Abstract: Photoplethysmography (PPG) monitoring can provide vital signs like heart rate (HR), heart rate variability (HRV), and blood oxygen saturation $\left(\mathrm{SpO}_{2}\right)$ non-invasively.
Abstract: A comparison between two-phase and three-phase interlaced DC converter with parallel MOSFET is presented. PWM is evaluated using a two-way DC-DC converter to charge and discharge a battery.
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