专利名称:Startup circuit for self-supplied voltage
regulator
发明人:Achim Stellberger,Frank Schwiderski申请号:US12924124申请日:20100921公开号:US08400124B2公开日:20130319
专利附图:
摘要:A startup circuit for starting up a self-supplied voltage regulator which initiatesstartup by applying a voltage from a voltage supply to the startup circuit thus causing avoltage at an output node to rise. This rise will start the operation of the differential
amplifier of the voltage regulator. When the voltage at the output node has reached thedesired final output voltage, the startup circuit disconnects from the voltage regulator.The criterion for switching off the startup circuit is determined by a comparator whichcompares the output current capability of the voltage regulator with its output currentplus the startup current. Inputs to the differential amplifier, such as the referencevoltage, derive their power from the output node.
申请人:Achim Stellberger,Frank Schwiderski
地址:Kronau DE,Endingen DE
国籍:DE,DE
代理机构:Saile Ackerman LLC
代理人:Stephen B. Ackerman
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