Driver circuit for an led

Details Driver circuit for an led Driver circuit for an led

1996-09-09

1998-04-21

Pascal, Robert

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315200A, 307109, 372 38, 362800, H03K 301, H03K 501

Patent

active

057421331

ABSTRACT:
A driver circuit for an LED includes a switch device being connected to the LED, being controlled by an input signal, and having a current source circuit. The switch device short-circuits the LED after a transition to a first switching state, and the switch device supplies the LED from the current source circuit after a transition to a second switching state, causing a higher current to flow initially and causing a lesser current to flow after a predetermined time period has elapsed.

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