Patent ID: 7902870
Filing Date: 2011-03-08
Classification: H03K

Abstract:
1. A boost circuit for increasing a speed of a transition between voltage levels in a level shifter, the level shifter configured to shift from a first voltage level supply to a second voltage level supply the boost circuit comprising: a first boost pull-up transistor; a second boost pull-up transistor in communication with the first boost pull-up transistor and the second voltage level supply; and a boost biasing transistor in communication with the second voltage level supply, the boost biasing transistor configured to bias a gate of the first boost pull-up transistor towards the second voltage level supply causing the first boost pull-up transistor to pull-up an output signal of the level shifter during a voltage shifting period of the level shifter, wherein the boost biasing transistor is directly biased by the output signal of the level shifter.