Systems, methods, and apparatus for amplifying a voltage in wireless power transmitters are disclosed. In one aspect, the transmitter comprises a first circuit configured to generate a first signal. The first signal comprises a non-inverted output. The transmitter further comprises a second circuit configured to generate a second signal in phase with the first signal. The second signal comprises an inverted output with respect to the non-inverted output. The first circuit and the second circuit are further configured to drive a load.