Technique for calibrating a current control circuit

Details Technique for calibrating a current control circuit Technique for calibrating a current control circuit

2005-09-13

2005-09-13

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

With signals, meters, recorders or testing devices

C073S862680, C324S649000, C702S085000

Reexamination Certificate

active

06943518

ABSTRACT:
A technique for calibrating a current control circuit includes a number of steps. One step includes setting a conduction time of a low-side switch, which is coupled between a low-side of the load and ground, to provide a desired load current to a load. Another step includes determining a high-side load current on a high-side of the load, which is coupled to a power source, when a low-side load current on the low-side of the load transitions through a first predetermined reference level. Yet another step includes establishing a first correction factor based upon the high-side load current and the low-side load current. Still another step includes adjusting the conduction time of the low-side switch based on the first correction factor to provide the desired load current to the load.

REFERENCES:
patent: 3911354 (1975-10-01), Stanton
patent: 5796545 (1998-08-01), Canclini
patent: 5920004 (1999-07-01), Gottshall et al.
patent: 6788490 (2004-09-01), Schillaci et al.

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