Voltage converting system and method of using the same
AssigneeFuturewei Technologies, Inc.
InventorHeping DAI
Life of this patent
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Abstract
Aspects of the disclosure provide a voltage converting system. The voltage converting system includes a first power converter configured to convert an input voltage to an intermediate voltage, a second power converter configured to convert the intermediate voltage to an output voltage at a target voltage level, and a control circuit coupled to the first power converter and the second power converter. The control circuit is configured to, upon detection of the input voltage having a voltage level that is within a first range, perform a close-loop control of the second power converter to output the output voltage at the target voltage level.
Claims23
A voltage converting system, comprising:
- a first power converter configured to convert an input voltage to an intermediate voltage;
- a second power converter configured to convert the intermediate voltage to an output voltage at a target voltage level;
- and
- a control circuit coupled to the first power converter and the second power converter that is configured to:
- upon detection of the input voltage having a voltage level that is within a first range, perform a close-loop control of the second power converter to output the output voltage at the target voltage level.
A method, comprising:
- driving a first power converter of the voltage converting system to convert an input voltage to an intermediate voltage;
- and
- driving a second power converter of the voltage converting system to convert the intermediate voltage to an output voltage at a target voltage level based on a voltage level of the input voltage, including:
- upon detection of the voltage level of the input voltage being within a first range, performing a close-loop control of the second power converter to output the output voltage at the target voltage level.
A voltage converting system, comprising:
- a first power converter configured to convert an input voltage to an intermediate voltage;
- a first controller configured to drive the first power converter;
- a second power converter configured to convert the intermediate voltage to an output voltage at a target voltage level;
- a second controller configured to drive the second power converter;
- a voltage detector configured to detect a voltage level of the input voltage;
- and
- a mode controller configured to:
- upon detection of the voltage level of the input voltage being within a first range, instruct the first controller to perform an open-loop control of the first power converter and instruct the second controller to perform a close-loop control of the second power converter.
Dependencies are inferred from the claim text.