| 摘要 |
An enable unit (200) controls a DC/DC boosting unit (150) to operate only for a prescribed initial operation time from when the DC/DC boosting unit (150) is started, when a dimming switch (160) is turned on, a reset unit (173) of a microcomputer (170) receives driving power output from the DC/DC boosting unit (150) due to the start of the DC/DC boosting unit (150) to start the microcomputer (170), a feedback control unit (174) of the microcomputer (170) provides an on control signal to the enable unit (200) such that the DC/DC boosting unit (150) continuously operates even after the initial operation time, when the microcomputer (170) is started by the reset unit (173), and the DC/DC boosting unit (150) is installed to continuously operate even after the initial operation time, when the on control signal is provided to the enable unit (200). |
