Resistance feedback controlled power supply

Electric heating – Heating devices – With power supply and voltage or current regulation or...

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219497, 219505, 219499, 307125, H05B 102

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active

053528689

ABSTRACT:
A power supply for use with resistively-heated surgical instruments is provided, wherein accurate temperature regulation is achieved employing a resistance feedback circuit. The power supply powers the surgical instrument with an AC voltage waveform, and applies a fixed, low level DC signal to the heating element to produce a DC signal proportional to the instantaneous resistance of the heating element. The DC signal is compared to a setpoint value to obtain a control signal for adjusting the power delivered to the instrument to maintain a substantially constant heating element temperature, even under varying thermal loads.

REFERENCES:
patent: 4523084 (1985-06-01), Tamura et al.
patent: 4549073 (1985-10-01), Tamura et al.
patent: 4590934 (1986-05-01), Malis et al.
patent: 4626767 (1986-12-01), Clappier et al.
patent: 4662369 (1987-05-01), Ensslin
patent: 4736091 (1988-04-01), Moe
patent: 4744359 (1988-05-01), Hatta et al.
patent: 4752864 (1988-06-01), Clappier
patent: 4778980 (1988-10-01), Rathbun
patent: 4795886 (1989-01-01), Carter, Jr.
patent: 4903696 (1990-02-01), Stasz et al.
patent: 4938761 (1990-07-01), Ensslin
patent: 4961739 (1990-10-01), Thompson
patent: 4969885 (1990-11-01), Farin
patent: 5128602 (1992-07-01), Carter, Jr.

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