.. zero (second part of the cycle). This circuit doesn’t tightly control this frequency, which isn’t a critical design parameter; the values in Figure 1 set the frequency to approximately 6 kHz. Q 2 , D 3 , and D 4 prevent V C1 ...
.. recently saw how certain audio power amplifiers can be used as oscillators ( Ref. 1 ). This Design Idea shows how those same parts can be used for simple amplitude modulation, which is trickier than it might ...
.. Woodward, a prolific circuit designer with way more than 100 published Design Ideas (DIs), had his “80 MHz VFC with prescaler and preaccumulator” [ 1 ] published on October ...
.. seen lots of interesting conversations and Design Idea (DI) collaboration devising circuits for power switching using inexpensive (and cute!) momentary-contact ...
.. maximum over the temperature range. The bias current is 76 pA maximum from 40 C to +85 C. I’d like to keep the design’s various independent error contributions under ½ PWM count (in this case, under 2 -17 of ...
.. discussions have sprung up here in editor Aalyia Shaukat’s Design Ideas regarding the limitations and quirks of, and design tricks for, the current control topologies shown in ...
.. have been numerous circuits published in EDN as design ideas (DI) for the past few months, centering around the “Flip ON Flop OFF” ( Ref. 1 ) circuit ...
.. of U 2 , the tolerance contributions of these components are those previously mentioned for the “right side-up” design respectively. U 2 ’s reference current is typically less than 250 nA over temperature, but its V REF of ...
.. voltage references with the same RC time constant. It thus automatically ratios out time constant tolerance. Slick. This Design Idea (DI) will describe a (possibly) new integrating converter that reaches a similar goal of accurate ...