| 摘要 |
PURPOSE:To precisely regulate the power controller and the like of an artificial statellite by automatically and periodically varying the output current characteristics of a solar battery simulator used as the power supply source of the satellite. CONSTITUTION:A load current I is detected by a current detector 9, and an electric current i proportional to the current is shunted from a constant-current power supply 12 by a shunt circuit 10. Thus, a current flowing through a zener diode 11 is reduced to lower the voltage across the zener diode. A voltage comparator 13 compares the output voltage V with the voltage across the zener diode to control a power amplifier 14 on the basis of the compared result. There are provided a gain control circuit 17 and a gain control voltage generator 16 for controlling the latter to obtain various V-I characteristics by altering the oscillating period and waveform of the gain control voltage generator 16. |
