A readout method which is suitable for high-density active microelectrode arrays used in electrophysiology experiments is presented. Amplitude modulation of consecutive channels enables simultaneous recording and transmission of the signals recorded on multiple electrodes, using a single amplifier. The physical limitation of the readout method is demonstrated to relate to the summation of the t...

This paper presents and implements a single-stage high-power-factor light-emitting diode (LED) driver with coupled inductors, suitable for streetlight applications. The presented LED driver integrates an interleaved buck-boost power factor correction (PFC) converter with coupled inductors and a half-bridge-type series-resonant converter cascaded with a full-bridge rectifier into a single-stage ...

In digital VLSI system the clock distribution network and flip flops are most power consuming components. The reduction of power consumption by clock distribution networks & flip flop makes the total VLSI system as low power VLSI system. In the earlier VLSI system design, different power consumption methods are followed to design the various flip-flops .The SABFF(sense amplifier based flip flop...

Introduction Precision instrumentation systems that measure physical properties using a photodiode or other current-output sensor often include a transimpedance amplifier (TIA) and a programmablegain stage to maximize dynamic range. This article uses a real-world example to show the benefits and challenges of implementing a single-stage programmable-gain TIA to minimize noise while maintaining ...

Optical amplifiers have made a great achievement and huge revolution in the world of optical communications, but some shortcomings must be occurs, for example, backward pump Raman amplifier suffers from decrease gain. The main objective this paper is to solve problem that occurs gain pumped amplifier. To problem, we design model two are used cascaded form overcome attenuation We present results...

A high-gain wide-bandwidth three-stage amplifier, which employs dual-miller compensation with nulling-resistor and dual-feedforward compensation (DMCNR-DFC), is designed and analyzed in this paper. By adopting the technique of DMCNR-DFC, the designed three-stage amplifier achieves well performance including gain-bandwidth product (GBW) and slew rate (SR). The improved DMCNR-DFC three-stage ampl...