SU394907A1 - DEVICE FOR CONTROL OF THYRISTOR-PULSE - Google Patents

Description

one

The invention relates to control systems and T-Christman transducers.

Devices for a control and a torch-and-pulse converter are known, consisting of a master oscillator, a pulse counter, a decoder and a control unit comprising a reversible counter and a switching element. However, such devices: do not provide discrete control of the ra: two-stage thyristor-mp-ul booster: transducer and non-contact automatic transfer from one control stage to another.

The proposed device differs from the known ones in that the OiHo is equipped with a coordinating element consisting of a sign trigger, a step trigger and a diode array. The input of the coordinating element is connected to the control unit, and the corresponding outputs are connected to a reversible counter AND switching element, the inputs of which are connected to the decryptor. One of the outputs of the decoder is connected to the coordinating element.

In the drawing, the preceding; a block diagram of the described device.

The master oscillator / is connected to a clock counter of 2 pulses, made in the form of a binary counter, ik and connected to the amplifier J, from the outputs of which the impulses are fed to the corresponding auxiliary transistors of the 1-pulse converter. The counter 2 pulses of -cb is also occupied with the decoder 4, which is a diode array. The outputs of the encoder are connected to the switching device 5, and the output 6 is connected to the coordinating device 7. The coordinating device is pulsed 8 and two potential 9 and 10 high speed outputs are connected with a reversing counter // control, which is a binary counter that is connected to the outputs to the decoder 4. In addition, the coordinating device is connected to two potential outputs with switching devices 5. Which outputs 12 and 13 control the corresponding rechargeable thyristors, and outputs 14 and 75 - power thyristors s Switching Converters. The control device 16, the potential output 17, is connected with the master oscillator /, the coordinating device 7 and the reversible counter //, and the pulse outputs / 5 and 19 - with the coordinating controller.

The device works as follows: M way.

The control device 16 for preparing the circuit for operation initially from the output 17 supplies a potential reset pulse to the master oscillator 1, the coordinating device 7 and the reversible counter // control. The generator / lock is locked, and the coordinating device feeds 5 switching signals to the switching device in the form of a personal code. In this case, the outputs of the decimator 4 are connected to the output: m 12 and 13 of the device 5. A reversible counter // by a reset pulse is set to such an initial state, in which the initial displacement between the output nmp, the pulse 1 and the decoder 4 and the corresponding output is provided a clock counter of 2 pulses, equal to the maximum of l and OM, is the value of.

When a device 16 is removed by a control device, a sat. Pulse; a race enters into the operation of the generator / that feeds the pulses with a given frequency to a clock counter of 2 pulses. In this case, the amplifier 3 receives pulses from the last trigger of the clock counter of the pulses, shifted in time one relative to the other by half the voltage of the voltage. These pulses are supplied to the respective thyristors of the auxiliary bridge. The output nm. Pulses of the decoder 4. tacles are shifted one: n relative to the other by half the period of voltage;; through the switching device 5 via buses 12 and 13 go to the corresponding rechargeable converter transistors. In this way, an alternate sequencing of the thyristors of the converter is provided, as well as a full preliminary reloading of the switching capacitor, which is necessary for the b-beam, and a lot of output at the output of the converter at the first regulating stage.

To further increase the voltage output of the converter, the control unit 16 on bar 18 is not passed through the coordinating device 7 and the bus 8 sends to the reversible counter / nm: pulses for a set of poses: neither. The counter // of its output is in its own state so that the magnitude of the variable 1 is between the output pulses of the decoder 4 and the cooTBeTCTByKJUUiMn output pulses of the counter 2 is reduced. When the counter switches to the state corresponding to the transition from the first step of control to the second, pulses disappear at outputs of decoder 4 going to switching device 5, and at output 6 of the decoder there appears a signal allowing coordinating device 7 to prepare for translation. t, in the control circuit to the second stage of regulation. When the next pulse from the control of its device 16 via the bus 18 Ha6oipa positions on the co-ordinate load device 7, then, before skipping this pulse on output 8, reverses

the counter 11 is connected with the binary code 1111 to the buses 9 and 10. At the same time, the coordinating device sends a signal in the form of a binary code to the switching device 5, while 5 the outputs of the decoder 4 are connected to the outputs 14 and 15 to switch to the power devices thyristor converter. A pulse delayed by the coordinating device for the time it takes for

0 of the switching operations, translates the reversible counter into a state in which the pulses 4 appear in the outputs of the decoder 4, shifted relative to the corresponding output pulses of the clock counter, 2 pulses and m-minimal. but

PA output 6 misses the response signal.

Thus the control circuit overruns

on the second stage of regulation. Next

The pulses arriving from the unratified device 16 via the bus / i: 9 sets of positions to the coordinating device 7 increase the offset of the output nanometers: pulsator 1B of the decoder 4 relative to the output pulses of the clock counter 2 pulses. As a result, the output voltage of the transducer increases.

If the transition from the first pei-yling stanena and the second from the control device 16 to the coordinating device 7 is received, the SIGNAL will go through the return bus 19,

0 JQ device 7, before skipping this signal on the output 8, reverses only the control counter, and the switching device 5 remains in the middle. Therefore, the control circuit in this case is not

5 goes to the second step of adjustment and the voltage at the output of the converter, with each OI of the pulse coming from the control device 16 on the return bus, is reduced.

0, -r

Subject and z o r ete and h

ycTpoiicTBO for controlling a dash-source-pulse1 s converter, consisting of a master oscillator, a clock counter of pulses, a decoder and a control unit containing a reversible counter, characterized in that, in order to improve the quality of regulation, it is equipped with a coordinate; {a triggered element consisting of a three-g-ger sign, a trnger stuneni and a diode matrix, and the input of the coordinating element is connected to the body, and the corresponding outputs with a reversible counter and switching element, whose inputs are Luce to the decoder, one of the outputs is connected to koTOpcio koordn.nirukltsi.m e.kemento .m.

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