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Generator semnal dreptunghiular 275Hz cu NE555


Marius84

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Salutare!

Am nevoie de un generator de semnal dreptunghiular de 275Hz care sa fie construit utilizand NE555. Am gasit pe internet un calculator pentru asta, dar nu stiu ce valori au componentele din jurul acestuia. Atasez exemple

 

http://freespace.virgin.net/matt.waite/ ... nouts/555/

 

http://www.csgnetwork.com/ne555timer2calc.html

 

P.S. Cred ca ma voi opri la primul link, pare-se ca e mai usor de calculat :jytuiyu

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Postez ceea ce mi-a iesit mie, nu am cu ce sa masor frecventa, aparatul meu nu are rezolutie de hertzi, ci de khz. Oricum, imi afiseaza 0.3khz, ceea ce cred ca este ok.

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