Topic
Inductor
About: Inductor is a research topic. Over the lifetime, 52565 publications have been published within this topic receiving 484068 citations. The topic is also known as: passive two terminal.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, two new mechanisms for common-mode choke saturation due to CM voltage were proposed, and these mechanisms were verified in an experiment with a motor drive system with high CM voltage and comparably higher stray grounding capacitance.
Abstract: Common-mode (CM) choke saturation is a practical problem in CM filter applications. It is generally believed that the leakage inductance of CM chokes makes the core saturated. This paper analyzes two new mechanisms for CM choke saturation due to CM voltage, and these mechanisms are verified in experiment. CM choke saturation is particularly important for motor drive systems, which have a high CM voltage and comparably higher stray grounding capacitance. A model is established to describe the relationship between the CM voltage and the volume of the CM magnetic components. According to the analysis, line impedance stabilization networks (LISNs) play an important role in the design of CM magnetic components.
91 citations
Patent•
28 May 1993
TL;DR: A magnetic resonance probe coil (20) is made of a spiral inductor (22) consisting of several turns of a superconducting film (24). Distributed throughout the inductor are interdigital capacitive elements (26).
Abstract: A magnetic resonance probe coil (20) is made of a spiral inductor (22) consisting of several turns of a superconducting film (24). Distributed throughout the inductor are interdigital capacitive elements (26). The turns of superconducting film (24) may be literally a spiral, or they may be concentric circles, slit over short parts of their circumference, and connected with primarily radial segments joined to effect a functional spiral.
91 citations
TL;DR: A low energy dissipation circuit is proposed to achieve more effective energy harvesting, called 'synchronized switch harvesting on inductor (SSHI), and it is confirmed that the storage voltage in the steady state is independent of the storage capacitance through extensive energy-harvesting experiments.
Abstract: A low energy dissipation circuit is proposed to achieve more effective energy harvesting, called 'synchronized switch harvesting on inductor (SSHI)'. The proposed circuit only has two diodes, while the original SSHI circuit has four diodes comprising a diode bridge. It thus reduces the voltage drop during the energy-harvesting process, because the actual diodes have forward voltage regarded as equivalent electrical resistance or energy dissipation. Energy-harvesting experiments demonstrated that the proposed circuit increases the harvested energy output to as much as 120% of that for the original SSHI circuit. We confirmed that the storage voltage in the steady state is independent of the storage capacitance through extensive energy-harvesting experiments, and that the settling time of the storage voltage is proportional to the storage capacitance but independent of the harvesting circuit.
91 citations
TL;DR: In this article, the authors proposed a boost topology which has continuous or ripple-free input current when it operates with discontinuous inductor-current and compared it with traditional converter topologies such as the Sepic and Cuk power converters.
Abstract: Coupled inductor techniques supply a method to reduce the power converter size and weight and achieve ripple-free current. The boost power converter is a very popular topology in industry. However, the input-current ripple hinders efforts to meet electromagnetic interference (EMI) requirements. In particular, the input current becomes discontinuous and pulsating when the conventional boost power converter operates in the discontinuous inductor-current mode. This paper describes a boost power converter which has the same discontinuous properties as the conventional boost power converter. However, the proposed boost topology has continuous or ripple-free input current when it operates with discontinuous inductor-current. The proposed topology is compared with traditional converter topologies, such as the Sepic and Cuk power converters. Simulation results are presented. The prototype is built to demonstrate the theoretical prediction. The proposed boost topology is simple, with straightforward control ~the same as pulse-width modulation (PWM)\.
91 citations
Patent•
02 Mar 1998TL;DR: In this article, a single-stage, single-switch input current shaping circuit was proposed to reduce turn-on switching losses of the switch in the flyback-converter by turning on the switch when its voltage is minimal or close to minimal.
Abstract: A new single stage, single switch input current shaping circuit features substantially reduced turn-on switching losses of the switch in the flyback-converter. In this technique, the turn-on switching losses due to the discharge of the output capacitance of the switch are reduced by turning on the switch when its voltage is minimal or close to the minimal. To achieve the turn-on loss reduction for a wide range of line and load conditions, the flyback-converter stage is continuously operated at the boundary of the CCM and DCM by employing a variable-frequency control. In this technique the boost inductor can work either in the DCM or the CCM. The wide-bandwidth, variable-frequency control is implemented by detecting the onset of the DCM/CCM boundary and, subsequently, turning the switch on at the minimum switch voltage. The switch is turned off when the increasing primary current reaches a reference level set by the output-voltage feedback control circuit.
91 citations