Low drop real-time-clock battery voltage control circuit for application specific integrated circuit in an engine control module

US11579651B2 · kind B2 · utility

Assignee

• Cummins Inc. · US

Inventors

• Abhik Giri · Bengaluru, IN
• Mark Swain · Columbus, US
• Ashish R. Jain · Glen Allen, US
• Ming Feng · Cupertino, US
• Astha Ganjoo · Pune, IN
• Shreya Ghatge · Dhamtari, IN

Key dates

• Filing date: Nov 15, 2021
• Grant date: Feb 14, 2023
• Expiry date: Nov 15, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G05F1/46
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Systems and apparatuses include a circuit structured to communicate with a real-time-clock battery and to selectively communicate with a vehicle battery, inhibit communication between the real-time-clock battery and a controller when a first voltage is received from the vehicle battery, and provide a communication from the real-time-clock battery to the controller when the first voltage is not received.