Patent ID: 7746331
Filing Date: 2010-06-29
Classification: G09G

Abstract:
1. An source-follower type analogue buffer, comprising: a storage capacitor, wherein a first terminal of the storage capacitor is connected to an operation voltage source through a first switch, a second terminal of the storage capacitor is connected to an input voltage source through a third switch; a driving transistor, wherein a gate terminal of the driving transistor is connected to the first terminal of the storage capacitor, a drain terminal of the driving transistor is connected to the operation voltage source, a source terminal of the driving transistor is connected to the second terminal of the storage capacitor through a second switch; and an active load, wherein a first terminal of the active load is connected to the source terminal of the driving transistor, and a second terminal of the active load is connected to the ground, the active load is controlled by a bias voltage.