Silicon carbide is a route 99% efficiency in induction heating drivers, claimed Cree as it introduced a 300A, 1.2kV half-bridge module.
Bolting straight into a industry-standard 62mm footprint, it includes two 5mΩ SiC mosfets and two SiC free-wheeling Schottky diodes, that drop 1.7V at 300A.
“The power module is pin-compatible to 62mm half-bridge modules, including IGBT modules rated at 450A or more, allowing designers to evaluate the module’s capabilities,” said Cree.
Dubbed CAS300M12BM2, price is $451 each for 1,000-unit quantities.
Other applications foreseen are: solar Inverters and variable-frequency motor drives.
A matched driver board (CGD15HB62P) is also available, which will operate the half-bridge on DC bus voltages up to 900V at up to 32kHz – or 64KHz with some component swaps.
It is completely isolated and includes everything required to interface microcontroller PWM waveforms to the half-bridge. It does need a 15V power rail on the microcontroller side.
A gate driver reference design is also available.
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