer set among the plurality of transformers. The capacitors of the voltage divider may include a series of disks that are also used in the support structure of the apparatus.