Capacitive Sensing and Terminal CPU Solutions in Mobile Phones (1) 6

Although the use of insulation layer may cause a decrease in overall sensitivity, it provides an innovative approach for mobile phone manufacturers. Manufacturers can hide two-dimensional sensors behind various colorful plastic films. The surface of this plastic film is silk screened with alphanumeric patterns that provide basic mobile phone functions, and then a rolling strip is silk screened along the periphery of the plastic film to achieve advanced functions. The same capacitive touchpad with various plastic films can achieve multiple CPUI functions.  diode

The capacitive sensing function can also be combined with other standard mobile phone functions to reduce phone costs. The PSoC mixed signal array using CapSense technology is designed to provide this flexibility. PSoC can drive the white LED embedded in the mobile phone display screen, and even charge the internal mobile phone battery. The functions that were previously handled by separate microcontrollers can now be integrated into a single PSoC.

For today's mid-range mobile phone manufacturers, capacitive sensing technology has strong advantages. The capacitive sensing CPUI not only improves the industrial design of mobile phones, but also provides innovative solutions for the increasing demand in the consumer market. The PSoC hybrid signal array using CapSense technology by Cypress is the key to achieving high-performance and cost-effective capacitive sensing solutions.  diode