Abstract: An analog-to-digital converting system and a method with offset correction mechanisms are provided. The method includes steps of: obtaining a direct current offset of an output voltage of a digital analog conversion unit in a system; obtaining first capacitance weights and second capacitance weights sequentially from small to large; subtracting the direct current offset from a digital signal; and multiplying bit values of the digital signal respectively by the corresponding first capacitance weight value or second capacitance weight value to output a decode signal.

Abstract: Disclosed is an LED fault detection circuit, including a current source, a detection resistor and a first circuit, coupled between an LED string and an LED driving circuit. The current source provides a first current. A first end of the detection resistor is coupled to a node between the LED string and the LED driving circuit, and a second end of the detection resistor is coupled to the current source. The first circuit is coupled to the current source and the detection resistor. After the LED string is driven by the LED driving circuit, a detection current flows through the detection resistor. Then, the first circuit generates a fault detection signal according to the sum of the first current and the detection current. As a response, the LED driving circuit stops driving or continues to drive the LED string according to the fault detection signal.