UNIVERSAL POWER HARNESSING MECHANISM FOR DEBOUNCING OF BUTTON, HOST CHARGING AND WIRELESS TRANSMISSION

摘要

A piezoelectric element is placed under the button hence so that when the button is pressed the element generates energy. This energy is instantly processed and stored in a capacitor. While the button starts moving to back to its initial (non-pressed) state, the capacitor no longer is being charged and starts discharging to power ON the microcontroller unit (MCU) within few micro seconds. Microcontroller unit (MCU) checks the combination of input ports set to OFF as each button is wired to different set of input ports while the button is just a few micrometers above the contact and already completed with the process of bouncing.This setup ensures no power being needed to judge the button press while effectively removing the bouncing issue also making the device (keyboard, buttons etc.) not only bouncing free but also self-generative.