Modular Devices Inc
About Modular Devices Inc
MDI's product lines include:
Complicated discrete limiting circuits can be replaced with MDI's Hybrid Inrush Limiters. Inrush limiters are sized to all popular satellite bus voltages and harmonised with MDI Proton Rad Hard 100K+® Hybrid DC-DC Converters whether used singly or in multiples. Models *3635 are available with logic level and Model *3646 with traditional mag latch control inputs.
Power Bus Controllers
Control and selection of dual redundant input power buses is now possible with MDI's Model *3649 "Bus Master". Simplify satellite system electrical design by combining the features of a solid state relay, inrush current limiter and turn-on sequencer to provide all the features above plus user selection of redundant satellite power buses via logic command.
Point of Load DC-DC Regulators
Compact radiation-hardened, non-isolated, synchronous switching point of load (POL) buck regulators put power conversion exactly where it's needed: directly on-board, right at the load. Available in two inputs (12 VDC and 5 VDC) and two power levels, any variety of output voltages can be achieved to run system loads economically, efficiently and without any extra parts. Perfect for FPGAs.
Solid State Relays
MDI Hybrid Solid State Relays offer a user-programmable output ramp to whatever requirements are demanded, and can be commanded with either 3.3 V or 5 V CMOS level signals. Large internal FET heat sinks integrate the thermal turn-on pulse for low-stress operation. This line is magnetically isolated, 100K+® Proton Rad Hard and uses no optoelectronics.
Active Diode “OR”
MDI's 53653 Active Diode "OR" offers satellite and space vehicle designers the inherent higher reliability of redundant power sources with the advantages of a rad-hard, compact, board or chassis mount, very low forward volt drop, high efficiency steering device.
MIL-STD-1275D Ruggedised DC-DC Converters
The 3656 series of DC-DC Converter is designed for deployment in military vehicle electronics systems. They are compliant with CE101 and CE102 without any external filters, designed and built tough for high shock and vibe applications and feature rad tolerant, SEU resistant circuits.