SU615599A1 - Pulse shaper - Google Patents

Description

(54) PULSE FORMER

I

The invention relates to radio engineering and can 6ufb used in automation devices.

Known pulse shapers 1 and 2. The first of them contains thyristors, a return transistor, pulse transformers. pulse generator. The disadvantage of this driver is the high power of the applied transistors.

The closest technical solution to the invention is a pulse shaper comprising a master oscillator with a transformer output, power amplifiers made according to a bridge circuit on three stages; one of which is common and each of which contains two transistors in series with shunt diodes, and two output transformers 2. However, this pulse shaper has a relatively low efficiency.

The purpose of the invention is to increase the efficiency of the pulse shaper.

To do this, in the pulse shaping one terminals of the primary windings of the output transformers are combined and connected to a common cascade of power amplifiers, the control circuits of which are connected to the output of the additionally introduced frequency divider into two, and the other terminals of the primary windings of transformers are connected to two other cascades whose control circuits are connected to the outputs of the master oscillator, and the input of the frequency divider into two is connected to the additional output of the master oscillator.

FIG. 1 Prnntspialnaya electrical circuit of the driver impulses; in fig. 2 is a diagram of voltages at various points of the circuit.

The pulse shaper contains the master oscillator 1 with a transformer 2 at the output; Power amplifiers made by bridge circuit on transistors 3 and 4, 5 and 6, 7 and 8, respectively, with shunt diodes 9 and 10, 11 and 12, 13 and 14 ,. which form three cascade. Transistors 3 n 4, 5 n 6, 7 and 8 turn on V1.1, respectively, sequentially. Cascade transistors 3 and 4 common.

Claims (2)

The circuit has two output transformers 15, 16. The terminals of the primary windings 17 18 of the output transformers 15, 16 are combined and connected to a common cascade of power amplifiers made on transistors 3, 4, the control circuits of which are connected to the windings 19. 20 transformers 21. Its primary the winding 22 is connected to the output of the additionally introduced frequency divider into two 23. Other terminals of the primary windings 17, 18 of transformers 15, 16 are connected to two other stages performed on transistor 5 and 6, 7 and 8, the control circuits of which are connected to the circuit breaker kami 24 and 25, 26 and 27, respectively. The input of the frequency divider by two 23 is connected to an additional output of the master oscillator I, the main output of which is connected to the primary winding 28 of the transformer 2. The pulse shaper operates as follows. The master oscillator I generates bipolar impulses of rectangular voltage, the period of which is two times higher than the period following the output pulses of the former (Fig. 2a). The additional output of the master oscillator is connected to a divider frequency by two 23 without phase shift, at the output of which a bipolar rectangular voltage, period, is formed. which is equal to the period following the output pulses of the imager (Fig. 26). If common-stage transistors 3, 4 switch frequency divider 23 with the output voltage frequency, and transistors 5, 6 switch with the frequency of master oscillator 1, then the output windings 29, 30 of transformer 15 form the voltage shown in FIG. 2c. With the help of rectifying, diode diodes 31, 32, at the outputs 33, 34, voltage pulses are presented that are presented in the FNG. 2 (3 and e. Switching transistors 7, 8 in antiphase; relative to transistors 5, 6, a voltage transformer 16 is formed at the output windings 35, 36 shifted relative to the output voltage of the transformer 15 for a period of the voltage of the driving oscillator 1 (FIG. 2.). With the help of rectifying diodes 37, 38, the voltages shown in Fig. 2eg and H are formed at the outputs 39, 40. Thus, At the outputs 33, 34 and 39, 40 of the former, voltage pulses distributed in time are formed , the duration is equal to 1/4 of the period of their following. The invention includes a pulse shaper containing a master oscillator with a transformer output, power amplifiers made according to a bridge circuit on three stages, one of which is common and each of which contains two series-connected transistors with shunt diodes and two output transformers that are characterized by in order to increase efficiency, some terminals of the primary windings of the output transformers are combined and connected to a common stage of power amplifiers, the control circuits of which are connected to the output of an additional inputted frequency divider by two and the other terminal of the primary windings of the transformers are connected to two other stages, which are connected to the outputs of the control circuit of the master oscillator, wherein the input of frequency divider on two connected to an additional output of the master oscillator. Sources of information taken into account in the examination: 1.Certificate of certificate number 270054, cl. H 02 M 1/08, 1968. 2. Certificate of author No. 282514, cl. H 02 M 7/52, 1969. J3     I T J i-. I i   .Ut .u /  OCO OCO UOU vJC  . jfw r a y SS Sf Sf I: n