3 results about "RC time constant" patented technology

The present disclosure relates to tracking RC time constants through word lines in a memory device. A memory device includes a memory array comprising a plurality of word lines, and control logic operably coupled with the memory array. The control logic causes a measurement programming pulse to be sequentially applied to each of the plurality of word lines of the memory array, and determines respective threshold voltages stored in a plurality of memory cells associated with each of the plurality of word lines. The control logic further determines a difference between the respective threshold voltages based on a location of the plurality of memory cells within each word line, and determines a respective resistance-capacitance, RC, time constant for each of the plurality of word lines in view of the difference between the respective threshold voltages.

This invention discloses a pseudo-resistor circuit, an RC filter circuit, a current mirror circuit, and a chip. The pseudo-resistor circuit includes a first MOSFET and a bias circuit. The bias circuit provides a bias voltage between the gate and source of the first MOSFET to enable the first MOSFET to operate in the subthreshold region, and adjusts the resistance value of the first MOSFET by adjusting this bias voltage. The pseudo-resistor circuit, RC filter circuit, current mirror circuit, and chip of this invention can achieve a high resistance value with a smaller area. This reduces the resistor area and allows for a smaller capacitor value to achieve the same RC time constant, thus reducing the capacitor area. Furthermore, the resistance value of this pseudo-resistor is less affected by process voltage-temperature (PVT), ensuring that the filtering effect of the RC filter does not change significantly with variations in PVT.

A reservoir element includes a plurality of units. Each of units constituting the plurality of units is connected to at least one or more different units. Each of the plurality of units includes an input terminal to which a first signal is input, a resistor which is connected to the input terminal, a capacitor which is connected to an opposite side of the resistor to the input terminal and is provided between the resistor and a reference potential, a switching element which is connected to the capacitor, and an output terminal which is connected to the switching element. At least one of the plurality of units differs from other units in an RC time constant.