Patent ID: 11881182
Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G

Claim 2:
3. The light-emitting device driver chip of claim 2, wherein the current generating unit comprises an operational amplifier, a first transistor, and a first resistor; the first resistor is connected in series between one of a source electrode and a drain electrode of the first transistor and a first voltage terminal, and the first resistor is connected in series between an inverting input terminal of the operational amplifier and the first voltage terminal; and the voltage output node of the voltage generating unit is electrically connected to a non-inverting input terminal of the operational amplifier through the voltage input node of the current generating unit, a gate electrode of the first transistor is connected to an output terminal of the operational amplifier, and the other of the source electrode and the drain electrode of the first transistor is electrically connected to the control output node; and
the first parallel control module is electrically connected to the non-inverting input terminals of the operational amplifiers of the current control modules.