3 ms·
Here's my tip for the 555 timer: Learn what's inside it! As you can see on the "Inside the 555" page, there are fewer than 10 functional components inside and t
by tdeck 2y ago
Here's my tip for the 555 timer: Learn what's inside it! As you can see on the "Inside the 555" page, there are fewer than 10 functional components inside and three of them are resistors.
For some reason I always struggled to remember the different operating mode configurations, what they are called, and how to set them up. But one day I was trying to build a specific thing and decided to sit down and actually understand the 555. To my surprise, it's really simple in operation and requires relatively little electronics theory to understand and derive the different configurations yourself. Once I did that, I haven't forgotten it and I can come up with more creative uses for the 555.
- 082349872349872 2y agoYou might be interested in http://www.designinganalogchips.com http://www.designinganalogchips.com ...
- tdeck 2y agoThanks, I hadn't heard of this book and will definitely check it out!
- gus_massa 2y agoAnother link about the internal pars of the 555 https://www.righto.com/2016/04/teardown-of-cmos-555-timer-chip-how.html https://www.righto.com/2016/04/teardown-of-cmos-555-timer-ch...
- Stratoscope 2y agoThe Evil Mad Scientist kits are a great way to learn what's inside it. They are faithful replicas of the internal 555 circuitry, built with discrete transistors and resistors. You mentioned only ten functional components inside it, but if you look at individual transistors and resistors, there are quite a few more. Here is the through-hole component version: https://shop.evilmadscientist.com/productsmenu/652 https://shop.evilmadscientist.com/productsmenu/652 And a surface mount device version: https://shop.evilmadscientist.com/productsmenu/922 https://shop.evilmadscientist.com/productsmenu/922 I built the through-hole version, and it worked the first time I wired up a circuit around it. Highly recommended!
- NikkiA 2y ago'10' would be counting the comparator and 2 op-amps as 3 components, the replicas you're pointing at break those out to discretes too, because once you've started down that road, why wouldn't you?