[hpsdr] Class E Power Supply

[FRANCIS CARCIA]

Hi All,
A number of use isolation transformers for Class E power supplies. Multitap gives you a little more range. My supply is a pair of 2.5 KVA units with the primary across 240 volt mains. Most of us run 130 to 160 volts into the PDM modulator. 48 volts with a 1:2 output transformer will yield about 300 watts. 30 VDC around 150 watts. 13 VDC is limited to about 150 watts with a 1:4 transformer and 200 watts with a 1:5 transformer.  The higher the turns ratio the harder to broadband. Frank WA1GFZ
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