Patent ID: 6181117
Filing Date: 2001-01-30
Classification: G05F

Abstract:
Power supply circuit of an electronic component (1) in a test machine to provide said component with a direct supply current from a given range under a nominal polarization voltage (Vcco), said power supply circuit including a master circuit and a slave circuit respectively including identical elementary supply circuits each able to provide on an output terminal (20, 20') a direct supply current from a half range under said nominal polarization voltage, said output terminals (20, 20') being coupled in parallel to the level of the electronic component being tested, said elementary supply circuits each including:a regulation circuit (11, 11') for maintaining on the electronic component a polarization voltage (Vcc) equal to the nominal polarization voltage (Vcco),a power circuit (14, 14') controlled by said regulation circuit (11, 11') to provide said direct supply current from said half range,wherein the regulation circuit (11) of the master circuit also being coupled to the power circuit (14') of the slave circuit, with the power circuit (14') of said slave circuit being disconnected from the regulation circuit (11') of the same slave circuit.