doimiy voltaj regulyatori sifatida ham tanilgan. Uning quvvat manbai kuchlanishi asosan AC kuchlanishidir. AC quvvat manbai kuchlanishining kuchlanishi yoki chiqish yukining qarshiligi o'zgarganda, kuchlanish stabilizatorining to'g'ridan-to'g'ri chiqish kuchlanishi barqaror bo'lib qolishi mumkin. Voltaj regulyatorining parametrlari kuchlanish barqarorligi, dalgalanma koeffitsienti va javob tezligini o'z ichiga oladi. Birinchisi, kirish kuchlanishidagi o'zgarishlarning chiqish kuchlanishiga ta'sirini ifodalaydi. Dalgalanma omili nominal ish sharoitida chiqish kuchlanishidagi AC komponentining kattaligini ko'rsatadi; ikkinchisi kirish kuchlanishi yoki yuk keskin o'zgarganda kuchlanishning normal qiymatiga qaytish vaqtini ko'rsatadi. DC tartibga solinadigan quvvat manbai ikki turga bo'linadi: uzluksiz o'tkazuvchanlik turi va kommutatsiya turi. Birinchisida, bir fazali yoki uch fazali AC kuchlanish quvvat chastotasi transformatori tomonidan tegishli qiymatga o'zgartiriladi, so'ngra barqaror bo'lmagan doimiy quvvat manbai olish uchun to'g'rilanadi va filtrlanadi, so'ngra barqaror kuchlanish (yoki oqim) kuchlanish regulyatori davri orqali olinadi. Bunday elektr ta'minoti sxemasi oddiy, kichik to'lqinli va kichik o'zaro aralashuvga ega, lekin u katta hajmga ega, ko'p sarf materiallari va samaradorligi past (ko'pincha 40 foizdan 60 foizgacha). Ikkinchisi regulyatsiyaga erishish uchun sozlash elementining (yoki kalitning) yoqish-o'chirish vaqti nisbatini o'zgartirish orqali chiqish kuchlanishini sozlaydi. Ushbu turdagi elektr ta'minoti kam quvvat iste'moliga ega va samaradorligi taxminan 85 foizni tashkil qiladi, ammo ahvolga tushib qolgani shundaki, dalgalanma katta va o'zaro shovqin katta. Shuning uchun u 1980-yillardan boshlab jadal rivojlandi. Ish uslubiga ko'ra, uni quyidagilarga bo'lish mumkin:
Regulyatsiya qilingan shahar quvvat manbai
Regulyatsiya qilingan shahar quvvat manbai
①Controlled rectification type. The output voltage is adjusted by changing the on-time of the thyristor.
② chopper type. The input is an unstable DC voltage, and the unidirectional pulsating DC is obtained by changing the on-off ratio of the switching circuit, and then a stable DC voltage is obtained after filtering.
③Converter type. The unstable DC voltage is first converted into high-frequency AC power by the inverter, and then transformed, rectified and filtered, and the new DC output voltage is sampled to feedback control the inverter operating frequency to achieve the purpose of stabilizing the output DC voltage.
DC Power supply 30V 10A White color Link:
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