Analog division circuit

A COMPLETELY MAGNETIC circuit which produces an alternating voltage output directly proportional to the quotient of two d-c input signals has been studied. The output is also directly proportional to the alternating voltage used for excitation, which, thus, may be employed as a multiplier input signal; otherwise, a regulated a-c supply is required. The circuit contains no semiconductors and is relatively insensitive to changes in the properties of the magnetic cores. It has the advantages of simplicity, ruggedness, ability to operate under severe environmental conditions, and reasonable accuracy for a wide range of the divisor and dividend control signals.