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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Papers
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TL;DR: In this article, a step-up dc-dc converter for photovoltaic micro-inverter is proposed, which is composed of an active resonant-clamp circuit and a resonant voltage doubler.
27 citations
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28 May 1993TL;DR: In this paper, a reference voltage generating circuit for converting a first source voltage to a second source voltage includes a positive thermal compensation circuit connected between the source voltage and ground voltage, and a negative thermal compensating circuit responsive to the output of the positive thermal compensated circuit.
Abstract: A reference voltage generating circuit for converting a first source voltage to a second source voltage includes a positive thermal compensation circuit connected between the first source voltage and ground voltage and having a positive thermal coefficient for positively compensating the second source voltage with respect to temperature variations, and a negative thermal compensation circuit responsive to the output of the positive thermal compensation circuit and having a negative thermal coefficient for negatively compensating the second source voltage with respect to temperature variations, wherein the positive and negative thermal coefficients counter-balance each other so as to stabilize the second source voltage.
27 citations
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27 citations
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31 Mar 1992TL;DR: In this paper, a low power bias voltage generation circuitry for content addressable memory cells for a nonvolatile memory is described, which is comprised of a source follower pair and two cascaded high impedance voltage dividers.
Abstract: A low power bias voltage generation circuitry for content addressable memory cells for a nonvolatile memory is described. The bias circuitry is comprised of a source follower pair and two cascaded high impedance voltage dividers. The source follower pair acts as a positive feedback loop coupling between the two high impedance voltage dividers for relatively quickly charging and settling the output node to a predetermined voltage level. The first high impedance voltage divider can relatively quickly provide an input signal to trigger the small-input-load second high impedance voltage divider. The second high impedance voltage divider comprised of two high impedance diode stacks allows most current drawing from the power supply to drive a relatively large output loading during switching. Both first and second high impedance voltage dividers help keep the DC current of the circuit to a relatively low level which helps to reduce the total power consumption of the circuit.
27 citations
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07 Apr 2009
TL;DR: In this article, a switching controller for a PFC converter is presented, which consists of a switching-control circuit, a current-command circuit, programmable feedback circuit, modulator, an over-voltage detection circuit, and a light-load detection circuit.
Abstract: A switching controller for a PFC converter is provided. The switching controller comprises a switching-control circuit, a current-command circuit, a programmable feedback circuit, a modulator, an over-voltage detection circuit, and a light-load detection circuit. The switching controller is capable of regulating a bulk voltage of the PFC converter at different levels in response to load conditions of the PFC converter. A turbo current eliminates a first voltage undershooting of the bulk voltage at the transient that the bulk voltage decreases to arrive at a second level from a first level. A voltage-loop error signal is maximized to eliminate a second voltage undershooting of the bulk voltage at the transient that the bulk voltage starts to increase toward the first level from the second level.
26 citations