Lighting device with optical pulsation suppression by polyphase-driven electric energy

摘要

Polyphase alternating current power or direct current power rectified from polyphase alternating current power is used to drive a commonly-driven luminous body, or to separately drive adjacently installed individual electric-driven luminous bodies, so as to reduce pulsation of the light output.

主权项

1. A lighting device with optical pulsation suppression by polyphase-driven electric energy, the lighting device being supplied with electric power from a three-phase alternating current power line including a first wire (R), a second wire (S), a third wire (T), comprising:
a first full-wave bridge rectifier (802), wherein a first alternating current input end of the first full-wave bridge rectifier (802) is connected to the first wire (R), and a second alternating current input end of the full-wave bridge rectifier (802) is connected to the second wire (S) through a first series-connected current limiting component (Z10); a second full-wave bridge rectifier (803), wherein a first alternating current input end of the second full-wave bridge rectifier (803) is connected to the second wire (S), and a second alternating current input end of the second full-wave bridge rectifier (803) is connected to the third wire (T) through a second series-connected current limiting component (Z10); a third full-wave bridge rectifier (804), wherein a first alternating current input end of the third full-wave bridge rectifier (804) is connected to the third wire (T), and a second alternating current input end of the full-wave bridge rectifier (804) is connected to the first wire (R) through a third series-connected current limiting component (Z10), wherein the first, second, and third full-wave bridge rectifiers (802, 803, 804) have direct current positive output ends connected in parallel and direct current negative output ends connected in parallel to drive a direct current driven luminous body (2000).