GaN semiconductor based voltage conversion device
AssigneeVelox Semiconductor Corporation
InventorsBryan S. Shelton, Boris Peres, Daniel McGlynn
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Abstract
A converter is provided having an AC input and a DC output. The converter includes a rectifier that receives the AC input and that provides a rectifier output, a series connected current to magnetic field energy storage device and current interrupter connected across the rectifier output and a series connected gallium nitride diode and output charge storage device connected between a midpoint of the series connected magnetic field energy storage device and current interrupter and a terminal of the rectifier output and wherein the converter is characterized in not needing a transient voltage suppression circuit.
Claims20
A converter having an AC input and a DC output, said converter comprising:
- a rectifier that receives the AC input and that provides a rectifier output;
- a series connected current to magnetic field energy storage device and current interrupter connected across the rectifier output;
- and
- a series connected gallium nitride diode and output charge storage device connected between a midpoint of the series connected magnetic field energy storage device and current interrupter and a terminal of the rectifier output and wherein the converter is characterized in not needing a transient voltage suppression circuit since said diode is selected to substantially eliminate ringing otherwise occurring in the circuit.
A converter embedded within a power supply comprising:
- a gallium nitride diode that receives a varying input voltage from a power source of the power supply and that rectifies the varying input voltage to provide a relatively constant output voltage;
- and
- a capacitor that filters the relatively constant output voltage connected directly to and in series with the gallium nitride diode, said series connected gallium nitride diode and capacitor being coupled across the varying input voltage and the relatively constant output voltage being provided across the capacitor and wherein the gallium nitride diode has a forward voltage drop of less than three volts, a reverse breakdown voltage of greater than 500 volts and a current capacity in excess of four amperes since said diode is selected to substantially eliminate ringing otherwise occurring in the circuit.
A converter having a DC input and a DC output, said converter comprising:
- a series connected inductor and switch connected across a set of terminals of the DC input;
- and
- a series connected gallium nitride diode and output capacitor connected to a set of opposing terminals of the switch and wherein the converter is characterized in not needing or having a transient voltage suppression circuit since said diode is selected to substantially eliminate ringing otherwise occurring in the circuit.
Dependencies are inferred from the claim text.