Conference paper
Application Specific Integrated Gate-Drive Circuit for Driving Self-Oscillating Gallium Nitride & Logic-Level Power Transistors
Wide bandgap power semiconductors are key enablers for increasing the power density of switch-mode power supplies. However, they require new gate drive technologies. This paper examines and characterizes a fabricated gate-driver in a class-E resonant inverter. The gate-driver’s total area of 1.2mm2 includes two high-voltage transistors for gate-driving, integrated complementary metal-oxide-semiconductor (CMOS) gate-drivers, high-speed floating level-shifter and reset circuitry.
A prototype printed circuit board (PCB) was designed to assess the implications of an electrostatic discharge (ESD) diode, its parasitic capacitance and package bondwire connections. The parasitic capacitance was estimated using its discharge time from an initial voltage and the capacitance is 56.7 pF.
Both bondwires and the diode’s parasitic capacitance is neglegible. The gate-driver’s functional behaviour is validated using a parallel LC resonant tank resembling a self-oscillating gate-drive. Measurements and simulations show the ESD diode clamps the output voltage to a minimum of –2V.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2018 |
| Pages: | 1-6 |
| Proceedings: | 2018 IEEE Nordic Circuits and Systems Conference |
| ISBN: | 1538676567 , 1538676575 , 9781538676561 and 9781538676578 |
| Types: | Conference paper |
| DOI: | 10.1109/NORCHIP.2018.8573497 |
| ORCIDs: | Hertel, Jens Christian , Pejtersen, Jens and Knott, Arnold |
ASIC Analog integrated circuit Electrostatic discharges Gate-driver Logic gates MOSFET Parasitic capacitance Resistance Self-oscillating Switching circuits
CMOS gate-drivers CMOS integrated circuits ESD diode GaN III-V semiconductors PCB application specific integrated circuits application specific integrated gate-drive circuit capacitance 56.7 pF class-E resonant inverter driver circuits electrostatic discharge electrostatic discharge diode fabricated gate-driver gallium compounds gate drive technologies gate-driver gate-driver functional behaviour high-speed floating level-shifter high-voltage transistors integrated circuit design integrated complementary metal-oxide-semiconductor gate-drivers logic gates logic-level power transistors low-power electronics package bondwire connections parallel LC resonant tank parasitic capacitance power density power transistors printed circuit design prototype printed circuit board design reset circuitry self-oscillating gallium nitride self-oscillating gate-drive switch-mode power supplies switched mode power supplies wide band gap semiconductors wide bandgap power semiconductors
