PWM to 0-5V

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  1. - 29th April 2010, 19:49 #5
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    Gusse
    Gusse is offline Member
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    Quote Originally Posted by LinkMTech View Post
    Oops! Took too long to edit. Wanted to include partial schematic for clarity.
    Don't recall actual PWM frequency but running PIC on IOSC set to 8MHz.
    This not really solution for your problem but why you have so big RC time constant for filter?
    PWM cycle time for 8MHz is ~2.5ms.
    39kOhm and 100nF:
    Name: 39k-100n-8MHz.jpg Views: 76523 Size: 35.6 KB

    How about something like this or in that range?
    10kOhm and 10nF
    Name: 10k-10n-8MHz.jpg Views: 76656 Size: 40.7 KB
    BR,
    -Gusse-
    Last edited by Gusse; - 29th April 2010 at 19:52. Reason: Some corrections
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