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ID number:944497
Evaluation:
Published: 19.07.2019.
Language: Latvian
Level: College/University
Literature: 1 units
References: Not used
Time period viewed: 2019.g. - 2019.g.
Extract

Trīsfāžu transformātors Tr1 paaugstina spriegumu no 380V uz 440V, diodes VD1, VD2, VD3, Vd4, VD5 un VD6 pārveido maiņstrāvu līdzstrāvā. Transformators Tr2 pazemina spriegumu līdz nominālā ierosmes sprieguma 180V, tām pieslēgts diožu tilts iztaisno maiņstrāvu. Tranzistori VT1 un VT2 pieslēgti pie mikroprocesora divām izejām, kas nodrošina dzinēja griešanos pazeminātā darba ātruma un darba ātruma režīmos. Savukārt tranzistori VT3 un VT4 nodrošina dzinēja griešanos atpkaļgaitas ātrumā, un tie ir pieslēgti pie vienas mikroprocesora izejas. Mikroprocesors PIC 16F690 ir pieslēgts pie 5V barošanas, un tā darba algoritma blokshēma ir attēlota zemāk.…

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