CIRCUIT ARRANGEMENT FOR OPERATING A LOW-POWER LIGHTING UNIT AND METHOD OF OPERATING THE SAME

摘要

A circuit arrangement (3) is provided for operating at least one low-power lighting unit with a power supply (4) and in particular with a self-oscillating power supply. The circuit arrangement (3) comprises at least an input (12) for receiving an operating voltage (28) from said power supply (4) and an output (11) for connection to one or more low-power lighting units. To allow an efficient operation of said low-power lighting unit with the power supply (4), the circuit (3) comprises a pulse generator (17), connected with said input (12) and adapted to inject at least one trigger pulse (40a, 40b) into said power supply (4) during operation.

主权项

1. Circuit arrangement for operating at least one low-power lighting unit with a self-oscillating power supply, the self-oscillating power supply having a primary side for connection to a power source and a secondary side for connection to the circuit arrangement, the circuit arrangement comprising:
an input for receiving an operating voltage from said self-oscillating power supply at the secondary side of the self-oscillating power supply, an output for connection to one or more low-power lighting units, a pulse generator, connected with said input and adapted to inject at least one trigger pulse into the secondary side of said self-oscillating power supply during operation, and a pulse controller, connected at least with said pulse generator and configured to control said pulse generator in dependence of said operating voltage.