Novel mercury lamp power supply specially used for microscope

The utility model relates to a DC mercury lamp power supply and specifically relates to a mercury lamp power supply specially used for a microscope. The mercury lamp power supply is formed by the following circuits comprising an EMI circuit, a voltage-multiplying circuit, a rectification and filtering circuit, a power conversion half-bridge circuit, a main transformer circuit, a high-voltage conversion circuit, am output filtering circuit, a constant power circuit, a master control circuit, a protection circuit, a driving circuit, a microprocessor, a sound alarm circuit, a digital display circuit, a high-voltage self-starting circuit, a constant power control circuit, an AD sampling circuit and a mercury lamp. Through utilizing an application-specific integrated circuit chip and a microprocessor, the mercury lamp power supply is subjected to circuit design and PCB design again, so that the novel mercury lamp power supply specially used for the microscope is allowed to fully meet safety specification standard "EN60950-1(GB4943)" safety specification requirements of electronic products; through practical application, requirements of a mercury lamp used for the microscope are met; and the novel mercury lamp power supply specially used for the microscope is convenient to operate and complete in display and alarm functions, greatly improves the service life of the mercury lamp, and greatly reduces use cost of users.