Low power low voltage level shifter

A voltage level shifter comprising:

• an inverter having a first output terminal and a first input terminal for receiving a first oscillating signal;
• and
• a switching circuit having a second output terminal, a second input terminal connected to the first output terminal, and a third input terminal for receiving a second oscillating signal, the second oscillating signal being out of phase with the first oscillating signal, the switching circuit for shifting the second oscillating signal between a first voltage level and a second voltage level at the second output terminal based on the second oscillating signal and the voltage level at the second input terminal, the voltage level at the second input terminal controlling the switching time of the second oscillating signal shifting between the first voltage level and the second voltage level.

A voltage level shifter comprising:

• a first switching circuit having a first input terminal for receiving a first oscillating signal and a first output terminal, the first switching circuit including a first switch and a second switch connected in series with each other, each having a control terminal coupled to the first oscillating signal, the first switching circuit for switching the first oscillating signal between a first voltage level and a second voltage level at the first output terminal;
• and
• a second switching circuit having a second input terminal connected to the first output terminal, a second output terminal, and a third input terminal for receiving a second oscillating signal, the second oscillating signal being out of phase with the first oscillating signal, the second switching circuit for switching the second oscillating signal between a third voltage level and a fourth voltage level at the second output terminal based on the second oscillating signal and the switched voltage levels at the first output terminal.

A voltage level shifter comprising:

• a first switching circuit having a first input terminal for receiving a first oscillating signal and a first output terminal, the first switching circuit for switching the first oscillating signal between a first voltage level and a second voltage level at the first output terminal;
• and
• a second switching circuit having a second input terminal connected to the first output terminal, a second output terminal, and a third input terminal for receiving a second oscillating signal, the second oscillating signal being out of phase with the first oscillating signal, the second switching circuit including a first transistor and a second transistor connected in series with the first transistor, the node between the two transistors defining the second output terminal, wherein the control terminals of the first and second transistors are connected to the first output terminal, the second switching circuit for switching the second oscillating signal between a third voltage level and a fourth voltage level at the second output terminal based on the second oscillating signal and the switched voltage levels at the first output terminal.

A voltage level shifter comprising:

• an inverter having a first output terminal and a first input terminal for receiving a first oscillating signal;
• and
• a switching circuit having a second output terminal, a second input terminal connected to the first output terminal, and a third input terminal for receiving a second oscillating signal, the second oscillating signal being out of phase with the first oscillating signal, the switching circuit including a first transistor and a second transistor connected in series with the first transistor and defining the second output terminal there between wherein the gate terminals of the first and second transistors are connected to the first output terminal, the switching circuit for shifting the second oscillating signal between a first voltage level and a second voltage level at the second output terminal based on the second oscillating signal and the voltage level at the first output terminal.