Decorative lighting string with stacked rectification

Details Decorative lighting string with stacked rectification Decorative lighting string with stacked rectification

2007-10-02

2007-10-02

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Plural discharge devices and/or rectifiers in the supply...

C315S207000, C315S20000A, C315S18500S, C315S312000, C362S806000, C362S800000

Reexamination Certificate

active

11260167

ABSTRACT:
An improved decorative light string circuit comprises full bridge rectification located in or downstream of the front plug, wherein the rectification circuit contains one or more voltage reducing and/or filtering elements in order to reduce or limit LED drive current and reduce (filter) DC ripple and 1 or 2 LED series sets. Additional rectification circuits and LED series sets can be added in parallel to the first in “stacked mode”, with each rectification circuit and LED series set electrically independent of prior and subsequent circuits. This eliminates the rectifying diode current summation load restrictions imposed by prior art and associated safety hazard due to diode overheating.

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