| 摘要 |
<p>A control unit (103)that performs various types of control in accordance with input information selects,from data table information, target voltage information and target dead time information corresponding to input voice signal level information and outputs the target voltage information to a variable power source unit (104);and the output power source voltage and the dead time are setin a half bridge circuit (107)in accordance with the input voice signal level,by outputtingthe target dead time information associated with this target voltage informationto a dead time generating unit (105).Consequently, a class D amplification device can be provided wherein distortion can be reduced by minimising the dead time, while the amount of heat generated by the passage of current can be suppressed.</p> |
