Patent ID: 11875731
Assignee: WUHAN TIANMA MICROELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A voltage generation method of a drive module, wherein the drive module comprises a mainboard, a power chip, and a driver chip, wherein the driver chip is electrically connected to the mainboard and the power chip respectively; the driver chip comprises a main control unit and a base voltage generation unit; the power chip is configured to provide an analog reference voltage signal to the driver chip; the mainboard is configured to send a display mode control instruction to the driver chip; and the driver chip is configured to output a plurality of base voltages; and
the voltage generation method comprises the following steps:
determining, by the main control unit, a current drive display mode according to the display mode control instruction provided by the mainboard and determining a target value of a base voltage of the plurality of base voltages in the current drive display mode according to the current drive display mode;
determining, by the main control unit, an optimal voltage multiplying relationship of the base voltage in the current drive display mode according to the analog reference voltage signal and the target value of the base voltage, calculating an actual output value of the base voltage according to the analog reference voltage signal and the optimal voltage multiplying relationship, and generating first instruction information comprising the actual output value; and
generating, by the base voltage generation unit, the corresponding base voltage according to the first instruction information.