SU692020A1 - Pulse former - Google Patents

Description

(54) PULSE FORMER

Filled with transformer 1 with 2-3 tolls and 4-5 basic windings and 6-7 transistors. In the basic circuits of the generator, current stabilizing resistors 8–9 are installed, and the control transitions of the transistors are shunted by diodes 1.0–11. The input signal is fed to the base of the transistors 6-7 through the limiting resistor 12, One of the terminals of the generator power supply (in this case the negative) is connected to the power supply via the power supply - -. ..:;:.:;. ,

 A transistor KEY 14 with a bias circuit is connected in parallel to the ballast resistance. Rectifier 15 is powered from the output winding of the 16f generator, torus. The displacement circuit is formed by a resistor 17, a diode 18 and a ballast resistor 13. In the base circuit of transistor 14, a current-stabilizing resistor is installed. 19, the input signal (Fig. 26) is removed. from the output winding 20.:.;.

The device works as follows. -.:-: -: ---- V -.-:.;, -. Yri. Serve. On his input control yu-. signal tfgx. (Fig. 2a), for example, with a plus on the base of transistor b, transistor 7 is unlocked. and to the collector winding 3: plokhodyvavts part.napr. by ts.py plus istrn11ka Pityy.Niya, transistor 7, winding 3, diode 18 resistance 13 / minus power source. Besides . In addition, the base obbtk 5 also applies. a part of the control of the U-. Joint action: voltage source Ytani. leads to; that Gna..6bmovka generator including. i on. rbmotkё .16 nav.rdi: RS EMF in. Result. THIS TRANSISTS.o p 14 starts. Open (with current ij from rectifier G5 - fig.2v) This is in turn PE) YVODIT; to abduction .; To a Jaaprun: which is attached to the winding 3. HSSE of the wife on the winding 16 also increases, the base current of the transistor Va-14 grows even more and,: thus, the result. a positive feedback transistor 14 is fully open, ak. for the crook of 3, the power supply voltage is applied by counting the voltage across the open transistors 7, 14 and on the diode 18 of the bias circuit. After time t, the core of the transformer becomes saturated, the EMF on the windings, including the winding 16, disappears, the ig transistor 14 closes, eliminating the possibility of a sharp, increase TOKci through the transistor 7 (and 14), the transistor 7 remains arrested under control. Ug., and the transistor 14 is locked by the negative bias voltage generated on the diode 18 trksm, the protector | (: on the circuit + Up 7,3,18,13, Uj. With the arrival on the input transducer-g

L of the half-wave of the control signal of the other polarity, the transistor 7 is closed, and the transistor b is opened, the processes are repeated in a similar sequence, the core of the transformer is alternating. Duration of output pulses tndete ete 2Vd-Wjtar SOIKT

. . -n and 10;

where - induction saturation of the core. . (in Tesla):.

Uf | - Power Supply Voltage

, (in volts); . . Wjp number collector, bbm:. . current S; (2); / ... -.: S-aativative / c. Section. Core ./V ... ; ; (cm), - -....; -.-./:. ..; .. Thus, ohm, on; -intervals (t,) of the selection from the power converter. EfficiencyThe output is Osochr high as in the power circuit o.tsu resistors are bent. In the pauses Between pulses, the sweeping of the mass of the mass: it is extremely small on the power circuit, and it is determined by the losses on a 13S resistor. led; 1ND, which, like OVAL, HOSTED, is units of units, DalNeyshie o fp & KVi4eiitie Losses in the control circuit of the transistors 6,7,14; It is provided by known means using transistor switches with a high gain efficiency. -:

  Shaper can be used 3bvan: ;;. ; :, -. . .. -. . - as a regulated or stabilized rI; RD 11R: Inverter go to. The quality of the control system is a net-inverter. In this case, the dependence tf, 6m Un is inversely proportional. . . . - as a voltage-regulated or voltage-stabilized converter (in this case, the winding 20 is connected to the consumer via a rectifier and filter), and in the quality of the converter control system. Regulation stabilization vnokhodnogo; In this case, provide the voltage either according to the principle of frequency modulation, i.e., by changing the frequency yripas of the pro signal U or based on using the dependence of t on Un.

FIG. 2 shows a double frequency signal relative to the signal of FIG. 2a. The constant component at the output of the rectifiers connected to the winding 2.0 is equal to (Fig. 2).

Ub - tn g

Claims (3)

Where the output frequency is monopoly. pulses. Uf "- the maximum value of the output pulses; - as a frequency to voltage converter; - as a one-shot operating in a wide frequency range of the input signal; - as a null organ, with increased power with galvanically open outputs: The invention claims a pulse shaper, a magnetotransistor generator, for example, a Roeer generator, with ballast resistance in a ptani circuit and high windings, TL and H cj and tp by the fact that, in order to show efficiency and room: stability, it is equipped with a transistor switch and you are a direct switch, the transistor switch is connected parallel to the ballast resistance, and the control input of the mentioned switch is connected through straightened itesh one ye vyhs5dny with windings. . Sources of information taken into account in the examination 1.Shipillo V.P., Bulatov r.G. Computational semiconductor control systems for fan converters; M.-L., Energie, 1966, p. 42-57, 2. Stepanenko I.P., Fundamentals of theories of transistors and transistor circuits, M.-L., Energie, 1967, p. 448. 3. Sandler A.S., Sarbatov R.S. Frequency converters for controlling asynchronous motors, M.-L., Energia, 1966, p. 78