Circuit for fluorescent light power supply in a borehole televis

Details Circuit for fluorescent light power supply in a borehole televis Circuit for fluorescent light power supply in a borehole televis

1987-12-09

1989-02-28

Moore, David K.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315209R, 315219, 315106, 315DIG7, H05B 3702

Patent

active

048088897

ABSTRACT:
A compact, low electrical noise power supply for fluorescent lights used in conjunction with a borehole television system. The outputs of first and second power sources are combined to initiate operation of the fluorescent light. After the operation of the light has been initiated, the second power source is disabled and the light is maintained in operation by the first source of electric power. In the preferred embodiment, the first source of electric power is a source of high voltage DC current and the second source of electric power is a high frequency oscillator. A transformer is provided to combine the outputs of the two sources of electric power. The operation of the oscillator is controlled by a momentary start switch which disables the oscillator after the light has been activated.

REFERENCES:
patent: 2586403 (1952-02-01), Waguet
patent: 2586405 (1952-02-01), Waguet
patent: 4544863 (1985-10-01), Hashimoto

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