This paper studies a particular single-stage power-factor-correction (PFC) switching regulator employing a discontinuous-conduction-mode (DCM) boost-input cell and a continuous-current-mode (CCM) forward output cell. Although this single-stage PFC regulator can provide a reasonably high power factor when its PFC stage is operating in discontinuous mode, substantial reduction in line-current har...

A CMOS Current/Voltage mode winner-take-all circuit (WTA) with spatial filtering for image processing applications is presented. This WTA circuit has a unique ability of spatial filtering that allows removal of the background from the image and is suitable for integration with CMOS Active Pixel Sensors. In this circuit, image intensity has been chosen for the input saliency map. The removal pro...

With the rapid scaling down of CMOS manufacturing technology, the reduction in leakage power has become an important concern in low voltage, low power and high performance applications. In this paper a novel circuit design technique is presented which minimizes sub-threshold leakage current by zeroing drain-source voltage. This results in a reduction of leakage power consumption in sleep mode e...

In this paper, a new current mode true RMS-to-DC converter circuit using second generation current conveyors (CCII) is presented. The second generation current conveyor employs MOSFET transistors that are operating in strong inverted saturation region. The proposed methodology provides the following advantages: a complete current-mode circuit makes it suitable for current-mode signal processing...

In this study, an electronically tunable resistorless dual-mode quadrature sinusoidal oscillator, based on current controlled current conveyor transconductance amplifier (CCCCTA) and two grounded capacitors is presented. The proposed resistorless oscillator employs a single CCCCTA and two grounded capacitors and thus is well suited for integrated circuit implementation. The proposed circuit is ...

A set of hybrid microstrip patch and semi-circular cavity antennas is introduced. The semi-circular cavity is implemented using Half-mode Substrate Integrated Waveguide (HMSIW) technique. Different shapes of patch include rectangular, semi-circular and equilateral triangular are excited using proximity effect by the circular SIW cavity at its TM010 mode of operation. The whole structures have b...

This communication describes the design of a microelectronic BiCMOS analog circuit, intended to be applied to the sliding-mode control of switching DC-DC power converters for the application of generating a sinusoidal signal with externally adjustable amplitude, frequency and offset. The circuit implements a sliding law over a nonlinear autonomous switching surface. The proposal of this analog ...

In the semiconductor manufacturing industry recently remarkable technological developments like, feasibility of millions of transistors and various other components to be integrated on a Chip with enormous packaging options than it is tested by BIST. The role of the BIST circuit is to reduce the cost by reducing the testing interval and the complexity of testing. The power dissipated in a circu...

A single-stage LED driver based on interleaved buck-boost circuit and LLC resonant converter is proposed. The buck-boost circuit and LLC resonant converter are integrated by sharing switches, which can decrease the system cost and improve system efficiency. The input voltage of the buck-boost circuit is half of the rectified voltage, and two buckboost circuits are formed with the two half-bridg...

We demonstrate a novel on-chip two-mode division multiplexing circuit using a tapered directional coupler-based TE(0)&TE(1) mode multiplexer and demultiplexer on the silicon-on-insulator platform. A low insertion loss (0.3 dB), low mode crosstalk (< -16 dB), wide bandwidth (~100 nm), and large fabrication tolerance (20 nm) are measured. An on-chip mode multiplexing experiment is carried out on ...