High voltage discharge lamp device

摘要

The present invention relates to a discharge lamp device which comprises a power source (1); a discharge lamp (2); a transformer (29) comprising a primary side connected to a side of the power source (1) and a secondary side connected on a side of the discharge lamp (2) for transforming a power source voltage (VB) of the power source into a high voltage; a switching element (31) for the primary side for controlling a power of the discharge lamp (2) by controlling a primary current of the transformer (29); a drive circuit (124) for driving the switching element (31) for the primary side; and a first power source circuit (96) connected on the secondary side of the transformer (29) for changing a voltage on the secondary side into a first predetermined voltage (V4). The drive circuit (124) is provided with a drive power source from the first power source circuit (124).