DE2037067A1 - Circuit arrangement for generating a high-voltage spark - Google Patents

Description

F-30 * '»6: L * Oi, 7 / 7Ο AKG / aga

l6. February ly / O

Sch & l.tungoanordrmns a * 3 Koc hrip «nnuiigsf

The present invention relates to a circuit arrangement to E r κ ο u j; uiig a HochfjpariauiiKn radio «, with a circuit

109007/0724

^BATH

the manner of a barrier · - odor Durchi'lußwandJ _f ers in which a transistor during the St roniflußphasG Quölle a low DC voltage such as the battery, accumulator * o 'ä. withdrawn energy stored in a Püclckopplungsübortrager and in the locking hmw. Passage of the Transistcra via a; Diode ± n a I'or "Jensator in SekundärkiöiD of Übertra ^ uErS; discharged wii * d, as well as with a spark gap lying parallel to the secondary winding of the transformer and riding mechanical ^ or electronic switches in the primary and secondary circuit of the transformer urid / ovl ^ ir .: base circuit of the transistor.

For example, for door gas fire engines, carburettor engines, gas stoves Ot dergi. known switching conditions, which are used to generate the ignition spark from a battery or an accumulator , the relatively high voltage for the ignition feed is generated by a transformer with an appropriate output ratio.

f? In gas lighters, for example, this leads to transformers with primary side 6 and secondary side 6,000 turns, what with the

10 9 8 8 7/0724

BAD ORJQINAL

The disadvantage is that -.- olclie tra.iisforms-torGii-auriial
because of ^one high 8olctmdärsi> ainiui g an expensive insulation is required - verhältnismäßig'groß, expensive and empfindlicJj
are.

When known. The ooco turns of the Sökundax-epule were wound with wires of diameter ε o »o5 to o _f o2 κ: ιπ * which represents a difficult technological problem and yet cannot prevent the ignition circuit from making data available for the gas tank Volume stax'k becomes a.

The invention is therefore based on the task of "a circuit that allows a reduction in the space requirements of the

enables.

Exercise i τ a-scJicnderv / eise has now shown that this task
can wcrdfüi dissolved üiit a ScIj.jItunp, "arrangement D" x "type mentioned above, the 1st characterized in that after Betätigui: g Ainet; Uni & chaltea-j. .vikuiulürkreIu in the Übertragura DEI-t!

Kondonrator »Squat Urzouguii'i dor · Züiidsjillen on the funJcen route is discharged via the primary winding of the 3 transformer, while the translator of the blocking oscillator of. the überi "ai; he. eloktrioch odir is galvanically separated.

109887/0724

ORIGINAL

The use of the parts according to the invention offers special advantages Switching arrangement for igniting the gas of a gas lighter.

The double transformation of the voltage across the same transformer when charging and discharging the capacitor ^ eruäß the circuit arrangement Among other things, the invention arises from prevention of the required gear ratio baii. the number of turns the secondary winding · and thereby to reduce dos Voiumens of the entire ignition device without increasing it would.

With the same dimensions as a previously known ignition carrier, the manufacturing costs of the transmission carrier according to the invention and - because of the stronger wires for the secondary winding - its sensitivity to raecixanic or electrical overloads and to material and manufacturing defects and tolerances have been reduced ·

Furthermore, the energy balance of the circuit arrangement according to the invention shows that, in the ideal case, an efficiency of 100% is possible, whereas with the known ignition sparks - again if the copper, switching losses etc. are neglected - only an efficiency of 50% can be achieved. This is a considerable advantage especially when using a battery as an energy source.

109887/0724

BATH

More i-Iei'lcmale ₅ VorfcsiLe and änwerKlungöSnöglichköiten of or "findungagcmäßan circuitry walk from the inferential description based on the representation of one-forth s Ausführungsbeispiuis the invention. ■

I): i ο attached figure shows a sound arrangement »ach The invention for a gas lighter.

The circuit in the manner of a lock civ .; ing er.3 iestciit atu ·.

dex 'energy source Q, your Ti'ansistor T dem Rüf.lckopnlungsübas "-trager U, the rectifier circuit C1, D in the basic circuit (l / lcklung L2) of the transformer Ü and from the ScIiJ elf schal tor TA, its three contact tongues TA1, TA2 and TA3, voxi denou TAD ale changeover switch is used, can be operated in accordance.

When the sliding switch TA closes, ie, Übargaag the switch tongueη ΤΛ1, ΤΔ2 and TA3 from the output division 1 to the switching division 2 »begins a current flow phaao doe Tranüiijfcoru T, to which aich jev / eila, as soon as the saturation; the ßrückluMtplun, '<i., about the wearer Ü is reached, ν ino Spor-rph & fso an ^ ohLLöü b ,

nd the · which is stored in your transformer Ü. «Dncf ^ I β - after the Prijiaip ciihos Sporrdchv / ingors - will load into the capacitor 01 nut" . Uev Koxidunsatoi · Ci is therefore periodically to «Ln» jt; iU.Hpruc: htiii 1 dom {Jb, _ 'r';i;?;:.',Ui);;.' j ■: ·: riuil tfi-l. ·· ti gogoiiüböi- der Hufeti, ii i.:ii »; mij.üxt ^ ti f.-riicih I .; Sl -> UHiIXL ₁₁ V. ■ 1: lii'iiij Lfi'lcn.-

1 0 9 ti H Il 0 7 2 4

BATH ORIQINAL

-G-

They apply there

L ₁ = ü L s ü ¹ ü »U ₁₁ , where

U _c = voltage at Kov: donsator C1.

U " ~ voltage of the energy source Q

ü ¹ α Überse tssungsverhäitixia w2 / v / 1 of the transformer Ü and

ü "as tension overheating due to the jerk-shock effect

bedcutor »t

Through the transition of the contacts of the slip switch TA from the switch 2 * to the switch position 3 v / earth of the trai aisfcor T via 'ΓΑ1 and TA2 from the primary and the feedback »
lu.ngswicklu.ug L1 b2A /. L;) as well as the condenser C1 from the secondary winding 1.2 of the transformer and the diode D galvanically isolated

In the Seiu ltütailung 4 of the switch discharges TA3 I "of the capacitor C] over dia primary winding of the transformer Ll _s
wodiuoh eiiui zur Ei'Ko ^ gung & iixefj Zünd.funJccris at the par & lloi zu flor fiekundärv / Lcklung IP. lying spark gap F from rnLchitncl height ;; - voltage ürittitölit.

I09Ü8 7/0724

The following approximation equations apply;

ζ c1

U = Ü ' ² U "U _n ζ Β

nh the circuit arrangement according to the invention is used for the second two-fold utilization of the transformer b ^ w. the 2mcJigoii voltage transformation according to the tJbei "carrying ratio w2 / wl de" overx * agerß Ü results at a given Bat- %

teric and ignition voltages a winding ratio / liältiais ü '= / of

ίχΓ

ü '

^U B ^Ü "

a winding ratio of

U _r

boi the Zundtranaformatoren for the known ignition devices. |

The capacitor C2 lying parallel to the diode L), for which a «? In comparison with the charging condensate ov 01, the small capacity is sufficient, serves to protect the diode D from excessive voltages.

109887/0724 BATH

¥ £ e without further can be seen, the "StoiiJ.eifeclu & llter Ta can be fully or partially by elektrc-iii-selie switch *, like
Transisi.oren and / or diodes, etc., were replaced , with their switch insert derived from some Refer on.ssügnaJL - the circuit shown -, for example, the state of charge of the capacitor Gi. can be"

109887/0724

Claims (2)

- 9 - PATENT CLAIMS .J Circuit arrangement for generating a high voltage spark "with a circuit like a blocking or through-flow wall, in which the energy taken during the current flow phase of a transistor" in a source of low direct voltage "such as an operating battery or the like" is stored in a feedback transformer and in the blocking or biarching phase of the transistor is discharged via a diode into a capacitor in the secondary circuit of the transformer, as well as with a spark gap lying parallel to the secondary winding of the transformer and with mechanical or electronic switches in the primary and secondary circuit of the transformer and / or in Base circuit of the transistor «characterized in that after actuation of a changeover switch (TA3) in the secondary circuit of the transformer (Ü) the capacitor (Cl) is discharged for the purpose of generating the ignition voltage (CJ) at the spark gap (F) via the primary winding (L) of the transformer _f while the transistor (τ) of the blocking oscillator of de m transformer (Ü) is electrically or galvanically isolated 2. Circuit arrangement according to claim 1, characterized in that it is used to ignite the Gas from a pocket or table lighter is used. 109887/0724 Blank page