CM2-750 70V/100V/LOW-Z GaN & SiC DSP 2CH AMPLIFIER
750W constant power into any load or distributed sound standard voltage: 2Ω, 4Ω, 8Ω, 70Vrms, 100Vrms with incorporated DSP front end
Status:
Active
Role:
System Architectural Design, Audio Power Stage and Analog Signal Processing design. Component level design and development of each sub-system.
Description:
This project required a complete redesign of an in-process product which was not making performance and scheduling targets. Architecturally, the majority of connectors and cables were removed and replaced with board-to-board connectors, resulting in a much cleaner, more cost effective and streamlined design. EMC compliance was built in from the ground up and a new and innovative power amplifier stage was designed.
Innovations:
The key innovation was the use of Gallium Nitride switching FETs and Silicon Carbide catch diodes to replace what would otherwise be a 6 element half bridge topology. Operation at the voltages required for 70V and 100V operation coincident with the current capability required for 2Ω operation required a completely new architecture for the amplifier output stage.
