In this paper we present new applications of voltage differencing voltage transconductanse amplifier (VDVTA) as current-mode (CM) biquad filter and electronically controllable sinusoidal oscillator (ECSO) using single VDVTA and with four passive components, three passive components respectively. The biquad circuit realizes low pass, high pass, and band pass filter simultaneously without changin...

We describe circuit techniques for a Flash memory which operates with a VDD of 1.5 V. For the interface between the peripheral circuits and the memory core circuits, two types of level shifter circuits are proposed which convert a VDD level signal into the high voltage signals needed for high performance. In order to improve the read performance at a low VDD , a new self-bias bitline voltage se...

This paper presents a new circuit topology of a phase-locked loop that can be used for synchronising a singlephase wind turbine generator (WTG) with the low voltage utility grid. The circuit is based on the time-delay digital tanlock loop (TDTL) architecture and was modelled and simulated using Simulink/MATLAB. The results presented demonstrate the ability of the circuit not only to synchronise...

Each electronic circuit on the printed circuit board (PCB) is designed to operate over a limited range of DC voltage, outside of which circuit operation or performance is not guaranteed. A generalized view of the static voltage and associated tolerance is shown in Figure 1. In order to achieve high speed and low power dissipation, recent microprocessor , DSP and FPGA chips require voltage level...

A low-side switch is a MOSFET or an IGBT that is connected to the ground-referenced and is not floating. In a boost converter, the source terminal of the MOSFET is connected to the circuit ground, which is referred to a low-side MOSFET. To switch an N-channel MOSFET of a boost converter on, the V should be in the order of 10 to 20V. Since the source terminal is grounded, this implies that the g...

A CMOS voltage-to-current converter in weak inversion is presented in this Letter. It can operate for low supply voltage and its power consumption is also low. As the input voltage varies from −0.15 V to 0.15 V, the measured maximum linearity error for the proposed voltageto-current converter, is about 3.35%. Its power consumption is only 26 μW under the supply voltage of 2 V. The proposed volt...

In this paper, an application of voltage differencing voltage transconductance amplifier (VDVTA) in the realization of voltage-mode (VM) multi-input single output (MISO) type biquad is presented. The proposed topology uses one VDVTA as an active element, two capacitors and a grounded resistor. The configuration realizes low pass (LP), high pass (HP), band pass (BP) and notch (BR) filters withou...

This paper examine the effect of subthreshold voltage in function, delay, power and energy. Benchmark circuit c6288 in 45 nm technology is used in this design. The focus of this work is to find the optimal power delay product of benchmark circuit at subthreshold operation. The simulation was done using HSPICE. Results show that the 45nm cell libraries support the subthreshold operation of elect...

An ultra-low quiescent current low-dropout regulator with small output voltage variations and improved load regulation is presented in this paper. It makes use of dynamically-biased shunt feedback as the buffer stage and the LDO regulator can be stable for all load conditions. The proposed structure also employs a momentarily current-boosting circuit to reduce the output voltage to the normal v...