Patent ID: 9323266
Filing Date: 2016-04-26
CPC Classification: G05F

Claim Text:
1. A linear regulator configured to derive an output voltage from an input voltage, the linear regulator comprising, an amplifier configured to derive an amplifier output signal from an amplifier input signal; a pass device configured to convert the amplifier output signal into the output voltage; a positive feedback loop configured to determine a positive feedback signal from the amplifier output signal, using a positive feedback gain γ; a negative feedback loop configured to determine a negative feedback signal from the output voltage, using a negative feedback gain β; and a combining unit configured to determine the amplifier input signal from the input voltage, from the positive feedback signal and from the negative feedback voltage; wherein a transfer function of the linear regulator exhibits a first and a second pole at a first frequency wp1 and at a second frequency wp2, respectively, wherein the differential amplifier comprises a differential pair comprising a first input transistor and a second input transistor; the first and second input transistors are arranged in series with a first and second load diode, respectively; the positive feedback loop comprises a first mirror transistor forming a current mirror with the first load diode and a second mirror transistor forming a current mirror with the second load diode; the first mirror transistor is arranged in series with the second input transistor; and the second mirror transistor is arranged in series with the first input transistor.