GB1500773A - High voltage high frequency power supply - Google Patents

High voltage high frequency power supply

Info

Publication number
GB1500773A
GB1500773A GB13023/75A GB1302375A GB1500773A GB 1500773 A GB1500773 A GB 1500773A GB 13023/75 A GB13023/75 A GB 13023/75A GB 1302375 A GB1302375 A GB 1302375A GB 1500773 A GB1500773 A GB 1500773A
Authority
GB
United Kingdom
Prior art keywords
thyristors
transformer
series
inequality
power supply
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
GB13023/75A
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.)
Union Carbide Corp
Original Assignee
Union Carbide 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.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1500773A publication Critical patent/GB1500773A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
    • H01S3/0975—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser using inductive or capacitive excitation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
    • H01S3/092—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp
    • 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
    • H02M7/505—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 thyratron or thyristor type requiring extinguishing means
    • H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/523—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit

Abstract

1500773 Supply system for arc generators; converting UNION CARBIDE CORP 27 March 1975 [29 March 1974] 13023/75 Headings H2H and H2F A supply system of an ozone corona generator 45, comprises a D.C. source 10 in series with the primary of a transformer 38 and at least 2 series connected thyristors 31, 32, the load 45 being connected with the secondary of the transformer 38, and the thyristors being unequal with respect to their forward voltage drop characteristic. As shown, the thyristors 31, 32 are gated simultaneously by h.f. oscillator 20 and in operation are turned off by a reverse voltage generated in the transformer primary circuit by the collapse of the arc in the load 45. The provision of two or more series thyristors increases the reverse voltage time in each cycle and the inequality of the devices reduces the turn off time of the pair. The inequality may be produced by the parallel connection of resistor/ capacitor circuits with respective thyristors.
GB13023/75A 1974-03-29 1975-03-27 High voltage high frequency power supply Expired GB1500773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45639674A 1974-03-29 1974-03-29

Publications (1)

Publication Number Publication Date
GB1500773A true GB1500773A (en) 1978-02-08

Family

ID=23812588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13023/75A Expired GB1500773A (en) 1974-03-29 1975-03-27 High voltage high frequency power supply

Country Status (9)

Country Link
JP (1) JPS50133426A (en)
CA (1) CA1050099A (en)
DE (1) DE2513026A1 (en)
FI (1) FI62916C (en)
FR (1) FR2266360B1 (en)
GB (1) GB1500773A (en)
IT (1) IT1034658B (en)
NO (1) NO751082L (en)
SE (1) SE404472B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330762A (en) * 1979-03-21 1982-05-18 United Kingdom Atomic Energy Authority Circuit for stabilizing an electrical discharge within a glow discharge gas laser
US4451766A (en) * 1982-05-03 1984-05-29 Hughes Aircraft Company Radio frequency laser pumping system
US5443800A (en) * 1993-06-01 1995-08-22 Liftech Corporation Pulse train generating circuit for control of an ozone generating means

Also Published As

Publication number Publication date
FI62916C (en) 1983-03-10
FR2266360A1 (en) 1975-10-24
IT1034658B (en) 1979-10-10
FR2266360B1 (en) 1981-08-07
CA1050099A (en) 1979-03-06
NO751082L (en) 1975-09-30
SE7503623L (en) 1975-09-30
AU7964675A (en) 1976-09-30
FI750954A (en) 1975-09-30
SE404472B (en) 1978-10-02
DE2513026A1 (en) 1975-10-02
JPS50133426A (en) 1975-10-22
FI62916B (en) 1982-11-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee