| 摘要 |
A power controller having externally adjustable duty cycle provides an inversely proportional relationship between duty cycle and input voltage and creates a conversion curve associated with the duty cycle and the input voltage. The slope and/or maximal duty cycle of the conversion curve can be dynamically adjusted through an external setting interface according to the specification of the magnetic components adopted in a power conversion circuit. Therefore, saturation of magnetic components is effectively prevented, and magnetic components with optimal specification are easily available to choose.
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