A SILENCING TECHNIQUE FOR NUISANCE ALARMS IN SMOKE DETECTORS
Original Publication Date: 1988-Oct-01
Included in the Prior Art Database: 2001-Nov-01
The evolution of low power, CMOS It's for use with smoke detector ionization chambers has allowed this technology combination to dominate this cost-sensitive, consumer market for over ten years. By strobing the detector's power-consuming analog circuits at a very low duty cycle, these It's achieve over one year of opera- tion from an inexpensive nine volt battery.