Induction heating apparatus with means for improving the dv/dt c

Details Induction heating apparatus with means for improving the dv/dt c Induction heating apparatus with means for improving the dv/dt c

1975-06-13

1977-04-05

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

219 1077, 307252C, 321 14, H05B 504

Patent

active

040163911

ABSTRACT:
A gate controlled thyrister (SCR) used for switching at high frequency for induction heating is supplied with a negative bias during an interval ranging from the point where the forward current reaches to zero to the time of reapplication of a subsequent gating signal. This provides high dv/dt (the rate of rise of anode voltage) capability and small turn off time to the device.

REFERENCES:
patent: 3206696 (1965-09-01), Wright
patent: 3308800 (1967-03-01), Motto et al.
patent: 3553567 (1971-01-01), Pesce et al.
patent: 3622806 (1971-11-01), Williams
patent: 3821509 (1974-06-01), Amagami et al.
patent: 3821565 (1974-06-01), Horinaga
patent: 3855518 (1974-12-01), Genuit

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