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This work addresses an all digitally-controlled oscillator (DCO) design with three newly proposed hysteresis delay cells (HDC). According to circuit topologies, the three HDCs are defined as on-off, cascaded, and nested HDCs that provide different propagation delay. These HDCs comprise architecture, a power-of-two delay stage DCO (P2DCO), that every delay stage provides half delay than the previous...
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...
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