Transformer resonant converter
AssigneeEagle Harbor Technologies, Inc.
InventorsKenneth E. Miller, James R. Prager, Timothy M. Ziemba, John G. Carscadden, Ilia Slobodov, Alex Patrick Henson
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Abstract
Some embodiments may include a nanosecond pulser comprising a plurality of solid state switches; a transformer having a stray inductance, Ls, a stray capacitance, Cs, and a turn ratio n; and a resistor with a resistance, R, in series between the transformer and the switches. In some embodiments, the resonant circuit produces a Q factor according to Q = 1 R L s C s ; and the nanosecond pulser produces an output voltage Vout from an input voltage Vin, according to Vout=QnVin.
Claims26
A resonant converter circuit comprising:
- a DC input providing an input voltage Vin;
- a plurality of solid state switches electrically coupled with the DC input;
- a transformer comprising:
- a transformer core,
- a primary side comprising a conductive sheet wrapped at least around a portion of the transformer core, the conductive sheet electrically coupled with the plurality of solid state switches;
- a secondary side comprising a plurality of secondary windings wrapped at least around a portion of the transformer core,
- a stray inductance, Ls,
- a stray capacitance, Cs, and
- a turn ratio, n;
- a resistor with a resistance, R, disposed in series between the conductive sheet of the transformer and the plurality of solid state switches;
- a plurality of rectifier diodes coupled with the plurality of secondary windings;
- and
- a circuit output coupled with the plurality of rectifier diodes;
- wherein the resonant converter circuit produces a Q factor according to
- Q
- =
- 1
- R
-
- L
- s
- C
- s
- ;
- and
- wherein the resonant converter circuit produces output pulses at the circuit output with an output voltage Vout from the input voltage Vin, according to Vout=QnVin.
A resonant converter circuit comprising:
- a transformer having:
- a transformer core;
- a conductive sheet wrapped at least around a portion of the transformer core;
- a plurality of secondary windings wrapped at least around a portion of the transformer core;
- a stray inductance, Ls, wherein the stray inductance, Ls, is not from an inductor;
- a stray capacitance, Cs, wherein the stray capacitance, Cs, is not from a capacitor;
- and
- a resistor with a resistance, R, in series with the transformer;
- wherein the resonant converter circuit produces a Q factor according to
- Q
- =
- 1
- R
-
- L
- s
- C
- s
- .
Dependencies are inferred from the claim text.