AC/DC fluxgate current sensor
2016
Provided is an AC/DC fluxgate current sensor, which comprises a fluxgate detection probe and a signal processing circuit. The fluxgate detection probe is formed by a main magnetic core, a magnetic gathering magnetic core, an excitation winding, a feedback winding and a secondary side winding. The signal processing circuit is formed by an exciting circuit and a zero magnetic flux detection circuit. The exciting circuit comprises an excitation signal generation circuit and a signal drive circuit. The excitation signal generation circuit has a sampling resistor. The zero magnetic flux detection circuit comprises an integral comparator circuit and an H-bridge drive circuit.
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