LLC type galvanic isolated resonant converter
Abstract
Resonant converters are often being used for high power and high voltage applications to achieve high efficiency, high power density and low EMI. In this paper, we will use a resonant converter for a completely different application. We will take advantage of the Zero Voltage Switching (ZVS) and operating in the vicinity of the series resonance to design a low power and ultra-low noise galvanic isolated half bridge resonant DC-DC converter for powering a medical amplifier. Under lower power we consider up to 6W (500mA @ 12V). The DC-DC converter must meet the safety requirements of the standard IEC 60601.
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