Power converter circuits including high electron mobility transistors for switching and rectifcation
View Patent ↗A power converter circuit includes a storage component, a rectifier component comprising a first field effect transistor and having first and second bias states, and a switch including a second field effect transistor having first and second operational states. The first and second field effect transistors are High Electron Mobility Transistors (HEMTs).
1. A power converter circuit, comprising:
a storage component;
a rectifier component connected to the storage component comprising a first field effect transistor and having first and second bias states and a SiC semiconductor diode having a cathode connected to a source node of the first field effect transistor and an anode connected to a gate node of the first field effect transistor; and
a switch connected to the storage component and the rectifier component comprising a second field effect transistor having first and second operational states;
wherein the first and second field effect transistors comprise first and second high electron mobility transistors (HEMTs), respectively; and
wherein the power converter has a switching frequency in a range of about 10 MHz-100 MHz when operating in a resonance switched operational mode and in a range of about 1 MHz-10 MHz when operating in a hard switched operational mode.
2. The power converter circuit of claim 1 , wherein energy from a power source is stored in the storage component when the switch is configured in the first operational state and the rectifier component is in the first bias state and the stored energy in the storage component is released to a load when the switch is configured in the second operational state and the rectifier component is in the second bias state.
3. The power converter circuit of claim 1 , wherein the semiconductor diode comprises a Schottky diode.
4. The power converter circuit of claim 1 , wherein the first HEMT comprises at least one heterojunction as a conducting channel.
5. The power converter circuit of claim 1 , wherein the second HEMT comprises at least one heterojunction as a conducting channel.
6. The power converter circuit of claim 1 , wherein the power converter circuit is a Direct Current to Direct Current (DC to DC) power converter circuit and the switch is operable in the hard switched mode.
7. The power converter circuit of claim 1 , wherein the power converter circuit is a Direct Current to Direct Current (DC to DC) power converter and the switch is operable in the resonant switched mode.
8. The power converter circuit of claim 1 , wherein the power converter circuit is a Direct Current to Direct Current (DC to DC) power converter circuit and the storage component, the rectifier, and the switch are configured in a Buck configuration, a Boost configuration, a Buck-Boost configuration, a Cuk configuration, a Single Ended Primary Inductor Converter (SEPIC) configuration, or a Zeta configuration.
9. The power converter circuit of claim 1 , wherein the storage component comprises a magnetic field storage component.
10. The power converter circuit of claim 9 , wherein the magnetic field storage component comprises an inductor and/or a transformer.
11. The power converter circuit of claim 1 , wherein the storage component comprises an electric field storage component.
12. The power converter circuit of claim 11 , wherein the electric field storage component comprises a capacitor.
13. The power converter circuit of claim 1 , wherein the first and second HEMTs comprise first and second GaN HEMTs.