DE1773033C3 - Control circuit for thermostats - Google Patents

Description

lon of the bridge and with the emitter at Wr hin- y ~ . could.

The king's point of the two. Zener diodes connected in.; Cr Disclosure clirift! 52? 3? 4 711 an old man at the four collector of the first transistor; mi: re η r.icht vorpubliclitcn registration was heder Base of a second transistor and its 1-.niit-ail'-cmc stabilized Rcyelschaltungsanordniini; voiler connected to the base of an end pin transistor that is ordered from three transistor stubs is, in the collector circuit of which a heating coil 60 is arranged, the two last transistor stages with transistors is. and in which the first transistor has the opposite conductivity type as the first opposite conductivity type compared to the 1 ransistorstul'e are coated. The Lingangsstufe two other transistors is. is controlled via a bridge circuit. Particularly high demands are made on the two branches of Zener diodes and one in one Constancy of the carrier frequencies in the carrier frequency system made of stones. Often all in a system resistance are arranged as temperature sensors. in the existing carrier frequencies of a Grundirc output circuit of this Regclschschaltanordniing lies Ljucnz derived, which in turn means a basic heating winding of a thermostat. Furthermore

I 773

* 4

ι ins power transistor

this arrangement is also continuous rule - the loss _{solving hypertension} α dgrC | iloufen,

en on «de» amplifier in e wa ⁵ ™ * Λ * _jne überempimuur

TdS magazine .Elck, nik «1067 HeIt 12 where» ndemTnin «.ior» ed jl'jh «n ^. ^ ^ _U

"Mim, this arrangement also continuous control characteristics the Verlustlolslunphypj _DGRC | iloufen,

^W air on «de» amplifier in e wa ⁵ ™ * Λ * _jne überempimuur

¹⁰¹ XTdS magazine .Elck, nik ", 1067, HeIt 12. where" ndemTnin ".ior" ed jl'jh "n ^. ^ ^ _U

especially p. 3fi7, Fig. 8b, a temperature χ on 12 to 15- C occurs, l, "" J _Tmns fetor vol 'circuit known, which is from a bridge circuit 5 Regelsehw.ngung ^ odc M _{that w8h nd}

E consists; with the ZenerUiodes connected through in two branches or, ^v ° »Ö, ^r ' _v ernachUiss.gbar

S in another branch of the bridge a temperature, this ZeU a loss ic «^ ρ ^^ _become

Your resistor is arranged In one of the remains small D? "*** ^c ™ _{d the} heating winding of the

S a temperature low resistance is arranged in a further branch of the bridge. In one diagonal of this bridge the measuring voltage is ab- ^ Af f

i st ic «^ ρ ^^

remains small D? "*** ^c ™ of _the heating winding of the control swings to ö ^ ^ _{dflß d Ge}

Af fen ^l ° thermostat itself ^tern ^ "* _arn quartz through

⁸ We erhin from the German explanatory document nauigkeit der Temjjenjtuw g _{; r ()} . ,, Υ π S a two-point controller with a bridge - these measures "'^^' resistances are known, in which a two-stage equal
! form-coupled amplifier is used, which is included in
? S stage a «pn and in the second stage

accuracy of Tjjj g _{; r ()} . These measures "'^^' resistances can be temperature-dependent Wi _{den <wobe} i be.

Hß ⁰ ^ X. · _Ren the control accuracy good _dge "with

Ais temp
either hot

cHg

! fomsekoppelter amplifier is used in either hot ⁰ ^ X. · _ern the Regelgenauigto? Sen stage pn one "and in the second stage t _5, the use of ^ KaItut _Anordnunge" with

Sien pnp transistor receives. The amplifier is wedge _can order ate ™ ^ORFI Jl.

Si "driven over a bridge, but thermistors improved ^werde1 ^ _elschwing clothes can

ohmic resistances, of which the penode duration ^ ^ J _{kung enl pre} .

bhäi Wid ^^ g * ^ L ^ «

_{in the ht}

, ^ _Best by J. _raturf ühlers in

consists of vfer ohmic resistances, of which D ^ ^ J _{kung p}

At least one temperature-dependent resistance ^^ g * ^ L ^ «

"Furthermore, it is already from the magazine» Funk- Art der

T ^ mk No. 7/1960, especially p. 218, known. Heating coil

Li thermostats influence the heat penetration value ^ ^

change by not only changing the heat sensor of the type f "Emkleung de ^ ^

The temperature of the heating wall of the thermostat, a ₅ its uptake, with the _{addition of the} filler

but at the same time also from another warmth and. ^^^^ stakek be provided solr.

auel'e influenced. For this purpose, the warmth with the small warmth is the duration of the oscillation

If you are thermally insulated from the Savior and the external environment, you can _adapt

nrr-itur within a second smaller heating man- through the door J ^ ^en

Ss housed and teem flow only through a clearly defined marriage. _{Qn Q ZC} s

nated heating with the heating wall (heat- ^ J ^ SS ^ on a ,, MiHigrad held

Invention is to earth one. _Execution example according to the figure

the output transistor of this used _T ^ s, st _O rschaH _Ung by _üb cr.a do _g gChrdet

Sr He _{g three} transistors wcraen au

Lösune for this task is the crfindungsgemäli Rcgle circuit for Thcrmoslate such au ^ gebil jet that the thermal coupling zw.schen Hc.zwicklung and temperature-dependent resistance is dimensioned so small that periodic Reijelabwc.chun- η ρgroßer period at tcmperaturabhäng.gen resistance arise, as a result of which a leaking of the EÄentrans, «« «in about 5 to 8 seconds, from the gcspcrrien to the conductive state and vice versa.

^If you use a bridge designed with Zonerdinden s, the rule is that the normal transistor is called the smallest l i ll ie ^ s ,, ««:

powered by what
40 _simple circuit saves a mog-

^^^ Reinforcement are the highest ^ ^e ^ arK fe _{type and the Eltl} .

disturb 2 ^ ^ rJ

45

door ^

Year ₁₁

_S ° _{and 6} form r, with annealing 5 and _AbB , _cich opposes: .. n-

^ ctensihaliung 16. de ^ en D, agon ₃ .- _Eniiltcr . _B ^ isstreck, of the transistor -I

iv.crl. mpera-

₅ o

S that the normal transistor is called small rschunnknngen already fully through ^ s ,, ««:,! Tteren under,

sp. s.

on TrunMsteren undcrsc,

rschg
_Dit . use
Lcitfühiuukeitityp ·· causes. UM can be a kuni-Thread factor he / u *. *. · Smfentr.nsislor also in rdam

id Verbun.K

-r ^ er. n ,,. j

will .... ·

_all r-b7v,. / ug ^

, flat thermal ko, .pi.: ng. Fun * ranks thereby cuue ^ n .... '^ Fordcrunecn a revision. around d, · ,. unwanted Reeelschwinuungen _; .m Mc bchafte,, st. where these R ^ clschw.npi.nucn are dimcnsionicrt that e> n: very gn>!.> ■: u ο. ■ permanently arise that in the favorable case .. » ^il! '^' f 'mcntcllcr determination about between ,,, ud announce reads. . . .. ".....,

In the case of a severe p-odenUaucr ,,, ^ vibrations as "I cmpLr.uununu

^ U ^ Gechstrorn _f c

over .e. » _{Fcich ichlc} tcn NNellcru ^ ^ ^ _for Bruckensc-;

^ Milliamps required s.ndk. · ..

£, ϊ ^ ύπ charging condensers Klein ^ h. .. ^

;; " _{K Jcilsator9} untculrucki emc SJb.K. ·, ^K _{hilllime be} ,., ISl ^ rcn Ir ^ uen,. N.

,,., ^ "" ..Lenhe ./^ .. üun, 14: -ls' ^

s, · .. -, _anKCJ , _cbcnc thermal coupling ^ u

<^ Ha / wickhnn: 14 and dm .Icmpcr «g ^ _{in this} application case cM.nschtc IU,

i _} "i;.i" _C r practical \ Hsführung>.oi; U.ik- - ^; - ^ " _{an with ciliem verwC} ndct. . . ic ,,,.

ι temperature sensor at about ± 0.125 ⁰ C reached Tcmpcluränderung the heating jacket full irchstcuerung or blocking of Hcizomcs.
Instead of a pnp transistor in the first stage

and npn transistors in the subsequent stages of the amplifier, this can also be done in reverse with an npn transistor in the input stage and build pnp transistors in the following stages 5.

1 sheet of drawings

Claims (3)

! 773 033 ι generator is generated. It must therefore have special claims; Attention should be directed to the Froqucwkonstonz of the respective basic generator. Therefore be 1. Regulatorichaltung for thermostats with such a basic generator with a thermostat DC voltage supply Wtderstandsbrücke s provided, which ensures that the ambient temperature with at least one temperature-dependent temperature of the basic generator maintains its constant value regardless of the resistance in one branch of the bridge and two outside temperatures.
Zener diodes in the two opposite With conventional regulator circuits for Uuarz bridge branches and a first transistor, thermostate, mercury contact thermometers are used whose emitter base section is in the measuring diagonal ίο or bimetallic switch as a temperature sensor and Helen of the bridge and used with the emitter on the lais as a Schah amplifier. With such a junction point of the two Zener diodes, however, it cannot be avoided that it is closed, in which the collector of the first sudden switching impacts, caused by tin and transistor with the base of a second transistor, occur. which are noticeable as a switching gate and its emitter with the base of an end- ₁₃ crack above the TF channels. Step transistor is connected, in whose collector this crack, which is arranged via TF links with a heating circuit, and will, however, make themselves particularly annoying in the case of the first transistor of the opposite noticeable when instead of the normal Sprachubertem The conductivity type compared to the two applications via the TF-Streeken data transmission is the transistors whose transistors are to be identified. also shows that the thermal coupling between the heating coil (14) and temperature-dependently a circuit arrangement for a 1 hermoekgem resistor (1) is dimensioned so small that pe- ment comparison point thermostats are known, The periodic control deviations of large periods consist of a three-stage direct current _{amplifier with a duration on the temperature-dependent resistor (1) a 5} transistors of the same conductivity type, where a bridge circuit is created, whereby a through-control of the output stage is in the input stage, feiv.transistor (23) in about 5 until S seconds from the opposite Brückenzv / own a locked in the conductive state and umee- temperature-dependent resistor is arranged, which is reversed. "serve as a temperature sensor. The temperature 2. Regulator circuit according to claim 1, characterized in that 30 fluctuations are identified on the thermocouple Verce, ! ate the thermal coupling in the same way, in the case of the one towards the same temperature Comparative mass with a heating resistor held between the heating coil and the temperature sensor (1) is arranged by means of a filler nut small heat resistance, balanced, with the heating winding ability that in a holder df? Temperature of the reference mass in the output of the three-stage feeler: is on jetirdnet. he follows. 35 amplifier is arranged. Through this arrangement 3. Control circuit after one of the previous continuous control, measurement errors that ^; The following claims, characterized in that inadequate compensation of the temperature fluctuations and the output of the first transistor stage occur via conditions, avoided. The accuracy of the rule of a blocking capacitor (9) with the negative tune is given by the pole of a rectifier circuit (15) reached in the bridge circuit for accuracy, with the smallest deviations being connected to the power supply. Immediate compensation from the setpoint to have. The set basic power takes into account the outside temperature and through certain attenuators a permanent one 45 Oscillation around the setpoint is easily avoided, with the smallest possible fluctuations due to the thermal inertia of the To be collected for comparison The invention relates to a regulator circuit for processing arrangement is, however, because of its constant re- Thermostats with a DC-powered gclcharakters as a replacement for the conventional Resistance bridge with at least one temperature 50 quartz thermostat with mercury contact thermometer ahhangiaen resistance in one branch of the bridge is not suitable, since the performance and two Zener diodes in the two opposite the output stage the power loss hyperbola of the izcndcn bridge branches as well as a first transi- kndstufentransr-iors would pass through too slowly, stör, whose emitter-base path in the measuring diug; ·; Ηΐ- so c!; TB the "Iiansistor due to overload / destroyed