| 摘要 |
A switching power amplification circuit of the present invention comprises a pulse width adjustment block for generating a conditioned output signal according to a digital input signal, a pulse width of the conditioned output signal being controlled by a voltage level of a pulse width control signal; a switching power amplification block for performing a switching power amplification on the conditioned output signal to generate a digital output signal group; and a control signal generation block for generating the pulse width control signal according to the digital input signal and the digital output signal group, wherein the control signal generation block controls the pulse width control signal to a voltage level for making the pulse width of the digital output signal group in accordance with the digital input signal. The switching power amplification circuit according to the present invention provides a digital output signal group that is amplified for a digital input signal, while suffering minimal modification in the pulse width. |
