On-chip inductors are widely used in many modern RFICs. Realization of high-Q inductors often requires extra back-end processing and costly chip area. Accurate modeling and thorough optimization of the inductor are required for best performance. In this paper we present a scalable broadband inductor model. The model supports multiple symmetric and asymmetric inductor layouts and has been incorp...

This paper concerns the technological limitation of fully monolithic dc-dc converters. Two types of circuits were investigated on AMS CMOS 0.35 μm process. Comparison between efficiency results of architectures used on-chip and off-chip filter’s inductors are made. The inductors influence over the dc-dc converters performance is evaluated. Input voltage of 3.6V, which is the normal voltage for ...

20 The maximum dissipation gain over the conventional case is given by: (53) Example: (54) Notes: 1. We have assumed that the same is used for each step; that the number of steps is large enough for the initial assumption of identical curve forms for each step not to introduce a huge error; and, most importantly, that the resistance of a switch is linear. The optimality must therefore not be ta...

A method and system are proposed for a transient-free commutation of a resonant-mode array of inductors. A single capacitor is used to tune the entire array, and triacs are used to commutate the inductors. To avoid the transients, the tuning capacitor is electrically locked when it stores the whole energy of the excited circuit. This prevents the capacitor from discharge during the fast, 0.1 ms...

This paper presents the design of a multilevel pyramidically wound symmetric (MPS) inductor structure. Being multilevel, the MPS inductor achieves high inductance to area ratio and hence occupies smaller silicon area. The symmetric inductor is realized by winding the metal trace of the spiral coil down and up in a pyramidal manner exploiting the multilevel VLSI interconnects technology. Closed ...

We study the entanglement and memristive properties of three coupled quantum memristors. consider memristors based on superconducting asymmetric SQUID architectures which are via inductors. The arranged in two different geometries: linear triangular coupling configurations. obtain a variety correlation measures, including bipartite tripartite negativity. find that, for identical memristors, mem...

Q-enhanced LC filters are presented as an alternative to off-chip filters in a High-IF type heterodyne receiver. The dynamic range limitations of this type of filter are analyzed and a closed form expression is given for the dynamic range given circuit parameters and operating Q. Test chips are implemented that include both on and off-chip inductors to obtain filters in the frequency range of 5...

Inductors are essential components of radio frequency integrated circuits (RFICs). While the active devices in RF systems downscale steadily, inductors have not been able to keep up with the pace of continual miniaturization because of the trade-off between size and performance as well as fabrication complexity. Strain-induced self-rolled-up nanotechnology allows the formation of three-dimensio...

Because the on-board charger (OBC) is installed in electric vehicles (EVs), high power density is regarded as a key technology. Among components of the OBC, inductors occupy more than 30% of the total volume. Thus, it is important to reduce the volume and the weight of inductors while maintaining thermal stability. Discontinuous conduction mode (DCM) can satisfy these requirements; however, onl...

The Noise Figure of a Low Noise Amplifier is a function of the quality factor of its inductors. The lack of high-Q inductors in silicon has prevented the development of completely integrated CMOS LNAs for high sensitivity applications like GSM (1.9 GHz) and W-CDMA (2.1 GHz). Recent developments in the design of high-Q inductors (embedded in low cost IC packages) have made single-package integra...