[time-nuts] Questions about TAC frontend, and some measurements

Bruce Griffiths bruce.griffiths at xtra.co.nz
Mon Dec 24 18:44:47 UTC 2012

Fabio Eboli wrote:
> Il 2012-12-23 07:42 Bruce Griffiths ha scritto:
>> The classic TAC using current mode switching is similar to the
>> attached circuit schematic.
> Bruce I tried to replicate the circuit
> you attached, the pic was low resolution
> so I tried to figure the values.
> This is the circuit asc text
> http://pastebin.com/EkgqmgfE
> If you have time please check it,
> and tell me the errors, thanks.
> *I wish to all the members of the list a happy Christmas*
> Fabio.

The capacitance of the BAT46 diodes is too large to be particularly useful.
HSMS282x series diodes from Avago are a better choice.
I can send you a Spice model for these if you want.
This model can easily be added to the LTSpice diode collection.


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