| http://www.w3.org/ns/prov#value | - Assuming that the Hall voltage Vhe1 of a Hall element becomes A??K??Bhe1 (A is the amplification factor of a preamplifier, K is a constant, and Bhe1 is the magnetic flux density the Hall element receives), then a PI regulator automatically adjusts the bias point of the PI output by feedback control in such a manner that A??K??Bhe1+Vref=AGND (=0) holds.
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