7 results about "Capacitive divider" patented technology

Techniques are disclosed to instruct how a switched capacitor digital power amplifier (PA) is configured to operate using high supply voltage levels beyond twice the maximum voltage rating for any of the transistor terminals such as Vds / Vdg / Vsg. The digital PA has a topology that comprises a dual-feedback capacitive path that comprises a capacitive divider and a voltage stabilizing feedback path to selectively couple the capacitive divider to DC bias voltages.

A capacitive sensor having a cylindrical capacitor, for a conductor of a GIS. The capacitive sensor having at least two digital or analog temperature sensors.

This invention relates to a vacuum drying oven and method for capacitor voltage dividers, comprising a drying chamber, with a gas filling chamber and a heating chamber arranged sequentially from top to bottom at the lower end of the drying chamber. The gas filling chamber is connected to a heating gas pipeline, and the heating chamber is connected to a high-temperature oil injection pipeline. Multiple vent holes at the lower end of the drying chamber communicate with the gas filling chamber. Additionally, a cavity is provided within the drying chamber wall, communicating with the gas filling chamber. An exhaust pipeline and a vacuum pipeline are provided on the drying chamber. Control valves for controlling the on / off state of the heating gas pipeline, high-temperature oil injection pipeline, exhaust pipeline, and vacuum pipeline are all provided on the pipelines. A core assembly frame is located inside the drying chamber, and the core assembly frame has multiple layers of support frames along its height. During drying, capacitor core assemblies are placed on the corresponding layers of support frames, with capacitor core assemblies on adjacent support frames placed vertically. This invention significantly improves the drying efficiency of capacitor core assemblies, and is particularly suitable for large-scale production.

The present invention provides an electronic device comprising: a battery; a switched capacitor voltage divider (SCVD) including a plurality of switches and a flying capacitor, and configured to convert a voltage of power provided from the outside according to a designated ratio and supply the converted voltage to the battery or a system of the electronic device; a switch circuit disposed between the SCVD and a node for supplying power to the system; and a control circuit. The control circuit may be configured to identify a battery voltage output from the battery, control the plurality of switches such that the flying capacitor and the battery are connected in series in a first time interval of a switching period of the plurality of switches included in the SCVD, and control the plurality of switches such that the flying capacitor and the battery are connected in parallel in a second time interval of the switching period. On the basis of applying, to the switch circuit, a voltage obtained by adding a charging voltage of the flying capacitor and the battery voltage according to a duty ratio indicating a ratio of the first time interval to the switching period, a first voltage higher than a designated voltage may be supplied to the node through the switch circuit.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing a SAR ADC circuit with improved quantization error. In some implementations, an apparatus includes an analog-to-digital converter (ADC) configured to receive a set of voltage signals and generate digital representations of signals. The ADC comprises a capacitive digital-to-analog converter (CDAC) comprising a capacitive divider circuit, the capacitive divider circuit comprising (i) a first capacitor in parallel with a second capacitor in a first branch, (ii) a plurality of capacitors in a plurality of other respective branches, and (iii) the CDAC configured to receive the set of sampled voltages and adjust each set of the sampled voltages by a first voltage or a second voltage through selection of one or more capacitors of the (i) first capacitor and the second capacitor and (ii) one or more of the plurality of capacitors.

A line sensor is for being mounted to a power line. The line sensor includes: i) a housing for containing line sensor electronics; and ii) a voltage-sensing capacitor in connection with the housing. The line sensor is characterized by an electric circuit connected in parallel with the first capacitance for receiving a harvested voltage standing over the two capacitor plates, the electric circuit being configured for operating in an energy harvesting mode and / or a voltage-sensing mode. The line sensor is further characterized by a slot antenna integrated in the first, upper, one of the capacitor plates, wherein in the second, lower, one of the capacitor plates an opening allows radio-frequency waves generated by the slot antenna to be transmitted through the opening. Thereby a single component multi-purpose structure is formed enabling both the energy harvesting mode and the voltage sensing mode as well as wireless communication with other units.