Inverter branch driver
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsJulien Buckley, Rene Escoffier
Life of this patent
Estimating the term…
Abstract
An electronic circuit is provided, including, on one same substrate, an inverter branch formed by high side and low side transistors, and the drivers of the high side and the low side transistors. The drivers include logic gates configured to receive one same PWM input signal and to generate two alternated command signals sent to the high side and the low side transistors. An inverter system is also provided, including the electronic circuit and laser optocouplers configured to electrically insulate the electronic circuit of a controller delivering a pulse width modulation (PWM) input signal and a main supply electrically supplying the drivers.
Claims18
An electronic circuit;
- comprising:
- an inverter branch;
- and
- a system configured to drive the inverter branch formed at least partially on one same semi-conductive substrate,
- the inverter branch comprising
- a first power transistor of a high electron mobility transistor (HEMT) type connected to a floating potential and forming a high side transistor of the inverter branch, and
- a second power transistor of the HEMT type connected to a ground and forming a low side transistor of the inverter branch,
- the system for driving the inverter branch comprising
- a first driver of the high side transistor configured to deliver a first command signal to a gate of the high side transistor from a first input signal received at an input of said first driver, and
- a second driver of the low side transistor configured to deliver a second command signal to a gate of the low side transistor from a second input signal received at an input of said second driver,
- wherein the first and the second input signals are synchronous and phased, and
- wherein the first and the second drivers comprise respectively a first and a second plurality of logic gates configured to deliver the first and the second command signals without time overlap from the first and the second input signals.
Dependencies are inferred from the claim text.