Vehicular lamp system, power supply circuit
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United States of America
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Jan 7, 2025
Grant Date -
Apr 6, 2023
app pub date -
Dec 8, 2022
filing date -
Dec 8, 2022
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Abstract
An array-type light-emitting device includes multiple pixel circuits electrically coupled in parallel and spatially arranged in a matrix. A power supply circuit supplies electric power to the array-type light-emitting device. A DC/DC converter has an output coupled to a power supply terminal of the array-type light-emitting device via a power supply line. A power supply control circuit sets a target value that corresponds to a light distribution pattern, and controls the DC/DC converter such that the control target voltage approaches the target value.
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