
Navy Relay
LIT used its patented MOSFET switching technology to develop an all electronic
relay replacement for the Navy’s obsolete and problematic N-130 electromechanical
relay. LIT’s efforts exceeded requirements by providing working prototypes
at the end of the Phase I feasibility study. Based on the results of the
Phase I work, LIT was asked to submit a proposal to develop the electronic
relay into a product that the Navy could use as a direct replacement for
their obsolete relay. LIT took the Phase I design and refined it such that
the electronic relay could serve as a form, fit and function replacement
for the relay it would replace.
LIT designed custom printed circuit boards for the electronic relay which
allowed it to fit within the same envelope and footprint as the obsolete
relay while at the same time allowing the relay to be of a modular design.
The modular design allows the LIT relay to be configurable and reconfigurable
depending on the number and type of contacts needed. The LIT relay can be
configured with combinations of normally open and normally closed contacts
as desired by the customer.
The LIT relay was designed to allow for infinite pick up and drop out voltage
settings, each independent of one another. LIT also designed the control
card portion of the relay such that it can operate based on voltage or frequency.
The control card can also be configured as a pulse width modulation controller
(PWM).
Upon completion of the Phase II relay design, LIT began the process of qualifying
the relay to meet the stringent requirements for use on Navy ships.
