GB1105406A – Improvements in level shifting circuits
– Google Patents
GB1105406A – Improvements in level shifting circuits
– Google Patents
Improvements in level shifting circuits
Info
Publication number
GB1105406A
GB1105406A
GB44001/66A
GB4400166A
GB1105406A
GB 1105406 A
GB1105406 A
GB 1105406A
GB 44001/66 A
GB44001/66 A
GB 44001/66A
GB 4400166 A
GB4400166 A
GB 4400166A
GB 1105406 A
GB1105406 A
GB 1105406A
Authority
GB
United Kingdom
Prior art keywords
voltage
shifting
sources
resistors
level shifting
Prior art date
1965-11-10
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
Application number
GB44001/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
1965-11-10
Filing date
1966-10-03
Publication date
1968-03-06
1966-10-03
Application filed by International Business Machines Corp
filed
Critical
International Business Machines Corp
1968-03-06
Publication of GB1105406A
publication
Critical
patent/GB1105406A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03F—AMPLIFIERS
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/34—Dc amplifiers in which all stages are dc-coupled
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03F—AMPLIFIERS
H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
H03F1/56—Modifications of input or output impedances, not otherwise provided for
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03F—AMPLIFIERS
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/34—Dc amplifiers in which all stages are dc-coupled
H03F3/343—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03F—AMPLIFIERS
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/34—Dc amplifiers in which all stages are dc-coupled
H03F3/36—Dc amplifiers in which all stages are dc-coupled with tubes only
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
H03H11/00—Networks using active elements
H03H11/02—Multiple-port networks
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
H03K5/003—Changing the DC level
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B3/00—Line transmission systems
H04B3/02—Details
H04B3/04—Control of transmission; Equalising
Abstract
1,105,406. Voltage level shifting circuit. INTERNATIONAL BUSINESS MACHINES CORPORATION. 3 Oct., 1966 [10 Nov., 1965], No. 44001/66. Heading H4R. A circuit for shifting the voltage level of a signal in a transmission line between a source E s , Fig. 3, and a load R 1 ,comprises a # network of resistors R 1 , R 2 and R 3 , with the shifting voltage derived from two sources E 1 and E 2 which are connected in series-with the shunt resistors R 1 and R 2 . The voltage sources may be applied via emitter followers, Fig. 6 (not shown) or, if the shifting voltage is an A.C., the sources may comprise the sections either side of a tapping in the secondary of a transformer, Fig. 7 (not shown). The values of the resistors R 1 , R 2 and R 3 follow the normal # network theory, i.e. R 1 =R 2 =Z o K+1/K-1; R 3 =Z 0 K
GB44001/66A
1965-11-10
1966-10-03
Improvements in level shifting circuits
Expired
GB1105406A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US507200A
US3409785A
(en)
1965-11-10
1965-11-10
Wide band electronically variable level shifter
Publications (1)
Publication Number
Publication Date
GB1105406A
true
GB1105406A
(en)
1968-03-06
Family
ID=24017647
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB44001/66A
Expired
GB1105406A
(en)
1965-11-10
1966-10-03
Improvements in level shifting circuits
Country Status (8)
Country
Link
US
(1)
US3409785A
(en)
BE
(1)
BE688959A
(en)
CH
(1)
CH451248A
(en)
DE
(1)
DE1283911B
(en)
FR
(1)
FR1500589A
(en)
GB
(1)
GB1105406A
(en)
NL
(1)
NL152413B
(en)
SE
(1)
SE324176B
(en)
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3123746A
(en)
*
1961-01-10
1964-03-03
figure
US3188554A
(en)
*
1961-06-13
1965-06-08
Sinclair Research Inc
Attenuation network
1965
1965-11-10
US
US507200A
patent/US3409785A/en
not_active
Expired – Lifetime
1966
1966-10-03
GB
GB44001/66A
patent/GB1105406A/en
not_active
Expired
1966-10-27
BE
BE688959D
patent/BE688959A/xx
unknown
1966-11-02
FR
FR8115A
patent/FR1500589A/en
not_active
Expired
1966-11-08
NL
NL666615710A
patent/NL152413B/en
unknown
1966-11-08
DE
DEJ32225A
patent/DE1283911B/en
active
Pending
1966-11-09
CH
CH1619266A
patent/CH451248A/en
unknown
1966-11-10
SE
SE15428/66A
patent/SE324176B/xx
unknown
Also Published As
Publication number
Publication date
NL152413B
(en)
1977-02-15
BE688959A
(en)
1967-03-31
CH451248A
(en)
1968-05-15
DE1283911B
(en)
1968-11-28
NL6615710A
(en)
1967-05-11
FR1500589A
(en)
1967-11-03
SE324176B
(en)
1970-05-25
US3409785A
(en)
1968-11-05
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