The Charger Ciruit of Thyristor

Published:2011/7/19 11:16:00 Author:Michel | Keyword: Thyristor, Charger Ciruit | From:SeekIC

The above picture is the charger circuit of thyristor.This circuit charges nickel battery and the charging current is 1A,The charging time is 1 hour and it stops charging automatically when it is full.Because negative end of nickel-spread battery has negative temperature characteristic,VD3~VD5 forward voltage temperature characteristics compensate for it.When charging battery terminal is low voltage, the voltage on both ends of C1 are also low, thyristor VS2 stops.Thus the current flows through VD1→R1→R4→VD2→VS1 gate→VS1cathode→battery circulation and the power charges battery via VS1. If the battery voltage rises to the voltage set by RP1, the VS2 triggers and VS1 stops.



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