I had a look on the market, did not find one, so we built one.
We have designed a small form synchronous rectifier, aka ideal bridge, using modern ultra low Rdson mosfets.
It started as a small side project, but the results are so good that we want to put this in production and make it a standard product.
The advantages of such bridge are very well documented:
Active rectification - Wikipedia
Synchronous Rectifier Circuit | Active Rectifier | Radio-Electronics.Com
Linear product presentation.
While this video is about automotive product, the principle is similar.
- operates from DC to 600Hz
- AC operating voltage 6Vac to 51Vac
- DC operating voltage 9Vdc to 72Vdc
- Iq = 1,5mA
- continuous load current up to 16A or more depending on mosfet configuration.
Do not use centre taped transformers (and centre taped used as main reference ground).
The price will start from 35euro and go down with volume as we get parts in lower price.
Up to 100 units - 35 euro
Up to 200 units - 30 euro
Over 200 units - 25 euro
GB google spreadsheet is open till 1st March included