Digitally controlled flexible electronic power conditioner for SSPA

In this paper, the design methodology and implementation of a digitally controlled, synchronous gate driven and flexible Electronic Power Conditioner (EPC) have been discussed. With incorporation of an FPGA (Field Programmable Gate Array) as its controller, forward topology with active clamp Zero Voltage Switching (ZVS) Technique and synchronous rectification, this dc-dc converter offers flexibility in its output load voltages. Furthermore, each of the output is being sensed and corrected individually through the digital controller in the form of the FPGA. The converter has been designed to cater to the 15W C-band Solid State Power Amplifier (SSPA) at the transmitting section of communication payloads in satellites. These SSPAs have a nominal input power requirement of 45W though the converter has been designed to deliver output power in the range of 20W to 60W.