BLEEDER CIRCUIT
First Claim
1. A bleeder circuit for a combination of a phase cutting dimmer and a light emitting diode circuit, the bleeder circuit comprising active circuitry, the active circuitry comprisinga current limiting circuit for limiting a current flowing through the bleeder circuit, anda control circuit for controlling the current limiting circuit based on information derived from a current flowing through the light emitting diode circuit.
3 Assignments
0 Petitions
Accused Products
Abstract
Bleeder circuits (1) for combinations of phase cutting dimmers (2) and light emitting diode circuits (3) comprise active circuitry (4) to increase a number of options. The active circuitry (4) may comprise a current limiting circuit (5) for limiting a current flowing through the bleeder circuit (1). The active circuitry (4) may comprise a voltage detecting circuit (6) for activating or deactivating, in response to a detection result, the current limiting circuit (5) and may comprise control circuitry such as a micro processor circuit (7) for controlling the current limiting circuit (5) and may comprise a control circuit (9) for using information derived from a current flowing through the light emitting diode circuit (3) for controlling the current limiting circuit (5) and for controlling at least a part of the light emitting diode circuit (3) that comprises anti-parallel light emitting diodes (31-32) or serial and/or parallel light emitting diodes (33-36).
43 Citations
15 Claims
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1. A bleeder circuit for a combination of a phase cutting dimmer and a light emitting diode circuit, the bleeder circuit comprising active circuitry, the active circuitry comprising
a current limiting circuit for limiting a current flowing through the bleeder circuit, and a control circuit for controlling the current limiting circuit based on information derived from a current flowing through the light emitting diode circuit.
Specification