Patent ID: 9618545
Date: 2017-04-11
CPC Classifications: G01R

Claim:
1. An electronic device comprising an energy tracking system, the energy tracking system including a buck block, at least one energy transfer block and a control circuit, wherein the control circuit is configured to control switching of energy in the at least one energy transfer block in order to transfer energy from a primary voltage applied at an input of the energy tracking system into a secondary voltage at the output of the energy tracking system; wherein the control circuit includes an ON-time and OFF-time generator, at least one control logic block and an accumulator, wherein the at least one control logic block is configured to receive a signal from the ON-time and OFF-time generator and to generate switching signals for the at least one energy transfer block in the form of constant-width ON-time pulses with a constant width ON-time, and wherein the accumulator is configured to collect the number of constant-width ON-time pulses for determining the consumed energy based on the number of constant-width ON-time pulses per time; wherein the buck block includes: wherein the at least one energy transfer block includes: