Abstract: A radiation hardened current sensor to sense direct current (DC), low frequency alternating current (AC), and high frequency AC includes a DC current transformer (DCCT) including a primary DCCT winding and a secondary DCCT winding. A self-oscillating modulator is coupled to the secondary DCCT winding of the DCCT to maintain a magnetic flux density of the DCCT at an upper limit and a lower limit of a magnetic hysteresis characteristic of the DCCT. An active filter passes only the DC and the low frequency AC from the DCCT as an output. An AC current transformer (ACCT) including a primary ACCT winding and a secondary ACCT winding. The output of the active filter is coupled to the ACCT and the secondary ACCT winding provides the high frequency AC.

Abstract: An integrated magnetic current sensor is provided. Aspects include a first transformer comprising a magnetic core, a first primary winding and a first secondary winding, a voltage source configured to supply a first alternating current (AC) voltage to the first secondary winding, a second transformer comprising, the magnetic core, a second primary winding, a second secondary winding, and a third secondary winding, wherein the first primary winding and the second primary winding are connected in series, and a bi-directional current source configured to bias a magnetic field in the magnetic core by supplying a current to the second secondary winding responsive to a sense current flowing through the first primary winding and the second primary winding.

Abstract: A radiation hardened current sensor to sense direct current (DC), low frequency alternating current (AC), and high frequency AC includes a DC current transformer (DCCT) including a primary DCCT winding and a secondary DCCT winding. A self-oscillating modulator is coupled to the secondary DCCT winding of the DCCT to maintain a magnetic flux density of the DCCT at an upper limit and a lower limit of a magnetic hysteresis characteristic of the DCCT. An active filter passes only the DC and the low frequency AC from the DCCT as an output. An AC current transformer (ACCT) including a primary ACCT winding and a secondary ACCT winding. The output of the active filter is coupled to the ACCT and the secondary ACCT winding provides the high frequency AC.

Abstract: An integrated magnetic current sensor is provided. Aspects include a first transformer comprising a magnetic core, a first primary winding and a first secondary winding, a voltage source configured to supply a first alternating current (AC) voltage to the first secondary winding, a second transformer comprising, the magnetic core, a second primary winding, a second secondary winding, and a third secondary winding, wherein the first primary winding and the second primary winding are connected in series, and a bi-directional current source configured to bias a magnetic field in the magnetic core by supplying a current to the second secondary winding responsive to a sense current flowing through the first primary winding and the second primary winding.

Abstract: A printed circuit board assembly includes a current sense trace to transmit an electrical signal through the assembly. The assembly includes a magnetic core including an opening for receiving the current sense trace and includes first stack layers and second stack layers that each define opposing sides of the opening, and elongate layers that extend from the first stack layers to the second stack layers and define additional opposing sides of the opening. The assembly further includes a Hall effect sensor located in the first stack layers or the second stack layers and configured to detect Hall effect data corresponding to a first Hall effect current of the electrical signal having a DC frequency. The assembly further includes a coil wrapped around the first stack layers or the second stack layers and configured to detect coil data corresponding to an AC component of the signal.

Abstract: A printed circuit board assembly includes a current sense trace to transmit an electrical signal through the assembly. The assembly includes a magnetic core including an opening for receiving the current sense trace and includes first stack layers and second stack layers that each define opposing sides of the opening, and elongate layers that extend from the first stack layers to the second stack layers and define additional opposing sides of the opening. The assembly further includes a Hall effect sensor located in the first stack layers or the second stack layers and configured to detect Hall effect data corresponding to a first Hall effect current of the electrical signal having a DC frequency. The assembly further includes a coil wrapped around the first stack layers or the second stack layers and configured to detect coil data corresponding to an AC component of the signal.