Patent ID: 7548107
Filing Date: 2009-06-16
Classification: H03K

Abstract:
1. A voltage output device for an electronic system, for transforming an input voltage for generating an output voltage for a load, the voltage output device comprising: a first node; a second node; a third node; a first transistor comprising a first terminal coupled to the input voltage, a second terminal, and a third terminal coupled to the first node; a second transistor comprising a first terminal coupled to the first node, a second terminal coupled to the second node, and a third terminal coupled to a ground terminal; a first driving unit comprising a power input terminal coupled to the third node, a ground terminal coupled to the first node, an input terminal, and an output terminal coupled to the second terminal of the first transistor; a second driving unit comprising a power input terminal coupled to a driving voltage, a ground terminal coupled to the ground terminal, an input terminal, and an output terminal coupled to the second node; a control unit coupled to the input terminal of the first driving unit and the input terminal of the second driving unit, for outputting a first control signal to the input terminal of the first driving unit and a second control signal to the input terminal of the second driving unit; a diode comprising an input terminal coupled to the ground terminal, and an output terminal coupled to the first node; an inductor comprising one terminal coupled to the first node and another terminal coupled to the load; a first capacitor comprising one terminal coupled to the load and another terminal coupled to the ground terminal; and a boost circuit comprising: