Thanks   to   our   significant   experience   with   the   environmental   requirements   typical   of   aerospace and   railway   applications,   we   have   matured   the   technical   expertise   needed   for   the   design   of custom   controllers   for   harsh   environments.   Decades   of   experience   in   electronic   engineering give   us   the   optimal   expertise   to   cover   all   the   phases   required   for   the   development   of   new products: design, prototyping, testing, certification, manufacturing (by qualified sub-contractors).
Merging    a    strong    Applied    Physics background       with       decades       of experience       in       High       Reliability Electronics    Design    to    benefit    the development    of    new    products    for rugged   Industrial,   Rail   Transit,   and Aerospace applications.
At ease with harsh environments
Our Expertise
Rugged Electronics for Rail Transit Safety
  Some of our successfully completed projects include: electronic brake controllers for railway vehicles applications controllers for spacecraft's on-board energy conditioning and power bus voltage regulation custom electronic controllers for industrial automation applications self-compensating   Hall   effect   absolute   angular   encoder   for   rotary   mechanisms   used   in spacecrafts or in rugged terrestrial applications (railway, oil & gas) credit   card   size   authentication   token   capable   of   reading   a   challenge   code   from   a   flashing pattern displayed on a PC monitor
C-Sigma   was   founded   in   1997   by   Luca   Ghislanzoni,   an   industrial   physicist,   when   leaving   the   European   Space   Agency.   During   the 10   years   spent   with   ESA,   he   specialized   in   high   reliability   electronic   controllers   for   mission   critical   functions,   such   as   the   Electrical Power   Bus   Voltage   Regulation   function   of   the   on-board   Energy   Conversion   and   Conditioning   System.   For   such   applications   a   failure could   mean   the   loss   of   the   complete   spacecraft.   Thus,   critical   units   (e.g.   Battery   Discharge   Regulators,   built   out   of   many   identical, parallel   operating,   hot   redundant   modules)   are   controlled   by   3   fully   independent   controllers,   whose   respective   output   signals   are then   “2   out   of   3   majority   voted”   by   means   of   a   voter,   effectively   achieving   SIL4   for   the   availability   of   power   to   all   other   sub-systems and   payloads.   Said   voter   must   be   designed   very   carefully   (design   validated   by   Worst   Case Analysys,   Failure   Mode   Effects Analysis,   and   last,   but not   least,   Extensive Testing),   in   order   to   ensure   proper   operation   even   in   case   of   a   component   failure   (Single   Point   Failure Tolerant   Design).   More in   general,   achieving   High   Reliability   is   a   difficult   and   multi-faceted   task,   painstakingly   built   out   of   bullet-proof   procedures,   deep   and   careful analyses,   independent   experts   assessments,   lot   of   patience,   and   …   test,   test,   test,   and   retest   …   Finally,   after   so   many   years   in   this   industry,   here is   my   personal   advice:   never   forget   to   give   Reliability   a   KISS   (Keep   It   Simple   Stupid   …   an   old   adage   suggests),   as   starting   with   a   simple   as feasible subsystem approach goes a long way towards achieving Product Reliability and Safety.                                                                                                                                                                                                      C-Sigma s.r.l.   2015
Rugged Design for Space