Patent ID: 7973564

Claim:
A high load driving device, which is connected with a load, comprising an inverter receiving a digital voltage, reversing said digital voltage into a reversed digital voltage, and outputting said reversed digital voltage; a first capacitor having a first electrode and a second electrode, where said first electrode is connected with an output terminal of said inverter; a P-type push-up field-effect transistor (FET) connected with a high voltage and said load; a first P-type FET connected with an input terminal of said inverter and said high voltage, receiving said digital voltage, and switching a conduction state thereof according to said digital voltage; a first N-type FET connected with said first P-type FET and said input terminal of said inverter, receiving said digital voltage, and switching a conduction state thereof according to said digital voltage; a second N-type FET connected with said first P-type FET, said first N-type FET, said second electrode and a low voltage, and switching a conduction state thereof according to a conduction state of said first P-type FET; a second P-type FET connected with said high voltage, said input terminal of said inverter and said P-type push-up FET, receiving said digital voltage, and switching a conduction state thereof according to said digital voltage; and a third N-type FET connected with said first N-type FET, said second N-type FET, said second electrode, said second P-type FET, said P-type push-up FET and said input terminal of said inverter, receiving said digital voltage, switching a conduction state thereof according to said digital voltage, and using an original first voltage drop of said first capacitor to control a gate voltage of said P-type push-up FET to be at a low stabilization voltage that is lower than said low voltage to drive said load to operate fast when said digital voltage rises from a low level to a high level.