Printed circuit board with at least one integrated precision resistor
First Claim
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1. A printed circuit board comprising:
- at least two connection points and at least one precision resistor for measuring a current flowing between said connection points, andat least one layer of insulating material,wherein said precision resistor is welded to and extends between said connection points in said printed circuit board,wherein said precision resistor is configured as a conductor wire,wherein said precision resistor is embedded into said layer of insulating material so that an underside, all edge sides and a major part of an upper side of said precision resistor are entirely covered with insulating material, andwherein the upper side of said precision resistor extends at least in sections flush with an upper side of said layer of insulating material,wherein said upper side of said precision resistor and said upper side of said layer of insulating material face towards the same direction, andwherein an underside of said connection points contacts the upper side of said precision resistor and the upper side of said layer of insulating material, while an upper side of said connection points contacts neither said precision resistor nor said layer of insulating material.
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Abstract
The invention relates to a printed circuit board (1) with at least two connection points (3) and at least one precision resistor (2) for measuring a current flowing between the connection points. The aim of the invention is to inexpensively produce a printed circuit board of the type mentioned in the introduction such that the printed circuit board has a reduced installation space while simultaneously having a preferably long service life. According to the invention, this is achieved in that the precision resistor extends between the connection points in the printed circuit board (11). The invention additionally relates to a corresponding method for producing said printed circuit board.
4 Citations
6 Claims
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1. A printed circuit board comprising:
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at least two connection points and at least one precision resistor for measuring a current flowing between said connection points, and at least one layer of insulating material, wherein said precision resistor is welded to and extends between said connection points in said printed circuit board, wherein said precision resistor is configured as a conductor wire, wherein said precision resistor is embedded into said layer of insulating material so that an underside, all edge sides and a major part of an upper side of said precision resistor are entirely covered with insulating material, and wherein the upper side of said precision resistor extends at least in sections flush with an upper side of said layer of insulating material, wherein said upper side of said precision resistor and said upper side of said layer of insulating material face towards the same direction, and wherein an underside of said connection points contacts the upper side of said precision resistor and the upper side of said layer of insulating material, while an upper side of said connection points contacts neither said precision resistor nor said layer of insulating material. - View Dependent Claims (2, 3, 4)
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5. A method for manufacturing a printed circuit board with at least two connection points and at least one precision resistor extending in said printed circuit board and being configured as a conductor wire for measuring a current flowing between said connection points, comprising the steps of:
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(a) Welding said precision resistor to said connection points (b) Embedding said precision resistor into a layer of insulating material so that an underside, all edge sides and a major part of an upper side of said precision resistor are entirely covered with insulating material and the upper side of said precision resistor extends at least in sections flush with an upper side of said layer of insulating material, wherein said upper side of said precision resistor and said upper side of said layer of insulating material face towards the same direction (c) Electrically insulating said connection points from each other so that a current flowing between said connection points flows through said precision resistor, wherein an underside of said connection points contacts the upper side of said precision resistor and the upper side of said layer of insulating material, while an upper side of said connection points contacts neither said precision resistor nor said layer of insulating material. - View Dependent Claims (6)
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Specification