Patent ID: 7345433
Filing Date: 2008-03-18
Classification: B60Q,H05B,Y02B

Abstract:
1. A light emitting diode (LED) lamp module, comprising: a reverse polarity circuit having inputs coupled to first and second electrical contacts for receiving an input voltage and an output providing a power supply voltage having a polarity, the reverse polarity circuit accepting either a first polarity of the input voltage or a second polarity of the input voltage opposite to the first polarity and still providing the same polarity of the power supply voltage; an electronic current regulator coupled for receiving the power supply voltage from the reverse polarity circuit and generating a selectable current regulated under load in response to a programming signal applied to a programming input of the electronic current regulator, the electronic current regulator including, an LED matrix having an input coupled for receiving the selectable current from the electronic current regulator; and a programming circuit providing the programming signal to the programming input of the electronic current regulator, the programming circuit including a first diode and resistor serially coupled between the first electrical contact and the programming input of the electronic current regulator.