Study and development Inductance melting control system using low energy

摘要

This paper proposes a method study and development induction heating system using low energy the method was designed system by haft-bridge inverter circuit to the direct load of LC series resonant. The half-bridge inverter had been generating frequency on 47 kHz and adjustable a pulse width modulation (PWM) which program by microcontroller power supply full-bridge 50 volt and overload current sensor by means of hall current sensor. The exemplar had an aluminum round bar diameter size 8 10 13 mm. and 10 mm. as long size. The method had provided heat aluminum while 6-9 minute the small size of exemplar had melted fast more than extra size with use of current among 7.55-9.2 ampere is used minimum electric power of 377.5 watt and 461 watt as maximum. Comparison with other research used of power since 0.5-3 kilowatt have to from an isolated high frequency transformer had been losing power transfer more than direct resonant load wherewith the material have coincided of size.