Vehicle lamp control apparatus
AssigneeSilicon Works Co., Ltd.
InventorsHai Feng Jin, Ju Hyun Lee, Dong Hyeon Kim, Sung Gon Kim, Ho Jeong Jin, Chang Sik Shin, Ju Pyo Hong
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Abstract
The present disclosure discloses a vehicle lamp control apparatus. The vehicle lamp control apparatus includes a timing generator configured to detect a setting voltage, which is varied, and measure a time in which the setting voltage reaches levels of a first reference voltage and a second reference voltage to generate a first delay time and a second delay time, and a lamp control circuit configured to control sequential turn-on of light-emitting diode (LED) channels using the first delay time and the second delay time.
Claims18
A vehicle lamp control apparatus comprising:
- a timing generator configured to detect a setting voltage, which is varied, and measure a time in which the setting voltage reaches a level of a first reference voltage and a level of a second reference voltage to generate a first delay time and a second delay time;
- and
- a lamp control circuit configured to control sequential turn-on of light-emitting diode (LED) channels using the first delay time and the second delay time,
- wherein the timing generator receives a battery status signal and sets a first time from a time point at which the battery status signal is activated to a time point at which the setting voltage reaches the level of the second reference voltage as the first delay time.
A vehicle lamp control apparatus comprising:
- a timing generator configured to detect setting voltages, which are varied, in response to a battery status signal and measure a time in which each of the setting voltages reaches a level of a first reference voltage and a level of a second reference voltage to generate delay times;
- a timing controller configured to generate a start signal using the battery status signal and at least one of the delay times and to generate channel control signals using the start signal and remaining delay times not used to generate the start signal;
- and
- a constant current controller configured to turn on at least one of light-emitting diode (LED) channels in response to the start signal and sequentially turn on the remaining LED channels in response to each of the channel control signals,
- wherein the timing generator sets a first time from a time point at which the battery status signal is activated to a time point at which a preset one of the setting voltages reaches a level of the second reference voltage as a first delay time.
Dependencies are inferred from the claim text.