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Hybrid Reg PS
Here is just one of many possible hookups. It uses 4x6BX7GT to get 50 Watts of dissipation for the main losser. An IFR 840 n-Fet controls the grids, the combo looks like a very high mu triode.
That way not as much gain from the error amp is required. The error amp could be improved connected as a diff amp. This example is loaded with 160 mA CC sources. The switches are marked (space), (X) & (Z), those being keyboard keys to control the OP range. The output load can be switched between 10 & 160 mA by key (C). The pair of 0.2K resistors at the FWB rectifier help keep the input to the regulator low at a low range setting. The voltages & currents indicated while the simulation was running. Cheers to all, John Last edited by John L Stewart : January 21st 13 at 05:21 PM Reason: Wrong Schematic |
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