Conventional di/dt and dv/dt control gate protection techniques for gallium nitride (GaN) power transistors usually employ external controllers, isolation circuits, discrete pull-up, pull-down resistors. With large number of components, modules become more complex may introduce additional parasitic. Gate driver ICs with segmented output stages dynamic driving have been reported previously to be effective in simultaneously suppressing ringing overshoot voltage while maintaining fast switching...

This paper presents a step-by-step system identification approach to estimate the parameters of three-phase salient-pole synchronous machine rated at 5 kVA from online small disturbance responses. The equivalent circuit model linear and nonlinear saturated are estimated. estimation is performed using maximum likelihood algorithm. Simulation studies based on measured large dynamic disturbances validate accuracy identified including saturation.< <ETX...

The grayscale resolution of liquid crystal displays (LCDs) can be improved by modulating the pixels in LCDs or dimming LCD backlight source. Changing voltage turned-on time a pixel to achieve high-resolution requires either an accurate digital-to-analog converter very high frequency pulsewidth modulation (PWM) signal, which increases hardware cost and power consumption. fast transient response light-emitting diodes (LEDs) makes them useful as source for improving without additional overhead....

As developments of modern societies, an on-field and personalized diagnosis has become important for disease prevention proper treatment. To address this need, in work, a polysilicon nanowire (poly-Si NW) based biosensor system-on-chip (bio-SSoC) is designed fabricated by 0.35 μm 2-Poly-4-Metal (2P4M) complementary metal-oxide-semiconductor (CMOS) process provided commercialized semiconductor foundry. Because the advantages CMOS (SoC) technologies, poly-Si NW integrated with chopper...

This paper presents a highly-integrated DNA detection SoC, where several kinds of cantilever sensors, readout circuit, an MCU, voltage regulators, and wireless transceiver, are integrated monolithically in 0.35 μm CMOS Bio-MEMS process. The cantilever-based biosensors with embedded piezoresistors aim to transduce hybridization into resistance variation without cumbersome labeling To improve sensitivity for low concentration use, oscillator-based self-calibrated circuit high precision is...

A novel approach to the dynamic analysis of induction machines with saturable inductances is presented. The machine dynamics are represented by a set nonlinear time-varying differential equations. parameters (i.e. inductances) modeled closed-form functions. equations which define operation d and q equivalent circuits. circuits simulated using IGSPICE software package.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This paper describes the design, fabrication and characterization of a complementary metal-oxide-semiconductor (CMOS) micro-electro-mechanical-system (MEMS) accelerometer implemented in 0.18 µm multi-project wafer (MPW) CMOS MEMS process. In addition to standard process, an additional aluminum layer thick photoresist masking are employed achieve etching microstructural release. The structural thickness is up 9 minimum spacing 2.3 µm. out-of-plane deflection resulted from vertical stress...

Liver cancer postoperative pathologic examination of stained tissues is an important step in identifying prognostic factors for follow-up care. Traditionally, liver detection would be performed by pathologists with observing the entire biological tissue, resulting heavy work loading and potential misjudgment. Accordingly, studies automatic pathological have been popular a long period time. Most approaches existing detection, however, only extract cell level information based on single-scale...

In this paper, a new 1 V rail-to-rail comparator is presented with low noise, high speed and power consumption. We utilize current mirrors to overcome the kickback noise. A adaptive control (APC) technique also proposed minimize dissipation of comparator. Moreover, it provides an optimized stable irrelative process bias variation. prototype IV SAR ADC for biomedical application has been implemented in 0.18 μm TSMC CMOS technology. It consumes 2.86 μW at 250kS/s figure merit 85.7...

The current accuracy and power efficiency of a boost white light-emitting-diode (WLED) driver are usually design tradeoffs since the is inversely proportional to reference voltage, whereas voltage. Traditionally, WLED with high demand large chip area because mismatch decreases increasing size. This paper proposes an offset calibration technique improve both while keeping relatively small. An overvoltage protection (OVP) circuit overcurrent (OCP) prevent proposed from being damaged due...

This paper presents a digital trimming technique for canceling the output offsets caused by sensor mismatches in an accelerometer design. The offset cancellation techniques provide fine steps with higher chip area efficiency compared that of conventional capacitor array compensation approaches. accelerometer, fabricated 0.18- μm complementary metal-oxide-semiconductor micro-electro-mechanical-system process, containing micro-mechanical structure and readout circuits, occupies only 0.64 × 0.9...

This paper presents a direct maximum-likelihood estimation procedure to identify the synchronous machine models based on standstill frequency response (SSFR) test data. The method presented in this study is first and only algorithm utilizing all available SSFR data under both shorted open field circuit conditions establish unique equivalent model by maximizing conditional probability density function of error residuals. applied modeling two well-known generators, namely Rockport Nanticoke...

This paper presents a high frame rate linear scan CMOS image sensor (CIS) with time-delay integration (TDI) technique and interlaced super-resolution (ISR) pixel to increase signal-to-noise ratio (SNR) horizontal resolution. An adjacent signal transfer (APST) methodology is adopted for efficient wire routing reducing complexity. 4T-APS applied in achieve the snapshot function. A 128×8×2 array pitch of 6×6 um <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...

The switching transient of SiC power MOSFETs are often affected by the gate voltage (V <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">GATE</inf> ) swings due to fast charging/discharging their capacitances. Using a resistance (R xmlns:xlink="http://www.w3.org/1999/xlink">G</inf> can effectively limit influx current but reduces speed transistor. Both factors be improved using dynamic driving scheme with varying R . optimum timings pattern...

This paper presents a new approach to model synchronous generator saturation based on feedforward artificial neural network (ANN) model. The machine loading conditions, excitation levels and rotor positions are all included in the modeling process. nonlinear characteristics of three-phase salient-pole rated at 5 kVA 240 V is studied using ANN An appropriate selection input/output pattern for training an error back-propagation scheme developed on-line small-disturbance responses well-known...

Cantilever sensors have been extensively explored as a promising technique for real-time and label-free analyses in biological systems. A major sensing principle utilized by state-of-the-art cantilever is based on analyte-induced surface stress changes, which result static bending of cantilever. The sensor performance, however, suffers from the intrinsically small change induced analytes, especially molecular recognition such antigen-antibody binding. Through contact angle tailored solid...

This paper presents a systematic approach for identification of three-phase salient-pole synchronous machine rated at 5 kVA from standstill time-domain data. Machine time constant models and the equivalent circuit are identified their parameters estimated. The initialization estimated is achieved by Laplace transformation recorded time-response data derivation well-known operational inductances. estimation performed using Maximum Likelihood algorithm. Based on best models, simulation studies...