| 摘要 |
PROBLEM TO BE SOLVED: To realize a power supply apparatus and a semiconductor test system, which can be made compact even in the case that a voltage applied to a load is adjustable. SOLUTION: The power supply apparatus is realized by improving a power supply apparatus which feeds back an applied voltage being applied to the load, acquires an error between the applied voltage and a set up voltage, brings its output amplifier to increase or decrease the amount of current flowing in the load based on the error, and applies a prescribed voltage to the load. The apparatus is characterized by disposing a voltage converting section therein, which brings a voltage level of a supply voltage of the output amplifier to follow a voltage level of the set up voltage. COPYRIGHT: (C)2008,JPO&INPIT
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