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CIRCUIT AND METHOD FOR CONVERTING AND COMBINING TWO ANALOG SIGNALS INTO ONE PULSE WIDTH MODULATED OUTPUT

IP.com Disclosure Number: IPCOM000008019D
Original Publication Date: 1997-Mar-01
Included in the Prior Art Database: 2002-May-13

Publishing Venue

Motorola

Related People

Authors:
Eric Jacobsen Paul Nehrbass

Abstract

This application describes the conversion of two analog sensor signals into one pulse width modulat- ed signal. The application describes generating and processing the pulse width modulated signal using a microcontroller's input capture and output compare timer channels. This design contains the following components: a pressure sensor, a temperature sen- sor, a saw tooth wave generator, two comparators, an exclusive OR function, and a microcontroller with input capture and output compare timer chan- nels.