主权项 |
1. A current mirror for a constant-current light-emitting diode (LED) driver system, the current mirror comprising:
at least one current mirror cell, wherein each of the at least one current mirror cell comprises:
a plurality of semiconductor circuits configured to generate an output current based on a reference current; anda control module configured to alternately and continuously charge the semiconductor circuits in response to a plurality of non-overlapping clock signals; wherein the semiconductor circuits include first and second semiconductor circuits, which are connected to a voltage rail, to a reference current signal path from which the reference current is received, and to a current output signal path to which the output current is output wherein the control module comprises a first control circuit and a second control circuit, wherein the first control circuit comprises a first set of switches connected to a gate terminal of the first semiconductor circuit, connected to the reference current signal path, and connected to the current output signal path, and wherein the second control circuit comprises a second set of switches connected to a gate terminal of the second semiconductor circuit, connected to the reference current signal path, and connected to the current output signal path. |