US 2006/0152170 A1 · System for operating a plurality of negative dynamical impedance loads

Abstract

A system (100A, 100B, 200, 300) for operating three gas discharge lamps (1A, 1B, 1C) using a common power source comprises three branches (110, 120, 130) connected in parallel between a first input node (A) and a second input node (102), wherein each branch comprises a lamp. The system comprises current equalizing means for ensuring that the currents in all branches are mutually substantially equal. The current equalizing means comprise two equalizing transformers (151, 152), wherein an equalizing transformer (151; 152) has one winding (114; 125) connected in series with one lamp (1A; 1B) and has another winding (124; 135) connected in series with another lamp (1B; 1C).

Claims16

Dependent claims

System (100A, 100B, 200, 300) for operating a plurality of loads (1A, 1B, 1C) having a negative dynamical impedance using a common power source;

the system comprising N branches (110, 120, 130) connected in parallel between a first input node (A) and a second input node (102), N being an integer larger than 2;
wherein each branch comprises a load arrangement containing at least one load connected in series;
the N load arrangements being selected such that, if each branch conducts the same current, the voltage drops over all loads are mutually substantially equal;
the system further comprising current equalizing means for ensuring that the currents in all branches are mutually substantially equal.

1 more element

Dependencies are inferred from the claim text.

System for operating a plurality of negative dynamical impedance loads

Life of this patent

System for operating a plurality of negative dynamical impedance loads

Life of this patent

Abstract

Claims16