SU538474A1 - Broadband pulse frequency multiplier - Google Patents

Description

(54) Ш14РОКОПОБДЯЯЙ MULTIDIFICANT OF THE POTENTIAL FREQUENCY

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This invention relates to a computational measurement technique, namely, to devices. designed to multiply the pulse frequency.

A wideband pulse multiplier is known, comprising keys, a controlled pulse generator, an integrating amplifier, a phase comparator, a frequency divider 1.

However, such a frequency multiplier has; High speed and, in addition, performed on significant equipment.

A wideband frequency multiplier is also known, which is selected as the AND mode and contains a controlled oscillator and an integrating amplifier, which are connected in series. And the key is 2.

Such a multiplier also has a low performance.

The purpose of the invention is to increase speed.

For this purpose, an I / T pulse counter is inserted into a broadband frequency multiplier containing a controlled oscillator, an integrating amplifier and a key. setting factor multiplier and

cos:; - i; if; HHH, the first input of which is soy

The second input is with the output of the multiplication factor multiplier, and the output is with the input of the integrating amplifier to the first input of the key, the second input of which is connected to the oscillator of the controlled oscillator, and the output to the counting input of the pulse counter.

On the street there are:; Lena structural electrical circuit w :: r; c: tslosnogo multiplier pulse frequency.

The frequency multiplier contains a pulse counter 1, a coincidence element 2, a setpoint 3 of the multiplication factor, an integrated amplifier 4, a controlled oscillator 5 and a key 6.

The frequency multiplier works as follows. After the counter 1 is reset to the zero state by a pulse of the INPUT frequency, pulses from the controlled generator 5 arrive at its counting input. From counter 1, the number of counted pulses, for example in the BINARY code, goes to the first input of the coincidence element 2, to the second input of which 3, a number is entered that determines the multiplication factor in the same code. With the same codes at the output of the coincidence element 2, a pulse appears, which terminates with the arrival of the input frequency pulse. This pulse arrives at the integrating amplifier 4 and for the time of its operation closes the key 6, stopping the flow of pulses to the counter 1 of the controlled generator 5. The voltage from the integrating device, plug 4, is supplied to the controlled generator 5, which at a given voltage is set to frequency

F nl,

where n is the multiplication factor; f - input frequency; F is the frequency of the controlled oscillator.

Any change in the input frequency changes the duty cycle of the coincidence element 2, thereby changing the voltage at the output of the integrating amplifier 4, which affects the controlled oscillator 5, so as to maintain a constant multiplication factor. Similarly, the change in the control oscillator 5, due to its instability, is compensated, but the duration of the pulse with the output of the coincidence element 2 is also changed. Measurement of the PCC on the multiplication factor.

F o rmu l invention

A broadband pulse frequency multiplier, containing a controlled oscillator and an integrating amplifier, which are connected in series, and a key, characterized in that, in order to improve performance, a pulse counter, a multiplier factor adjuster and a coincidence element, the first input of which is connected to the output of the counter, are entered into it , the second input - with the output of the setpoint of the multiplication factor, and the output - with the input of the integrating amplifier and the first input of the key, the second input of which is connected to the output of the controlled generator, and the output d - to the counting input of the pulse counter.

Sources of information taken into account in the examination:

1. Author's certificate number 337901, cl. H 03 W 19/06 dd. 11.12.69.

2. The author's certificate number 310343, CL H 03 B 19/10 from 09.06.69 (prototype).