Abstract
Based on physical theory, a new concept for achieving high efficiency in a solid-state laser power supply charging circuit is first introduced in this paper that is, from the fact that when an electron from a power source enters the energy storage capacitor, a potential drop would occur in this process. This potential drop is the essence of the energy loss in a charging circuit. If the potential drop is small, or even negligible, power supply with a higher efficiency can be achieved. According to this design theory, a highly efficient charging circuit can be obtained if a power source with a single continuous increased voltage slightly higher than that of the energy storage capacitor is employed. With the use of this proposed technique, a prototype of a pulsed YAG laser power supply with high charging efficiency and high voltage charging precision is implemented. The design idea and the experimental results are described and discussed in detail.
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