SU769639A1 - Device for checking ferrite storages - Google Patents

Description

The drawing shows a block diagram of the proposed device.

The device comprises a pulse generator 1, a control unit 2, an interdiction element 3, a switch 4, an indication unit 5, a power supply unit 6, a short circuit detecting unit 7 for the windings of the matrix.

A controlled ferrite memory array 8, having an output 9 and an input 10, is connected to the outputs of the device. The device also contains series-connected winding resistance measurement unit 11, made in the form of a DC bridge, amplifier 12 and switch 13.

The device includes an additional display unit 14, made, for example, in the form of a local control unit 15 connected to the printing unit 16.

The input unit 11 is connected to one of the inputs of the device, the output of the key 13 to one of the inputs of the element Ban 3.

The first and BTOpofi outputs of the element Ban 3 are connected respectively to the first input of the switch 4 and one of the inputs of the additional display unit 1, the other input of which is connected to the output of the display unit 5, and the output to the second input of the switch 4.

The device works as follows.

Generator 1 produces pulses with a certain frequency. Depending on the operation mode of the device, these impulses go through the block 2 through the element Ban 3 or the matrix 8 being checked. The state of the switch outputs is displayed with the help of the display unit 5, which indicates the sequence number of the windings. When detecting a winding break, the pulses from the generator through block 2 and element 3 and the closed contact group of switch 4 arrive at the matrix 8, and through the element 3 of the inhibitor 3 - to start switch 4. In case of break of the winding, the start-up pulses to switch 4 stop in this case, in the element 3, the signal is generated, according to which unit 15 is allowed to print out the broken winding number from the display unit 5. After printing the broken winding number in print unit 16 in block 15, the signal Kon is generated The print end of the line that switches switch 4 to the next state. Further, the work process is repeated.

When determining the short circuit between the windings of the matrix devices operates as follows.

The impulses from the generator 1 through block 2 and the element Ban-3 arrive

a switch 4, the state of which corresponds to the number of the winding being tested and is displayed by the display unit 5. In the mode of determining the short circuit between the windings, the matrix 8 is supplied through the contact groups of the switch 4 with high voltage from the power supply unit 6.

From the output of matrix 8, the signal arrives at block 7. It in the case of a short circuit in the matrix generates a signal to the element Ban 3, which stops the supply of start-up pulses from generator 1 to switch 4, in addition, the element Ban 3 generates a signal allowing output 15 to block numbers of the faulty winding from the print indication unit 5. After printing, the number of the faulty winding in the printing block 6 in block 15 a signal is generated. The end of the printing line, which switches the switch 4 to the next state. Further, the work process is repeated.

When determining the resistance of the windings of the matrices, the device operates as follows.

Pulses from generator 1 through the block

2 and the element 3 of the prohibition enters the start of the switch 4, the state of which corresponds to the number of the winding being tested and is displayed by the display unit 5.

In the measurement mode, the resistance of the windings of the matrices is sequentially podK (G1 is pushed by the contact groups of the switch 4 to the block 11.

In the event that any winding resists beyond the tolerance limit, a signal appears on the output of the switch 13, which acts on the element Ban 3, thereby stopping the start-up pulses on the switch 4, while in the element Ban

3, a signal is generated allowing the unit 15 to output the number of the faulty winding from the print indication unit 5. After printing the number of the faulty winding in block 16, in block 15, a signal appears. Print line end line, which puts the switch into the next state. Further, the work process is repeated.

The proposed device by automating the process of controlling the windings of the matrix reduces the complexity and significantly increases the reliability of the control.

Claims (2)

1. USSR author's certificate 354473, cl. G 11 C 29/00, 1970, 2. USSR author's certificate 5 No. 531196, cl. G 1.1 C 29/00, 1976 (prototype).