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High-efficiency DC/DC voltage converter including down inductive switching pre-regulator and capacitive switching post-converter
High-efficiency DC/DC voltage converter including down inductive switching pre-regulator and capacitive switching post-converter
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机译:高效的DC / DC电压转换器,包括降压电感式开关预调节器和电容式开关后置转换器
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摘要
A DC/DC converter includes a pre-regulator stage, which may include a Buck converter, and a post-converter stage, which may include a charge pump. The duty factor of the pre-regulator stage is controlled by a feedback path that extends from the output terminal of the pre-regulator stage or the post-converter stage. The pre-regulator steps the input DC voltage down by a variable amount depending on the duty factor, and the post-converter steps the voltage at the output of the pre-regulator up or down by an positive or negative integral or fractional value. The converter overcomes the problems of noise glitches, poor regulation, and instability, even near unity input-to-output voltage conversion ratios.
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