NO800698L - Radiofrekvensgenerator. - Google Patents

Radiofrekvensgenerator.

Info

Publication number
NO800698L
NO800698L NO800698A NO800698A NO800698L NO 800698 L NO800698 L NO 800698L NO 800698 A NO800698 A NO 800698A NO 800698 A NO800698 A NO 800698A NO 800698 L NO800698 L NO 800698L
Authority
NO
Norway
Prior art keywords
radio frequency
rectifier
load
reactance
current
Prior art date
Application number
NO800698A
Other languages
English (en)
Norwegian (no)
Inventor
Brien Richard Anthony O
Original Assignee
Decca Ltd
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 Decca Ltd filed Critical Decca Ltd
Publication of NO800698L publication Critical patent/NO800698L/no

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/081Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08146Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/20Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B11/00Generation of oscillations using a shock-excited tuned circuit
    • H03B11/04Generation of oscillations using a shock-excited tuned circuit excited by interrupter
    • H03B11/10Generation of oscillations using a shock-excited tuned circuit excited by interrupter interrupter being semiconductor device
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/661Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
    • H03K17/662Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals each output circuit comprising more than one controlled bipolar transistor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02Transmitters
    • H04B1/04Circuits
    • H04B2001/0491Circuits with frequency synthesizers, frequency converters or modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Dc-Dc Converters (AREA)
NO800698A 1979-03-13 1980-03-11 Radiofrekvensgenerator. NO800698L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7908897A GB2050735A (en) 1979-03-13 1979-03-13 Protecting oscillator transistor

Publications (1)

Publication Number Publication Date
NO800698L true NO800698L (no) 1980-09-15

Family

ID=10503851

Family Applications (1)

Application Number Title Priority Date Filing Date
NO800698A NO800698L (no) 1979-03-13 1980-03-11 Radiofrekvensgenerator.

Country Status (7)

Country Link
EP (1) EP0017343A1 (es)
JP (1) JPS55131278A (es)
AU (1) AU5637280A (es)
DK (1) DK104780A (es)
ES (1) ES489444A0 (es)
GB (1) GB2050735A (es)
NO (1) NO800698L (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57138876A (en) * 1981-02-17 1982-08-27 Shindengen Electric Mfg Co Ltd Full bridge type switching regulator stabilizing power source
EP0312142B1 (en) * 1987-10-12 1992-09-02 Koninklijke Philips Electronics N.V. Read circuit for a delay circuit
DE3883342T2 (de) * 1987-10-14 1994-03-10 Philips Nv Magnetooptische Aufzeichnungsvorrichtung und Betätigungsschaltung zur Anwendung in derartigen, magnetooptischen Aufzeichnungsvorrichtungen.
GB9901356D0 (en) * 1999-01-22 1999-03-10 Central Research Lab Ltd Method of and apparatus for the transmission of a plurality of signals
KR101694520B1 (ko) * 2013-11-26 2017-01-10 한국전자통신연구원 루프 안테나 및 그의 스위칭 방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD94433A (es) *
US3379955A (en) * 1964-11-17 1968-04-23 Lockheed Aircraft Corp Apparatus for protecting the switching elements of static inverters from transient voltages
US3424993A (en) * 1966-02-09 1969-01-28 Motorola Inc Transistor protection circuit
DE1563772A1 (de) * 1966-10-20 1970-04-09 Siemens Ag Als vollelektronische,bipolare UEberstromsicherung wirkende Schaltungsanordnung
US3517265A (en) * 1968-04-16 1970-06-23 Atomic Energy Commission Deionizing and fault protection circuit for a line-type pulser
US3769586A (en) * 1971-04-26 1973-10-30 Litton Systems Inc Hybrid coupler for radio transmitter having parallel output amplifier stages
US3721836A (en) * 1971-11-24 1973-03-20 W Rippel Current limited transistor switch
GB1483584A (en) * 1973-09-07 1977-08-24 Decca Ltd Radio frequency pulse generators and pulse transmitters
US4059801A (en) * 1975-12-11 1977-11-22 Johannessen Paul R Apparatus for degrading Q in a high-Q RF pulse transmitting system and the like

Also Published As

Publication number Publication date
EP0017343A1 (en) 1980-10-15
ES8103519A1 (es) 1981-02-16
DK104780A (da) 1980-09-14
ES489444A0 (es) 1981-02-16
AU5637280A (en) 1980-09-18
GB2050735A (en) 1981-01-07
JPS55131278A (en) 1980-10-11

Similar Documents

Publication Publication Date Title
US8542022B2 (en) VLF test generator
US5019954A (en) AC/DC conversion with reduced supply waveform distortion
US6351359B1 (en) Circuit for blocking a semiconductor switching device on overcurrent
KR19990068197A (ko) 전동 차량용 전원 장치
GB2065996A (en) Rectifying device with a smooth autput voltage
EP2728728B1 (en) High-frequency switch power supply and method for detecting high-frequency current
EP0797289B1 (en) Improvements in or relating to resonant converters
WO2020020875A1 (en) Safe operation in wireless power transmission systems
NO800698L (no) Radiofrekvensgenerator.
CN106646298A (zh) 一种体线圈及磁共振成像系统
EP0100331B1 (en) Apparatus for securely interrupting the electric power supply from a low-frequency or direct voltage source to a load
US2385673A (en) Carrier current system
CN112014727B (zh) 分接开关的谐波电流切换能力的测试装置
US8648608B2 (en) VLF test generator
US4194128A (en) Ripple control systems
EP0479196A1 (en) Power supply circuit
US4238644A (en) Supply circuit for a subscriber's line circuit
JPH01148024A (ja) 高調波補償装置
US5155754A (en) High frequency supply for an x-ray tube
KR101686654B1 (ko) 병원용 케이블 파워 제공 장치
JP2019017151A (ja) 高周波電源装置及び送電装置
US20230198423A1 (en) Frequency generator for generating a working frequency for a rail contact of an axle counter
SU441665A1 (ru) Измерительный коммутатор
SU130567A1 (ru) Устройство дл передачи электрической энергии по двухцепной линии
GB473368A (en) Improvements relating to apparatus for automatic current regulation in alternating current circuits