LIGHTING CIRCUIT AND VEHICULAR TURN SIGNAL LAMP
First Claim
1. A lighting circuit for blinking a light-emitting unit having plural light sources, comprising:
- an abnormality detection unit which generates abnormality information when detecting an abnormality in even one of the plural light sources; and
a holding circuit which holds the abnormality information during a period when the lighting circuit is supplied with a blinking signal, wherein;
the lighting circuit supplies a drive current or currents to the plural light sources according to the blinking signal and stops supplying a drive current or currents to all of the plural light sources according to the abnormality information being held by the holding circuit.
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Accused Products
Abstract
A lighting circuit for blinking a light-emitting unit having plural light sources is equipped with an abnormality detection unit which generates abnormality information when detecting an abnormality in even one of the plural light sources, and a holding circuit which holds the abnormality information during a period when the lighting circuit is supplied with a blinking signal, The lighting circuit supplies a drive current(s) to the plural light sources according to the blinking signal and stops supplying a drive current(s) to all of the plural light sources according to the abnormality information being held by the holding circuit.
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Citations
5 Claims
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1. A lighting circuit for blinking a light-emitting unit having plural light sources, comprising:
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an abnormality detection unit which generates abnormality information when detecting an abnormality in even one of the plural light sources; and a holding circuit which holds the abnormality information during a period when the lighting circuit is supplied with a blinking signal, wherein; the lighting circuit supplies a drive current or currents to the plural light sources according to the blinking signal and stops supplying a drive current or currents to all of the plural light sources according to the abnormality information being held by the holding circuit. - View Dependent Claims (2, 3, 4, 5)
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Specification