Power switch monitor to improve switching time
AssigneeModicon, Inc.
InventorMichael D. Salcone
Life of this patent
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Abstract
The present invention provides an improved device for minimizing the time delays associated with turning on and off the power switches or power transistors in a standard totem pole configuration. An improved saturation detector monitors each transistor to determine when it is in saturation and generates a feedback signal which is combined with the input signal to generate the appropriate time delay needed to improve the switching time of the transistor.
Claims6
In a switching circuit comprising first and second transistors electrically connected to an input signal in a totem pole configuration, first and second drivers electrically connected to said first and second transistors, respectively, for driving same, first and second shunt diodes electrically connected across said first and second transistors, respectively, a power supply and a load, the improvement in combination therewith comprising a saturation detector connected to each of said first and second transistors for monitoring the saturation state of the respective transistor and generating a feedback signal which is combined with said input signal to improve the switching time of the transistors.
Dependencies are inferred from the claim text.