Patent ID: 11906597
Assignee: NOVA SEMICONDUCTOR, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A system for determining battery cell voltages from a set of batteries connected in series, comprising:
a plurality of first voltage controlled oscillators, each first voltage controlled oscillator configured to:
receive a voltage value from a battery cell of a plurality of battery cells of the set of batteries; and
convert the voltage value into an oscillating output signal;

a plurality of digital level shifters, each digital level shifter configured to:
receive the oscillating output signal from one of the plurality of first voltage controlled oscillators; and
convert the oscillating output signal to a digital oscillating output signal; and

digital circuitry configured to:
receive the digital oscillating output signal from each of the plurality of digital level shifters; and

calculate a voltage level from each battery cell of the plurality of battery cells based on the digital oscillating output signal, wherein the digital circuitry includes:
a plurality of counters for receiving the digital oscillating output signals; and
logic circuitry for calculating the voltage level based on count values from the plurality of counters and known electrical output values of the plurality of voltage controlled oscillators.