Device and method for voltage regulator with low standby current
AssigneeSemiconductor Manufacturing International (Shanghai) Corporation
InventorWenzhe Luo
Life of this patent
Estimating the term…
Abstract
An apparatus and method for providing a reference voltage for regulating voltage levels. The apparatus includes a first voltage generation system configured to receive a first control signal and output a calibration voltage, a voltage adjustment system configured to receive the calibration voltage and a reference voltage and output a second control signal, and a second voltage generation system configured to receive the second control signal and output the reference voltage. The voltage adjustment system includes a latch system configured to receive a third control signal and a fourth control signal and output the first control signal.
Claims18
An apparatus for providing a reference voltage for regulating voltage levels, the apparatus comprising:
- a first voltage generation system configured to receive a first control signal and output a calibration voltage;
- a voltage adjustment system configured to receive the calibration voltage and a first reference voltage and output a second control signal;
- a second voltage generation system configured to receive the second control signal and output a second reference voltage;
- wherein the voltage adjustment system includes a latch system configured to receive a third control signal and a fourth control signal and output the first control signal;
- wherein the first control signal is associated with a first state if the third control signal is associated with a calibration and the fourth control signal is free from being associated with a completion of a voltage adjustment by the voltage adjustment system;
- wherein the first control signal is associated with a second state if the third control signal is free from being associated with the calibration or the fourth control signal is associated with the completion of the voltage adjustment by the voltage adjustment system;
- wherein the first state is associated with an active state of the first voltage generation system and the second state is associated with an inactive state of the first voltage generation system;
- wherein the voltage adjustment system is configured to process information associated with the calibration voltage and the first reference voltage and determine the second control signal based on at least information associated with the calibration voltage and the first reference voltage.
A method for providing a reference voltage for regulating voltage levels, the method comprising:
- providing a voltage adjustment system, the voltage adjustment system including a latch system;
- receiving a first control signal by the latch system;
- processing information associated with the first control signal;
- generating a second control signal based on at least information associated with the first control signal;
- if the second control signal is associated with an active state of a first voltage generation system coupled to the voltage adjustment system,
- activating the voltage adjustment system and the first voltage generation system;
- generating a calibration voltage in response to the second control signal;
- processing information associated with the calibration voltage and a first reference voltage;
- generating a third control signal based on at least information associated with the calibration voltage and the first reference voltage;
- generating a second reference voltage based on at least information associated with the third control signal;
- generating a fourth control signal associated with a completion of the calibration process;
- and
- deactivating the first voltage generation system and the voltage adjustment system.
Dependencies are inferred from the claim text.