Voltage supply with recovery protection for a thyristor

Details Voltage supply with recovery protection for a thyristor Voltage supply with recovery protection for a thyristor

1983-11-10

1989-10-10

Salce, Patrick R.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

55139, 323903, H02H 7122

Patent

active

048736201

ABSTRACT:
A voltage supply for an electric filter is disclosed. The supply comprises a high-voltage rectifier, a pulsed voltage circuit including a resonant circuit and a parallel circuit of a thyristor and a diode which controls resonance in the resonant circuit. The thyristor is fired to trigger the resonant circuit and generate an oscillation which is delivered to the filter as a pulsed voltage. In order to prevent damage to the thyristor, it is fired whenever the duration of the current flowing through the diode is shorter than the thyristor recovery time.

REFERENCES:
patent: 3842337 (1974-10-01), Ekstrom et al.
patent: 3881147 (1975-04-01), Veda et al.
patent: 4100434 (1978-07-01), Iyotani et al.
patent: 4233039 (1980-11-01), Schmidt
patent: 4325114 (1982-04-01), Kobayashi et al.
patent: 4377835 (1983-03-01), Asplund et al.
"Elektrofiltersteuerung Mit Direktar Durchbruchser-Fassung", Siemens-Zeitschrift; 1971, No. 9; pp. 567-572, 4/5/71.

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