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Maimaitaccen Capacitance

Electrical4u
فیلڈ: Karkashin Kuliya da Dukkana
0
China

Misalci Kapatansa Mita

Mita kapatansa yana wani tsohon alama na ilimi mai tsari da shi ya zama don ci gaba kan kapatansa, yawancin daga cikin kapatansu masu hukuma. Mita kapatansa ta yi aiki a bangaren halayyar masu inganci bayan kapatansa da lokaci.

Halayyarsa ta amfani a hanyar ci gaban kapatansa. Don haka, za a iya nuna wani alamar RC da takamun voltage na VIN (a nan).

misalci kapatansa
A lokacin da kapatansa ya faru, voltajinsa a baya har zuwa waɗanda muke so kuɗi

Lokacin da ake buƙata kapatansa har zuwa 63.5 faida na fasaha duka takamun voltage na VIN.
ta ake kiran lokaci. Ana sanya shi da 'τ'.

Sai idan ake faru kapatansa da mutummin current source na ƙaramin kasa, kuma ake buƙata kapatansa har zuwa resistor da ƙaramin resistance. Don ci gaba kan kapatansa na al'adu, za a iya amfani da 555 timer tare da wasu alama na ilimi masu digital. Hanyar ci gaban lokacin da ake faru kapatansa, za a iya samun bayanin nan a nanofarads ko microfarads tare da zabi ƙaramin resistance na faru.

misalci kapatansa
Idan ake koyar da wasu hanyoyi na ci gaban kapatansa, mitar wannan ya zama da kyau don ci gaban electrolytic kafin ya kai zuwan Farad.

Idan kapatansa da ke faru ya fi sani da leakage, hanyar wannan za a iya haɗa canza bayanin kapatansa a ƙarin da sauran. Hanyar wannan ta zama daidaitaccen bayanin test capacitor a cikin ma'aikatar bypass da timing. Diagram ta gabatar misalci kapatansa na digital tare da 555 timer IC ana nufin a nan.
misalci kapatansa
A nan, an samu 555 timer a cikin alamar. Yana aiki a bangaren astable multivibrator. Frequency ta multivibrator yana ba da takamun kapatansa na ba a sanin (CX). Output ta multivibrator yana haɗa kan digital counter. Counter ta zai iya ci gaba lokacin da square wave.
Lokacin da ake faru square wave da ake ɗaukan 555 timers zai iya ci gaba da hanyar formula:

A cikin fasahar peak value na charging curve, digital counter zai iya haɗa reset. A nan, clock da 100 kHz pulses zai iya haɗa ON kuma zai iya haɗa counter. Ba ni, a lokacin da ake buƙata ƙaramin cycle, display zai iya haɗa update, kuma muna iya karanta bayanin kapatansa. Don samun display na direct da shi ne daidai, za a iya zabi currents na faru da reference frequency da suka daidai.

Shielding ta leads ya kamata a tabbas, kuma idan ake faru kapatansa na ƙaramin kasa, ya kamata ake haɗa short. Saboda hum ta 50 Hz zai iya haɗa kan batun na ƙarin.

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