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A fully integrated THz phase-locked loop (PLL) is proposed. It is consists of a fundamental PLL and a frequency doubler. In order to improve the oscillation frequency and reduced the phase noise, a feedback network composed of buffer amplifiers and capacitors is introduced to the voltage-controlled oscillator (VCO). The wide locking-range divider chain of PLL consists of an injection-locked frequency...
This letter presents a high sensitivity oscillator-based magneto-sensitive biosensor. To suppress the environmental variations, e.g., voltage vibration, temperature drift, and lower the noise floor, an in-situ switched capacitor (ISSC) based calibration scheme is proposed with little cost on on-chip area and complexity. As an implementation example, a biosensor cell is designed in a standard 180-nm...
To meet the requirement of continuous reactive power compensation with low cost, high reliability and large capacity, a hybrid dynamic reactive power compensation system was proposed based on TSC (thyristor switched capacitor in parallel) and SVG (static var compensator). This system consisting of discrete subsystem TSC and continuous subsystem SVG, coordinated the capacitor switching rating of TSC...
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