Tracking energy consumption using a buck-boosting technique

A circuit device comprising:

• a first energy transfer block that includes:
• first and second inputs configured to couple to a power supply;
• first and second outputs, wherein the second input of the first energy transfer block is coupled to the second output of the first energy transfer block;
• a first inductor that includes a first terminal and a second terminal, wherein the second terminal is coupled to the first output of the first energy transfer block;
• a first switch coupled between the first input of the first energy transfer block and the first terminal of the first inductor;
• a second switch coupled between the second input of the first energy transfer block and the first terminal of the first inductor;
• and
• a capacitor coupled between the second terminal of the first inductor and the second input of the first energy transfer block;
• a set of energy transfer blocks coupled to the first energy transfer block that each include:
• third and fourth inputs, wherein the third input is coupled to the first output of the first energy transfer block and wherein the fourth input is coupled to the second output of the first energy transfer block;
• third and fourth outputs configured to couple to a load;
• a second inductor that includes a third terminal and a fourth terminal, wherein the third terminal is coupled to the third input;
• a third switch coupled between the fourth terminal of the second inductor and the fourth input;
• a fourth switch coupled between the fourth terminal of the second inductor and the fourth output;
• and
• a diode coupled between the fourth terminal of the second inductor and the fourth output;
• and
• a controller coupled to the first energy transfer block and the set of energy transfer blocks.