Patent ID: 7313006
Filing Date: 2007-12-25
Classification: H02M,H05B,Y02B

Abstract:
1. A power conversion circuit comprising: a switching network comprising at least a high-side switch and a low-side switch configured to selectively couple a source voltage to an output node, wherein the high-side switch is a P-type transistor coupled between the source voltage and the output node; a level-shifter coupled to a control terminal of the high-side switch, wherein the level-shifter is configured to change a voltage reference of a driving signal provided by a controller output to control the high-side switch; and an electronic circuit coupled between the controller output and the level-shifter, wherein the electronic circuit comprises a semiconductor switch and prevents shoot-through current by closing the semiconductor switch to couple the controller output to the level-shifter when the driving signal at the controller output has a first logic level and opening the semiconductor switch to isolate the controller output from the level-shifter when the driving signal at the controller output has a second logic level.