Electronic stabilizer used for hand-held lamp

Details Electronic stabilizer used for hand-held lamp Electronic stabilizer used for hand-held lamp

2007-04-17

2007-04-17

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

C315S2090SC, C315SDIG002

Reexamination Certificate

active

11259024

ABSTRACT:
An electronic stabilizer used for hand-held lamp is disclosed. The electronic stabilizer of the present invention comprises four circuits: a current overflow protection and current source noise absorption circuit, a voltage-enhancing rectification filtering circuit, a high-frequency oscillation circuit and a harmonic oscillation output circuit. The current overflow protection and current source noise absorption circuit can protect against current overflow and current source noises. The voltage-enhancing rectification filtering circuit may covert the AC to DC after rectifying and filtering out the current. Next, the DC is fed to the high-frequency oscillation circuit, which may convert the DC to rectangular wave signals. Then, the harmonic oscillation output circuit converts these rectangular wave signals into sine wave (near sine wave) signals. Now, the sine wave signals may light up one or more fluorescent lights and may enable these fluorescent lights to give out continuous light without any flickers.

REFERENCES:
patent: 4871971 (1989-10-01), Jeerings et al.
patent: 5798615 (1998-08-01), Gasparini et al.
patent: 5994843 (1999-11-01), Kataoka et al.

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