DRS Pivotal Power's EPS-RL provides conditioned power to supply critical electronic systems in military land applications. Using power conforming to QSTAG 307, the EPS-RL provides conditined 28 VDC output power.
Power conditioning is achieved by filtering of electromagnetic emissions and current and voltage limiting. The EPS-RL also provides high quality low power multiple output rails to supply typical digital, analog and telephone circuitry.
The power circuit design is mainly based on soft-switch-mode technology using intelligent MOSFET power modules. The use of high frequency pulse-width modulation provides excellent DC output voltage regulation with low line and load transients, high conversion efficiency and high power density. The electromagnetic interference (EMI) profile of the power circuit is kept low by adopting soft-switching techniques and using a degree of linear conversion. The circuit of the EPS-RL is hardened against the effects of transient radiation effects on electronics (TREE). The construction of the EPS is modular with plug-in printed wiring boards and easily replaceable subassemblies.
The EPS has been developed as an embedded subsystem of the Information System segment of the Iris Radio System and the Bowman Radio System being used by the Canadian and UK military.