Frequency-dividing circuit

Details Frequency-dividing circuit Frequency-dividing circuit

H - Electricity

03

K

328/70

H03K 23/44 (2006.01) H03K 3/037 (2006.01)

Patent

CA 1303688

ABSTRACT OF THE DISCLOSURE In a frequency-dividing circuit for producing an output having a frequency half that of its input, a pair of terminals of a latch circuit are connected to input terminals of a pair of delay means and are also connected to receive through a pair of transistors the outputs of the delay means. A single-phase input signal is input to the control electrodes of the transistors to turn on and off the transistors. When the transistors are turned from off to on the output states of the delay means are transferred through the transistors to invert the latch circuit, and the states of complementary terminals of the latch circuits are in turn transferred through the delay means to invert the output states of the outputs of the delay means. When the transistors are turned from on to off, no change occurs in the states of the circuit. In this way the states of the circuit are inverted each time the transistors are turned from off to on. A frequency-divided output can therefore be derived at one of the outputs of the first and second delay means. Either one or both of the first and second inverters may be replaced by a NAND gate or a NOR gate for permitting reset of the circuit.

590239

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