Patent ID: 8860461
Filing Date: 2014-10-14
Classification: H03K

Abstract:
1. A voltage level shifter for translating a binary input signal representing a binary sequence to a binary output signal representing the same binary sequence, the voltage level shifter comprising: an input port for receiving the binary input signal as an input voltage varying between a first input voltage level and a second input voltage level; a node; an output port connected to the node, for outputting the binary output signal as an output voltage varying between a first output voltage level and a second output voltage level; a supply voltage node connectable to a voltage supply, for providing the second output voltage level; a first switch arranged to couple the supply voltage node to the node and to decouple the supply voltage node from the node based on a voltage at the node; a feedback voltage loop connected to the node for providing a feedback voltage based on the voltage at the node; and a second switch connected to the feedback voltage loop and arranged to couple the input port to the node based on a trigger voltage, the trigger voltage being one selected from a group consisting of: the voltage at the input port minus the feedback voltage, and the feedback voltage minus the voltage at the input port.