SU1282297A1 - D.c.voltage converter - Google Patents

Abstract

The invention is based on electrical engineering and can be used in secondary power supplies of radio engineering, automation and computer equipment. The goal is to increase speed and simplify. For this purpose, in the converter containing inverters 2, 3 and linear stabilizer 1, output transformer 6, control transistors 9, 10, master oscillator 17 with matching transformer 18, locking transistors 15 and 16 are introduced, baso-emitter transitions which are connected in parallel to bazr-emitter junctions of control transistors 9 and 10, and the collectors are connected to the emitters of transistors 2 and 3 of the inverter. This device performs forced locking of power transistors by fully opening the locking transistors .. 1-yl. (L

Description

At the same time, the transistor 16 is connected to the base-emitter device and allows the connection of the transistor 16 to be connected to a negative transistor with a small allowable junction voltage from the winding 14 and, on the junction, the transistor 16 is open, . In addition, it protects from 10 and 3 locked up. Random voltage surges on a pe312822974

On the base-emitter of all transistor windings of the output transformer,

device ditch. reference generator with matching

a transformer, some secondary formulas of the invention, whose coils are used as the mentioned control devices of a constant direct current, an additional secondary winding containing a linear stabilizer with the outer ends connected to

mash and inverter, the collectors of the power collectors of the control transistor transistors of which are connected to the center and to the output

the input of the linear stabilizer and the first 10-linear stabilizer, about the first input terminal, and, moreover, with the aim of

tty input output is connected to a medium speed increase and simplification of the output of the primary winding of the output, they are equipped with locking trans-transformer, the secondary winding of the transistors opposite to the control

which are connected to output transistors of the conductivity type, badam, control transistors, base-emitter, the transitions of which the sub-emitter transitions are connected in parallel with the base-emitter

through resistors to the control transitions of the control transistors,

windings, and emitters - to the bases, the collectors are connected to the emitter transistors, whose emitters of 20 frames of the corresponding power transistors are connected to the extreme conclusions of the primary authorities.

Claims (1)

Claim A DC voltage converter comprising a linear stabilizer and an inverter, the collectors of power transistors of which are connected to the input of the linear stabilizer and the first input terminal, and the middle terminal of the primary winding of the output transformer is connected to the other input terminal, the secondary winding of which is connected to the output terminals, control transistors, base-emitter junctions which are connected through resistors to the control windings, and emitters to the bases of power transistors, the emitters of which are connected to to the extreme terminals of the primary winding of the output transformer, the master oscillator with a matching transformer, some secondary windings of which are used as the aforementioned control windings, the additional secondary winding is connected to the collectors of the control transistors by the extreme leads, and the middle terminal to the output 10 of the linear stabilizer, characterized in that, in order to improve performance and simplify, locking transistors are introduced into it. opposite to the control 15 transistors of the conductivity type, base-emitter. the junctions of which are connected in parallel to the base-emitter junctions of the control transistors, and the collectors are connected to the emitter of 20 frames of the corresponding power transistors.