It is concluded that the laser constant current source made of the synchronously adjustable tandem constant current tube has high constant current characteristic and protective property.
结果表明，用同步可调恒流管串联式电路制作的激光器恒流源具有很好的恒流特性和保护性能。
The constant current generator characteristic of source is realized by proportional integral (PI) algorithm.
采用PI算法，实现电源恒流外特性控制。
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