CN204272441U - Voltage-controlled dimmable tri-color energy-saving lamp - Google Patents

Abstract

A kind of voltage control tunable optical trichromatic energy saving lamp, comprising is serially connected forms the diode D1 in loop, diode D2 and electric capacity C4, diode D3 is parallel with in this loop, resistance R1, diode D7 and triode Q1, diode D3 positive terminal series diode D4, between diode D1 and diode D2, outside 220V AC power is connected to respectively between diode D3 and diode D4, filtering oscillating circuit is parallel with between diode D2 and electric capacity C4, resistance R1 and diode D7 one end are connected to filtering oscillating circuit respectively, triode Q1 is connected to the collector electrode of triode Q2 through resistance R4, triode Q2 connects filtering oscillating circuit through resistance R5, triode Q2 base stage is connected to filtering oscillating circuit through resistance R3, triode Q1 base stage is connected to filtering oscillating circuit through diode D5, pulse transformer T3 is parallel with at electric capacity C1 two ends.This arrangement works is stablized, and the life-span is long.

Description

Voltage-controlled dimmable tri-color energy-saving lamp

technical field

The utility model relates to the technical field of lighting, in particular to a voltage-controlled dimmable three-primary-color energy-saving lamp.

Background technique

Voltage control dimming energy-saving lamp is a device that rectifies the wide-ranging alternating current and turns it into a lamp power supply, and controls the flux of energy-saving lights with voltage changes. This type of device is widely used, especially for home lighting, emergency lighting and grid voltage. Use in unstable places.

At present, the most commonly used is to use integrated modules to adjust the luminous flux of the lamp by adjusting the operating frequency of the circuit. The main disadvantages are the high cost of lamps, miscellaneous models, and high requirements for AC power.

Utility model content

The technical problem to be solved by the utility model is to provide a voltage-controlled dimmable tri-primary-color energy-saving lamp that is simple and practical, has wide adaptability and reliable performance.

The technical problem to be solved by the utility model adopts the following technical solutions to realize:

A voltage-controlled dimmable tri-color energy-saving lamp, comprising a first diode D1, a second diode D2, and a fourth capacitor C4 connected in series to form a loop, and a third diode is connected in parallel in the loop The tube D3, the first resistor R1, the seventh diode D7 and the first triode Q1, a fourth diode D4 is connected in series at the positive end of the third diode D3, the first diode D1 and Between the second diode D2, between the third diode D3 and the fourth diode D4 are respectively connected to an external 220V AC power supply, and between the second diode D2 and the fourth capacitor C4 is connected in parallel A filter oscillation circuit, one end of the first resistor R1 and the seventh diode D7 are respectively connected to the filter oscillation circuit, the filter oscillation circuit includes a first capacitor C1 connected in series, a first pulse transformer T1, an energy-saving lamp DG and the third capacitor C3, the emitter of the first transistor Q1 is connected to the collector of the second transistor Q2 through the fourth resistor R4, and the emitter of the second transistor Q2 is connected to the collector of the second transistor Q2 through the fifth resistor R5 is connected to the filter oscillating circuit, the base of the second triode Q2 is connected to the filter oscillating circuit through the third resistor R3, and the base of the second triode Q2 is connected to the filter oscillating circuit. Six diodes D6, the base of the first triode Q1 is connected to the filter oscillation circuit through the fifth diode D5, a third pulse transformer T3 is connected in parallel at both ends of the first capacitor C1, and a third pulse transformer T3 is connected in parallel with the first pulse transformer One end of T1 is connected in parallel with a second pulse transformer T2, one end of the second pulse transformer T2 is connected to the fifth diode through a second resistor R2, and a second capacitor C2 is connected in parallel with the energy-saving lamp DG;

Working process: The external 220V AC power supply is rectified by D1, D2, D3, and D4 diodes, and then oscillated by the transistors Q1 and Q2 connected in series. Flow coil, filter oscillation circuit, and capacitors C1 and C2 form a loop, and when the circuit oscillates, it outputs a suitable voltage and current to drive the lamp to emit light.

The beneficial effects of the utility model are: the utility model changes the structure of the traditional drive, so that the work is stable and reliable, the service life is long, and the cost performance is high. It is a drive device with strong universality and wide practical range.

Description of drawings

Fig. 1 is the circuit schematic diagram of the utility model.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

As shown in Figure 1, a voltage-controlled dimmable energy-saving lamp with three primary colors includes a first diode D1, a second diode D2, and a fourth capacitor C4 connected in series to form a loop. A third diode D3, a first resistor R1, a seventh diode D7 and a first triode Q1 are connected in parallel, and a fourth diode D4 is connected in series at the positive end of the third diode D3. Between a diode D1 and the second diode D2, between the third diode D3 and the fourth diode D4 are respectively connected to an external 220V AC power supply, and between the second diode D2 and the fourth diode D4 A filter oscillation circuit is connected in parallel between the capacitors C4, one end of the first resistor R1 and the seventh diode D7 are respectively connected to the filter oscillation circuit, and the filter oscillation circuit includes a first capacitor C1, a first pulse Transformer T1, energy-saving lamp tube DG and third capacitor C3, the emitter of the first transistor Q1 is connected to the collector of the second transistor Q2 through the fourth resistor R4, and the second transistor Q2 The emitter is connected to the filter oscillating circuit through the fifth resistor R5, the base of the second triode Q2 is connected to the filter oscillating circuit through the third resistor R3, and the base of the second triode Q2 is connected to the filter oscillating circuit A sixth diode D6 is also connected between them, the base of the first triode Q1 is connected to the filter oscillation circuit through the fifth diode D5, and a third pulse transformer T3 is connected in parallel at both ends of the first capacitor C1 A second pulse transformer T2 is connected in parallel to one end of the first pulse transformer T1, and one end of the second pulse transformer T2 is connected to the fifth diode D5 through a second resistor R2, and a second capacitor C2 is connected in parallel to the energy-saving lamp DG ;

Working process: The external 220V AC power supply is rectified by D1, D2, D3, and D4 diodes, and then oscillated by the transistors Q1 and Q2 connected in series. Flow coil, filter oscillation circuit, and capacitors C1 and C2 form a loop, and when the circuit oscillates, it outputs a suitable voltage and current to drive the lamp to emit light.

Use two NPN high-voltage transistors, five 1/2W and 1/4W resistors, two electrolytic capacitors, one choke pulse transformer, two 1N4148 diodes, five 1N4007 diodes, and two polyester capacitors.

Each element value in the embodiment is:

Resistance: R1＝560kΩ (1/4W), R2＝R3＝22Ω;

R4＝R5＝2Ω(1/2W)

Capacitor: C2: CL11.1250V.472; C3: CL11.400V.473;

Electrolysis: C1＝4.7μF (DC50V), C4＝4.7μF (DC400V)

Transformer: T: Pulse Transformer Oscillation Coil (E19)

Transistor: Q1=Q2MJE13005

Diode: D1=D2=D3=D4=D6=D7=1N4007; D5=1N4148.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (1)

1. A voltage-controlled dimmable tri-color energy-saving lamp, characterized in that: it includes a first diode (D1), a second diode (D2) and a fourth capacitor (C4) connected in series to form a loop. ), the third diode (D3), the first resistor (R1), the seventh diode (D7) and the first triode (Q1) are connected in parallel in the loop, and the third diode (D3 ) is connected in series with a fourth diode (D4), between the first diode (D1) and the second diode (D2), the third diode (D3) and the fourth diode The tubes (D4) are respectively connected to an external 220V AC power supply, a filter oscillation circuit is connected in parallel between the second diode (D2) and the fourth capacitor (C4), and the first resistor (R1) and the fourth capacitor (C4) are connected in parallel. One ends of the seven diodes (D7) are respectively connected to the filter oscillation circuit, and the filter oscillation circuit includes a first capacitor (C1), a first pulse transformer (T1), an energy-saving lamp (DG) and a third Capacitor (C3), the emitter of the first transistor (Q1) is connected to the collector of the second transistor (Q2) through the fourth resistor (R4), and the collector of the second transistor (Q2) The emitter is connected to the filter oscillating circuit through the fifth resistor (R5), the base of the second triode (Q2) is connected to the filter oscillating circuit through the third resistor (R3), and the second triode (Q2) A sixth diode (D6) is also connected between the base of the ) and the filter oscillation circuit, and the base of the first triode (Q1) is connected to the filter oscillation circuit through the fifth diode (D5), A third pulse transformer (T3) is connected in parallel at both ends of the first capacitor (C1), and a second pulse transformer (T2) is connected in parallel at one end of the first pulse transformer (T1). The second resistor (R2) is connected to the fifth diode (D5), and a second capacitor (C2) is connected in parallel with the energy-saving lamp (DG).