초록 ▼

An electric current sensor employing a Hall effect generator and a ferrite substrate to be used in the measuring of electrical currents flowing in a current carrying conductor comprising a toroid core having a first and a second gap, a Hall effect generator, a current source, an amplifier, and a tra

An electric current sensor employing a Hall effect generator and a ferrite substrate to be used in the measuring of electrical currents flowing in a current carrying conductor comprising a toroid core having a first and a second gap, a Hall effect generator, a current source, an amplifier, and a trace configuration positioned on the substrate for electrically coupling the amplifier to the Hall effect generator. The toroid core and ferrite substrate forming the complete magnetic circuit for the flow of the magnetic field. The trace configuration thereby being routed so as to be exposed to the magnetic field in two different impinging directions so to compensate for any unwanted induced voltages from being introduced into the output voltage thereby achieving an improved transient response.

대표청구항 ▼

[ What is claimed is:] [1.] A current sensor for sensing electrical current in a current carrying conductor, said current sensor comprising in combination:a substrate having a planar surface;a toroid core coupled relative to said substrate, said toroid core forming a first and a second gap relative

[ What is claimed is:] [1.] A current sensor for sensing electrical current in a current carrying conductor, said current sensor comprising in combination:a substrate having a planar surface;a toroid core coupled relative to said substrate, said toroid core forming a first and a second gap relative to said substrate and facilitating the flow of a magnetic field;a Hall effect generator coupled to said planar surface, said Hall effect generator being free of inductive leads and positioned within said first gap;current source means for providing a control current to said Hall effect generator, said current source means being electrically coupled to said Hall effect generator;amplifier means for amplifying the output voltage from said Hall effect generator; anda trace configuration, said trace configuration being electrically coupled to said amplifier means and to said Hall effect generator, said trace configuration being positioned on said substrate so as to be exposed to the magnetic field in two different impinging directions;whereby the magnetic field created in said toroid core flows across said gap and across said Hall effect generator when electrical current flows through the current carrying conductor, said Hall effect generator producing an output voltage that is proportional to the magnetic field, said trace configuration providing for compensation of any unwanted induced voltages from being introduced into the output voltage thereby achieving an improved transient response.