United Microelectronics Corp.

Chai-Wei Fu

Ya-Nan Mou

Yuan-Hui Chen

Yung-Hsiang Lin

Cheng-Hsiao Lai

Hsueh-Chen Cheng

Ying-Ting Lin

A voltage regulating circuit provides a feedback voltage and an output voltage based on a power voltage. The voltage regulating circuit includes a reference voltage generator and a compensating circuit. The reference voltage generator receives the power voltage, produces the feedback voltage, and includes an impedance having first and second terminals. The second terminal is coupled to a ground voltage and a first current flows through the impedance at the first terminal to produce the feedback voltage. The compensating circuit includes a negative threshold voltage (NVT) transistor having a source terminal, a drain terminal and a gate terminal. The source terminal receives a power voltage, the drain terminal is connected to the gate terminal and coupled to the first terminal of the impedance through a path to add a second current to the first current when the NVT transistor is turned on under an operational condition at the FF corner.

Growing community of inventors

Chiayi, Taiwan

Chai-Wei Fu