GB1154550A - Improvements in or relating to Transistor Push-Pull Modulators. - Google Patents

Improvements in or relating to Transistor Push-Pull Modulators.

Info

Publication number
GB1154550A
GB1154550A GB1370467A GB1370467A GB1154550A GB 1154550 A GB1154550 A GB 1154550A GB 1370467 A GB1370467 A GB 1370467A GB 1370467 A GB1370467 A GB 1370467A GB 1154550 A GB1154550 A GB 1154550A
Authority
GB
United Kingdom
Prior art keywords
transistors
transformer
pairs
resistances
relating
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
Application number
GB1370467A
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.)
Siemens AG
Original Assignee
Siemens AG
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.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1154550A publication Critical patent/GB1154550A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
    • H03C1/545—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using bipolar transistors

Landscapes

  • Amplitude Modulation (AREA)

Abstract

1,154,550. Balanced modulators. SIEMENS A.G. 23 March, 1967 [25 March, 1966], No. 13704/67. Heading H3R. A balanced modulator comprises four transistors 1-4 connected as shown, the carrier frequency being supplied to the bases from transformer 6 through individual resistances 15-18 and the modulation being supplied from transformer 5 through resistances 21-24. The collectors of the transistors are connected in pairs to opposite ends of the primary winding of the output transformer 7, a centre tap of this winding being connected to one end of a potential source 8 to the other end of which is connected to a centre tap of transformer 6 and through resistances 9 and 10 to the two pairs of emitters; a variable resistance 11 connects the two pairs of emitters. The four transistors are preferably formed as an integral unit and may be arranged in the form of a square on a common baseplate. The transistor should have a high threshold voltage in the base-emitter region, and may be silicon transistors.
GB1370467A 1966-03-25 1967-03-23 Improvements in or relating to Transistor Push-Pull Modulators. Expired GB1154550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0102778 1966-03-25

Publications (1)

Publication Number Publication Date
GB1154550A true GB1154550A (en) 1969-06-11

Family

ID=7524674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1370467A Expired GB1154550A (en) 1966-03-25 1967-03-23 Improvements in or relating to Transistor Push-Pull Modulators.

Country Status (6)

Country Link
BE (1) BE696053A (en)
DE (1) DE1303769C2 (en)
FR (1) FR1515495A (en)
GB (1) GB1154550A (en)
NL (1) NL6703846A (en)
SE (1) SE333958B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955138A (en) * 1974-11-06 1976-05-04 General Electric Company Electronic energy consumption meter with input transformer having single resistance terminated secondary winding coupled to C-MOS switches driven by pulse width modulated control signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955138A (en) * 1974-11-06 1976-05-04 General Electric Company Electronic energy consumption meter with input transformer having single resistance terminated secondary winding coupled to C-MOS switches driven by pulse width modulated control signals

Also Published As

Publication number Publication date
FR1515495A (en) 1968-03-01
DE1303769C2 (en) 1973-04-12
SE333958B (en) 1971-04-05
BE696053A (en) 1967-09-25
DE1303769B (en) 1972-09-21
NL6703846A (en) 1967-09-26

Similar Documents

Publication Publication Date Title
GB978252A (en) Double balanced transistor modulators
ES402652A1 (en) Amplifier circuit
ES401276A1 (en) Differential amplifier and bias circuit
GB1421924A (en) Paired transistor arrangement
GB1154550A (en) Improvements in or relating to Transistor Push-Pull Modulators.
GB897731A (en) Improvements in or relating to circuit arrangements suitable for amplifying mixing or modulating electric voltages
GB773435A (en) Improvements in or relating to transistor push-pull modulators
US3122715A (en) Frequency converter systems
GB1187699A (en) Improvements in or relating to Balanced Modulators
GB1035377A (en) Transistor amplitude modulators
GB965016A (en) Improvements in or relating to electric modulator circuits employing transistors
GB960381A (en) Improvements in analogue electronic computers
GB1253829A (en) Improvements in or relating to amplitude modulators
GB851103A (en) Improvements in or relating to modulators for electric carrier communication systems
GB900258A (en) Improvements in electrical converters
GB1076689A (en) Improvements in and relating to push-pull transistor modulators
GB996460A (en) Compensating circuit
GB1017544A (en) Amplitude modulator
GB1065691A (en) Improvements in or relating to d.c.electrical amplifiers employing d.c.to a.c.conversion
JPS56132006A (en) Differential amplifier
GB1026174A (en) Improvements relating to electrical modulating circuits
GB878649A (en) Improvements in circuit arrangements for clamping a signal to a reference potential
GB1267827A (en) Improvements in or relating to amplifiers
GB857280A (en) Direct current modulator
GB1000689A (en) Improvements in or relating to electrical digital-to-analogue signal converters