Constant-current charging and discharging power device for nuclear magnetic resonance water detecting instrument based on network

The invention discloses a constant-current charging and discharging power device for a nuclear magnetic resonance water detecting instrument based on a network. The device comprises a PC which is connected with a wireless router module for data transmission through a WiFi; an Ethernet serial port data conversion module which is connected with a MCU control module; and the MCU control module which generates a charging and discharging control signal in real time according to an instruction of an upper computer. The charging and discharging control operation is generated through the control of an optoelectronic isolator module, and the constant-current charging of an energy storage capacitor module is achieved through a constant-current charging module. The constant-current charging and discharging of the energy storage capacitor module is achieved through a constant-current discharging module. A monitoring unit module monitors the voltage values of the energy storage capacitor module and a lead-acid battery pack in real time. The device achieves the automatic, quick and stable constant-current charging and discharging of the energy storage capacitor module, solves problems that the constant-current charging and power resistor discharging speed are not balanced, the automatic charging and discharging cannot be achieved and the constant-current discharging is not complete, uploads the data in real time through the WiFI, employs the upper computer to monitor the state of a power supply in real time, achieves the man-machine separation, and brings great convenience to the upper computer for the control of the power supply.