CN2266251Y - Ballast - Google Patents

Abstract

The utility model discloses a ballast, comprising a fluorescent lamp, a switch, a ballast, a voltage boost circuit, and a compensation circuit. The utility model is characterized in that three groups of intermediate tap windings can be divided when the ballast is wound, and the voltage boost circuit is connected with the compensating circuit. The utility model has the advantages of simple structure, easy installation, high brightness, long service life of a lamp tube, favorable performance of low voltage, fast start, and low integration cost. A lamp tube with a broken filament can be normally started, and a lamp tube without a filament can be produced.

Description

Novel ballast

The utility model belongs to ballast, particularly a kind of novel ballast.

Existing commercially available common ballast is that heated type starts, and is difficult to start the fluorescent tube heated filament and easily burns when low-voltage, for the very inadequacy on the low side of the general local voltage of China.Electric ballast adopts the high direct voltage pulse enable, can both start fast for about 120 volts at voltage, but the brightness deficiency of fluorescent tube, and the fluorescent material premature aging, shortening fluorescent tube useful life, the element in the electric ballast damages easily, and itself not long in life-span.

It is a kind of simple in structure that the purpose of this utility model is to provide, and low-pressure performance is good, the novel ballast that long service life brightness is high.

Technical solution of the present utility model is such, include fluorescent lamp, switch, ballast, booster circuit and compensating circuit, during the ballast coil coiling, be divided into three groups of equal turn numbers or close tapped coil, and connection booster circuit and compensating circuit, booster circuit is formed by coil, electric capacity, starter serial connection, starter thermistor in parallel, and compensating circuit is formed by coil, capacitance series.

Advantage of the present utility model: simple in structure, easy for installation, brightness is high, lamp tube service life is long, low-pressure performance is good, startup is fast, overall cost is low, and the fluorescent tube that burns out filament also can be normally luminous, also can produce the not fluorescent tube of filament.

Below in conjunction with drawings and Examples to the utility model further instruction.

Accompanying drawing is the utility model mounting structure electrical schematic diagram.

In the accompanying drawing, K switch, ballast L, fluorescent lamp D, capacitor C 1, C2, thermistor R, starter S.

In the electrical schematic diagram of accompanying drawing, ballast L divides three groups of coils, its coil L1, electric capacity C1, starter S are concatenated into booster circuit, and thermistor R also connects Starter S, L2 and electric capacity C2 are concatenated into lining and repay circuit, behind the L3 connecting valve K To 220 volts of live wires, L1 termination fluorescent lamp D pin, zero line connect fluorescent lamp D another The end pin.

Principle is: when switch K was closed, voltage boosted through booster circuit, daylight Lamp obtains the high voltage of a 500-600 volt, makes its inner gas conducting, Thereby lighted fluorescent lamp, electric capacity C1 does not re-use after fluorescent tube is lighted, and mends Repay the electric capacity C2 of circuit when low-voltage (160 volts), as improving voltage compensation Power factor is regulated the effect of brightness.

Most preferred embodiment of the present utility model is such, shown in accompanying drawing, be divided into three groups of equal turn numbers or close centre tap coil during ballast coil L coiling, wherein coil L1 tap and capacitor C 1, starter S are concatenated into booster circuit, thermistor R starter S in parallel.Coil L2 tap and capacitor C 2 are concatenated into compensating circuit.Capacitor C 14 F/630V, C2 is with 4 F/400V best results.Element in the circuit is welded on the circuit board, and is fixed in the box body, connect 220 volts of live wires after coil L3 lead-in wire connects K switch, L1 other end lead-in wire connects the pin of fluorescent lamp D, arrives fluorescent lamp D other end pin behind thermistor R, the capacitor C 2 tie points lead-in wire connecting to neutral line.

Claims (1)

1. novel ballast, include fluorescent lamp, switch, ballast and booster circuit, compensating circuit, be divided into three groups of tapped coils when it is characterized in that the ballast coil coiling, coil L1 and capacitor C 1, starter S are concatenated into booster circuit, thermistor R starter S in parallel, coil L2 and capacitor C 2 are concatenated into compensating circuit, L3 connects 220 volts of live wires after connecting K switch, the pin of another termination fluorescent lamp of L1 D connects fluorescent lamp D other end pin behind the tie point connecting to neutral line of resistance R, capacitor C 2.

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