Recovered energy logic circuits

A logic circuit comprising:

• a power supply which applies a single alternating voltage to a plurality of successive logic stages;
• and
• said plurality of successive logic stages, the logic stages switching states in synchronization with the supply such that changing voltage levels within the logic stages closely follow changes in voltage of the supply to reduce energy losses due to voltage changes across capacitances in the logic circuit.

A logic circuit comprising:

• a plurality of successive logic stages;
• and
• a power supply which applies a common alternating voltage to the plurality of successive logic stages, said plurality of successive logic stages being alternately activated by the alternating voltage in logical processing of respective inputs, the power supply storing energy recovered from the logic stages and returning most of the recovered energy to the logic stages.

A logic circuit comprising:

• a power supply which applies a common alternating voltage to a plurality of successive logic stages;
• and
• said plurality of successive logic stages, the successive logic stages being alternately activated by the power supply in logical processing of respective inputs during respective rising and falling portions of the power supply waveform, the successive logic stages switching states in synchronization with the supply such that changes in voltage levels within the logic stages closely follow changes in voltage of the supply to reduce capacitive charging and discharging energy loss in the logic circuit, successive stages being of switchable semiconductor devices of opposite conductivity types, each logic stage being precharged during the portions of the power supply during which the logic stage is not active in logical processing.