DAC (Digital to Analog Converter) is the enabling inverse technology of ADC that generates analog output proportionate to given digital input. In most of the control and digital processing system requires the DAC for meddlesome with real world. But most of the digital controlling microprocessor and microcontroller don’t have an on chip DAC integrated peripheral architecture. For such implementi...

In this paper, a 9-bit 1GS/s high precision folding A/D converter with a 45 nm CMOS technology is proposed. In order to improve the asymmetrical boundary condition error of a conventional folding ADC, a novel scheme with an odd number of folding blocks is proposed. Further, a new digital encoding technique is described to implement the odd number of folding technique. The proposed ADC employs a...

One of the most efficient lighting technology is based on light-emitting diodes (LEDs). Common LED drivers with AC-input (50-60Hz) usually require a bulk electrolytic capacitor to decrease low-frequency ripple in the output. However, the critical element that limits the lifespan of the LED driver is the electrolytic capacitor. An isolated off-line LED driver is proposed in this paper, in which ...

Health technology assessment (HTA) is an evaluative process used to inform technology-related policymaking in healthcare. Interest in involving patients in the HTA process is increasing. Patients can provide additional perspectives to those of other groups that are concerned with health technology. Information on patients’ perspectives is preferably obtained through reviews of published studies...