An electronic device includes a substrate, a plurality of conductive patterns, and a tunable element. A plurality of conductive patterns are disposed on the substrate. The tunable element is disposed on at least one conductive pattern in the plurality of conductive patterns and includes a first pad, a second pad, and a third pad. The first pad, the second pad, and the third pad are separated from each other. The first pad and the second pad are overlapped with the at least one conductive pattern in the plurality of conductive patterns. The third pad is disposed between the first pad and the second pad.

A current control module is employed to protect a conductive feature of a printed circuit board (PCB) from an overcurrent event by comparing a reference voltage output from a compensation circuit connected to a reference power supply to a voltage output from a conductive feature connected to a power supply which is different from the reference power supply. The reference output voltage is representative of an anticipated voltage output from the conductive feature. The current control module is configured to initiate regulation of power to the conductive feature when the voltage output from the conductive feature exceeds the reference voltage output.

An overvoltage protection device having a printed circuit board, a varistor having a metal-oxide varistor body that has a face and a conductive metal layer deposited on the face where the varistor is connected to a first electrical connection terminal by a first connection track of the printed circuit board and a disconnection tab is disclosed. The disconnection tab being fastened directly to the metal layer by a thermofusible link and exerting a traction force on the metal layer so that the disconnection tab moves away from the metal layer and disconnects the electrical connection between the first terminal and the varistor in response to melting of the thermofusible link is also disclosed.

An antenna assembly according to the invention includes a universal whip mount for mounting one of a variety of antenna whips to the antenna assembly, a loading coil inductor and a circuit board having a combination of both fixed and variable capacitors. The antenna assembly of the invention can be tuned to a wide range of frequencies with minimal disassembly and without soldering.

An article comprising a heater that comprises a high-resistance magnification (HRM) PTC ink deposited on a flexible substrate to form one or more resistors. The HRM PTC ink has a resistance magnification of at least 20 in a temperature range of at least 20 degrees Celsius above a switching temperature of the ink, the resistance magnification being defined as a ratio between a resistance of the double-resin ink at a temperature ‘T’ and a resistance of the double-resin ink at 25 degrees Celsius.

An electronic device includes a substrate, a plurality of conductive patterns, and a tunable element. A plurality of conductive patterns are disposed on the substrate. The tunable element is disposed on at least one conductive pattern in the plurality of conductive patterns and includes a first pad, a second pad, and a third pad. The first pad, the second pad, and the third pad are separated from each other. The first pad and the second pad are overlapped with the at least one conductive pattern in the plurality of conductive patterns. The third pad is disposed between the first pad and the second pad.

A temperature-variable standoff includes a temperature-variable electrical element. The standoff also includes a support body that supports the temperature-variable electrical element and that is configured to support a circuit board separated at a distance from another component of an electronics assembly. The support body is configured to attach to the circuit board and to project away from the circuit board with a first end proximate the circuit board and a second end spaced away from the circuit board. The standoff further includes an electrical connector supported proximate the first end. The electrical connector is configured to electrically connect within an electrical circuit of the circuit board to provide the electrical input to the temperature-variable electrical element for selectively varying the temperature thereof.

A battery pack including at least one battery cell including a first surface and a second surface forming opposite ends along a height direction thereof, and an outer circumferential surface connecting the first surface and the second surface; and a flexible circuit board configured to obtain state information of the at least one battery cell, the flexible circuit board including a corrugated main body at least partially surrounding the outer circumferential surface of the at least one battery cell, and branch portions extending from the main body onto the first surface or the second surface of the at least one battery cell.

A semi-finished product of an electric heater device has a casing body (2) defining a housing for at least one electric heater. The casing body (2) has a first or predefined configuration, in particular a substantially planar, or plate-like, or two-dimensional configuration, and is prearranged for being folded in substantially predetermined areas (1a), which define in the casing body (2) a plurality of regions (4, 5, 6) that are at least in part relatively stiff and are suitable to be folded with respect to one another in one said folding area (1a). In this way, a second or different configuration, in particular a substantially three-dimensional configuration, can be bestowed upon the casing body (2).

An overvoltage protection device having a printed circuit board, varistor, and gas discharge tube, the varistor and discharge tube connected in series between a second and third electrical connection terminal of the circuit board via conductive tracks, wherein the varistor is connected to the first terminal by a third conductive track, the discharge tube is connected to the varistor by a fourth conductive track, the discharge tube is connected to the third electrical connection terminal by a sixth conductive track, and wherein the fourth and sixth conductive tracks have curved portions situated on either side of the discharge tube, having a concavity facing in the same orientation respective to the discharge tube and a thermofusible area able to separate a corresponding track into two parts in response to an overcurrent, a distance between the two parts of each track allowing generation of an arc in response to an overvoltage that activates the discharge tube.