Methods and apparatus for a low standby current DC-DC power controller with improved transient response
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United States of America Patent
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Nov 7, 2017
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app pub date -
Dec 29, 2015
filing date -
Dec 29, 2015
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Abstract
Methods and apparatus for DC-DC power controller with low standby current and fast transient response. In an example arrangement, an apparatus includes a voltage converter outputting a direct current output voltage, configured to increase the output voltage responsive to an enable control signal; at least one feedback comparator configured to output a first control signal, the feedback comparator being active responsive to an edge at a clock signal input; an adjustable frequency oscillator for outputting a first clock signal; and a fast transient detect circuit configured to output a second signal asynchronously upon detecting a rapid change greater than a voltage threshold in the output voltage; the voltage converter receiving the enable control signal when either the first clock signal is active, or the second signal is active and the output voltage is less than a reference voltage. Additional apparatus and methods are disclosed.
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