扫描磁铁电源改进型控制研究

Control Design of a Scanning Magnet Power-supply

基于三角波励磁电流线性度以及三角波调制器原理的考虑．在传统的非线性近似系统基础上进行了改良，在全桥对称电路的基础上，采用一种基于脉宽调制的开环控制方案，使扫描磁铁电源输出的电流峰值为0～8A可调，扫描频率为5～8Hz，可调的线性度良好的连续三角波。

Based on the consideration of linear excitation current and principle of triangle wave modulator,this paper improves the design of traditional nonlinear system. Adopting PWM openloop control method based on the all - bridge symmetry circuit, the scanning magnet power supply can produce continuous triangle waveform current, the frequency can be adjusted from 0-5 Hz and 0 -8 Hz and the peak- to- peak current is 8 A.