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This paper demonstrates the process of characterizing on-wafer RF components for RFIC devices by using a three-steps de-embedding method. Three RF passive components are used for this purpose: spiral inductor, metal-finger capacitor and silicide-block N-poly resistor. The DUTs together with their calibration structure was fabricated in 0.13 ??m CMOS technology. Comparisons between the simulated data,...
A leading edge 32 nm high-k/metal gate transistor technology has been optimized for SoC platform applications that span a wide range of power, performance, and feature space. This technology has been developed to be modular, offering mix-and-match transistors, interconnects, RF/analog passive elements, embedded memory, and noise mitigation options. The low gate leakage of the high-k gate dielectric...
Recently, it has been established that the problem of power factor compensation for nonlinear loads with non-sinusoidal source voltage can be recast in terms of the property of cyclo-dissipativity. Using this framework the classical capacitor and inductor compensators can be interpreted in terms of energy equalization. Unfortunately, the supply rate is a function of the load, which is usually unknown,...
Instantaneous charge/flux transfers may occur in switched electrical circuits when the switch configuration changes. Characterization of such state discontinuities is a classical issue in circuit theory which, typically, is based on the so-called charge and flux conservation principle. This paper proposes a general state transfer principle for arbitrary switching port-Hamiltonian systems. This new...
This paper presents a low-power down-conversion mixer for 3.1~4.8 GHz MB-OFDM UWB applications. The proposed mixer is based on folded double-balanced Gilbert cell and employs following techniques: two cross-coupling capacitors at the transconductance stage enhance conversion gain and reduce input noise; two choke inductors reduce flicker noise from the switch quad; tuning capacitors and resistors...
This paper presents a class D series resonant inverter with a series capacitor and an auxiliary switch. A capacitor and a switch connected in parallel are added to the series resonant circuit in series, which regulates the output power without frequency modulation. The entire impedance is changed by the difference between the switching frequency and the two resonant frequencies. While the auxiliary...
By employing the coupled-inductor technique to the two cascaded boost converters, a single-switch high conversion ratio DC-DC converter is proposed. Unlike its predecessor, high voltage gain can be obtained without operating at extreme duty cycle. In addition to the operating principles and the analysis, a 100 kHz 36-75 V DC input, 400 V/240 W converter is implemented and tested. The 91.2% maximum...
This paper deals with the concept of (integer-order) memristive systems, which are generalized to non-integer order case using fractional calculus. We consider the memory effect of the fractional inductor (fractductor), fractional capacitor and fractional memristor. We also show that the memory effect of such devices can be also used for an analogue implementation of the fractional-order operator,...
The application of network methods to electromagnetic field problems can contribute significantly to problem formulation and to an efficient solution methodology. Lumped element representation of electromagnetic structures consisting of inductors, capacitors, resistors and exciting sources embedded in a connection circuit with ideal transformers are revisited. Applying Richards transformation, inductors...
The paper presents a new version of the generalized hybrid method for the steady-state analysis of the analog circuits with strong nonlinearities, driven by signals with widely separated frequencies. The key idea is to formulate the circuit hybrid equations by using for signal representation multiple time-scales, which transform the differential algebraic equations (DAEs) describing the nonlinear...
A methodology of SPICE modeling of general memristive, memcapacitative, and meminductive systems is proposed and their special cases such as memristors (MR), memcapacitors (MC), and meminductors (ML) are given. These elements are included alongside the conventional R, C, and L elements in a proposed constellation, which generalizes the hitherto approach when the memristor is regarded as a fourth missing...
A PWL (PieceWise Linear) model of the new found memristor is proposed in this article. A simple second order circuit containing an inductor, a capacitor, a resistor and a memristor serves as an example to illustrate the application of this model. The circuit equation is established then Matlab simulation is performed. It is believed from this example that the model could provide satisfactory result...
We present a combined LNA-mixer circuit with low area and low power, for the 2.4 GHz ISM band. The circuit has two versions: one has an output RC low-pass filter suitable for low IF frequencies; the other has an output LC band-pass filter suitable for medium IF frequencies. Circuits, with IF of 50 MHz and 400 MHz, were designed using UMC 0.13 mum CMOS technology and 1.2 V supply, and dissipate approximately...
LCL-type filter possessing sufficient attenuation ratio for switching ripple with small LC parameters is appropriate to be used as output filter to get high slew rate of compensation current. However, LCL-filter, as a three order resonant circuit itself, is difficult to be stable. This paper compares active and passive methods for LCL-filter resonance damping; assesses their suitability for the high...
The DC/DC step-up converter is used to deliver a higher dc voltage from a lower dc supply to load in many real life applications (photovoltaic systems including a batteries banc, mobile phones, and computer power supply...). The aim of this work is to design and realize a voltage mode control using the analogue SG1843 PWM regulator for a step-up converter running in continuous conduction mode (CCM),...
This paper introduces the new PFC integration control chip-UCC28019, provides the PFC circuit based on UCC28019 and the essential circuit parameter computation method. The actual power factor is 0.998 through testing a 350 W prototype, this paper presents the experimental waveforms. The experimental results have proved that the PFC circuit has these characteristics: simple circuit, conveniently to...
The behavior of a novel frequency divider circuit using negative differential resistance (NDR) circuit is studied. This NDR circuit is made of resistors (R) and bipolar-junction-transistor (BJT) devices. It can show the NDR characteristic in its combined current-voltage curve by suitably arranging the resistances. We call this NDR circuit as R-BJT-NDR circuit in this paper. A chaos circuit consisted...
The contribution is concerned on the properties of the new ideal circuit element, a memristor. By definition, a memristor relates the charge q and the magnetic flux ?? in a circuit, and complements a resistor R, a capacitor C, and an inductor L as an ingredient of ideal electrical circuits. The properties of these three elements and their circuits are a part of the standard curricula. The existence...
The memdevices we have defined open up a whole new world of possibilities in electronics and provide us with new tools to study old scientific problems from a new perspective. Due to their recent introduction, it is difficult to say what new applications will be found and which course the field will take from here. Irrespective, we believe the time is ripe for new and exciting innovations in electronics...
The contribution is concerned on the properties of the new ideal circuit element, a memristor. By definition, a memristor relates the charge q and the magnetic flux in a circuit, and complements a resistor R, a capacitor C, and an inductor L as an ingredient of ideal electrical circuits. The properties of these three elements and their circuits are a part of the standard curricula. The existence of...
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