SU486307A1 - Impulse voltage regulator - Google Patents

Description

the coils 9, 10 of current transformers, the trigger on transistors 11 and 12, the power supply of which is connected to a parametric stabilizer made on the resistor 13 and the zener diode 14, the control and control unit 1, its body 15, the output of which through resistors 16, 17 connected to the bases of the transistors 7, 8, an output filter consisting of droplets 18, a diode 19 and a capacitor 20 connected to the load 21.

The windings 22, 23, respectively, of current transformers 2, 5 are connected to the trigger inputs on transistors 11, 12.

The device works as follows.

The open state of the control transistors 7,, 8 and the closed state of the control transistors 1, 4 (pause) correspond to a positive control signal from the body 15.

In the pause, the transistors 7, 8 are open, the transistors 1, 4 are closed, currents are flowing in the windings 9, 10 of the current transformers 2, 5 and the transformer cores are remagnetized. If at this the transistor 11 of the trigger is closed and the transistor 12 is open, then if the control signal is removed, the state of the transistors of the trigger will cause the rubbing of the transistor 7, the current in the winding 9 of the transformer 2 will decrease, on its winding 3 induced by E.DS. The effect of the base current of transistor 1, which, as a result of the avalanche-like process, is unlocked and transmits a working pulse. The core of the transformer 2 is reversal in the forward direction. The core of the transformer 5 continues to re-magnetize in the opposite direction until the magnetic induction reaches saturation under the action of the voltage of an additional source applied to its winding 10 through the open transistor 8.

When a signal is received from the Univol, its organ 15, transistor 7 is unlocked, transistor 1 is closed, and the current pulse through the latter stops. Simultaneously with the winding 22 of the transformer 2 to the input of the trigger receives a pulse that causes the switching of the latter, i.e., unlocking the transistor 11 and locking the transistor 12.

Upon subsequent removal of the control signal, the transistor 8 is locked, a working current pulse passes through the transistor 4, but the end of which from the winding 23 of the transformer 5 to the trigger input b receives a switching pulse. Then the cycle repeats.

Thus, alternating switching of the control transistors 1, 4 with a frequency equal to half the operating frequency of the stabilizer is provided, and the time of reverse reversal of the transformer cores is equal to

the duration of the period of the operating frequency of the stabilizer.

Subject invention

A pulse voltage regulator containing a main regulating transistor, a current transformer, the primary winding of which is connected in series to the emitter circuit of the specified transistor, and the secondary is connected between its base and emitter, an additional regulating transistor with a current transformer connected in parallel with the main transistor, collectors which are connected to the terminals of the secondary windings of the current transformer, the second terminals of which are connected to an additional power source, trigger The aperture, whose inputs are connected to other secondary windings of current transformers, and the outputs, through resistors to the bases of control transistors, is a comparator and a control organ, characterized in that, in order to simplify it, the trigger supply circuits are connected to the output of an additionally entered parametric

a stabilizer connected to the aforementioned additional power source, while the output of the controlling organ is connected through resistors to the bases of the control transistors, the emitters of which are connected to

trigger transistors emptter and common.