Vehicle meter LCD backlight and handle brightness regulatable circuit

The utility model discloses a vehicle meter LCD backlight and handle brightness regulatable circuit including a first resistor, a third resistor, an MCU, a fourth resistor, a fifth resistor, a driver circuit, a first transistor, a text board backlight circuit, a handle backlight circuit, and an LCD light. One end of the first resistor is connected to a regulatable PWM pulse signal end, and the other end of the first resistor is connected to one end of the third resistor, the other end of which is connected with an MCU pulse signal input end. An MCU text board backlight signal output end is connected with one end of the fourth resistor, the other end of which is connected with one end of the fifth resistor and the drain electrode of the first transistor separately. The other end of the fifth resistor is connected with the gate electrode of the first transistor. The source electrode of the first transistor is connected with the text board backlight circuit. An MCU handle backlight signal output end is connected with a driver circuit input end. A driver circuit output end is connected with the LCD light and the handle backlight circuit separately.