RLC circuit

About: RLC circuit is a research topic. Over the lifetime, 14490 publications have been published within this topic receiving 142697 citations.

A Comparative Study of Output Metrics for an MEMS Resonant Sensor Consisting of Three Weakly Coupled Resonators

Abstract: This paper systematically investigates the characteristics of different output metrics for a weakly coupled three degree-of-freedom microelectromechanical systems resonant sensor. The key figures-of-merit examined are sensitivity and linear range. The four main output metrics investigated are mode frequency shift, amplitude difference, amplitude ratio, and eigenstate shift. It is shown from theoretical considerations, equivalent RLC circuit model simulations and electrical measurements, that there is a strong tradeoff between sensitivity and linear range. For instance, the amplitude difference has the best sensitivity but the worst linear range, whereas frequency shift has the widest linear range but the lowest sensitivity. We also show that using the vibrational amplitude ratio as an output metric provides the best balance between sensitivity and linear range. [2016-0077]

Resonant circuit and resonant dc/dc converter

Abstract: The present invention relates to a resonant circuit (20). The resonant circuit is comprising three resonant circuit input nodes (11, 12, 13) and three resonant circuit output nodes (21, 22, 23) a transformer device and resonant tank devices. The transformer device (TR) comprises tree primary windings (LP1, LP2, LP3) and three secondary windings (LS1, LS2, LS3) magnetically connected to each other, where the three secondary windings (LS1, LS2, LS3) are connected to the three resonant circuit output nodes (21, 22, 23). The first, second and third resonant tank devices (RT1, RT2, RT3) are each connected between the respective three resonant circuit input nodes (11, 12, 13) and the respective primary windings (LP1, LP2, LP3). The invention also relates to a resonant DC-DC converter comprising such a resonant circuit (20).

A coupling between electric circuits and 2D magnetic field modeling

Abstract: A method which enables coupling between equations of electric circuits consisting of a lumped element RLC configuration and a magnetic field model is presented. The coupling between the finite-element and the boundary-element methods is used to compute the magnetic field produced by conductors excited by an electric circuit. The conductors involved in this computation may be connected according to any circuit topology and mixed with lumped elements. The method presented is general and allows a transient simulation of eddy current nonlinear problems with conductors excited by electric circuits. >

Frequency selectivity using positive impedance converter-type networks

Abstract: It is shown that positive impedance converter-type networks may be used to realize a driving-point impedance that is ideally a frequency dependent negative resistor. This concept may be used to realize new types of inductorless selective networks. A simple resonant circuit application is discussed.

Proposal for a new resonance adjustment method in magnetically coupled resonance type wireless power transmission

Abstract: In a magnetically coupled resonance system which enables intermediate-range power transmission, over 100 high Q is required in the power transmission resonance circuit. In other words, high-precision adjustment of the resonance frequency is necessary. In this paper, we are proposing a pure-electronic resonance frequency adjustment circuit which does not require any complicated controls. With this proposal, the resonant condition can be maintained without using high-precision parts or mechanical adjustment mechanisms.