Operating circuit for a high-pressure discharge lamp

Details Operating circuit for a high-pressure discharge lamp Operating circuit for a high-pressure discharge lamp

1986-06-17

1991-08-13

Razavi, Michael

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Flashers

315224, 315307, 315DIG7, 315DIG5, H05B 3700

Patent

active

050399160

ABSTRACT:
A circuit arrangement suitable for operating a high-pressure discharge lamp (80) in conjunction with a controlled current limiter (6) by means of a control signal which is at least composed of the sum of a lamp-voltage-dependent signal part and a lamp-current-dependent signal part. The invention, the absolute value of the lamp-current-dependent signal part is chosen to be smaller than the absolute value of the lamp-voltage-dependent signal part. The circuit arrangement provides a rapid control, which keeps the lamp voltage substantially constant.

REFERENCES:
patent: 4356433 (1982-10-01), Linden

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