DE2734097C3 - Device for monitoring the relationship between two reference voltages - Google Patents
Device for monitoring the relationship between two reference voltagesInfo
- Publication number
- DE2734097C3 DE2734097C3 DE19772734097 DE2734097A DE2734097C3 DE 2734097 C3 DE2734097 C3 DE 2734097C3 DE 19772734097 DE19772734097 DE 19772734097 DE 2734097 A DE2734097 A DE 2734097A DE 2734097 C3 DE2734097 C3 DE 2734097C3
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- output
- voltages
- differential amplifier
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Control Of Voltage And Current In General (AREA)
Description
3 43 4
Der Differenzverstärker 4 liefert in Abhängigkeit der beiden Spannungen LJ\ und U2, sondernThe differential amplifier 4 delivers as a function of the two voltages LJ \ and U2, but
vom Vorzeichen der Differenz seiner Eingangsspannun- aussch|jeßjjch in Abhängigkeit vom Verhältnis χ = [JJ-gen i/2 und US folgende (logische) Ausgangswerte: 6 6 u\ on the sign of the difference of its input voltage excl | j e ßjj c h depending on the ratio χ = [JJ-gen i / 2 and US the following (logical) output values: 6 6 u \
folgendermaßen darstellen: + 1, wenn U5 > Ul und - 1, wenn U5 < Ul. 5represent as follows: +1 if U5> Ul and - 1 if U5 <Ul . 5
.v, = I + λ (1 + -ν,) für den übergang H -+ - I Im ersten Fall ist.v, = I + λ (1 + -ν,) for the transition H - + - I In the first case is
und
US = Ul + ^(Ίl + Ul) and
US = Ul + ^ (Ίl + Ul)
10 X1 = 1 - \(| + χ,) für den übergang - 1 -» + 1 und im zweiten Fall ist10 X 1 = 1 - \ (| + χ,) for the transition - 1 - »+ 1 and in the second case
Daraus orgeben sich die Schwellwerte US = LM - x(Ul + Ul), (I + %)2 This gives rise to the threshold values US = LM - x (Ul + Ul), (I +%) 2
wobei der Wechsel der Werte genau beim Obergang 15 I — λwhere the change in values is exactly at transition 15 I - λ
t/5 = t/2 eintritt Knapp vor dem Übergang des . ιt / 5 = t / 2 occurs just before the transition of the. ι
Ausgangswertes des Differenzverstärkers 4 vom Wert X1 = -'—Output value of the differential amplifier 4 of the value X 1 = -'-
il dh i 1 ~il dh i 1 ~
gg
+1 auf den Wert -1 gilt daher die Beziehunggg
+1 to the value -1 therefore the relationship applies
sowie eine Hysteresebreiteas well as a hysteresis width
l/2=UI+\(UI + U2), 20l / 2 = UI + \ (UI + U2), 20
4\4 \
während knapp vor dem übergang in umgekehrter ' ' '2 1 — \2 while just before the transition in reverse ''' 2 1 - \ 2
Richtung gut:Direction good:
Die erfindungsgemäße Einrichtung eignet sich für alleThe device according to the invention is suitable for everyone
Ul=Ul- \ (U l + Ul). 25 Zwecke der Studiotechnik, bei denen ein Geräuschver Ul = Ul- \ (U l + Ul). 25 purposes of studio technology, in which a noise reduction
gleich durchzuführen ist, ferner zur Überwachung vonis to be carried out immediately, also for the monitoring of
Hieraus lassen sich die Größenbeziehungen bei den Spannunp;sverhältnissen mit konstant bleibendem Hybeiden Übergängen unabhängig von den Absolutwerten stereseverhältnis.From this, the size relationships in the voltage ratios with a hybrid that remains constant Transitions independent of the absolute steresis ratio values.
Hierzu 1 Blau ZeichnungenFor this 1 blue drawings
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT720676 | 1976-09-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2734097A1 DE2734097A1 (en) | 1978-03-30 |
DE2734097B2 DE2734097B2 (en) | 1979-09-06 |
DE2734097C3 true DE2734097C3 (en) | 1980-05-14 |
Family
ID=3593754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772734097 Expired DE2734097C3 (en) | 1976-09-29 | 1977-07-28 | Device for monitoring the relationship between two reference voltages |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2734097C3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2915703C2 (en) * | 1979-04-12 | 1984-03-29 | Siemens AG, 1000 Berlin und 8000 München | Circuit arrangement for monitoring the values of at least two electrical measurement signals |
-
1977
- 1977-07-28 DE DE19772734097 patent/DE2734097C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2734097B2 (en) | 1979-09-06 |
DE2734097A1 (en) | 1978-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAP | Request for examination filed | ||
OD | Request for examination | ||
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |