Aims: The work aims to implement a soft switched high frequency ac link universal
power converter controlled BLDC motor for medical applications. The universal power converter
is an ac link converter, with the parallel combination of an inductor and a capacitor which offers
improved power factor, low power consumption and more efficiency.
Materials and Methods: SVPWM technique is utilized as a control technique for the proposed
converter. AC link converter controlled with PDM technique requires an additional control procedure
or an algorithm for regulating the output power of the PDM converters. SVPWM technique
was adopted to turn ON and OFF the input and output switches in sequence to get the regulated
power at the output.
Result and Conclusion: These types of inverters could be used in medical field as an alternate to
conventional inverters during power shut downs. The inverter proposed in this work has both the
capability to step up and step down the input voltage based on the load requirements. The soft
switched AC link inverter may be incorporated in a variety of applications including medial applications,
industrial needs, renewable energy resources, variable frequency drives and electric and