Method and apparatus for controlling booster circuit and apparatus for extracting maximum power by using the same
AssigneesSamsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
InventorsJe-in Yu, Gyu-hyeong Cho, Kyu-sub Kwak, Hui-dong Gwon, June-hyeon Ahn, Young-sub Yuk
Life of this patent
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Abstract
Disclosed are a method and apparatus for controlling a booster circuit such that maximum power is extracted from a power supply while power consumption for monitoring power generated by the power supply is reduced, and an apparatus for extracting maximum power by using the method and apparatus for controlling a booster circuit.
Claims13
An apparatus for controlling a booster circuit which is connected to a power supply, the apparatus comprising:
- a detector that receives a first input voltage and generates a first output voltage related to power that is generated by the power supply;
- a comparing circuit that generates a second output voltage which determines a duty ratio of the booster circuit, and adjusts the generated second output voltage by comparing a first comparison voltage which is obtained by applying a duty ratio of a present booster circuit to the generated first output voltage, to a second comparison voltage which is obtained by applying a perturbation duty ratio with respect to the duty ratio of the present booster circuit to the generated first output voltage;
- and
- a pulse width modulator that adjusts the duty ratio of the booster circuit based on the adjusted second output voltage,
- wherein the detector generates the first output voltage by multiplying the first input voltage that is input to the booster circuit from the power supply by the duty ratio of the booster circuit.
A method of controlling a booster circuit which is connected to a power supply, the method comprising:
- receiving a first input voltage and generating a first output voltage related to power that is generated by the power supply;
- generating a second output voltage which determines a duty ratio of the booster circuit and adjusts the generated second output voltage by comparing a first comparison voltage which is obtained by applying a duty ratio of a present booster circuit to the generated first output voltage, to a second comparison voltage which is obtained by applying a perturbation duty ratio with respect to the duty ratio of the present booster circuit to the generated first output voltage;
- and
- adjusting the duty ratio of the booster circuit based on the adjusted second output voltage,
- wherein the detector generates the first output voltage by multiplying the first input voltage that is input to the booster circuit from the power supply by the duty ratio of the booster circuit.
An apparatus for extracting maximum power, the apparatus comprising:
- a power supply that generates power;
- a booster circuit that boosts voltage that is input from the power supply;
- and
- a controller that controls the booster circuit by adjusting a duty ratio of the booster circuit,
- wherein the controller determines the duty ratio of the booster circuit by comparing a first comparison voltage which is obtained by applying a duty ratio of a present booster circuit to a first output voltage that is generated in relation to power that is generated by the power supply, to a second comparison voltage which is obtained by applying a perturbation duty ratio with respect to the duty ratio of the present booster circuit to the generated first output voltage, generating a second output voltage as a result of the comparing, and adjusting the duty ratio of the booster circuit based on the second output voltage, and
- wherein the first output voltage is generated by multiplying the voltage that is input to the booster circuit from the power supply by the duty ratio of the booster circuit.
Dependencies are inferred from the claim text.