All three functionalities of the Patient Vital Signs Monitor use the same external peripherals like LCD, keypad and power sources
. The only variables are the transducer sections. In all three functions, the signal chain is emulated inside the chip and software calculations for signal processing runs in the PSoC's microcontroller. Thus, using one PSoC and some peripherals, all three functionalities are implemented in one device. This design approach reduces components which also reduces noise induction and power consumption. It also allows for fast and easy changes, even late in the design cycle.
Medical Electronics Drive Move to Home Care
By: Pavitra Ramanujam And Shamik Mehta, Cypress Semiconductor Corp.