A flexible circuit (FC) comprises a primary dielectric layer having a plurality of substantially parallel conductive circuit traces disposed therein and a secondary dielectric layer extending from or attached to the primary dielectric layer, wherein the secondary dielectric layer does not have any conductive circuit traces disposed therein, and wherein at least one of the primary and secondary dielectric layers defines an alignment feature for wrapping and securing the FC about a central structure. A method of wrapping and securing the FC about a central stricture comprises wrapping the FC about the central structure while aligning each alignment feature with a respective complimentary alignment feature such that the FC fully encompasses the central structure and is secured thereabout.

An electronic device includes: a host box comprising a host processor configured to control an operation of the electronic device, a host motherboard in which the host processor is disposed, and a host power supply unit (PSU) configured to supply power to a component connected to the host motherboard; and one or more extension boxes controlled by the host box, wherein each of the one or more extension boxes comprises an extension motherboard independent of the host box, and an extension PSU independent of the host box and configured to supply power to a component connected to the extension motherboard.

A power converter includes a power transformer having a body housing two secondary windings, the body having first and second opposing and substantially parallel planar faces, each of the secondary windings having respective first coils and second coils having respective terminals. The terminals of the first coils extend through the first face of the transformer body, and the terminals of the second coils extend through the second face of the transformer body. The converter further includes two printed circuit boards (PCBs) each disposed at a corresponding face of the transformer body, each PCB carrying switches and capacitors of a respective rectifier circuit connected to the terminals of the coils of the respective secondary winding, each PCB including external connections for connecting the rectifier circuits in parallel to form an output of the power converter.

A circuit board includes a substrate, a first circuit layer, a second circuit layer, and a third circuit layer. The substrate includes a base layer, a first metal layer formed on the base layer, and a seed layer formed on the first metal layer. The first circuit layer is located on the substrate and includes the first metal layer and a signal layer formed on a surface of the first metal layer. The second circuit layer is coupled to the first circuit layer and includes the first metal layer, the seed layer, and a connection pillar formed on a surface of the first metal layer and the seed layer. The third circuit layer is coupled to the second circuit layer and includes the seed layer and a coil formed on a surface of the seed layer.

Examples may include techniques for use of a latch to secure a device inserted in a host computing system. The latch including a housing having holes or ports and an active contacts pad to receive external communication or control links routed through the holes or ports and to further route the communication or control links to circuitry at the device. The latch also including a securing pin attached to a lever to secure the device to the host computing system when the lever is engaged.

A heat dissipation structure applied to an electronic device includes a circuit board assembly, a pipe, a refrigerant fluid, and a water pump. The circuit board assembly is provided with a receiving chamber therein, an inlet, and an outlet. Each of the inlet and the outlet communicates with the receiving chamber. The pipe and the receiving chamber together form a liquid channel. The refrigerant fluid is received in the liquid channel. The water pump communicates with the pipe and is configured to circulate the refrigerant fluid in the liquid channel to remove heat from the circuit board assembly.

An electromagnetic tracking system includes a magnetic transmitter configured to output magnetic fields, a receiver responsive to the magnetic fields, an electronics assembly having conductive elements that cause distortion to the magnetic fields, and an output mechanism configured to output a position of the receiver relative to the magnetic transmitter, wherein the magnetic transmitter has at least one winding disposed around a hollow ferromagnetic core comprised of conductive material through which current is made to flow by the electronics, wherein the electronics assembly is at least partially contained within the hollow portion of the hollow ferromagnetic core. Methods of manufacturing include shaping walls into a hollow shell to surround an electronics assembly, covering the hollow shell with ferromagnetic material, inserting the wrapped hollow shell into a plastic bobbin, and winding the plastic bobbin with coil wire to produce three orthogonal windings.

A heat dissipation structure applied to an electronic device includes a circuit board assembly, a pipe, a refrigerant fluid, and a water pump. The circuit board assembly is provided with a receiving chamber therein, an inlet, and an outlet. Each of the inlet and the outlet communicates with the receiving chamber. The pipe and the receiving chamber together form a liquid channel. The refrigerant fluid is received in the liquid channel. The water pump communicates with the pipe and is configured to circulate the refrigerant fluid in the liquid channel to remove heat from the circuit board assembly.

The invention relates to an ion transport device which is designed to transport ions by means of an electric field. The ion transport device has an ion transport channel in which an ion transport chamber is formed. In order to generate the electric field, the ion transport device has a plurality of field generating electrodes which are arranged one behind the other along the length of the ion transport channel in order to move ions through the ion transport chamber in a transport direction. The invention additionally relates to an ion mobility spectrometer and to a mass spectrometer.

An electromagnetic tracking system includes a magnetic transmitter configured to output magnetic fields, a receiver responsive to the magnetic fields, an electronics assembly having conductive elements that cause distortion to the magnetic fields, and an output mechanism configured to output a position of the receiver relative to the magnetic transmitter, wherein the magnetic transmitter has at least one winding disposed around a hollow ferromagnetic core comprised of conductive material through which current is made to flow by the electronics, wherein the electronics assembly is at least partially contained within the hollow portion of the hollow ferromagnetic core. Methods of manufacturing include shaping walls into a hollow shell to surround an electronics assembly, covering the hollow shell with ferromagnetic material, inserting the wrapped hollow shell into a plastic bobbin, and winding the plastic bobbin with coil wire to produce three orthogonal windings.