Granted Patent B2

US 12,451,811 · App. 18/340,841 · Granted Oct 21, 2025

Inventors: Timothy Ziemba (Bainbridge Island, WA); Ilia Slobodov (Seattle, WA); Alex Henson (Seattle, WA); Morgan Quinley (Seattle, WA); John Carscadden (Seattle, WA); James Prager (Seattle, WA); Kenneth Miller (Seattle, WA)

Assignee: EHT Ventures LLC

H02M3/33523H02M1/08H02M7/5387H03H7/01H05G1/20H03K3/57

Abstract

Claims (53)

1. A high voltage power system comprising:

a power supply;

a plurality of switches electrically coupled with the power supply;

a transformer comprising:

a transformer core;

a primary winding wound around the transformer core, the primary winding electrically coupled with the plurality of switches; and

a secondary winding wound around the transformer core; and

an output electrically coupled with the secondary winding of the transformer, wherein opening and closing the plurality of switches produces an output of a plurality of high voltage pulses with a pulse width less than 500 ns, an amplitude greater than 1 kV, and a pulse repetition frequency greater than 1 kHz;

wherein the transformer provides galvanic isolation between the output and ground;

wherein the plurality of switches are disposed between the power supply and the transformer.

2. The high voltage power system according to claim 1 , wherein the plurality of switches and the primary winding have an inductance less than 1,000 nH.

3. The high voltage power system according to claim 1 , further comprising a bias compensation circuit arranged across the output, the bias compensation circuit comprising:

a bias compensation diode; and

a DC power supply arranged in series with the bias compensation diode.

4. The high voltage power system according to claim 1 , wherein the primary winding comprises a single turn primary winding wound once or less than once around the transformer core.

5. The high voltage power system according to claim 1 , wherein the primary winding comprises a plurality of single windings that are each wound once or less than once around the transformer core.

6. The high voltage power system according to claim 1 , wherein the primary winding comprises one or more wires wound one or fewer times around the transformer core.

7. The high voltage power system according to claim 1 , wherein the primary winding comprises a conductive sheet.

8. The high voltage power system according to claim 1 , wherein the plurality of switches are arranged in series.

9. The high voltage power system according to claim 1 , further comprising an energy recovery circuit coupled with the output and the power supply.

10. The high voltage power system according to claim 1 , wherein the plurality of switches are arranged in parallel.

11. A high voltage power system comprising:

a power supply;

a plurality of switches electrically coupled with the power supply;

a transformer comprising:

a transformer core;

a primary winding wound around the transformer core, the primary winding electrically coupled with the plurality of switches; and

a secondary winding wound around the transformer core; and

an output electrically coupled with the secondary winding of the transformer, wherein opening and closing the plurality of switches produces an output of a plurality of high voltage pulses with an amplitude greater than 1 kV, a pulse width less than 500 ns, and a pulse repetition frequency greater than 1 kHz;

wherein the transformer provides galvanic isolation between the output and the plurality of switches;

wherein the plurality of switches are disposed between the power supply and the transformer.

12. The high voltage power system according to claim 1 , further comprising a bias compensation circuit arranged across the output, the bias compensation circuit comprising:

a bias compensation diode; and

a DC power supply arranged in series with the bias compensation diode.

13. The high voltage power system according to claim 12 , wherein the primary winding comprises a single turn primary winding wound once or less than once around the transformer core.

14. The high voltage power system according to claim 12 , wherein the primary winding comprises a plurality of single windings that are each wound once or less than once around the transformer core.

15. The high voltage power system according to claim 12 , wherein the primary winding comprises one or more wires wound one or fewer times around the transformer core.

16. The high voltage power system according to claim 12 , wherein the primary winding comprises a conductive sheet.

17. The high voltage power system according to claim 12 , wherein the plurality of switches are arranged in series.

18. The high voltage power system according to claim 12 , further comprising an energy recovery circuit coupled with the output and the power supply.

19. The high voltage power system according to claim 12 , wherein the plurality of switches are arranged in parallel.

20. The high voltage power system according to claim 12 , wherein the plurality of switches and the primary winding have an inductance less than 1,000 nH.

21. A high voltage power system comprising:

a power supply;

a plurality of switches electrically coupled with the power supply;

a transformer comprising:

a transformer core;

a primary winding wound around the transformer core, the primary winding electrically coupled with the plurality of switches; and

a secondary winding wound around the transformer core;

an output electrically coupled with the secondary winding of the transformer, wherein opening and closing the plurality of switches produces an output of a plurality of high voltage pulses with an amplitude greater than 1 kV, a pulse width less than 500 ns, and a pulse repetition frequency greater than 1 kHz; and

an energy recovery circuit coupled with the output and the power supply;

wherein the transformer provides galvanic isolation between the output and the plurality of switches and/or between the output and ground;

wherein the plurality of switches are disposed between the power supply and the transformer.

Assignments (2)

Continuity (18)

References Cited (400)