Systems and methods for controlling amplification of a pair of pulse width
modulated signals. In one embodiment, a system comprises an audio
amplifier which is configured to receive a pulse code modulated (PCM)
input signal, convert this signal to a pulse width modulated (PWM) signal
in a controller, and amplify the PWM signal in an output stage. The
controller separates the PWM signal into a high-side signal and a
low-side signal. The controller incorporates digitally programmable
delays into the processing paths for each of the high-side and low-side
signals. The high-side and low-side signals are separately provided to
the output stage. The separate high-side and low-side signals can be used
to individually control (e.g., turn off) the high-side and low-side
transistors. Circuitry is included to generate a short low-side pulse
when both transistors are turned off in order to drain the gate charge
from the high-side transistor.