RESISTOR, ITS TRIMMING METHOD, AND POWER SUPPLY

Title:

RESISTOR, ITS TRIMMING METHOD, AND POWER SUPPLY

Document Type and Number:

Japanese Patent JP2004096036

Kind Code:

A

Abstract:

To provide a resistor that can use arbitrary resistor materials for the trimming resistor and precisely adjust the resistance without making the circuit large and also can make re-adjustment of the resistance.

This resistor is made up with the main resistors RM1, RM2, a trimming resistor RT1, an analog switch S1 to change the connection of the trimming resistor RT1, and a switching means 7 to change the switching of the analog switch S1. The switching means 7 includes a first resistor RS1 series connected to the power source and a second resistor RS2 connected to the ground. This resistor is composed so that the voltage signal divided by the first resistor RS1 and the second resistor RS2 changes and the switching of the analog switch S1 can be changed by breaking either one of the first resistor RS1 or the second resistor RS2.

Inventors:

KIDO KEISUKE
KOMATSU KAZUHIRO
KOMIYA MOTOKI

Application Number:

JP2002258616A

Publication Date:

March 25, 2004

Filing Date:

September 04, 2002

Export Citation:

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Assignee:

FUJITSU TEN LTD

International Classes:

H01C13/00; H01L21/822; H01L27/04; (IPC1-7): H01L21/822; H01C13/00; H01L27/04

Attorney, Agent or Firm:

Ryuji Inuchi

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