A booster circuit includes, at a substrate end of an insulating substrate, an input part of voltage, an output part of voltage, and a conductive L-shaped joint fitting. The L-shaped joint fitting includes a plate-shaped bottom surface portion attached to the insulating substrate and a plate-shaped back surface portion bent from the bottom surface portion and extending in a specific direction. In the input part and the output part, a capacitor, a diode, and a connection line connecting the insulating substrates are electrically connected at a component connecting portion, and the L-shaped joint fitting is disposed such that a lead forming portion of a lead connected to the capacitor, a lead forming portion of a lead connected to the diode, and the component connecting portion fit within an area of a main surface of the back surface portion and an area of a main surface of the bottom surface portion.

A booster circuit includes, at a substrate end of an insulating substrate, an input part of voltage, an output part of voltage, and a conductive L-shaped joint fitting. The L-shaped joint fitting includes a plate-shaped bottom surface portion attached to the insulating substrate and a plate-shaped back surface portion bent from the bottom surface portion and extending in a specific direction. In the input part and the output part, a capacitor, a diode, and a connection line connecting the insulating substrates are electrically connected at a component connecting portion, and the L-shaped joint fitting is disposed such that a lead forming portion of a lead connected to the capacitor, a lead forming portion of a lead connected to the diode, and the component connecting portion fit within an area of a main surface of the back surface portion and an area of a main surface of the bottom surface portion.

An apparatus comprises a switch, a current monitor, and a controller. During operation, the switch controls an amount of current through the load. The current monitor samples a magnitude of the current through the load, a magnitude of which varies over time during a time duration. Based on integrating the sample magnitudes of the current through the load over the time duration, the current monitor produces a current sense value. The current sense value is representative of an amount of current through the load. The controller controls an operational state of the switch based upon a comparison of the current sense value with respect to an over-current threshold value. For example, in response to detecting a condition in which the current sense value is greater than the overcurrent threshold value, the controller turns OFF (deactivates) the switch, reducing or eliminating delivery of current through the load.

An apparatus for wireless power transfer is disclosed. An alternate apparatus and a system perform the functions of the apparatus. The apparatus includes a wireless power transfer (“WPT”) pad, a secondary circuit with a rectification section that receives power from the WPT pad, a capacitor, and a first rectification device connected to the capacitor. The capacitor and first rectification device are connected in parallel with the rectification section and in parallel with a load. The apparatus includes a second rectification device connected to the rectification section and an intermediate node between the capacitor and first rectification device.

An apparatus for wireless power transfer is disclosed. An alternate apparatus and a system perform the functions of the apparatus. The apparatus includes a wireless power transfer (“WPT”) pad, a secondary circuit with a rectification section that receives power from the WPT pad, a capacitor, and a first rectification device connected to the capacitor. The capacitor and first rectification device are connected in parallel with the rectification section and in parallel with a load. The apparatus includes a second rectification device connected to the rectification section and an intermediate node between the capacitor and first rectification device.

The inventive technology, in certain embodiments, may be generally described as a solar power generation system with a converter, which may potentially include two or more sub-converters, established intermediately of one or more strings of solar panels. Particular embodiments may involve sweet spot operation in order to achieve improvements in efficiency, and bucking of open circuit voltages by the converter in order that more panels may be placed on an individual string or substring, reducing the number of strings required for a given design, and achieving overall system and array manufacture savings.

The inventive technology, in certain embodiments, may be generally described as a solar power generation system with a converter, which may potentially include two or more sub-converters, established intermediately of one or more strings of solar panels. Particular embodiments may involve sweet spot operation in order to achieve improvements in efficiency, and bucking of open circuit voltages by the converter in order that more panels may be placed on an individual string or substring, reducing the number of strings required for a given design, and achieving overall system and array manufacture savings.

In one embodiment, the present invention is directed to an ear tip having a proximal end and a distal end, the eartip including: a transmit coil, the transmit coil including a core of a ferromagnetic material, the ferromagnetic core having a central channel there through, a distal end of the ferromagnetic core positioned at a first opening in a distal end of the ear tip; a passage extending from an opening at a proximal end of the ear tip to the distal end of the ear tip, the passage ending at a second opening in the distal end of the ear tip, wherein a proximal end of the central channel is connected to the passage.

In one embodiment, the present invention is directed to an ear tip having a proximal end and a distal end, the eartip including: a transmit coil, the transmit coil including a core of a ferromagnetic material, the ferromagnetic core having a central channel there through, a distal end of the ferromagnetic core positioned at a first opening in a distal end of the ear tip; a passage extending from an opening at a proximal end of the ear tip to the distal end of the ear tip, the passage ending at a second opening in the distal end of the ear tip, wherein a proximal end of the central channel is connected to the passage.

Power delivery may be controlled to help prevent arcing when a data cable supplying power from a power source device to a power sink device is disconnected. The presence of a user in proximity to a connection between a cable plug and a cable receptacle may be detected. The level of a power signal being conveyed from the power source to the power sink may be reduced in response to the detection.