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US 11,309,797 B2Granted
Voltage regulation system and method thereof
AssigneeNuvoton Technology Corporation
InventorChung-Ming Hsieh
Life of this patent
Estimating the term…
Abstract
A voltage regulation system utilizes a controller to select one of a continuous comparator and a discrete comparator to operate, making one of the continuous comparator and the discrete comparator output a pulse signal to the controller. The controller controls a switched power stage circuit to supply power to a load element. Through the aforementioned configuration, the switched power stage circuit adjusts the power supply based on the condition of the load element, thus decreasing the power loss of the switched power stage circuit.
Claims12
A voltage regulation system, comprising:
- a switched power stage circuit configured to supply power to a load element, wherein a voltage on an output end of the switched power stage circuit is defined as an output voltage;
- a continuous comparator connected to the switched power stage circuit and configured to compare the output voltage and a reference voltage to output a pulse signal;
- a discrete comparator connected to the switched power stage circuit and configured to compare the output voltage and the reference voltage to output the pulse signal;
- a clock generator configured to output a clock signal to the discrete comparator, wherein the discrete comparator is operated based on the clock signal;
- and
- a controller connected between the discrete comparator and the switched power stage circuit and connected between the continuous comparator and the switched power stage circuit, wherein the controller controls the switched power stage circuit to supply power to the load element based on the pulse signal and selectively dynamically turns on one of the continuous comparator and the discrete comparator and turns off the other of the continuous comparator and the discrete comparator.
3 more elements
A voltage regulation method, comprising:
- providing a switched power stage circuit to supply power to a load element, wherein a voltage on an output end of the switched power stage circuit is defined as an output voltage;
- selectively turning on one of a continuous comparator and a discrete comparator by using a controller, to compare the output voltage and a reference voltage to output a pulse signal, wherein the discrete comparator is operated based on a clock signal;
- and
- controlling the switched power stage circuit to supply power to the load element based on the pulse signal.
1 more element
Dependencies are inferred from the claim text.