SU415802A1 - PORRUPTED VOLTAGE CONVERTER-K WITH AUTOMATIC SCALE,:; 'Jl -c- ^ g: ^ | ^ v ^ i, 4 s ^ LJv [| r.V P T g - Google Patents

Description

one

The invention is used to connect a digital computational manshna with an object or analog computational terminal, the output signals of the OTOipbix vary over a wide range; In addition, it is used in computing systems but measuring systems.

A bit-wise converter with an auto-scaling code is known that contains a synchronization device, a pulse distributor, a block of coincidence circuits, a block of gates, an order counter, a block of input resistors, an operating mode trigger.

However, in a known device, the zoom is switched by a command from the outside, rather than automatically, inside the device. In addition, the known converter (the driver has more. Accuracy and speed.

In order to increase accuracy and speed in the p-offered transducer, the outputs of the operating mode trigger are connected to the input of the synchronization unit, the outputs of which are connected to the parallel converter and the distributor of pulses, the outputs of the latter are connected to one input of the coincidence circuit, the other inputs of which are connected to the outputs the valve block, and the outputs to the inputs of the input resistor unit, an order counter, an operating mode trigger, two high-order bit converters, the outputs of which are connected to one moves the valve block, the other inputs are connected to the outputs of the zero-bit-wise transducer body.

The drawing shows a block diagram of the proposed device.

A trigger / work mode, which serves to specify either the choice of the scale or the bit-balance mode, is connected to the synchronization unit 2, which consists of a generator of pulses and coincidence circuits. Block 2 generates pulses in accordance with the specified work. The outputs of the synchronization unit 2 are connected to the distributor of 3 pulses and with a parallel converter 4. The outputs of the distributor 5 pulses are connected to one of the inputs of the matching circuit of the block 5 of the matching circuit, and the other inputs of these matching circuits are connected to the outputs of the valve 6. The outputs of block 5 of the matching circuits are connected to the inputs of the 7 order counter, trigger / operating mode, block 8 input resistors, which is for selecting the scale, as well as with the first and iBTOporo bits 9 and 10, respectively, of the bit converter 4. Outputs of the first bit 9 is connected to the inputs of the valve block 6, the inputs of which are also connected to the outputs of the zero-body 1 of the bit converter 4.

At the initial moment, the trigger / mode sets the selection mode of the mash-tobacco, and the pulses from the synchronic unit 2 are fed to the distributor of 3 pulses. impulse distributor 5 sets to "O first z.na; kyyi bit voltage-code converter (first bit 9) and sets to" 1 (KEY makmalnogo input resistance block 8 input resistances. As a result, the input voltage on; the input of the first is 1 bit 1 da with a minimum transmission coefficient, i.e., the scale is lower.

If the input and discharge is positive, then the output of the zero-body 11 generates a signal on a single 1 output, if the input voltage is negative, the signal appears on the zero output of the zero-organ 11. The outputs of the latter are connected to one of the inputs of the gates of the valve 6. On the second inputs of the valves serves; signals from the trigger outputs of the sign bit 9. If the input voltage is positive, the next pulse from the pulse distributor sets the second bit 10 of the converter 4 to one unit. If the input voltage modulus is greater than the compensation voltage module from the bit converter 4, then the output a null organ 11 appears on a single output.

In this case, the scaling input solvoltage is selected correctly, and the third pulse from the distributor 3 volts sets to "1 trigger 1 operation mode, which switches the synchronization unit 2. The impulses from this block enter the circuit of the bit converter 4, as a result the process of the usual bit pattern of the array, vania begins, and in the second bit the “1.

The results of the conversion of positive voltages are obtained in the direct code, then the unit in the second section means that increasing the scale cannot be - the scale is chosen correctly.

If the unit is set to "1 second bit | A zero-output signal appears at the output of the zero output, then the input voltage modulus is less than the compensating voltage modulus, i.e. it is necessary to increase the ma | 0scale.

The third impulse from the block .3 of the distributor I1 is multiplied: to enter the corresponding co-ownership scheme of the block 5 matching schemes, a signal from the output that resets the main input resistance key and sets the next one to the next, twice smaller, input resistance. It also adds one to the counter, 7 times. Further, the operation of the circuit is analogous to that described above.

If, after turning on the last, least resistance, it appears that

the input module is smaller than the component of the compensating voltage, then the last one: the pulse from the pulse distributor is set to “About the second time | p d 10 and switches the trigger 1 of the operation mode. If the input voltage module is larger than the compensating charge module, then the second discharge trigger is not reset. Thus, a positive input test is performed.

If the input voltage is negative, the result of its measurement is obtained in the reverse code. In this case, a sign of the need to increase the scale of the ba is the presence of "1 in the second bit. Pa: The circuit bots with a negative input voltage similar to the previous one. However, in this case, the sign bit trigger 9 is in the "1" position and turns on the other gates of block 6 (Vnt.

If the input voltage is divided into a p-range and introduced p-input resistances, then the relative error in the measurement in the smallest range is reduced by a factor of-1.

The proposed device provides higher conversion accuracy compared to converters with a large number of bits without an auto-biravani circuit.

Subject invention

A bit-sized voltage-source auto-scaling transducer containing a | Bit-specific converter, timing synchronization device, an impulse distributor, a coincidence circuit block, a valve block, counter order, an output resistor block, an operating mode trigger characterized by

that, in order to increase accuracy and speed, the outputs of the operating mode trigger are connected to the input of the synchronization unit, the outputs of which are connected to POS (the regular converter and pulse distributor, the outputs of the latter are connected to one input of the matching circuit block, the other inputs of which are connected to the outputs of the valve assembly , and the outputs - to the inputs of the input resistor block, order counter, trigger

operation mode, two high-order bits of the bit converter, the outputs of which are not connected to one input of the valve block, the other inputs are connected to the outputs of the p-converter converter.

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