Trimming circuit and trimming method performable using such...

Details Trimming circuit and trimming method performable using such... Trimming circuit and trimming method performable using such...

H - Electricity

03

H

356/122

H03H 3/00 (2006.01)

Patent

CA 2019921

Abstract A trimming circuit (10) is described with the aid of which the desired value of an electrical component can be set. The component consists of a plurality of subcomponents (22.1 - 22.n) which are connected in parallel to each other and the values of which are in a predetermined relationship to each other. Into a supply line to each subcomponent (22.1 - 22.n) at least one electrically programmable field- effect transistor (26.1 - 26.n) is inserted which is adapted to be put permanently into a conductive state or a non- conductive state via a control gate terminal. When carrying out the trimming method the programmable field- effect transistors (26.1 - 26.n) are set to the conductive state or the nonconductive state in as many supply lines to the subcomponents (22.1 - 22.n) as required for reaching the value of the subcomponents which is necessary to adjust an electrical parameter in an assembly (14) connected to the trimming circuit (10) to a desired value. Single Figure

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