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Harshe · Hausa

Kyauta ne, babu asusu

555 Kalkuleta mai ƙidayar lokaci

Lissafin lokaci don da'irar mai ƙidayar lokaci 555 na al'ada. Canja tsakanin oscillator mai astable da madaidaicin harbi ɗaya, shigar da ƙimar resistor da capacitor, sannan duba sakamakon lokacin.

Madaidaicin ƙididdiga na oda na farko. Matsakaicin lokaci ya bambanta tare da zaɓin 555 IC, juriyar juzu'i, ɗigon capacitor, zafin jiki, parasitics da kayan fitarwa. Texas Instruments yana ba da shawarar yin amfani da NE555 na yau da kullun a 100 kHz ko ƙasa don rage murdiya; duba bayanan bayanan don ainihin ɓangaren ku. Bayanan Bayani na

Astable oscillator: tHIGH = 0.693 × (RA + RB) × C; tLOW = 0.693 × RB × C; T = tHIGH + tLOW; f = 1/T; Fitar da zagayowar aikin waveform = tHIGH/T. Monostable guda-harbi: tPULSE ≈ 1.1 × R × C. Texas Instruments NE555

Ta yaya 555 mai ƙididdige ƙididdiga ke aiki?

Zaɓi yanayin da za'a iya daidaitawa don maimaita tazara mai girma da ƙasa, ko yanayin monostable don bugun bugun jini ɗaya. Shigar da abubuwan haɗin lokaci kuma zaɓi raka'o'in su. Ma'auni sune madaidaitan ƙididdiga na oda na farko.

Tambayoyin da ake yawan yi

Ta yaya 555 mai ƙididdige ƙididdiga ke aiki?

Zaɓi yanayin da za'a iya daidaitawa don maimaita tazara mai girma da ƙasa, ko yanayin monostable don bugun bugun jini ɗaya. Shigar da abubuwan haɗin lokaci kuma zaɓi raka'o'in su. Ma'auni sune madaidaitan ƙididdiga na oda na farko.

An loda kimar da'ira na?

A'a. Lissafin yana gudana a cikin wannan burauzar. Ba a loda kimar ko adana ta wannan kayan aikin.

Menene bambanci tsakanin astable da monostable yanayin?

Yanayi mai tsauri yana maimaita babba da ƙananan tazara azaman oscillator. Yanayin da ake iya ɗauka yana haifar da bugun bugun jini guda ɗaya bayan fararwa; wannan kalkuleta yayi kiyasin fadinsa.

Me yasa zagayowar aikin waveform na al'ada ya tsaya akan ko sama da 50%?

A cikin daidaitaccen da'irar RA/RB, capacitor yana caji ta hanyar RA da RB, sannan fitarwa ta RB kawai. Wannan yana sanya babban tazara aƙalla idan dai ƙarancin tazara. Wasu topologies, kamar ƙara diode, na iya canza wannan.

Ginin da'ira zai dace da wannan sakamakon daidai?

A'a. Wannan yana amfani da ma'auni masu kyau kuma baya yin wani sashe ko juriyar juzu'i. Bincika zaɓaɓɓen takaddar bayanan mai ƙidayar lokaci kuma auna da'irar da aka haɗa.