SU607323A2 - Stepping motor control system - Google Patents

Description

one

The present invention relates to electrical engineering, in particular, to control devices for stepper motors, as well as non-contact motors of other types, and can be used in various automation devices as time distributors of pulses and frequency dividers.

According to the main author. St. No. 175551 is well known for a pulse distributor with the number of stable states characterizing the recalculation coefficient of the circuit (W +) containing clause 2. (J + i) provided with circuits of reversible connection of logic cells pairwise commuting in antiphase, where K 1,2,3. ... natural number of numbers

The number of stable states of this distributor is always equal to the number of cells, and, therefore, its counting capacity

K 2 (JV + 1),

P T 2 (Nn)

The disadvantage of this distributor is the small capacity of the account, which leads to the fact that the number of channels or cells of the distributor grows in proportion to the number of its distributors.

stable conditions - the number of cycles of communication ...

In order to increase the counting capacity of the pulse distributor by increasing the number of stable states in the proposed pulse distributor to the feedback circuit of each cell between its input and the elo. And another element is introduced with AND, with the AND element at its second input to the Common for all cells, the AND-OR-NOT auxiliary element, both inputs of each AND element that are connected to the outputs of the nafs cells, switching in antiphase, and moving to one of the inputs of the additional element AND of each cell connected by its second input with the output of the cell, comm. rusable in antiphase.

Such an implementation of the distributor with a given number of tt 2 M + 3 cells allows to provide a recalculation factor for the circuits. K 4 (W + 1), i.e., increase the capacity of the pulse distributor to

4 (UM)

A 1.6

Claims (2)

n decreasing, by the hem itself, the number of f.acjipe units of pulses with a constant number of switching cycles. In FIG. 1 shows a schematic diagram of a pulse distributor attached to eight switching cycles; in fig. 2. timing charts for output of distributor cells. The pulse distributor contains four main cells 1 - 4 and an auxiliary five-cell 5. Each of the main cells contains in turn a delay element made on a resistor 6 and condenser 7, transistor switch 8, a two-input logic element ll-OR formed by diodes 9, 1O and resistors 11, 12, Auxiliary cell 5 forms a logical edement-OR-NOT performed on ISIS diodes and a transistor switch 8. Diode 10 of each main cell is connected by diodes 19 and 20, which form cross-links, to the outputs of the main cells, and diodes 21 - s- auxiliary cell 5. The input circuits formed by the elements And capacitors 22, resistors 23 and diodes 24 are connected to bus Input A (for supplying control pulses for switching cells in conditional sequence forward) and Input B (for switching cells in reverse order). The distributor works as follows. With the supply voltage and bias IIj. (fig. 1) are open; c transitions to a conducting state; two nuts, for example 1, and 4 (fig. 2). Then, the keys of 8 cells 2 and 3 will remain closed due to the interconnection of cross-links through diodes 19, 2O and the key 8 of cell 5 due to the links through diodes 21 and cells 1 and 4. In this case, the control pulses of positive polarity are fed to the input A (Fig. 2) is provided passing through the input signal through the capacitors 22 to the input of the open p; key 8 cell 4 and to the input of the private key cell 2. The input signal passes through the capacitors 22 to the inputs of the public key of cell 1 and the cell keys are closed and 5 is eliminated due to aaKptiTOKty state of the keys of 8 cells 3, 2 and 5 with corresponding connections through resistors 23 and diodes 24. With the arrival of a control pulse The cell 8 cell 4 closes and the closed state of the cell key 2 is confirmed. After the key of cell 4 is opened, the cell key 5, which through resolution 23 and diode 24 allows the passage of the next input pulse through the capacitor 22 to its input. The open key 8 of cell 1 through resistor 22 and diode 24 also permits the passage of the next input pulse, through the gateway 22 to confirm the closed state of key 8 of cell 4. When the next control pulse is applied, the key of cell 5 is closed, and .d. A further sequence of cell switching is understood from the dat-raks-l eg 1 at the outputs of the cells (Fig. 2), where the signs on the lines correspond to the number; / cells In the same way as the above-described work of the distributors takes place when pulses are applied same by na polarity input B. The switching sequence bases puff cell is reversed. The implementation of the pulse distributor according to the proposed invention allows, by introducing an additional "grgeysh", to reduce the total number of circuit elements at the same. the number of cycles of commutation, t, e, simplify the device and increase its reliability. Claims of Invention A device for controlling stepper DBI-gapep according to ABT.St. No. 175551, about tl and h ay u and so that, in order to increase the counting capacity, it contains in the feedback circuit of each cell between its input and the element And, additionally, the element S1I with the element And on the second input and the common dp of all cells is AND-OR-NOT; both inputs of each element, And which is connected to the outputs of pairs of shuks commuting in a continuous fashion (| zaze, and the output to one of the inputs of the fully complementary element And each cell of the second input connected to the output of the cell commuting to the prototype) Information sources received in attention in the examination; 1, Copyright USSR SNNDETEPOSTBO № 175S51, CL.-H 02 R 8/00, 1964, t ; th o o i-U-LLLLLLLLU