Hardware Hobbyists vs. Emulator Jockeys

Tony Duell ard at p850ug1.demon.co.uk
Fri Jun 19 14:00:27 CDT 2009


[723 regualtor as a swticher]

> I just checked what I have.  My 1977 Voltage Regulator
> Handbook doesn't list it at all.  My 1980 Linear Databook
> includes a couple of switchers among the typical applications.
> That would suggest such a data sheet would have to be
> around 1978 or 79.

You want to go back much further than that. DEC were using the 723 in a 
swithcing regulator circuit in 1972 (the date of my 11/45). 

-tony



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