CIRCUIT STRUCTURE ENABLING UPGRADED MOS TRANSISTOR HEAT DISSIPATION ABILITY

摘要

A circuit structure applied to a motor and enabling upgraded MOS transistor heat dissipation ability is disclosed. The circuit structure includes a motor driving unit and a signal processing unit. The signal processing unit is connected to the motor driving unit for maintaining a first and a third switch of the motor driving unit at a constant turn-on voltage and boosting turn-on voltages of a second and a fourth switch of the motor driving unit, so as to effectively upgrade the heat dissipation ability of the first, second, third and fourth switches.

主权项

1. A circuit structure enabling upgraded MOS transistor heat dissipation ability and applied to a motor, comprising:
a motor driving unit including a first switch, a second switch, a third switch and a fourth switch, which respectively have a first terminal end, a second terminal end and a third terminal end; the first and the third switch being connected at their third ends to the third ends of the second and the fourth switch, respectively; and the first and the second switch being connected at their second ends to the second ends of the third and the fourth switch, respectively; and a signal processing unit including:
a first voltage stabilizer having an end connected to the first end of the first switch and another end connected to the second end of the first switch and an input voltage for stabilizing a voltage between the first end and the second end of the first switch;a second voltage stabilizer having an end connected to the first end of the third switch and another end connected to the second end of the third switch and the input voltage for stabilizing a voltage between the first end and the second end of the third switch;a first booster connected to the first end of the second switch for boosting a received first signal and outputting the boosted first signal to the first end of the second switch; anda second booster connected to the first end of the fourth switch for boosting a received second signal and outputting the boosted second signal to the first end of the fourth switch.