Efficiency improved voltage converter
First Claim
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1. An efficiency improved voltage converter comprising:
- a boost converter connected between a supply voltage and a first output for boosting up said supply voltage to generate a first output voltage at said first output;
a buck converter connected between said supply voltage and a second output for bucking down said supply voltage to generate a second output voltage at said second output; and
an LDO voltage regulator connected between said first output and said second output for converting said first output voltage to a third output voltage at said second output when said second output voltage is lower than a threshold.
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Abstract
A voltage converter improves the efficiency thereof by connecting a boost converter and an LDO regulator with a buck converter in parallel. The boost converter boosts up a supply voltage to generate a first output voltage at a first output, and the buck converter bucks down the supply voltage to generate a second output voltage at a second output. When the second output voltage is lower than a threshold, the LDO regulator converts the first output voltage to a third voltage at said second output.
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3 Claims
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1. An efficiency improved voltage converter comprising:
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a boost converter connected between a supply voltage and a first output for boosting up said supply voltage to generate a first output voltage at said first output;
a buck converter connected between said supply voltage and a second output for bucking down said supply voltage to generate a second output voltage at said second output; and
an LDO voltage regulator connected between said first output and said second output for converting said first output voltage to a third output voltage at said second output when said second output voltage is lower than a threshold. - View Dependent Claims (2, 3)
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Specification