Patent ID: 6204647
Filing Date: 2001-03-20
Classification: G01R

Abstract:
A power supply for providing a desired output impedance and one of a desired voltage and a desired current to a device under test (DUT), said supply comprising:a DUT current sensing circuit, said current sensing circuit providing a DUT current signal;an operational amplifier having an inverting and a non-inverting input and an output, said output being connectable to said non-inverting input through said current sensing circuit and said DUT, said DUT current signal being adjustably communicated to said inverting input;a DUT voltage sensing circuit, said voltage sensing circuit providing a DUT voltage signal, said DUT voltage signal being communicated to said inverting input; andan adjustable voltage source, said voltage source communicating with said inverting input, said power supply providing said desired output impedance and said one of said desired voltage and said desired current to said DUT in response to adjustment of said adjustable communication and said adjustable voltage source.