| Re: Psud II example [message #9371 is a reply to message #9369] |
Mon, 28 November 2005 05:56   |
Damir
Messages: 1005
Registered: May 2009
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Illuminati (2nd Degree) |
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The purpose for C1=0,22µF=220nF (1000 VDC ratings) is to remove voltage spikes and improve HF filtering, see "Valve Amplifiers" by M. Jones - good and detailed explanations about L and C input rectifiers. RDH is a good info, too.
For L-input you must "draw" the minimum, "critical current", about Im~Utr/Lch ~ 45mA, to avoid Udc=1,4*Utr, like in C-input case.
And you can substitute 100 Ohms resistor in CRC filter with a choke with sufficient current ratings, and Rw~100 Ohms, beter filtering.
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