SU1330719A1 - Device for controlling transistorized bridge inverter - Google Patents

Abstract

The invention relates to electrical engineering and can be used in high-power secondary power sources. The purpose of the invention is to improve the weight and size parameters. By introducing the integrating RC circuit 22 and supplying the transformer 7 of the power amplifier with two additional windings 20 and 21, the output voltage quality is provided. 2 Il. (L I and L & 00 CO O G),, "..." Cos V TTi W t y. "Cos TTi J

Description

one

And the acquisition of rvrniii: nTt: H to e. Yu.ktro-TtxHUKG and Itpe are used for use in reproducing micropaths from the second half of the 1st; ) 1kiv sinusoidal

for example 1.

The purpose of the nchobodyn yjiy4nu; iiiie mass and dimensional indicators

FIG. 1 ICHODRAINP |) unc5ional1 - ntl scheme yi gro: 1CT; a, nl. 2 -

Nromein:. illustrating his work

-: Tris 1 pO s. content g block 1 formirip: ai lI lIiylc) in low-frequency 2 and J and (m - .. frequency-1 and 4 and 5 outputs, nepToni amplifier 6 of power I, j; - ; -chym-tachpfopmatorom .fi .1 (1 tk;) mi 8 i), second questions 10 and 11 and, onnolny-G..ot.-am | 1 12 and 13

; riilcib;): .M.TTOpcr-l 15 With Noren-gkapi 16 II 17, liTopir-iHbi- .ch-lmi | 8 and) At 1, others | -K :)

 I) and I.L., 1) integrate1: hanks 10, 11, 1Н and 19

g pan-and 1C frames interstacter on filter 24, ILMtaet (MIC TD U cpm

 I Y (

iijia-jHbie n of k o h h II, i: o t and c I fMM et p 114 --- .ii; v fn, c (1i, - i};), Their h L .41 are correspondingly . : -: - Whether iMd o 11; | / rlzhs - -, 1 G Ome TOIV-1J C, choke and ubviric g jiBC Lara-h 1 1H1e nos. Ps -I, -..., - Fchg , 2c, d) - - l / gag-h latitudinal in and, 1 - S iai),

s / t p

Do

L r- i 4i: and |; -1Сп :: occistotye. I. fi i.; O: n.d feed of tea im;,; ; ; V chilikiots nl.h-11 J) G1.ds. Shuts with Ushgitol - U Wiralchslp ;; .dy usis ..,: .- :, o:, l,.;., „V L: - :. 1, .. g, DL1 LM j.- :: .ЛЫО. RAN L, L. H.: .. r |. H LH are controlled by m-jiiipiTi), iMii pulses of different lengths, with 1 3: 1: 1 occurrence; lol t oshil sschy (magnetic i: ji Oi 3 of the transformer 15 IC, / d;, which is O11p; de: 7th is a gab1111, sl 1, r1 of the spruce of this transformer "Uchg;: 1: -1G, flow rate (dit to

The increase in the number of turns in a hitch is 16 liters 1 /, and the increase in parasitic e; mkos- 1 si - to the output of the T1 fronts of unformable pulses and the deterioration of the output voltage of the inverter.

To compensate for the low-frequency component of the magnetic flux, the device uses additional (1 windings 20 and 21, to which LVi pulses and a pn voltage voltage U, Fig. 2e) are supplied. The pulses are removed from the winding 12 of transformer 7 and have the same shape as and impulses Uf.j, only without a constant component. Voltage is produced by circuit 22 when applying for its :: course of impulses with an additional 3. At the same time in the magnetic conductor i: c transformer 15 winding 20 1G Llysst triangular magnetic flux (Fig 2g), and the windings 21 are the magnetic flux Fg; (FIG 2z) with form-M1: 1Y pa 1aG olic character. Shown in Fig. 1 winding additional windings 20 and 21 provides winding; 1: 1G: G-raichsskoe summation of flows

20

F,. Resulting in

five

The recurrent magnetic flux Φ, - (bit, 2i) has a form very close to .1 riH3KO4iiCTOTHou composition (lt1tseG1 G.-: and xspelliruet the latter.

Wuxi.) En1) 1e and galvanically developed -. low frequency and 1; frequency control signals. the benefits of amplifiers 6 and 14 come ij transistor circuits; Inverter 23. The filter 24 outflows from the output voltage of the C 25 inverter (Fig. 2k) to the smooth component U (Fig. 2n).

The proposed device is characterized by improved mass and size indications 1 1-.:1 mi due to the skill of 1, the shadow of the frequency of the transflator and allows to obtain a better spectral composition of the output voltage of the inverter by improving the shape of the control signals.

50

Ф о 1) м у п a

acquisitions

A device for controlling a transistor bridge inverter, comprising a pulse shaping unit with two low-frequency outputs serving to form two para-phase low-frequency pulse sequences, and two high-frequency outputs for 1

MnpoBai ii.vJ of two 11 aphasi1) 1x t), Icok (total shnrot11o-maul; severity of pulses with alternating sin and (1 - sin) modulation frequency with low frequency signals, low frequency and high frequency outputs of the pulse shaping unit respectively connected to the inputs of the first and second power amplifier containing a transformer, the output and the secondary windings of which are intended to be connected to the inverter transistors, and a common bus that is different in order to improve the weight and dimensions

Editor E. Kopcha

Compiled by V. Mironov

Tehred I. Veres Proofreader L. Patay

Order 3590/55 Circulation 659 Subscription

VNII1Sh State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

nineteen

inter-interrupt (her K (;; - circuit, in each amplitude: those powers the transformer is equipped with two additional windings, the first and second additional windings of the transformer in the first power amplifier are connected to the common bus by the same name, in the second bar; shitrle power - with opposite terminals, not connected to the common board of the first additional, windings of the transformers of the first usi.: the power switches are interconnected, but not connected

to the common bus, the terminals of the second additional windings are connected via an in- and integrating HC circuit.

Claims (1)

Form of invention A device for controlling a transistor bridge inverter containing a pulse generating unit with two low-frequency outputs, used to form two paraphase low-frequency pulse sequences, and two high-frequency outputs, used for form3 307 13 modes of two paraphase high-frequency latitudinally-pulse-motivated pulse sequences with the laws of modulation of the form sin and (1 - sin) alternating with the frequency of the low-frequency signals, the low-frequency and high-frequency outputs of the pulse-forming unit are connected respectively to the inputs of the first and second power amplifiers containing the transformer, the outputs of the secondary windings of which are intended for connection to inverter transistors, and a common bus, characterized in that, in order to improve overall dimensions, it sleeps it is integrated with an RC circuit, in each power amplifier the transformer is equipped with two additional windings, the first and second additional transformer windings in the first power amplifier are connected to the common bus by the same terminals, in the second power amplifier - by opposite terminals, the first additional terminals not connected to the common bus the transformer windings of both power amplifiers are interconnected, and the leads of the second additional windings not connected to the common bus are connected via an integrating RG-circuit b.