A novel smart resistive-capacitive angular PSD is presented. The main advantages of this low-cost system are its high stability and high reliability. A very linear oscillator is used in the processing circuit to conve...
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A novel smart resistive-capacitive angular PSD is presented. The main advantages of this low-cost system are its high stability and high reliability. A very linear oscillator is used in the processing circuit to convert the position quantity to a period-modulated signal which can directly be read out by a microcontroller. The system does not need an A/D converter. The nonlinearity of the smart PSD system is less than /spl plusmn/0.3% (/spl plusmn/0.9/spl deg/) over the range of 270/spl deg/.< >
We describe a low-voltage low-power CMOS nerve signal analogprocessing circuit for biomedical applications. It is dedicated to an implantable bladder controller. After amplifying the nerve signal with low-noise high-...
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ISBN:
(纸本)0780365429
We describe a low-voltage low-power CMOS nerve signal analogprocessing circuit for biomedical applications. It is dedicated to an implantable bladder controller. After amplifying the nerve signal with low-noise high-CMRR instrumentation amplifier, it is rectified and bin-integrated (RBI) with a low-power CMOS analogprocessing circuit. This circuit is based on switched capacitor technique. Using techniques to reduce operational amplifier requirements ensures low-power consumption. The circuit has been designed in CMOS 0.35 /spl mu/m technology. The simulation results of the main parts of the proposed analog circuit are presented. At a supply voltage of 2.2 V the power dissipation is 700 /spl mu/W.
This work describes the architecture of a reconfigurable VLSI device which can be programmed to perform a wide range of analog signal processing functions. The device is to be constructed using a standard, single-well...
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This work describes the architecture of a reconfigurable VLSI device which can be programmed to perform a wide range of analog signal processing functions. The device is to be constructed using a standard, single-well, CMOS process with the facility for construction of linear, parallel plate capacitors. The device operates in continuous time and therefore requires no sampling clock. It implements both linear and non-linear transfer functions over a useful bandwidth of approximately 100 kHz.
This paper presents an open-loop compensation method in order to improve a commercial current sensor, based on the anisotropic magnetoresistive effect, for applications requiring high bandwidth current measurement. A ...
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This paper presents an open-loop compensation method in order to improve a commercial current sensor, based on the anisotropic magnetoresistive effect, for applications requiring high bandwidth current measurement. A simple passive differential filter is proposed to extend the open-loop AC transfer characteristic of AMR sensor. The sensitivity and bandwidth of the overall system are discussed by a transfer function analysis. Instrumentation setup and hardware prototype has been developed, and significant test results are shown.
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