The Peripheral Circuitry

To make a complete space power supply, additional functional elements are commonly added to the basic DC/DC converter module functions.

On the power input side, these functions can include bus selection relays, transient suppression, input power fuses, input current limiters, inrush current limiters, reverse polarity protection, input undervoltage lockouts and additional EMI filtering and damping.

On the output side, these functions can include post filtering, post regulation, output cross strapping, output switching, output crowbars, output voltage monitoring and output decoupling capacitors.

Control and telemetry functions can include standby and inhibit control, fast shutdown for nuclear events, voltage telemetry, current telemetry, temperature telemetry, synchronization inputs and outputs. These additional circuit functions match the capabilities of the “bare bones” DC/DC converter modules to the requirements of the customer specifications.