Title:
POWER SUPPLY EQUIPMENT FOR LASER
Document Type and Number:
Japanese Patent JPH0669574
Kind Code:
A
Abstract:
PURPOSE: To obtain a power supply equipment for a laser capable of always throwing specified energy into a flash lamp when impedance of the flash lamp changes.
CONSTITUTION: When a switch 3 is turned on, a constant voltage source 5 makes a current I flow into a flash lamp 4 while keeping the potential difference between a point A and a point B in the figure constant. A current integrator 12 outputs an integrated value of I as a voltage V0. When the voltage V0 coincide with a previously set voltage VS, a comparator 13 sends a signal to a switch controller 14. When the signal is received, the switch controller 14 turns a switch 3 off and cuts off the current I.
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Inventors:
NAKAGUCHI TOMOYUKI
Application Number:
JP21904792A
Publication Date:
March 11, 1994
Filing Date:
August 18, 1992
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01S3/092; H05B41/34; (IPC1-7): H01S3/092
Attorney, Agent or Firm:
Takada Mamoru
Next Patent: SEMICONDUCTOR LASER DRIVING EQUIPMENT