Energy measurement device

An energy measurement device, comprising;

• a processing circuit;
• a conversion circuit coupled to the processing circuit, and coupled to a sensor through an input port of the energy measurement device to receive a sensing voltage;
• and
• a first measurement circuit coupled to the processing circuit through the conversion circuit, and coupled to the sensor through the input port;
• wherein when the processing circuit disables the first measurement circuit, the conversion circuit is configured to convert the sensing voltage into a preset measurement signal, and provide the preset measurement signal to the processing circuit;
• wherein when the processing circuit enables the first measurement circuit, the first measurement circuit is configured to convert the sensing voltage into a first measurement voltage, and the conversion circuit is configured to convert the first measurement voltage into a first measurement signal.

An energy measurement device, comprising;

• a processor;
• a plurality of input ports coupled to a plurality of sensors;
• and
• a plurality of energy measurement circuits, wherein each of the plurality of energy measurement circuits is respectively coupled to one of the plurality of input ports, and comprises:
• a conversion circuit coupled to the processor, and coupled to a corresponding one of the plurality of input ports to receive a sensing voltage of a corresponding one of the plurality of sensors, wherein when the sensing voltage is within a preset voltage range, the conversion circuit is configured to convert the sensing voltage into a preset measurement signal;
• and
• a first measurement circuit coupled to the processor through the conversion circuit, and coupled to the corresponding one of the plurality of input ports, wherein when the sensing voltage is within a first voltage range, the first measurement circuit is enabled by the processor, is configured to convert the sensing voltage into a first measurement voltage, and the conversion circuit is configured to convert the first measurement voltage into a first measurement signal.