POWER SUPPLY OUTPUT STABILIZING METHOD FOR LOAD HAVING INSTABLE OUTPUT CHARACTERISTICS AND PULSE WIDTH CONTROLLER FOR OUTPUT CURRENT FROM CURRENT TYPE INVERTER

摘要

PURPOSE: To stabilize output even for a load having instable output characteristics such as a laser unit by sustaining stable operation of a control system. ;CONSTITUTION: The power supply output stabilizing method for a load having instable output characteristics employing a feedback control current type inverter system comprises a step for determining the difference between a current set value Is and a load current detection value Ir through a comparator 1, a step for producing a current control signal Ic by subjecting a difference, obtained by removing the rising part of load current, to integration through an integrator 2, a step for feeding the current control signals Ic intermittently to a pulse width control circuit 3 and producing a corresponding control pulse, and a step for regulating the pulse width of output current from a current type inverter 4 by means of a control pulse.;COPYRIGHT: (C)1994,JPO&Japio