Power supply for controlled parallel charging and discharging of batteries

A method for controlling the amount of charge delivered from a battery to a load, comprising:

• comparing a voltage across the load with a desired operating voltage and generating a comparison output;
• and
• generating one or more control signals for controlling the rate at which a power switch transfers charge between the battery and the load responsive to the comparison output;
• wherein generating one or more control signals comprises generating one or more control signals that increase the rate at which the power switch transfers charge between the battery and the load responsive to a comparison output indicating that the voltage across the load exceeds the desired operating voltage;
• and generating one or more control signals that decrease the rate at which the power switch transfers charge between the battery and the load responsive to a comparison output indicating that the voltage across the load is less than the desired operating voltage.

A device, comprising:

• an application circuit;
• a power supply;
• and
• a switch coupled between the power supply and the application circuit;
• and;
• a power control circuit coupled to the application circuit and the switch, the power control circuit comprising:
• a comparator that compares a voltage utilized by the application circuit with a desired operating voltage;
• a control module that generates one or more control signals for controlling the rate at which the switch transfers charge between the power supply and the application circuit responsive to an output from the comparator;
• wherein the control module generates one or more control signals that increase the rate at which the switch transfers charge between the power supply and the application circuit responsive to receiving an output from the comparator indicating that the voltage utilized by the application circuit exceeds the desired operating voltage and,
• wherein the control module generates one or more control signals that decrease the rate at which the switch transfers charge between the power supply and the application circuit responsive to receiving an output from the comparator indicating that the voltage utilized by the application circuit is less than the desired operating voltage.