| 摘要 |
A load driving apparatus including a first driving unit, a second driving unit, and a circuit switch module is disclosed. The first and the second driving unit are respectively disposed at a first driving channel and a second driving channel and respectively output a first driving signal and a second driving signal for driving a first load and a second load during a channel output period. The circuit switch module is coupled between the first and the second driving channel and includes a plurality of signal transmitting paths. During a data loading period and a charge sharing period, the circuit switch module turns on all the signal transmitting paths, so that a charge sharing effect between the first load and the second load is achieved during the charge sharing period and accordingly the power consumption is reduced. Additionally, a load driving method of the load driving apparatus is disclosed. |
| 主权项 |
1. A load driving apparatus, comprising:
a first driving unit, disposed at a first driving channel, wherein during a channel output period, the first driving unit outputs a first driving signal to drive one of a first load and a second load; a second driving unit, disposed at a second driving channel, wherein during the channel output period, the second driving unit outputs a second driving signal to drive another one of the first load and the second load; and a circuit switch module, coupled between the first driving channel and the second driving channel, and comprising a plurality of signal transmitting paths, wherein during a data loading period and a charge sharing period, the circuit switch module turns on all the signal transmitting paths to achieve a charge sharing effect between the first load and the second load during the charge sharing period, wherein the circuit switch module comprises:
a first switch, disposed at a first signal transmitting path, wherein a first terminal of the first switch is coupled to the first driving unit, and a second terminal of the first switch is coupled to the first load;a second switch, disposed at a second signal transmitting path, wherein a first terminal of the second switch is coupled to the second driving unit, and a second terminal of the second switch is coupled to the second load;a third switch, disposed at a third signal transmitting path, wherein a first terminal of the third switch is coupled to the first driving unit, and a second terminal of the third switch is coupled to the second load;a fourth switch, disposed at a fourth signal transmitting path, wherein a first terminal of the fourth switch is coupled to the second driving unit, and a second terminal of the fourth switch is coupled to the first load; anda fifth switch, having a first terminal and a second terminal, wherein the first terminal of the fifth switch of the first driving channel is coupled to the first terminals of the first switch and the third switch, the second terminal of the fifth switch of the first driving channel is coupled to the first driving unit, the first terminal of the fifth switch of the second driving channel is coupled to the first terminals of the second switch and the fourth switch, and the second terminal of the fifth switch of the second driving channel is coupled to the second driving unit,wherein during the data loading period and the charge sharing period, the first switch, the second switch, the third switch, and the fourth switch are all turned on,wherein during the data loading period and the charge sharing period, the fifth switches are turned off, such that the first driving unit and the second driving unit are disconnected from the circuit switch module, and during the channel output period, the fifth switches are turned on. |
