Charge pump circuit with improved discharge and corresponding discharge method

A charge pump circuit has a plurality of charge pump stages cascaded to one another between an input terminal and an output terminal to provide an output voltage having a boosted value with respect to the input voltage. A clock generator is configured to generate a clock signal provided to the charg...

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Bibliographic Details
Main Authors de Santis, Fabio, Livornesi, Dario
Format Patent
LanguageEnglish
Published 08.12.2020
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Summary:A charge pump circuit has a plurality of charge pump stages cascaded to one another between an input terminal and an output terminal to provide an output voltage having a boosted value with respect to the input voltage. A clock generator is configured to generate a clock signal provided to the charge pump stages to perform the boosting of the input voltage. An output-voltage regulation feedback closed-loop is coupled to the clock generator to perform a regulation of the output voltage based on a feedback voltage. A discharge control stage is configured to control a discharge of the charge pump circuit by generating a first discharge control signal configured to disable the output-voltage regulation feedback closed-loop or a second discharge control signal configured to reduce the frequency of the clock signal.
Bibliography:Application Number: US201916677387