SU503238A1 - Frequency multiplier - Google Patents

Description

with the key, key 11 opens and key 10 closes.

The second pulse from the output of circuit 8 resets the readings of summing counter 9 and writes into it an initial number equal to the capacity of the auxiliary counter 12.

The pulses from the output of the donor reference generator 14 at a frequency FZ through the open key 11 are fed to the counting input of the auxiliary counter 12. When the supplementary counter 12 is filled, an overflow pulse appears at its output, which returns the control trigger 13 closes and key 10 opens. The pulses of the additional reference oscillator 14 begin to flow to the counting input of the summing counter 9, in which the initial number equal to the capacity of the auxiliary counter has been recorded, and the counter is filled with them before the next pulse from the output of the pulse former 7.

The number of pulses recorded in summing counter 9 for the period of the input signal will be equal to:

P p

Q-r

yr r;;:

at

The pulses from the output of the reference oscillator 1 with the frequency Fi are continuously fed to the counting input of the counting counter 3, which writes the number Q previously recorded from register 5 into it. When the number is written off, the output of circuit 2 is the pulse that goes to the control inputs of the circuit 4 to write the new number to the subtractive counter 3, and at the same time go to the output of the multiplier.

The output frequency of the multiplier with the expression:

FI

“Ymh -

Q

where the multiplication factor K is an integer or fractional number:.;.

Guvy.

Claims (1)

Invention Formula A frequency multiplier comprising a reference frequency generator and a series-connected summing counter, a write circuit, a register | p, a transfer circuit, and a subtracting counter, characterized in that, in order to improve the multiplication accuracy, a pulse shaper, a differentiation and distribution circuit, are controlled. trigger trigger, auxiliary counter, zero-fixing circuit, two keys and an additional reference generator, the output of which through the keys is connected to the counting inputs of the summing and auxiliary meters and with the outputs a control trigger, one of the inputs of which is connected to the output of the auxiliary counter, and the second to the control inputs the writing circuit and to one of the outputs of the differentiation and distribution circuit, the second output of which is connected to the reset bus of the summing counter, and the input to the output of the pulse former, with the circuit inputs the zero fixings are connected to the outputs of the deducting counter, and the output to the control input of the transfer circuit. tn t; y.