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'[EE] generating CCD bias voltages'
2004\10\14@113730 by Peter Moreton

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I need to generate a whole host (8x) of positive and negative voltages to
bias & clock a CCD. Ranges from -6v to +15v, just a couple of mA per rail. I
was planning to use digital pots + opamps, but this seem a little 'clunky'.
Does anyone know of a better way, maybe even a dedicated multi voltage
output chip?

Thanks, Peter Moreton

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2004\10\15@123907 by Peter L. Peres

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On Thu, 14 Oct 2004, Peter Moreton wrote:

>
> I need to generate a whole host (8x) of positive and negative voltages to
> bias & clock a CCD. Ranges from -6v to +15v, just a couple of mA per rail. I
> was planning to use digital pots + opamps, but this seem a little 'clunky'.
> Does anyone know of a better way, maybe even a dedicated multi voltage
> output chip?

How about a single switching regulator driving a custom transformer with
multiple secondaries, one of which is used for regulation feedback ?

Peter
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