Electric discharge lamp lighting unit
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsFumihiro Minami, Takashi Ohsawa
Life of this patent
Estimating the term…
Abstract
An electric discharge lamp lighting device wherein a high voltage generating transformer 10 comprises a secondary coil 13 wound on an outer side of a laminated core 12 disposed in the center of a bobbin 11 and a primary coil 14 wound on an outer side of said secondary coil 13. A high voltage output terminal 13a of said secondary coil 13 is connected to a high voltage terminal of an HID lamp through a terminal 12a of a laminated core 12. A low voltage input terminal 13b of said secondary coil 13 is connected to a primary coil 14. As a result, insulation volume can be reduced and a reduction in the size of the device can be achieved.
Claims16
An electric discharge lamp lighting device provided with a high voltage generating transformer, wherein a secondary coil of said high voltage generating transformer is disposed near a core, a primary coil is disposed on an outer side of said secondary coil, a high voltage terminal of said secondary coil is connected to a terminal of said core and a low voltage terminal of said secondary coil is connected to said primary coil.
An electric discharge lamp lighting device provided with a high voltage generating transformer, said high voltage generating transformer having
- a core made of a magnetic material,
- a primary coil encircling said core,
- a secondary coil encircling said core, a high voltage terminal of said secondary coil connected to a terminal of said core and a low voltage terminal of said secondary coil connected to a terminal of said primary coil, and
- wherein said secondary coil supplies a secondary voltage generated by magnetic induction of said high voltage generating transformer.
An electric discharge lamp lighting device comprising:
- a connector connecting a discharge lamp,
- a high voltage generating transformer supplying voltage to said discharge lamp,
- a case storing said high voltage generating transformer,
- a luminance intensity switching motor for switching luminance intensity, and
- wherein an empty space is formed by offsetting said case to one side of an axis of said connector and said space houses said luminance intensity switching motor.
An electric discharge lamp lighting device provided with a high voltage generating transformer, wherein a secondary coil of said high voltage generating transformer is disposed near a core, a primary coil encircling said secondary coil, a high voltage terminal of said secondary coil being connected to a terminal of said core and a low voltage terminal of said secondary coil being connected to said primary coil.
An electric discharge lamp lighting device provided with a high voltage generating transformer, wherein a secondary coil of said high voltage generating transformer is disposed near a core, a primary coil circumferentially surrounds said secondary coil, a high voltage terminal of said secondary coil being connected to a terminal of said core and a low voltage terminal of said secondary coil being connected to said primary coil.
Dependencies are inferred from the claim text.