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# IET Circuits, Devices & Systems

## Filter Results

Displaying Results 1 - 10 of 10
• ### Spur reducing architecture of frequency synthesiser using switched capacitors

Publication Year: 2014, Page(s):237 - 245
| | PDF (1240 KB)

This study presents a new spur reducing architecture of phase-locked loop-based frequency synthesiser. In the proposed architecture, an array of switched capacitors and a delay locked loop are used to evenly transfer the charge, coming from its charge pump, to its loop filter at a fixed number of equi-spaced time intervals. It reduces fundamental as well as higher-order harmonics of the reference ... View full abstract»

• ### Power distribution network design with split and merged power rails

Publication Year: 2014, Page(s):246 - 251
| | PDF (549 KB)

In a power distribution network design, it is always desirable to have a clean, undistorted power supply from the voltage source to each of the functional blocks in a microprocessor in order for the chip to function properly. Although a large individual power rails supply is generally preferred, it is usually not feasible in a real-world design due to form factor limitation and cost constraint. Po... View full abstract»

• ### Methodology for designing and verifying switched-capacitor sample and hold circuits used in data converters

Publication Year: 2014, Page(s):252 - 262
Cited by:  Papers (1)
| | PDF (960 KB)

This study presents a full methodological approach to designing and verifying differential sample and hold switched-capacitor circuits generally used in analogue-to-digital converters (ADCs). It provides a step-by-step process for translating system requirements such as signal-to-noise ratio and sampling frequency into ADC requirements and subsequently into operational amplifier topology and speci... View full abstract»

• ### Low-power buffer with voltage boosting and improved frequency compensation for liquid crystal display source drivers

Publication Year: 2014, Page(s):263 - 271
| | PDF (1015 KB)

A pair of complementary class-A buffers with voltage boosting method and improved frequency compensation is proposed. The buffer driving capabilities are enhanced by adding small auxiliary transistors to pull-up/pull-down the gate voltages of the buffer output transistors to improve the transient response. The auxiliary transistors are turned off for power saving in the steady-state operation. The... View full abstract»

• ### 3-10 GHz ultra wideband front-end transceiver in 0.13 μm complementary metal oxide semiconductor for low-power biomedical radar

Publication Year: 2014, Page(s):272 - 279
Cited by:  Papers (1)
| | PDF (990 KB)

A new integrated low-power, low-complexity ultra wideband (UWB) transceiver front-end in standard 130 nm complementary metal oxide semiconductor technology which can be used in UWB radar biomedical sensing applications is proposed in this study. The transceiver comprises of a full UWB band transmitter, an on-chip diplexer and a full UWB band receiver front-end. The transmitter generates Gaussian-p... View full abstract»

• ### High-input impedance voltage-mode differential difference current conveyor transconductance amplifier-based universal filter with single input and five outputs using only grounded passive components

Publication Year: 2014, Page(s):280 - 290
Cited by:  Papers (2)
| | PDF (943 KB)

This study presents a novel high-input impedance voltage-mode differential difference current conveyor transconductance amplifier (DDCCTA)-based universal filter with a single input and five outputs. The proposed configuration uses two DDCCTAs, two grounded capacitors and two grounded resistors. It simultaneously provides voltage-mode lowpass, bandpass, highpass, bandstop and allpass filtering res... View full abstract»

• ### Quasi-digital front-ends for current measurement in integrated circuits with giant magnetoresistance technology

Publication Year: 2014, Page(s):291 - 300
Cited by:  Papers (2)
| | PDF (1232 KB)

In this study, the authors report on two different electronic interfaces for low-power integrated circuits electric current monitoring through current-to-frequency (I-f) conversion schemes. This proposal displays the intrinsic advantages of the quasi-digital systems regarding direct interfacing and self-calibrating capabilities. In addition, as current-sensing devices, they have made use of... View full abstract»

• ### Analysis of a tunnelling magneto-resistance-based angle transducer

Publication Year: 2014, Page(s):301 - 310
| | PDF (655 KB)

An angle transducer that utilises tunnelling magneto-resistance (TMR) type sensor elements is presented and its performance is analysed. The signal conditioning circuit of the proposed angle transducer translates the sine-cosine outputs of a TMR sensor integrated circuit into an output that varies linearly with the sensing angle. An added advantage of the proposed scheme is that the output of the ... View full abstract»

• ### 'New' solutions of Class-E power amplifier with finite dc feed inductor at any duty ratio

Publication Year: 2014, Page(s):311 - 321
Cited by:  Papers (2)
| | PDF (654 KB)

New' Class-E solutions are proposed by varying three different design parameters which are introduced in the voltage and current equations in order to extend the Class-E design space', of which the `new' solutions can apply to optimal and suboptimal operation. The design procedure of suboptimal Class-E power amplifier (PA) is analysed in details and then a suboptimal Class-E PA based on GaN HEMT... View full abstract»

• ### Experimental demonstration of a 10BASE-T Ethernet visible light communications system using white phosphor light-emitting diodes

Publication Year: 2014, Page(s):322 - 330
Cited by:  Papers (7)
| | PDF (628 KB)

In this study, a compact design of a highly efficient, and a high luminosity light-emitting diode (LED)-based visible light communications system is presented, which is capable of providing standard room illumination levels and also wide-coverage Ethernet 10BASE-T optical wireless downlink communications over a distance of 2.3 m using commercial white light phosphor LEDs. The measured signal-to-no... View full abstract»

## Aims & Scope

IET Circuits, Devices & Systems covers the following topics:

Circuit theory and design, circuit analysis and simulation, computer aided design; filters (analogue and switched capacitor); circuit implementations, cells and architectures for integration including VLSI; testability, fault tolerant design, minimisation of circuits and CAD for VLSI; novel or improved electronic devices for both traditional and emerging technologies including nanoelectronics and MEMs, device and process characterisation, device parameter extraction schemes; mathematics of circuits and systems theory; test and measurement techniques involving electronic circuits, circuits for industrial applications, sensors and transducers.

Full Aims & Scope

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