Non Voltage Feedback Bluetooth Power Supply

Abstract

This paper introduces a voltage regulator circuit for various Bluetooth devices, designed to operate without voltage feedback. The circuit achieves a 5.1% error margin at a 5V(DC) output voltage and employs a minimal number of components, rendering it a practical solution. The results demonstrate a reduction in harmonic noise in the output voltage during operation. Measurement outcomes, featuring a comparison of harmonic signals, are presented using a digital storage oscilloscope (100MHz 2GSa/s).