Electronically controlled nichrome-wire cutter

nicr_heater_wave-W600

Dilshan Jayakody presents an electronically controlled Nichrome-wire cutter:

In this project we construct electronically Controlled Nichrome-Wire Cutter. The main feature of this cutter is its (non mechanical) variable temperature controller. The temperature of the Nichrome-Wire is controlled using TL494 PWM controller. In this design TL494 is oscillated with fixed frequency and only varying factor is its duty cycle, in this given design R2 is used to control the duty cycle of the frequency.

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