Space borne forward converter with discrete LDO to power OCXO

The object of paper is to design & development of consistent, robust space grade power supply for space application of OCXO & launch vehicle with wide input voltage range. The nominal input voltage of space application is 28V DC bus. The end use of power supply will be for supplying various OCXO. The Satellite is using power supply unit (PSU) which provides single output. This converter is designed with Forward Converter Topology & discrete LDO is used to meet the required specifications. The power supply has been designed by Voltage mode with the feed forward control method has been implemented to offer superior CS101 performance. This converter delivers the output of 9W for the input voltage of 24V-36V at a switching frequency of 150 kHz.