Electromagnet power supply provided by our company adopts high precision bipolar highperformance full digital control constant current power supply, the maximum power 30A/100V,widely used for excitation of electromagnet, Helmholtz coil of inductive load. Continuous current zero crossing, contactless commutation, controlled magnetic field can produce a smooth, stable. Continuous scanning field; control mode current or magnetic field can provide a simple and convenient to use and control mode for the user.

The main functions and characteristics of the electromagnet power supply:

1) using 24bit ADC and DAC as the analog front end and the back end interface;

2) adopts ARM+DSP to realize the dynamic digital control;

3) using a large size LCD screen real time display the working state of power supply;

4) provides five output control mode, to adapt to different application environment:

* through the keyboard settings.

* through the analog voltage control.

* through the UART interface by the computer control.

* through the USB interface by the computer control.

* the use of preemptive design, without going through the panel specified control mode.

* output current change rate can reach 10A/s, the load on the reactive power automatically,according to the current, power limit rate.

5) automatic control field. The direct input of target value of the magnetic field strength in the power supply panel button, power supply according to a Gauss meter read back magnetic field value automatically adjust the output current, so as to make the practical stable magnetic fields to set the target value.

6) multiple protection functions. Considering many factors, city state cooling state, moduleworking state of the electric, to provide comprehensive protection for power supply.

* input supply undervoltage, overvoltage protection

* input power open phase protection

* input supply power down protection (protection inside the absorption of inductive load antiirrigation energy)

* module under voltage protection

* module overcurrent

* module power