Power control apparatus and method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorDong-Han Kim
Life of this patent
Estimating the term…
Abstract
A power control apparatus including an active block in which power is always maintained in an on state and an N number of power management units having a hierarchical structure where N is a natural number greater than or equal to 1. Each of the power management units controls power of at least one power domain block Power of a first power management unit of the N number of the power management units is controlled by the active block, and power of an Nth power management unit of the N number of the power management units is controlled by an (N-1)th power management unit.
Claims14
A power control apparatus comprising:
- an active block in which power is maintained in a power-on state;
- and
- an N number of power management units having a hierarchical structure where N is a natural number greater than or equal to 1,
- wherein each of the power management units controls power of at least one power domain block, power of a first power management unit of the N number of the power management units is controlled by the active block, and power of an Nth power management unit of the N number of the power management units is controlled by an (N-1)th power management unit.
A portable terminal comprising:
- a power control apparatus comprising:
- an active block in which power is maintained in a power-on state;
- and
- an N number of power management units having a hierarchical structure where N is a natural number greater than or equal to 1,
- wherein each of the power management units controls power of at least one power domain block, power of a first power management unit of the N number of the power management units is controlled by the active block, and power of an Nth power management unit of the N number of the power management units is controlled by an (N-1)th power management unit;
- and
- a CPU receiving power controlled by the power control apparatus.
A method of controlling a power control apparatus with N number of power management units having a hierarchical structure where N is a natural number greater than 1, the method comprising:
- an active block in which power is always maintained in an power-on state waking-up a first power management unit to wake-up at least one first power domain block controlled by the first power management unit;
- and
- the first power management unit waking-up a second power management unit to wake-up at least one second power domain block.
A method of controlling a power control apparatus with N number of power management units having a hierarchical structure where N is a natural number greater than 3, the method comprising:
- an Nth power management unit outputting a first power-off signal to an (N-1)th power management unit when at least one Nth power domain block controlled by the Nth power management unit is all powered-off;
- and
- receiving the first power-off signal, and the (N-1)th power management unit outputting a second power-off signal to an (N-2)th power management unit when an (N-1)th power control domain block is all powered-off.
Dependencies are inferred from the claim text.