Topic
Negative impedance converter
About: Negative impedance converter is a research topic. Over the lifetime, 5801 publications have been published within this topic receiving 87636 citations.
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Patent•
27 Sep 2011TL;DR: A word line voltage generating method of a flash memory which includes generating a program voltage using a positive voltage generator, generating a plurality of negative program verification voltages corresponding to a majority of negative data states using a negative voltage generator; and generating at least one or more program verification voltage corresponding to at least 1 or more states using the positive generator is described in this article.
Abstract: A word line voltage generating method of a flash memory which includes generating a program voltage using a positive voltage generator; generating a plurality of negative program verification voltages corresponding to a plurality of negative data states using a negative voltage generator; and generating at least one or more program verification voltages corresponding to at least one or more states using the positive voltage generator. Generating a plurality of negative program verification voltages includes generating a first negative verification voltage; discharging an output of the negative voltage generator to become higher than the first negative verification voltage; and performing a negative charge pumping operation until an output of the negative voltage generator reaches a second negative verification voltage level.
32 citations
TL;DR: In this paper, the authors examined the application of the Double-fed Induction Generator for an isolated wind power system to supply the remote area, which is capable of supplying different loads such as balanced, unbalanced and nonlinear loads.
32 citations
01 Jan 1984
TL;DR: In this article, the oscillator circuit comprises an amplifier having a pair of inputs, a positive feedback path, a negative feedback path including a series resonant circuit, and an output path which is separate from the input path so that a high output signal level can be achieved while maintaining a low current.
Abstract: The oscillator circuit comprises an amplifier having a pair of inputs, a positive feedback path producing a positive feedback ratio to one of the inputs, and a negative feedback path including a series resonant circuit producing a negative feedback ratio to the other of the inputs. The positive and negative feedback paths are independent such that the current in each of the paths can be adjusted independently. In this manner, a high Q multiplier effect is achieved. Also, the circuit has an output path which is separate from the input path so that a high output signal level can be achieved while maintaining a low current through the series resonant circuit.
32 citations
Patent•
12 Sep 1996
TL;DR: A temperature-to-voltage converter includes an adder circuit configured to subtract the negative-temperature-coefficient signal from the positive temperature coefficient signal as discussed by the authors, and the resulting difference signal is a low voltage that exhibits linear temperature tovoltage conversion.
Abstract: A temperature-to-voltage converter includes a first circuit for developing a signal having a positive temperature coefficient and a second circuit for developing a signal having a voltage offset and a negative temperature coefficient. The converter also includes an adder circuit configured to subtract the negative-temperature-coefficient signal from the positive-temperature-coefficient signal. The resulting difference signal is a low voltage that exhibits linear temperature-to-voltage conversion, allowing the converter to be powered by a low operating voltage.
32 citations
Patent•
29 Jun 2007TL;DR: In this article, a control gate read voltage is applied to a selected word line of a non-volatile storage element, and source and p-well voltages are applied to the source and a pwell, respectively.
Abstract: Current sensing is performed in a non-volatile storage device for a selected non-volatile storage element with a negative threshold voltage. A control gate read voltage is applied to a selected word line of a non-volatile storage element, and source and p-well voltages are applied to a source and a p-well, respectively, associated with the non-volatile storage element. The source and p-well voltages exceed the control gate read voltage so that a positive control gate read voltage can be used. There is no need for a negative charge pump to apply a negative word line voltage even for sensing a negative threshold voltage. A programming condition of the non-volatile storage element is determined by sensing a voltage drop which is tied to a fixed current which flows in a NAND string of the non-volatile storage element.
32 citations