H - Electricity – 03 – F
Patent
H - Electricity
03
F
330/103, 341/111
H03F 1/34 (2006.01) G05B 11/01 (2006.01) G06G 7/14 (2006.01) H03K 19/23 (2006.01)
Patent
CA 1073980
ABSTRACT An electrical logic circuit arrangement comprising a direct-coupled operational amplifier having an input and an output, at least two control signal circuit inputs each connected to the amplifier input by way of a signal current path including a resistor, the values of the resistors being substantially equal and at least one current path including a current limiting arrangement between the resistor in that path and the amplifier input, the circuit further comprising a number of feedback paths equal to the number of signal current paths each feedback path leading separately from the amplifier output to an individual signal current path, there being one feedback path to each signal current path, each feedback path being connected to the respective input signal path at a point between the resistor of that path and the amplifier inut, this point further being located intermediate the resistor and the current limiting device of the signal input path for a path including such a device, and each feedback path including a resistor of substantially the same value as that of each signal input path resistor.
253339
Reyrolle Parsons Limited
LandOfFree
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