| 摘要 |
<p>A switched mode, high linearity power amplifier can include a dynamic quantizer, a pulse width modulator and an output driver. In one embodiment, the dynamic quantizer can include a sigma- delta modulator configured to provide a multi-level digital signal. The pulse width modulator can receive the multi-level digital signal and provide a variable pulse width signal based, at least in part, on the multi-level digital signal. The output driver can include a class D output driver. The output driver can receive the variable pulse width signal to operate the class D output driver and provide an amplified signal. In one embodiment, the output driver can adjust the amplified signal to compensate for output errors.</p> |
