EEVblog #1115 – Traps In Chips – And the 7660

Dave looks at some traps in chips and their modes of operation. In this case the TI LM2776, a look a the classic 7660 charge pump voltage inverter, and output ripple and ways to reduce it.
Parametric searching, and a look at some interesting rail inverters.
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EEVblog #1332 – Facit Mechanical Calculator!

Teardown (partial) of a Facit C1-13 13 digit mechanical calculator from 1967. John Wolff’s mechanical ...

2 comments

  1. 这里真心不错,每次来都有新收获!

  2. 三天两头过来看一看,每次看完都有新体验!

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