GB1471150A - Self-biased class c oscillators - Google Patents
Self-biased class c oscillatorsInfo
- Publication number
- GB1471150A GB1471150A GB3620073A GB3620073A GB1471150A GB 1471150 A GB1471150 A GB 1471150A GB 3620073 A GB3620073 A GB 3620073A GB 3620073 A GB3620073 A GB 3620073A GB 1471150 A GB1471150 A GB 1471150A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- winding
- discharge
- transistor
- auxiliary
- 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
- 238000004804 winding Methods 0.000 abstract 13
- 239000003990 capacitor Substances 0.000 abstract 8
- 238000007599 discharging Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
- H02M7/53832—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement in a push-pull arrangement
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
- H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
- H05B41/2822—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Inverter Devices (AREA)
Abstract
1471150 Transistor oscillators THORN ELECTRICAL INDUSTRIES Ltd 18 June 1974 [30 July 1973] 36200/73 Heading H3T [Also in Division H2] In a transistor class C tuned transformer feedback oscillator having a biasing capacitor 19 for the input electrode of a transistor 11, a circuit path 81, 82 is connected to a winding 80 which is coupled to an inductor 20 of a parallel resonant circuit 13 of the tuned transformer such that in operation the circuit 81, 82 provides a potential source of lower voltage than a terminal 14 to which the parallel resonant circuit is connected for discharging the bias capacitor 19 when the transistor 11 is in its non-conductive condition. The oscillator operates similar to Specification 1,308,284. The discharge from capacitor 19 is primarily through resistor 82, diode 81 and auxiliary winding 80 and only to a small extent through resistor 26. The auxiliary winding 80 and diode 81 provide an auxiliary positive rail of lower voltage than the terminal 14 which permits the capacitor 19 to discharge during alternate half cycles without excessive power dissipation. The rate of discharge is set by selecting the value of R82. In a modification (Fig. 2, not shown) a single winding (18a) is used in place of the feedback and auxiliary windings 18, 80, and the positive supply for discharging the biasing capacitor (19a) is provided by a diode (81a) which charges a storage capacitor (84). This discharge rate is adjusted by appropriate selection of the value of a resistor (83). In a further modification (Fig. 3 of the provisional Specification not shown) the lower end of auxiliary winding 80 is connected to 16 via a further winding (86) of the transformer 23. A transformer (Fig. 4, of the provisional Specification not shown) is constructed to provide leakage inductance between a winding section (A) containing windings 20, 18, 80 and a winding section (B) containing windings 24, 24a, 24b and (86) which takes the place of a ballast in a lamp circuit to limit the current through the discharge lamp 60. Windings 80 and (86) are connected in phase opposition so that in the pre-strike interval the discharge voltage across the capacitor 19 is reduced. When the lamp strikes the frequency of the oscillator increases and the output voltage of winding 86 falls to one third of its pre-strike value and the net discharge voltage for capacitor 19 is increased to maintain correct phasing at increased frequency.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3620073A GB1471150A (en) | 1973-07-30 | 1973-07-30 | Self-biased class c oscillators |
IE1308/74A IE39524B1 (en) | 1973-07-30 | 1974-06-21 | Improvements in self-biased class coscillators |
DE2432761A DE2432761C2 (en) | 1973-07-30 | 1974-07-08 | Oscillator with a transistor operating in C mode with automatic bias voltage generation |
NLAANVRAGE7409581,A NL172289C (en) | 1973-07-30 | 1974-07-15 | SELF-ADJUSTING CLASS C OSCILLATOR. |
BE146623A BE817727A (en) | 1973-07-30 | 1974-07-17 | SELF-POLARIZED OSCILLATOR OPERATING IN CLASS C |
FR7424856A FR2239808B1 (en) | 1973-07-30 | 1974-07-17 | |
IT25322/74A IT1017268B (en) | 1973-07-30 | 1974-07-18 | AUTOMATIC POLARIZATION OSCILLATOR |
DK402274A DK143430C (en) | 1973-07-30 | 1974-07-26 | SELF-BASED CLASS-C OSCILLATOR FOR OPERATION OF LIGHT FROZEN |
LU70630A LU70630A1 (en) | 1973-07-30 | 1974-07-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3620073A GB1471150A (en) | 1973-07-30 | 1973-07-30 | Self-biased class c oscillators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1471150A true GB1471150A (en) | 1977-04-21 |
Family
ID=10385892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3620073A Expired GB1471150A (en) | 1973-07-30 | 1973-07-30 | Self-biased class c oscillators |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE817727A (en) |
DE (1) | DE2432761C2 (en) |
DK (1) | DK143430C (en) |
FR (1) | FR2239808B1 (en) |
GB (1) | GB1471150A (en) |
IE (1) | IE39524B1 (en) |
IT (1) | IT1017268B (en) |
LU (1) | LU70630A1 (en) |
NL (1) | NL172289C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2147162A (en) * | 1983-09-22 | 1985-05-01 | Isco Inc | Gas discharge lamp control circuits for absorbance monitors |
GB2174257A (en) * | 1985-04-25 | 1986-10-29 | Thantiri Mudalige Don Philip | Oscillator for gas discharge lamp |
DE4208911B4 (en) * | 1991-03-20 | 2004-11-18 | Hiroshi Sakamoto | power supply |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2642028C2 (en) * | 1976-09-18 | 1986-01-09 | Flender-Himmelwerk GmbH & Co KG, 7400 Tübingen | Self-excited static alternator |
WO1980001712A1 (en) * | 1979-02-15 | 1980-08-21 | T Fogelman | Portable self contained lighting device working on solar radiation |
DE2909377A1 (en) * | 1979-03-09 | 1980-09-18 | Siemens Ag | METHOD AND CIRCUIT ARRANGEMENT FOR THE SIMULTANEOUS CONTROL OF MULTIPLE GAS DISCHARGE LAMPS WITH INNER GAS FILLING |
FR2503954A1 (en) * | 1981-04-09 | 1982-10-15 | Sefli | PROCESS FOR ESSENTIALLY SINUSOIDAL CUTTING OF CONTINUOUS VOLTAGE WITH REGULATION AND DEVICE FOR IMPLEMENTING SAID METHOD |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1623117C3 (en) * | 1967-09-29 | 1973-12-06 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Circuit arrangement for reducing the harmonic content of inductive loop detectors |
GB1308284A (en) * | 1971-01-25 | 1973-02-21 | Thorn Electrical Ind Ltd | Self-biased class c oscillators |
-
1973
- 1973-07-30 GB GB3620073A patent/GB1471150A/en not_active Expired
-
1974
- 1974-06-21 IE IE1308/74A patent/IE39524B1/en unknown
- 1974-07-08 DE DE2432761A patent/DE2432761C2/en not_active Expired
- 1974-07-15 NL NLAANVRAGE7409581,A patent/NL172289C/en not_active IP Right Cessation
- 1974-07-17 BE BE146623A patent/BE817727A/en not_active IP Right Cessation
- 1974-07-17 FR FR7424856A patent/FR2239808B1/fr not_active Expired
- 1974-07-18 IT IT25322/74A patent/IT1017268B/en active
- 1974-07-26 DK DK402274A patent/DK143430C/en not_active IP Right Cessation
- 1974-07-29 LU LU70630A patent/LU70630A1/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2147162A (en) * | 1983-09-22 | 1985-05-01 | Isco Inc | Gas discharge lamp control circuits for absorbance monitors |
GB2174257A (en) * | 1985-04-25 | 1986-10-29 | Thantiri Mudalige Don Philip | Oscillator for gas discharge lamp |
DE4208911B4 (en) * | 1991-03-20 | 2004-11-18 | Hiroshi Sakamoto | power supply |
Also Published As
Publication number | Publication date |
---|---|
DE2432761C2 (en) | 1984-07-12 |
LU70630A1 (en) | 1974-12-10 |
NL172289B (en) | 1983-03-01 |
DK143430C (en) | 1981-12-21 |
NL7409581A (en) | 1975-02-03 |
IE39524L (en) | 1975-01-30 |
IE39524B1 (en) | 1978-10-25 |
BE817727A (en) | 1974-11-18 |
DK143430B (en) | 1981-08-17 |
FR2239808B1 (en) | 1979-01-26 |
FR2239808A1 (en) | 1975-02-28 |
DE2432761A1 (en) | 1975-02-13 |
IT1017268B (en) | 1977-07-20 |
NL172289C (en) | 1983-08-01 |
DK402274A (en) | 1975-03-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB909969A (en) | ||
US3543186A (en) | Frequency stabilized crystal controlled transistor oscillator | |
US4390813A (en) | Transformer for driving Class D amplifier | |
GB949829A (en) | Improvements in or relating to electric supply arrangements for gas discharge tubes | |
GB1471150A (en) | Self-biased class c oscillators | |
US3070758A (en) | Transistor oscillator | |
US2390659A (en) | Oscillation generator system | |
GB1326810A (en) | Voltage and current regulated power supply circuit for gaseous discharge lamp | |
US3038128A (en) | Transistor blocking oscillator using resonant pulse width control | |
US3389298A (en) | Single-transistor flasher circuit | |
GB949790A (en) | Improvements in or relating to transistor voltage converters | |
ES8402688A1 (en) | Ballast apparatus for operating a discharge lamp. | |
US2315658A (en) | Negative resistance device | |
US3875526A (en) | Two-frequency alternate tone generator | |
GB949535A (en) | Improvements in or relating to time-base circuits | |
US2454933A (en) | Frequency modulation | |
US3059141A (en) | Oscillator | |
GB1050427A (en) | ||
GB691245A (en) | Improvements in direct current power supply systems | |
US2364761A (en) | Electron discharge device | |
US3439287A (en) | Transistor microwave generator with second harmonic output | |
GB1308284A (en) | Self-biased class c oscillators | |
US2118414A (en) | Thermionic oscillation generator | |
US2877383A (en) | Electrical pulse producing circuits | |
US4698559A (en) | Power amplifiers for driving inductive loads |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920618 |