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Polarity Detector With Delayed Memory Output

IP.com Disclosure Number: IPCOM000097308D
Original Publication Date: 1962-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Kuntzleman, HC: AUTHOR

Abstract

The magnetic core circuit provides a selected number of output pulses dependent on the polarity of an applied input signal. Input winding 11 has turns on each of two magnetic cores 12 and 13. Winding 11 is wound on core 12 in a first sense and on core 13 in a second or opposite sense. The input voltage applied to winding 11 is of a positive or negative polarity to set one or the other of the two magnetic cores.

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Polarity Detector With Delayed Memory Output

The magnetic core circuit provides a selected number of output pulses dependent on the polarity of an applied input signal. Input winding 11 has turns on each of two magnetic cores 12 and 13. Winding 11 is wound on core 12 in a first sense and on core 13 in a second or opposite sense. The input voltage applied to winding 11 is of a positive or negative polarity to set one or the other of the two magnetic cores.

Negative drive pulses are applied through diode 16 to winding 14 which is wound around both cores 12 and 13 in the same sense. A reset pulse is also selectively applied to winding 14. Output windings 17 and 18 are provided for cores 12 and 13, respectively. Cores 12 and 13 are biased by winding 15 so that the two cores switch conditions upon the input of a variable number of drive pulses.

Core 12 switches upon the application of a train of drive pulses to provide three output pulses. Core 13 switches upon the application of a train of drive pulses to provide five output pulses.

If the input voltage coupled to winding 11 is of a positive polarity, core 12 switches on the application of the train of drive pulses to produce three negative output pulses on output winding 17 on core 12.

Cores 12 and 13 are then reset by the reset pulse coupled to winding 14 to provide a positive pulse on both windings 17 and 18. Conversely, if the input voltage coupled to winding 11 is of a negative polarity, core 13 switches on the ...