HiFi linear supplies move to 4000 VAC isolation
The revised linear supply keeps ripple at the microvolt level while adding isolation that satisfies the safety review for EU and Japanese mains.
Linear supplies for audio are judged on noise, and the easiest way to hit a low noise figure is to compromise the isolation barrier. We did not take that trade.
The revised design holds 4000 VAC isolation and 0.5 W standby while keeping output ripple below the measurement floor of our own test bench. The same transformer family is used across the range, so a customer can move from 5 V to 12 V without a new safety submission.
Samples are available for evaluation alongside our Hi-Fi switch platforms.
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