Resources Contact Us Home
Circuit card present sense and protective power supply inhibit for airborne application of ATM switch unit

Image Number 2 for United States Patent #5796185.

A system on an aircraft that eliminates hot-swapping of circuit boards to prevent damage to the circuit board connector interfaces. The system supplies power to a circuit card only when there is an effective coupling between a circuit card connector and an opposite mating connector. A power control circuit responds to a card present signal which indicates when the circuit card connector is coupled to the opposite mating connector. A logic circuit converts the card present signal to a power supply enable signal. A main power supply receives the power supply enable signal and provides power to the circuit card only when the circuit card connector and the opposite mating connector are appropriately coupled.

  Recently Added Patents
Method of providing tailor-made software for hospital departments
Washing-up bowl
Method and system for advertisement using internet browser to insert advertisements
Plasma doping method and plasma doping apparatus
Policy based cryptographic application programming interface in secure memory
Method of treating lung cancer
Image processing apparatus, image processing method, and program
  Randomly Featured Patents
Method for simultaneous identification of differentially expresses mRNAs and measurement of relative concentrations
Aqueous cleaning of liquid residue by etching
Fire resistant electronic engine controller
System for efficiently interfacing with display data intersystem
Tool for bending rebar
Method and system for controlling a power inverter in electric drives
Carbon-nanotube based opto-electric device
Molecular fluorescence sensor for highly sensitive and selective detection of mercury
Safety protective cover of a blender