Electric lamp and discharge devices: systems – Plural power supplies – Discharge device and/or rectifier in one of the supply circuits
Patent
1991-06-11
1993-03-02
Laroche, Eugene R.
Electric lamp and discharge devices: systems
Plural power supplies
Discharge device and/or rectifier in one of the supply circuits
315172, 315173, 315176, 315240, 315241R, 315246, 315362, H05B 3700
Patent
active
051912619
ABSTRACT:
A flash lamp power supply system, comprising (a) a simmer power supply circuit, comprising (i) a DC simmer power supply, (ii) means for connecting a flash lamp in series with the DC power supply, and (iii) a capacitor connected in parallel to the power supply and to the flash lamp connecting means, wherein the impedance and capacitance of the simmer power supply are selected so as to provide dV/dT for the simmer power supply circuit equal to or greater than the rate at which the lamp impedance changes during a flash cycle; and (b) a pulse power supply circuit, comprising (i) a DC pulse source voltage supply, (ii) a thyristor, and (iii) means for connecting the lamp in series with the DC pulse source voltage supply and the thyristor, wherein the pulse power supply circuit further comprises a capacitor connected in parallel with the pulse source voltage supply.
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LaRoche Eugene R.
Purus Inc.
Shingleton Michael B.
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