In this paper, a dual-mode step-down DC-DC converter with an automatic mode-switching circuit is implemented in 28 nm digital CMOS process and embedded RF transceiver chip to power the part. The proposed includes frequency-voltage conversion that designed according principle of charge redistribution on capacitance. can switch modes load without external intervention. This converter, along PMU s...

In this article, a novel circuit, which can function both as quadrature oscillator and universal biquad filter (lowpass, highpass and bandpass functions) is introduced. The features of the circuit are that, working as quadrature oscillator, the oscillation condition and oscillation frequency can be adjusted independently with the input bias currents: functioning as universal biquad filter, the ...

Abstract Very useful in many fields of applied electronics, the classifier find a lot of immediate applications in pattern recognition, artificial intelligence and statistics domains. A new current-mode CMOS classifier based on an Euclidean distance circuit will be further presented. The system is designed for a low-power low-voltage operation that could be achieved by avoiding to use any casco...

In this paper, the circuit performances such as circuit delay, RF characteristics and SRAM static noise margin are presented. These analyses are performed by threedimensional device simulation using Mixed-mode option. The benefit of circuit delay in scaling will be maintained by introducing new structure (SOI, multi-gate), material (silicide, metal gate) and strain effect. However, concerning w...

A current-mode universal biquadratic filter is presented. The architecture has three input terminals, one output terminal using one differential difference current conveyor (DDCC), two grounded capacitors and two resistors. It can realize all standard second-order filter functions, which are, highpass, bandpass, lowpass, notch and allpass responses without changing the circuit topology. The pro...

This paper explains about basic working principles, implementation problems, and experimental results of a new power factor correction (PFC) topology. In this proposed topology, a totem-pole boost PFC circuit that works under interleaved critical-conduction-mode (CRM) condition is presented. The circuit is developed towards high efficiency, high performance, lowcost, simple control scheme, and ...

To solve the flexibility problem in conversion modes, we propose a design method for switched-capacitor (SC) power converters by using a versatile SC converter, and derive theoretical formulas to give circuit properties such as output voltage, power efficiency, etc. According to conditions specified by a user, the proposed converter offers the circuit structure realizing a DC-DC/DC-AC/AC-DC/AC-...

In the field of analog signal processing, there is a strong need for low-voltage and low-power integrated circuits. Especially in the mobile communication circuitry, an analog signal processing circuit must be fed by dry batteries of 1–1.5 V. This paper presents a design and implementation of a current-mode fully-differential analog CMOS integrator operable with such a low supply voltage. This ...

A new electronically tunable current-mode sinusoidal oscillator with three quadrature outputs is presented. The proposed circuit employs three translinear conveyors and two grounded capacitors to realize three quadrature outputs with independent frequency control. The circuit requires no resistors and the frequency of the oscillator can be varied over a wide range by external current control. R...

A new CMOS current-mode controllable low-voltage and low-power logarithmic function circuit is proposed. The circuit provides good dynamic range, controllable output, and reasonable accuracy and it is insensitive to temperature variations. The circuit operates with ±0.5 V supply, consumes 0.3 μW, and has a –3 dB frequency of 2.4 MHz. The functionality of the proposed design is confirmed using T...