Arrangement for shutting off an inverter

Details Arrangement for shutting off an inverter Arrangement for shutting off an inverter

1983-12-19

1986-10-07

Moore, David K.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch cut-out

315127, 363 55, 363 56, 361100, H05B 3703, H05B 4124

Patent

active

046161589

ABSTRACT:
A shut-off device is provided for an inverter which feeds at least one discharge lamp, the shut-off device operable to shut-off the inverter in limiting cases and remaining in this condition until a lamp replacement. The shut-off device flips into its normal condition when a holding current in a monitoring circuit falls below a flyback limit value. In order to keep the losses as low as possible, the monitoring circuit is dimensioned high-resistant and a separate holding circuit is provided, the separate holding circuit having a controlled dependency on the low control current in the monitoring circuit. In the disconnect case, the control current also suffices to hold the shut-off device in the disconnect condition when an electrode is broken.

REFERENCES:
patent: 4168453 (1979-09-01), Gerhard et al.
patent: 4336563 (1982-06-01), Suzuki
patent: 4455509 (1984-06-01), Crum et al.
patent: 4471422 (1984-09-01), Hierholzer et al.

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