2025results about "Voltage measurements only" patented technology

An SSD controller dynamically adjusts read thresholds in an NVM to reduce errors due to device threshold voltage distribution shifts, thus improving performance, reliability, and / or cost of a storage sub-system, such as an SSD. A retention drift clock uses one or more reference pages (or ECC units or blocks) on one or more NVM die as read threshold over time / temperature references, and uses a function of those values as a measure of drift (over time / temperature). At some initial time, the one or more reference pages are programmed and an initial read threshold is measured for each of the one or more reference pages. In some embodiments, read threshold values are averaged among one or more of: all references pages on the same die; and all reference pages in the same one or more die in an I / O device.

A voltage detecting apparatus detects a detection voltage generated in a detected object which is covered by an insulator. The voltage detecting apparatus includes: a detection electrode that is disposed so as to contact the insulator directly, or indirectly via another insulator; a vibrator that causes the insulator to vibrate; a current-to-voltage converter circuit that converts a detection current to a detection voltage signal, the detection current flowing from the detected object via the detection electrode to a reference voltage in a state where the insulator is being caused to vibrate, having an amplitude that is modulated in accordance with a potential difference between the detection voltage and the reference voltage, and being synchronized with vibration of the vibrator; and a detector circuit that detects a detection output indicating the potential difference from the detection voltage signal.

The invention provides a device capable of measuring physical quantity of alternating current at a long distance. The device comprises an analogue sampling passageway, a sampling switch, a register, a bus and a timing controller, wherein the analogue sampling passageway is used for inputting the alternating current to carry out analogue sampling so as to output an analogue sampling value, the sampling switch is used for resampling so as to obtain a remote-measurement data frequency required at a receiving side, the register is used for storing a resampling value from the sampling switch, the bus is used for outputting the resampling value in the register to the receiving side, and the timing controller is used for controlling resampling frequencies of the analogue sampling passageway and the sampling switch; and the device is characterized by further comprising a digital low-pass filter which is used for filtering a high-frequency component in the sampling value, wherein an input of the digital low-pass filter is connected with the analogue sampling value output by the analogue sampling passageway, an output of the digital low-pass filter is connected with the sampling switch, and cut-off frequency of the digital low-pass filter must be 0.5 folds smaller than the resampling frequency of the sampling switch. The invention also provides a corresponding method. When the device is adopted, the remote measurement accuracy of power physical quantity is increased, a waveform value is output through resampling, and an effective value, a steady-state value as well as a fundamental harmonic effective value and steady-state value are also output, so that many requirements of the receiving side for remote measurement data can be met.

A reference potential adjusting apparatus is provided. The reference potential adjusting apparatus includes a reference potential measuring unit configured to measure a potential of a solution, a counter electrode disposed in the solution, and configured to change the potential of the solution through oxidation-reduction reactions with the solution, and a comparator configured to compare a measurement voltage provided by the reference voltage measuring unit to a reference voltage provided by a reference voltage supply unit, and to adjust reactions of the counter electrode with the solution according to the result of the comparison. The reference potential measuring unit includes a reference electrode, a common electrode disposed to be spaced apart from the reference electrode, and at least one nano structure contacting the reference electrode and the common electrode, and having electrical conductivity changing according to the potential of the solution.

A voltage sensor housing includes a top portion including a conductive top portion composed of conductive material and non-conductive top portions composed of non-conductive material, a bottom portion composed of non-conductive material, side portions composed of non-conductive material, wherein the top portion the bottom portion and the side portions define an interior area structured to hold a voltage sensor, and conductive side portions composed of conductive material and being disposed adjacent to the side portions. The conductive top portion is electrically floating and the conductive side portions are electrically grounded.