DE1438647A1 - Control circuit for an AC regulator - Google Patents

Description

8 tax e-trora circle for «a change · atroni controller

The invention relates to regulators that are powered by alternating current sources and that contain expensive semiconductor rectifiers, such as trinietors, and in particular control loop circuits determined for each individual controller are loaded Gates or ignition electrodes of the oleohritic ignition impulses feed changeable phase, in order to thereby the Strooflufl of the Change regulator IU of a laet.

The usual tax "tro" kreiee "iod su for this purpose usually so formed, has one in every half-period or in Every mrlode deo regulator emits a single short pulse, although even under certain conditions the pulse remains the same for a long time. bii ma end of the half-period last, be used, beieplelswelse if the controller sua Bpeleen an inductive load is used,

The aim of the invention is to "create an improved Iteuerttronkrels su eohaffen, by dan &% * effect" int "

809613 / 00B5

long impulse ** on "infected and effective whales" can be obtained,

The invention consists in a power supply circuit for an alternating current regulator, which contains controllable semiconductor gauges and which are provided at that time, the supply pulse for the rectifier is in the form of trains of power supplies with a thermal recovery frequency - slide in comparison zn represents JWcquenü the SpaisewaohsaXstromae high itt odor _t OETR in the form of long impulstn generate the währand from solohan Aßgelelwerden trains, and by means of oscillators, dl "in ai or more controllable Zaltpunktan represents Spaiaaspanniingsparioda mitttXs a voltage odar a flow type si! switched that or, respectively, of the «ο ine quanz, which stands like Fraquansi das iat odar In harmonlsohar B * / iahung zn her *

The invention urafaat welttrhin «inen waohSÄlatromraglar * represents a Stoueretromkreia of the training described in the above paragraph contains ·

The invention is explained below with reference to the drawing for example explained

Fig. L (a) shows sohematlaoh a neoheelstromregXer with an assigned SteuexOtromkr »!» and el * nw angeeohlosaanan load *

Flg. i (b) vereneehau shows the waehreletrooflufl duroh they do under swel conditions.

Πι »& (a) and a (b) show swel forms ve» ZUndiapulaan,

809813/0053

like β ie generated by common control circuits will· Fit,. 2 shows a control circuit according to the table

the invention. Fig »* # 5 # 6 and '7 aeigen wellenfor en * the de λ tax»

■ circle according to Pig,? ^ u ^ are arranged * FIg * 3 zelbt sohe lAtleoh a modified version «·

for a tax control group according to the invention. Fig. 9 (a) to 9 (e) show different wave forms «n» which are assigned to the control current circuit according to Fig. 3 *

Fits 10 and 11 show a further modified embodiment of a control circuit according to the invention.

The in Fig. 1 in sohe Atlecher For ^! The alternating current regulator 1 shown consists of two controllable semiconductor rectifiers 2, eg triple gates, which are connected in parallel with one another. The controller 1 is fed by an alternating current source and supplies energy to a load 3. A control circuit K is provided "which supplies the lines" a, b, o and d with ignition pulses for the ignition electrodes of the rectifier 2 "

Sine control of duroh the load 3 flto sending alternation stto it is done by changing the phase of the leading edge of the ignition " impulses with regard to the Spelseweohselstroi achieved. Xn Flg. 1 (b) shows the «upper wave for the condition« in which

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m 4 *

The "ignition impulses" are delivered early in each half-period * which leads to a relatively high proportion of the available output energy which is 3 sug "fiIhJ? t" while the under "waveform old condition shows the heart pul "is late train *" leads in every half-period, "as leads to a relatively small proportion of the external energy being fed to the load;

Fig * S (a) is there a single short impulse? «5, like ei® in it is common to know how to produce the flteutratro: krele 4 « and FIg * 2 (to) shows I pulte 6 »the up to the end of the The calving period is prolonged and "wa" under certain hens be an advantage, for example if the Dust 3 is inductive,.

For the practical implementation of the invention ge ■ · _ *! A jsweok given as an example shows execution & rt is shown in Fig * 3 a tax flow for a weehselst ^ o ragler «

The eteuerstromkrels is fed by a tfeetteeistFonaptile »yöhron with the weaheslstromzufuhr sum Regisr I * Sine OltiohrichttrbrUok«, which consists of four ai «iehrl6h $ ern imi to MRH _t is so outdtt« that it feeds the §tre o <nkreie and still Sfceu «rap * nmmg« n supplies a transistor VTi «

The transistor Wi is in a «> osxillaterstreiak contain «the one output iron number for a in d9s * wise manner "rxstugt"

809813/005 $ Bad on?

While the «greetings» part of every half-pearl of the dish · weohseletroraea is dl · Anod · either of the Oleiohriohtere MUS or the Oleiehrlohters MR * with reference to the positive · line of the Gleiohstro supply to a negative potential «and the transistor VTl is through the see resulting Baeieatro, which duroh a resistance Bl or " a resistor R2 flows, kept switched on. The collector of the transistor VTl is sioh at a potential about the same as that of the positive line, and an Olelohrlohtet * MR5 is polarized in reverse.

Under these conditions a capacitor 02 of de Oleiohetro charged via a resistor R6 and a decoupling is provided by a resistor R5 and a capacitor 03. The potential at the junction between the capacitor OS and the resistor R6 goes from a »negative value and builds exponentially in positive direction with a time constant of R6, C2.

When the apeise voltage a Bode of the half-perlode fills up to Mull, the transistor VTl is switched off and the capacitor 02 discharges via the rectifier mk5 and a resistor R *. In this way, an upper md · de «resistance H6 a voltage of exponential ^ !! tgee & nnform %» (indicated in FIG. 4 at 7) is generated »dl · has a repetitive frequency« dl · in phase it and equal to that Double"! the frequency of the food service (indicated in FIg * 4 bsi θ) is »

Θ09813 / 005Ι

In the absence of any other input from the Hei · c-in * β transistor Ψ £ 2 , ββ, 'η base © is always negative * and

diessr • üraneletör * Jlrd therefore in a more conductive state gghalteiu If, however, a control gate voltage is applied to connections e and f (positive line a connection f), then. wircl a resistance RlA © in © positive © Spammng aa the Ssaie frans is or a .VS2 created i, so that his Baelestro toi ®tnem

in the ifalfepeylod © is cut off »ar * walghem who through the resistance R14 hindurohgeh @ nd @ St ^ on ^ efews gXeieli äe-i du3? ch den v / lderet - nd Ηβ hindurohgehUenden 8tvo--« · CIe phase ies ^ a pointa can by springs d © r Aoplltud · der

mitigated v / era, go that duroh this dsap 'transistor VT2 on a reseibftresi Ptsnüst in 4 · half peflode absciialtet v.erder: kamio

A traiisii5-t © u 'VTjJ * a Tran »? © * · & tor Tl, θίζι ΚοηΊβηβ ·· · toi? C4 and a resistor E9 ßlnü ao arranged » umQ. they el · mn SperroSiSillfttw b: i? / ien, des "as long as f ^ ei ! Mutt, as long as the Βϋί-ifi S © 0 transistor VTl av..r" in & .i sufficient negative potential .It be on his request * is held

The tronk? Ice is so auigelti ^ t «that, vvmr the transit gate VT ?; is switched off, the base ie @ Transietor · WJ ^ Stro. is supplied via the resistor Kl , «as causes

when the lockout works, and when the transistor VTS is switched on, the basis of the Transietors VT3 held at the potential of the positive leadership world and thereby the blocking oscillator is kept in the idle state «

809313/0053

The "" v / would be, as shown in FIG let, the blocking oscillator in every semicircle at one point 9 wlrkBa flattened, deteen phase by changing the DC voltage * voltage at connections e and f can be changed to el * To create a train of 10 impulses that extend up close to the end of the semicircle continues 1 ea let a property of the barrier that the amputees place is reached » as soon as it is switched on, thereby avoiding an undesirable gradual build-up «

It is preferable to use the individual impulses of the I puls * To extend trains 10 by straightening and smoothing with the help of GIeiahriehtera? H7 and MR8 and capacitors C5 and Cö, see this in Flg. 3 is shown,

In this way the output pulses in each pulse can have a triangular shape, as shown in FIG. is divided, or fully smoothed, as shown in In Flg. 7 shown 1st.

If necessary, the generator of the toothed voltage can be changed in such a way that the pulse trains are generated once, twice or twice in each period of the alternating coil, and the blocking oscillator can be doubled or otherwise repeated at all times with the associated gate circuit The various blocking oscillators are switched on one after the other during successive periods of the iron de; a generator supplied sawtooth voltage «whereby the output impulses on your part

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to8® & »g« ansehXUeeen appear *

Hn stro-ntereis * in soft the trains of output impulses to sswöi pair ^j ®n from Ansehlttssaa iss 8, fow © üheelenden half-periods that appear 8p9iBeweettBeletP0.ee, is shown in Fig * 8;

tstmm * 8fci »© -tkreia works in the same way as the · -that ß ©" ββ S ¹ Ig · 3 it the following »Ateissäeruasen»

A part of the continuous current ta * ®is epeieendesi weohs ©! ^ Current "" is supplied to the Easiskreie des -Traneiafcore Ψ22 during the half-period, while weleh © !? d®r & ig or the 2Ü @e of output impulses are not required did .X pulse signals are suppressed.

As eraiehtlioh from Pig "8 iet _# @ is resistant over a line in @ iron Gleiohriehtsr the junction of the MR 3 and M% Ri5 to the dee B®cls nmsislstops VTS ge * leads.

The de. TraneiLsfcdäj · irp2 sugeführte Spftanuug is indicated in Figure "(a) at IX and while d r at 12" ngedenlet ^ n half period ₉ in the check of the SleiehriefafceF m 4 is in Spirriehtung under a bias, tine negative peak is generated .

A voltage, the a®r voltage Ii £ b.> -! Ioh _f , je ti ο oh is of opposite position, is transferred to the baöie of a translator · VT *

80S813 / 005S

Dl · by d ·. The saw tooth chip generated by transistor VTl and the components assigned to it is shown in FIG. 9 (b) at 12. The αloh resulting from the voltage 11 and the sawtooth voltage IJ combined * voltage? Ale in Flg. 1st illustrated at 14 9 (o) "allows * daa in the Kollektorkreie of the transistor a current HItSt * as shown in FLGT 9 (d) at Vj VT2, dt therefrom generation resulting uw from trains Iu vun output pulses only in alternate half cycles as shown in Fig. 1) (*).

A capacitor Cj is added * ä # * prevents ^ that a small pulse occurs «if the ^ panouisg 11 from Weilenfor.i according to Fig. * 9U) falls to the level Io and dl« sawtooth voltage 1? ge, iUß Fig. S- (i>) niötit has risen above the vision level.

The output of the translator V23 is connected to the terminals g and h of the transformer T1 and the output of the transistor VT4 to the terminals J and kc ^ a rrs-iafg ^ r.-ators TS

These two outputs can then T ^ ruatoi -Tcretromkrei « must be iiugefLUirt.

A further modified embodiment is shown in FIGS. 10 and 10, in which the input is smoothed by diodes C1, D2, j)} and JA and is smoothed by the Xondensaö & r Ci Gesamtstro.Jcreis dining Oielohstroiu

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809813/0051

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weeheelatromwelle via the resistors RB and RIl ting ·· held held * The resistors R9 and RIO hold transistors VT2 and VT3 during the transition period at the aiding and at the end of each half-cycle (e.g. over 5 ° 5 elngesahalt *

Various changes can be made in the Raiunea of the invention to be made *

809.813 / 00St

Claims (1)

Π, Jtt «a« petroiBkr «ie for Semiconductor sliding reveals fe ta "©! * Means" to generate 2tlndl-nptilft «n fit · the Gl« 16h? Loht «r in the form of fSagm from Bnpulntn mil *« in «r yi <« ö «rhol-irip;« fr «tiuenz _ä die
Sp «£ @ $ i« ®ohe »aiitrom * 8 hooh X pulses «αΐ # from « Glide ZUg $ n abgsl ^ ittt «» earth «and with üiife « inta oeziilafcore, which in sänen od @ i> several yellow s * ltjpunkb «n during the sp # i® ^ tpäimti ^ gep @ rlode tele of a Spiimung ori # r of a Sfcromee © ingssoh ^ Xtet the or "the" ine Wiad "? fetch" for * qu # ^ K has "des ¹ equal to the frequency of the Spüitevreehseletromet 1st. or isi u it stands * eteueretro'Tikreie near entitlement l _s i dae dtr ossilittor »ue a free I & taf6nd« n exists « 3. Control circuits according to claim 2, because a device is provided that the Apeiseweeheeletrom derives a sawtooth wave power on. 4. B ^ euerstromkrele nteh claim 3 _t zeieimet ^ that the 0Ug «js & hnKelle has a, which in Fhmse with the Frequens des and you double this Frequent cheats » 5 8 control circuit according to claim 3 or 4, characterized in that Know that the point in time at which the fiperroiiil-Jator is to be stopped by means of a beacon aieiohstronpotentiais is adjustable to the device to derive the SUge / ancestor wave is applied BATH 809813/005