The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Efficient and smart techniques for analog data acquisition and processing may play crucial role in the design of miniature wearable devices, meant to continuously record, process and wirelessly transmit vital physiological parameters for real time health monitoring. In this work we propose a low-power, all-analog processing unit for an MPG (magneto-plethysmograph) based wearable device, which is meant...
In this paper, two low component count Voltage Mode (VM) and Current Mode (CM) higher order filters are proposed. The higher order filters are derived from second order filter module, which are realised by using Second Generation Current Conveyors (CCII). Both the filter modules have low component count and lower sensitivity figure. Apart from this, both the modules provide the feature of cascadability,...
This paper presents a new electronically tunable voltage-mode universal biquadratic filter with single input and four outputs employing seven operational transconductance amplifiers and two grounded capacitors. The use of grounded capacitor makes the circuit ideal for integrated circuit implementation. The proposed filter can realize voltage-mode low-pass, band-pass, high-pass and band-stop filter...
This paper presents a new tunable universal voltage-mode biquadratic filter with one-input five-output employing six operational transconductance amplifiers, one resistor and two grounded capacitors. The proposed circuit provides low-pass, band-pass, high-pass, band-stop, all-pass filters without changing circuit topology. The natural frequency can be electronically controlled. The filter also offers...
This paper reviews the technical evolution of one episode in the development of systems manufactured on printed circuit boards to systems realized on an IC (Integrated Circuit) chip. The replacement of LC filters by inductorless circuits is anything but trivial, and is the reason why the replacement of discrete-component LC filters by filters on a semiconductor chip took many decades to achieve. In...
The IEC 61967-2 TEM cell standard allows for variations in test parameters which may cause variations in the measured emissions from integrated circuits (ICs). To test the impact of these parameters, two printed circuit boards were designed within the IEC standard using ldquopoorrdquo PCB design strategies and using ldquogoodrdquo design strategies. Emissions from three pin-for-pin compatible 8051...
Class D amplifiers are becoming the most feasible solution for embedded audio application. However, distortions due to the non-linear nature of switching stage are the main drawback for this amplifier topology. This paper discusses the design and implementation of high fidelity audio class D using sliding mode control scheme. This design method proves to be a cost effective solution for industrial...
A high intercept points, cost-effective, and power-efficient switching FET double balanced mixer (DBM) is reported. The Switching FET DBM demonstrated in this work offers input intercept points (IIP3) and conversion loss typically 44 dBm and 8.5 dB respectively with 15 dBm LO power for the frequency band (RF: 900-2150 MHz, LO: 850-1950 MHz, IF: 50-200 MHz). The measured interport isolation is typically...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.