Re: 5 to 10V level shifter?

Posted by Mark Cannell-2 on
URL: http://confocal-microscopy-list.275.s1.nabble.com/5-to-10V-level-shifter-tp7592213p7592221.html

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What brand is the driver?  Is this modulation control or just on/off?

Mark B. Cannell. Ph.D. FRSNZ FISHR
Department of Physiology, Pharmacology & Neuroscience
School of Medical Sciences
University Walk
Bristol BS8 1TD
 
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On 9/05/21, 9:44 AM, "Confocal Microscopy List on behalf of Khoroshyy Petro" <[hidden email] on behalf of [hidden email]> wrote:

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    Thanks.
    I will have a look on the shifter.
    I am a bit lost by analog control?
    Do you mean setting up the HT by control voltage?
    Thanks.
    Petro.

    On Sat, May 8, 2021, 23:12 Benjamin Smith <[hidden email]>
    wrote:

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    >
    > There are submicrosecond level shifters such as this:
    > https://www.onsemi.com/pdf/datasheet/mc14504b-d.pdf, and if the impedance
    > was high enough on the input you could even use a high side driver for even
    > faster switching speeds.  However, if you are driving a Pockels cell (which
    > normally requires analog instead of digital control) I would just use an
    > op-amp voltage multiplier.  A unity gain stable op-amp would be the easiest
    > bet, and one like this would be plenty fast:
    >
    > https://www.digikey.com/en/products/detail/analog-devices-inc/LT6200CS6-TRMPBF/1115933
    >
    > On Sat, May 8, 2021 at 12:58 PM Khoroshyy Petro <[hidden email]>
    > wrote:
    >
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    > posting.
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    > >
    > > Hi everybody.
    > >
    > > This question is not directly about confocal microscopy but, and might be
    > > better addressed on some electrical engineering forum. Bit i believe
    > there
    > > is someone who can guide me in the right direction.
    > > I need to drive a Pockel cell driver with 10 V pulses, but available
    > pulse
    > > generator has max 5V output. I need pulses with submicrosecond rising
    > time.
    > > I have searched for level shifters chips with needed bandwidth and
    > > impedance but all of what I found work up to 5.5 volts.
    > > I wonder if someone can recommend some solution for the problem or give a
    > > hint.
    > > Thanks.
    > > Petro.
    > >
    >
    >
    > --
    > Benjamin E. Smith, Ph. D.
    > Imaging Specialist, Vision Science
    > University of California, Berkeley
    > 195 Weill Hall
    > Berkeley, CA  94720-3200
    > Tel  [phone]
    > Fax [phone]
    > e-mail: [hidden email]
    >
    > https://vision.berkeley.edu/faculty/core-grants-nei/core-grant-microscopic-imaging/
    >