Constant average forward current for LED is vital for maintaining a stable luminous intensity, so the LED driver that can offer a constant current is desirable when input voltage or output power change within the preset range. The constant-current unit can be constructed because of the characteristics in the LCL-T resonant network. And a DC input LED driver with multiple channels is presented in the paper, consisting of an inverter with full bridge, a transformer followed by one LCL-T passive network with several diode rectifiers. For LCL-T passive network, output voltage is the high-frequency AC current bus, which is followed by diode rectifiers connected in series. A 200-W prototype is established to prove the correctness and effectiveness of the analysis and design process.