Programmable load circuit

Details Programmable load circuit Programmable load circuit

1997-09-03

1999-08-31

Ballato, Josie

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 731, G01R 3122

Patent

active

059458224

ABSTRACT:
A programmable load circuit is constructed from two current sources that serve as loads of a device under test, a diode bridge to which is impressed a threshold voltage for selecting the load and which is connected to the input/output pins of the device under test, a first switch and a second switch for connecting to the diode bridge the appropriate current source according to output of the device under test, two constant-voltage sources for charging and discharging parasitic capacitance of the diode bridge, and a third switch and a fourth switch that connect the constant-voltage sources and the diode bridge when the device under test is in a signal-inputting state.

REFERENCES:
patent: 5200696 (1993-04-01), Menis et al.
patent: 5266894 (1993-11-01), Takagi et al.
patent: 5276355 (1994-01-01), Nagata
patent: 5521493 (1996-05-01), Persons

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