SU746573A1 - Frequency-output dividing device - Google Patents

Description

one

The invention relates to electrical computing devices and may be used in analog computing.

Known devices of similar purpose — fjl — do not allow for high division fatigue.

It is also known that a frequency output splitter device contains a summation unit connected in series, a DC amplifier, an output generator, the output of which is connected to the first input of a frequency measurement unit, the second input of which is connected to the output of an inverting amplifier, and the output from the subtracting input of the comparison unit, the first summing the input of the summation unit is connected to the output of the signal-divisible source, and the second summing input is connected to the output of the signal-divider source and the input of the inverting amplifier .

The known device has a high static accuracy, provided by the features of the structure and the compensation method of conversion.

The shortage of the known is the low speed, due to the presence in the scheme of inertial averaged yuschih links.

The aim of the invention is to increase speed.

 The goal is achieved by

10 J: to the device containing the summation unit, the summing inputs of which are connected to the signal sources and the target signal, and the subtractive input is connected to the output 5 of the frequency measurement unit, the output of the summation unit direct current, the output generator, the output of which is connected to the first input of the measuring unit E-1 and frequency, was connected to the input of the frequency measuring unit through an inverting amplifier of the source of the separator, the summing amplifier was entered, the first and second inputs of which

25 are connected to the signal-divisible and signal-divider sources, respectively, the third input of the summing amplifier is connected to the output of the DC amplifier, and the output is to

Claims (2)

30 to the first input of the output generator, the second input of which is connected to the source of the signal-divider. The drawing shows the proposed device. The device contains a summing block 1, a constant toKa amplifier 2, a summing amplifier 3, an output generator 4, a frequency measurement block 5, an inverting amplifier b and a signal-dividend, U, a signal chopper, f is the output frequency of the device. The outputs of the source-delimited signal and the signal are splitter- (U and connected to the summing inputs of the summation unit, the output of which is connected to the first input of the summing amplifier through the DC amplifier, the second input to the source of the signal to the dividend U, and the third to the output of the source signal divider Uj. The output of the summing amplifier is connected to the first input of the output generator 4, the second input of which is combined with the output of the source signal separator and the output to the first input of the frequency measurement unit 5, the second input which is connected to the output of the signal-divider source via an invertirucadium amplifier b, and the output is connected to a subtracting input of the summation unit. In the proposed device, two channels can be controlled by the output generator 4: fast, in which the signal divider Uj is directly connected to the generator , and the signals are divisible and divisible (and, through matching amplifier 3, s), including blocks 1, 2, 5, 6, of compensation type, in which the control signals of the output generator of the dc current generator and summing preamplifier. The proposed device allows to increase the speed of the splitter device, while maintaining the high static accuracy of the prototype. The device operates as follows. The input signals U and Ug, (via summing amplifier 3) and U / j (directly) are fed to the corresponding inputs of the output generator. Under the action of these signals, the output generator produces frequently that {} and., UL, (: N. –Gt G –G .111 (are the proportional coefficients where kj and k 1 are k ≤ ω — the initial frequency of the output generator. High speed device is achieved due to the possibility of performing inertialess units 3 and 4 in the proposed device. Static accuracy is provided by the compensation part of the circuit, which, if there is a deviation of frequency f from the true value caused by changing the parameters of blocks 3 and 4, produces an imbalance signal. the signal is formed as a result of the comparison by the summation unit of the signals i. and and with the signal formed at the output of block 5, proportional to the product of the output frequency of the generator f and the signal U, j, and corrects the frequency f, affecting the generator input through blocks 2 and 3. A part of the device allows for the frequency f to obtain the following relation: with where k and l are the proportionality coefficients f is the initial frequency of the generator. Expression (2) is similar to (1), but due to the use of the compensation method, it is performed in the static mode of operation of the device more accurately than the expression (1). Thus, in the proposed device, it is possible to obtain high conversion accuracy in a static mode of operation and high performance in a dynamic mode. A positive feature of the proposed device is that the compensation channel can operate in a lightweight mode, since it only needs to generate a part (usually a small) input effect of the generator, the main part of which is produced by the fast-acting part of the circuit. The economic effect of the device is achieved by increasing its speed. The proposed device can provide input processing for several periods of the output frequency (one or two). In this case, the device becomes complicated slightly. - only a summing amplifier is introduced. Claims An output device with a frequency output containing a summation unit, the summation of the inputs of which are connected to the sources of the separable signal and the signal divider, and the subtraction input is connected to the output of the frequency measurement unit, the output of the summation unit, output generator to the first input of the frequency measurement unit, to the second input of the frequency measurement unit is connected via an inverting amplifier to the source of the signal-divider, which differs from In order to improve speed, a summing amplifier is introduced into the device, the first and second inputs of which are connected to the sources of the signal-divisible and signal-divider, respectively, the third input of the summed amplifier, which is connected to the output of the DC amplifier, and the output to the first input of the output generator, the second input of which is connected to the source of the divider signal. Sources of Information Accepted, but Attention in Exposure 1, Tychino K.K. Voltage Converters B Frequency, Energie, 1972, p. 31-36, fig. sixteen. 2. USSR author's certificate number 564640, cl. G 06 G 7/16 (prototype).