Class H Linear Grounded Bridge

The use of uncommon off-wall transistors with 350 V specification is no reliable solution for their second breakdown behavior, audio performance and also regarding their availability. Due to the Class AB amplifier kernel, Dynacord’s linear grounded bridge concept has been proven extremely reliable and superior in its audio performance over many years. One of the biggest advantages of grounded bridge solutions is a significantly reduced “voltage strain” on the power transistors.

This linear concept of a 3-stage Class H switch mode power supply enables the design of extremely efficient high power amplifiers featuring peak output power significantly over 200V and unparalleled audio performance. The image shows the switching behavior of an amplifier comprising floating 3-stage Class H technology. The amplifier’s dissipation power is proportional to the area between the operating voltage and the output signal. The smaller this area gets, the lower thermal loss of the power amplifier’s output transistors.