Highly efficient class-d amplifier

An source follower gate drive circuit with an output power source follower switching stage, comprising:

• a dual charge pump;
• a first transistor and a second transistor, where the first transistor and the second transistor are complementary pair;
• and
• a third transistor and a fourth transistor, where the third transistor and fourth transistor are in a totem pole source follower configuration and the dual charge pump controls the voltage to the dual charge pump that alternatively activates either the first transistor or the second transistor in response to an input signal.