Hybrid power convertor and control method thereof
First Claim
1. A method of controlling a hybrid power convertor, comprising:
- providing a voltage to make the hybrid power convertor generate an output voltage;
determining a rated voltage based on the output voltage; and
performing an initial voltage determining step, comprising;
when the voltage is greater than the output voltage, entering a buck mode; and
when the voltage is not greater than the output voltage, entering a boost mode,wherein the buck mode alternatively performs a switching conversion mode or a linear regulation mode, and the boost mode alternatively performs a linear-like regulation mode or a boost conversion mode.
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Accused Products
Abstract
A hybrid power convertor includes an input to receive an input voltage, an output to export an output voltage, a control module, a switching module, a buck module and a boost module. The control module has a first comparison terminal coupled to the input, a second comparison terminal coupled to the output, a mode-control terminal, a boost-control terminal and a buck-control terminal. The switching module is coupled to the input and the mode-control terminal, and has a buck input terminal and a boost input terminal. The buck module is coupled to the buck input terminal, the buck-control terminal and the output terminal, and the buck module is able to perform a switching convertor mode and a linear regulator mode. The boost module is coupled to the boost input terminal, the boost-control terminal and output terminal, and the boost module is able to perform a boost convertor mode and a linear-like regulator mode.
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Citations
23 Claims
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1. A method of controlling a hybrid power convertor, comprising:
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providing a voltage to make the hybrid power convertor generate an output voltage; determining a rated voltage based on the output voltage; and performing an initial voltage determining step, comprising; when the voltage is greater than the output voltage, entering a buck mode; and when the voltage is not greater than the output voltage, entering a boost mode, wherein the buck mode alternatively performs a switching conversion mode or a linear regulation mode, and the boost mode alternatively performs a linear-like regulation mode or a boost conversion mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hybrid power convertor, comprising:
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an input terminal receiving an input voltage; an output terminal exporting an output voltage; a control module having a first comparison terminal coupled to the input terminal, a second comparison terminal coupled to the output terminal, a mode-control terminal, a boost-control terminal and a buck-control terminal; a switching module coupled to the input terminal and the mode-control terminal, and having a buck input terminal and a boost input terminal; a buck module coupled to the buck input terminal, the buck-control terminal and the output terminal, and capable of performing a switching conversion mode or a linear regulation mode alternatively; and a boost module coupled to the boost input terminal, the boost-control terminal and the output terminal, and capable of performing a boost conversion mode or a linear-like regulation mode alternatively, wherein when the input voltage is greater than the output voltage, the control module makes the switching module conductive to the buck module; and
when the input voltage is not greater than the output voltage, the control module makes the switching module conductive to the boost module. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification