Power Booting Sequence Control System and Control Method Thereof

A method of controlling a power booting sequence, being used to optimize a power booting sequence of a plurality of power switches in an integrated circuit, comprising steps of:

• providing an initial module for initializing a target charge value, a preset current budget, and a plurality of time intervals;
• providing a current lookup module for obtaining a different voltage value by subtracting an estimate voltage value from a supply voltage value, and obtaining a booting current of each the power switch from a built-in current lookup table;
• providing a first computing unit for computing a first power switch number of each the power switch opened in sequence based on the every time interval;
• providing a second computing unit for computing an opened second power switch number based on the booting current in the every time interval if being less than the preset current budget;
• and
• providing a processing module for selecting a small number of the first and the second power switch numbers to get a maximum number of power booting switch in the every time interval if being less than the preset current budget, and opening the maximum number of the power booting switch.

A power booting sequence control system, being used to optimize a power booting sequence of a plurality of power switches in an integrated circuit, comprising:

• an initial module initializing a target charge value, a preset current budget, and a restriction power switch cluster size;
• a current lookup module obtaining a different voltage value by subtracting an estimate voltage value from a supply voltage value, and obtaining a booting current of each the power switch from a built-in current lookup table based on the different voltage value;
• a computing unit connecting with the initial module and the current lookup module, and computing a flexible time interval based on the booting current and the restriction power switch cluster size if being less than the preset current budget;
• and
• a processing module connecting with the initial module, the current lookup module, and the computing unit, the processing module opening the restriction power switch cluster size and stopping opening any of the power switches in the flexible time interval.

A method of controlling a power booting sequence, being used to optimize a power booting sequence of a plurality of power switches in an integrated circuit, comprising steps of:

• providing an initial module for initializing a target charge value, a preset current budget, and a restriction power switch cluster size;
• providing a current lookup module for obtaining a different voltage value by subtracting an estimate voltage value from a supply voltage value, and obtaining a booting current of each the power switch from a built-in current lookup table based on the different voltage value;
• providing a computing unit for computing a flexible time interval based on the booting current and the restriction power switch cluster size if being less than the preset current budget;
• and
• providing a processing module for opening the restriction power switch cluster size and stopping opening any of the power switches in the flexible time interval.