Power consumption detector and motherboard as well as fan board using the same

A motherboard, comprising a power consumption detector for detecting power consumption of an object to be detected, the object to be detected generating a working voltage during working, the power consumption detector comprising:

• a first resistor having a first end and a second end, wherein the first end is coupled to the object to be detected and configured to receive a current generated by the object to be detected during working;
• an amplification unit having a first input end, a second input end and an output end, the first input end coupled to a second end of the first resistor, the second input end configured to receive the working voltage, and the output end configured to generate an amplification signal;
• a voltage divider coupled to the output end of the amplification unit, and the voltage divider configured to receive the amplification signal and perform voltage division on the amplification signal to generate a voltage division signal;
• and
• a processing unit coupled to the voltage divider, and the processing unit configured to receive the voltage division signal, calculate the current flowing through the first resistor according to a level of the voltage division signal, and calculate a power consumption of the object to be detected according to the current and the working voltage.

A fan board, comprising a power consumption detector for detecting power consumption of an object to be detected, the object to be detected generating a working voltage during working, the power consumption detector comprising:

• a first resistor having a first end and a second end, wherein the first end is coupled to the object to be detected and configured to receive a current generated by the object to be detected during working;
• an amplification unit having a first input end, a second input end and an output end, the first input end coupled to a second end of the first resistor, the second input end configured to receive the working voltage, and the output end configured to generate an amplification signal;
• a voltage divider coupled to the output end of the amplification unit, and the voltage divider configured to receive the amplification signal and perform voltage division on the amplification signal to generate a voltage division signal;
• and
• a processing unit coupled to the voltage divider, and the processing unit configured to receive the voltage division signal, calculate the current flowing through the first resistor according to a level of the voltage division signal, and calculate a power consumption of the object to be detected according to the current and the working voltage.