Development Of Pulse Semicondutor Laser Power Supply

Solid laser pumped by semiconductor laser has the advantages of laser diode and solid laser, so it develops rapidly in recent years and gets the extensive application in the fields of military, communication, processing and scientific research, etc. In order to meet the demands for laser power of semiconductor solid laser pump solid YAG laser, I synthetically adopt the singlechip digital automatic control technology which is extensively used in the intelligent instruments, products of electromechanical integration and automatic control system, LCD technology, PC switch technology and steady voltage, invariable current technology. And the semiconductor pulse laser power has been developed.This article analyses the operation principle of the semiconductor laser power in detail, and demonstrates the feasible scheme of the main part of the power according to the special request under the quasi-successive working way, designs the corresponding hardware circuits and software procedures which implement the accurate automatic control of timing, steady voltage and invariable current power supply without pulse voltage and surge current for digital display semiconductor laser power. Among them, the control unit of the primary and subordinate CPU structure has very high precision of control, takes the power field-effect transistor as the power device. The whole power supply is steady and reliable in the course of real work, and reaches the higher technical targets.The target that the power supply attained: pulse current amplitude range 27-80A, stability ?.8%, ripple ?.1 A; pulse rate range 1~ 1000HZ, accuracy ?0.01%; pulse width 200^S,accuracy ?0.2uS; . transient time...