Robust, high-density, high-efficiency state sequence controller

Details Robust, high-density, high-efficiency state sequence controller Robust, high-density, high-efficiency state sequence controller

1996-03-25

1999-04-06

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363138, H02M 7517, H02M 7521

Patent

active

058926739

ABSTRACT:
A high-density control circuit for an auxiliary resonant commutation pole (ARCP) circuit is internal to the ARCP package and includes a state machine sequencer for providing control and timing signals to achieve high-efficiency, zero-voltage, and fault-tolerant switching converter operation. The phase leg controller receives as inputs a phase enable signal and a pulse width modulation (PWM) signal from a system controller and gate drive feedback signals from main and auxiliary gate drivers. There are four paths the state machine sequencer can take when making a transition from one dc rail to the other, depending on whether the main diode or main switch is conducting and the magnitude and polarity of the inverter pole output current.

REFERENCES:
patent: 4730246 (1988-03-01), Schwesig
patent: 5047913 (1991-09-01), DeDoncker et al.
patent: 5172309 (1992-12-01), De Doncker et al.
patent: 5568368 (1996-10-01), Steigerwald et al.
patent: 5594634 (1997-01-01), Rajashekara et al.
patent: 5612860 (1997-03-01), Meszlenyi
"The Auxiliary Resonant Commutated Pole Converter", R.W. DeDoncker, JP Lions, IEEE-IAS 1990 Converence Proceedings.

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