[time-nuts] WWV or Net Clock controlled oscillator

Tom Van Baak tvb at LeapSecond.com
Sun Mar 4 23:11:56 UTC 2018


Adrian, et al.

An updated list of PIC dividers:
    http://leapsecond.com/pic/picdiv-list.htm

Source code and hex files:
    http://leapsecond.com/pic/src/

And, you guessed it, PD60 is the one that divides 10 MHz into 60 Hz (exactly). Documentation and source code:
    http://leapsecond.com/pic/src/pd60.asm

/tvb

----- Original Message ----- 
From: "Adrian Godwin" <artgodwin at gmail.com>
To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
Sent: Sunday, March 04, 2018 2:57 PM
Subject: Re: [time-nuts] WWV or Net Clock controlled oscillator


> There is indeed a 60Hz out picdiv from Tom Van Baak -
> http://www.leapsecond.com/pic/picdiv.htm. It's not in that list but ask Tom.
> 
> I've just used one (modified for 50Hz out) to drive a 1A H-bridge circuit
> that supplies a 12V peak-peak square wave to an old LED clock, replacing
> the original wall-wart.
> It works very nicely, and is driven by the 10MHz output of a cheap surplus
> GPSDO.




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