Patent ID: 9307597
Filing Date: 2016-04-05
CPC Classification: H05B,Y02B

Claim Text:
1. A system controller for regulating a string current flowing through a string of one or more light emitting diodes, the system controller comprising: a first controller terminal coupled to a base terminal of a bipolar junction transistor, the bipolar junction transistor further including an emitter terminal and a collector terminal, the collector terminal being connected to a string of one or more light emitting diodes; a second controller terminal coupled to the emitter terminal of the bipolar junction transistor and coupled to a first resistor terminal of a resistor associated with a resistance; and a third controller terminal coupled to a second resistor terminal of the resistor; wherein the system controller is configured to: wherein the system controller further includes: wherein the current generator includes a first transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive the amplified signal, the third transistor terminal being coupled to the first controller terminal and configured to output the base current; wherein the current-mirror component includes: wherein: