Method of making a voltage divider

• US 4,505,032 A
• Filed: 06/29/1984
• Issued: 03/19/1985
• Est. Priority Date: 06/27/1983
• Status: Expired due to Fees

• Current Assignee: Analogic Corporation
• Original Assignee: Analogic Corporation
• Inventors: Praria, Guy B.
• Primary Examiner(s): Mayewsky, Volodymyr Y.
• Application Number:
  US06/626,531
• Time in Patent Office: 263 Days
• Field of Search: 219/121 EM, 219/121 LM, 219/541, 219/543, 219/552, 338/49, 338/195, 338/295, 338/320, 338/323, 338/324, 338/325, 338/328, 338/330, 338/333, 338/323, 29/610 R, 29/611, 29/620, 29/621, 29/414, 29/415, 174/126 CS
• US Class Current: 29/621
• CPC Class Codes: G01R 1/206 Switches for connection of measuring instruments or electric motors to measuring loads switches in general H01H
• CPC Class Codes: H01C 17/24 by removing or adding resistive material H01C17/23, H01C17/232, H01C17/235 take precedence
• CPC Class Codes: H03H 7/24 Frequency- independent attenuators
• CPC Class Codes: Y10T 29/49101 Applying terminal
• CPC Class Codes: Y10T 29/49792 Dividing through modified portion

Abstract

An apparatus relating to a voltage divider having one or more Kelvin connection taps, including first and second spaced terminals and a current carrying resistor between the first and second terminals. A third terminal is spaced from the resistor and the resistor has at least one conductive but non-current-carrying peninsula extending from a junction on the side of the resistor and connecting with the third terminal to produce a Kelvin connection tap. A cut is made only in the non-current-carrying peninsula along the path having a component parallel to the side of the resistor from which the peninsula extends and shading the junction of said peninsula and the side from the third terminal, to adjust the interconnection of the third terminal with the resistor and vary the voltage output without varying the resistance of the resistor. An extension of this cut may be made parallel to the edge of the peninsula to further increase the adjustment.

Claims

1. A method of making a voltage divider having at least one Kelvin connection tap comprising:

constructing first and second spaced terminals;

forming current-carrying resistor between said first and second terminals;

constructing a third terminal spaced from said resistor;

forming at least one conductive non-current-carrying peninsula of said resistor extending from a side of said resistor and connecting with said third terminal to produce a Kelvin connection tap; and

trimming the setting of the voltage divider by cutting into only said non-current-carrying peninsula along a path having a component parallel to said side of said resistor from which said peninsula extends to adjust the interconnection of said third terminal with said resistor and vary the voltage output without varying the resistance of the resistor.