Current-controlled voltage regulation

An integrated circuit is disclosed for current-controlled voltage regulation. In an example aspect, the integrated circuit includes a voltage regulator and a current-controlled clamp. The voltage regulator has a regulator output node and produces a regulator current. The voltage regulator includes a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Guan, Hua, Li, Kan, Ho, Ngai Yeung, Zou, Xiaodan, Yung, Chi Fan
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:An integrated circuit is disclosed for current-controlled voltage regulation. In an example aspect, the integrated circuit includes a voltage regulator and a current-controlled clamp. The voltage regulator has a regulator output node and produces a regulator current. The voltage regulator includes an error amplifier and an output transistor. The error amplifier has first and second input nodes and an error amplifier output node, with the first input node coupled to a reference voltage. The error amplifier generates an error amplifier output voltage at the output node. The output transistor is coupled between the error amplifier output node and the regulator output node. The output transistor is coupled to the second input node via the regulator output node to establish a feedback path for the voltage regulator. The current-controlled clamp is coupled to the error amplifier output node and clamps the error amplifier output voltage based on the regulator current.