CN203377076U - Monopole flyback PFC transformer of LED driver - Google Patents

Abstract

The utility model provides a monopole flyback PFC transformer of an LED driver. A primary N1 coil and a secondary N2 coil of the transformer wind a magnetic core frame of the transformer. The primary N1 coil of the transformer is multi-strand varnished wires of 40*0.1mm in specification, or varnished wires with different specifications are used according to different power values; the secondary N2 coil of the transformer is two three-layer insulated wires which are copper conductors with the outer diameters of 0.6mm, or three-layer insulated wires with different specifications are used according to the different power values. The monopole flyback PFC transformer of the LED driver has the advantages that the monopole flyback PFC transformer is used on the LED driver, the structure is simple, the price is low, leakage inductance is reduced, the overall efficiency is improved by 3-4%, work is more stable, efficiency is high, and the monopole flyback PFC transformer is safer and more reliable.

Description

A kind of LED driver one pole flyback PFC transformer

[technical field]

The utility model relates to a kind of transformer, relates in particular to a kind of LED driver one pole flyback PFC transformer.

[background technology]

The elementary N1 coil of transformer adopting on the market and secondary N2 coil be the mode of coiling separately, and leakage inductance is strong, efficiency is low, job insecurity, useful life are short, non-refractory.

[utility model content]

The utility model purpose is to solve the separately mode of coiling of the elementary N1 coil of transformer adopting on the market and secondary N2 coil, and leakage inductance is strong, efficiency is low, job insecurity, useful life are short, the deficiency of non-refractory and a kind of New LED driver one pole flyback PFC transformer is provided.

The utility model is achieved through the following technical solutions: a kind of LED driver one pole flyback PFC transformer, the elementary N1 coil of transformer and secondary N2 coil Double-wire parallel wound are on this magnetic core of transformer skeleton.

Further, the specification of the elementary N1 coil of described transformer is 40*0.1mm multiply enamelled wire, or, according to different capacity, uses the enamelled wire of different size.

Further, 2 of the three layer insulation wire * that the specification of the secondary N2 coil of described transformer is copper conductor external diameter 0.6mm, or, according to different capacity, use the three layer insulation wire of different size.

The beneficial effects of the utility model are: simple in structure, reduce leakage inductance, overall efficiency improves each percentage point of 3-4, work more stable, efficiency is high, the life-span is long, safety and reliability, applicable various LED light fixtures.

[accompanying drawing explanation]

Fig. 1 is the utility model LED driver one pole flyback PFC transformer device structure schematic diagram;

Fig. 2 is the utility model winding sequential organization schematic diagram;

Reference numeral: 1, elementary N1 coil; 2, secondary N2 coil; 3, magnetic core framework.

[embodiment]

Below in conjunction with the drawings and the specific embodiments, the utility model is described further:

As shown in Figure 1, a kind of LED driver one pole flyback PFC transformer, the elementary N1 coil 1 of transformer and secondary N2 coil 2 Double-wire parallel wounds are on this magnetic core of transformer skeleton.

Preferably, the specification of the elementary N1 coil 1 of described transformer is 40*0.1mm multiply enamelled wire, or, according to different capacity, uses the enamelled wire of different size

Preferably, 2 of the three layer insulation wire * that the specification of the secondary N2 coil 2 of described transformer is copper conductor external diameter 0.6mm, or, according to different capacity, use the three layer insulation wire of different size.

The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the utility model is not limited to embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection range of claim of the present utility model.In addition, although used some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the utility model.

Claims (3)

1. a LED driver one pole flyback PFC transformer, it is characterized in that: the elementary N1 coil of transformer and secondary N2 coil Double-wire parallel wound are on this magnetic core of transformer skeleton.

2. LED driver one pole flyback PFC transformer according to claim 1, it is characterized in that: the specification of the elementary N1 coil of described transformer is 40*0.1mm multiply enamelled wire, or, according to different capacity, uses the enamelled wire of different size.

3. LED driver one pole flyback PFC transformer according to claim 1, it is characterized in that: 2 of the three layer insulation wire * that the specification of the secondary N2 coil of described transformer is copper conductor external diameter 0.6mm, perhaps, according to different capacity, use the three layer insulation wire of different size.

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