CN202035201U - LED (light-emitting diode) energy-saving lamp integration module - Google Patents

Abstract

The utility model discloses an integrated module of an LED energy-saving lamp that can be directly powered by commercial power, comprising an IC constant current voltage stabilizing chip, an adjusting resistor, a rectifying diode, a current blocking diode and a load LED, and an IC constant current voltage stabilizing chip The chip and the adjustment resistor form an IC constant current source, the input end of the IC constant current source is electrically connected to the rectifier diode _D1 , and the output end of the IC constant current source is electrically connected to the load LED and the current blocking diode _D2 to form The load LED constant current drive circuit, the load LED constant current drive circuit can be connected in reverse in two groups, packaged into a 14-pin integrated circuit, directly driven by the mains, the current intensity in the load LED constant current drive circuit is controlled by the IC constant current Regulator chip and adjust the resistance to achieve the purpose of constant current.

Description

LED energy-saving lamp integrated module

technical field

The utility model relates to a technical application device of an LED energy-saving lamp, in particular to an integrated module of an LED energy-saving lamp with high power consumption efficiency, simple structure, low cost and extraordinary service life.

Background technique

At present, there are many kinds of known LED energy-saving lamp products. According to the power source, the first type uses mains power as the power source, and the other type uses solar energy as the power source; the mains power source is relatively popular, and its power adapter often uses PWM The technical switching power supply constant current source is used as a power adapter, but the switching power supply technology is complex, the overall cost is high, and there is EMI electromagnetic pollution, and a low-cost LED energy-saving lamp integrated module that can really replace the PWM switching power supply is on the market. not found yet. Since the switching power supply type constant current source power adapter circuit adopts high-frequency signal modulation, and high-current power conversion inevitably has electromagnetic radiation leakage, and the strict control of the cost of the constant current source makes the investment in electromagnetic shielding measures insufficient, to a certain extent Cause electromagnetic pollution to the surrounding environment. In addition, the switching power supply adapter circuit components are relatively large, and the size is large. Measurement and debugging must rely on instruments and meters. The circuit reliability model is relatively complicated, and the energy conversion efficiency is only about 80, that is to say, The existing LED energy-saving lamp products have the defects of low efficiency, complex structure, high cost, short life and electromagnetic pollution.

Contents of the invention

In order to achieve the purpose of high power consumption efficiency, simple structure, low cost and extraordinary lifespan of LED energy-saving lamps, the utility model provides an integrated module of LED energy-saving lamps. Long, simple structure, low cost, no electromagnetic pollution.

Technical solution: The technical solution adopted by the utility model to solve its technical problems is: based on the theory of PWM switching power supply constant current source, at least one IC constant current voltage regulator chip is connected to the LED energy-saving lamp integrated circuit, one adjustment resistor and two rectifiers The diode and the load LED, the IC constant current regulator chip and the adjustment resistor form the IC constant current source, the input terminal of the IC constant current source is electrically connected with the rectifier diode _D1 , and the output terminal of the IC constant current source is connected to the load LED and the rectifier diode D ₂ are electrically connected, the rectifier diode D ₁ and the rectifier diode D ₂ are directly connected to the mains, and the mains is directly added to the IC constant current source after rectification to form a constant current to drive the load LED to emit light. The current intensity in the drive circuit is achieved by the IC constant current voltage regulator chip and the adjustment resistor to achieve the purpose of constant current.

Beneficial effects: Since the integrated module of LED energy-saving lamp provided by the utility model adopts integrated devices, and the peripheral circuit components matched with it are simplified, it is a kind of high-efficiency and energy-saving light source, which can be directly powered by commercial power and has a structure Simple, low cost, long life, no electromagnetic pollution.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

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

Fig. 2 is the schematic diagram of the application circuit of the utility model embodiment

In the figure (1) constant current regulator chip, (2) adjustment resistor, (3) IC constant current source, (4) load LED, (5) rectifier diode D ₁ , (6) current blocking diode D ₂

Specific examples:

In Fig. 1, the described LED energy-saving lamp integrated module at least includes an IC constant current regulator chip (1), an adjustment resistor (2), a rectifier diode D ₁ (5), a current blocking diode D ₂ (6 ) and the load LED (4), the mains power is used to directly drive the load LED (4), and the input terminal of the IC constant-current voltage regulator chip (1) is electrically connected with the rectifier diode D ₁ (5), and the constant-current voltage regulator chip The output terminal of (1) is electrically connected to the positive pole of the load LED (4), and the adjustment resistor (2) is electrically connected to the adjustment pole of the IC constant current voltage stabilizing core (1) and the positive pole of the load LED (4). The pressure chip (1) and the adjustment resistor (2) form an IC constant current source (3), the output current of the IC constant current source (3) is the same as the load current of the load LED (4), and the negative pole of the load LED (4) is connected to the current blocking diode D ₂ (6) are electrically connected to form a constant current load LED (4) driving circuit, which is powered by mains power. The current drive circuit has two sets of reverse and connected together, packaged into a double-row 14-pin integrated circuit, directly driven by the mains, the 1st and 14th pins and the 7th and 8th pins are power input terminals, D ₁ D ₃ is Rectifier diode, D ₁ is connected to pins 6 and 7, D ₃ is connected to pins 13 and 14, D ₂ and D ₄ are blocking diodes, D ₂ and D _{4 are respectively connected to pins 2, 3 and 4} and pins 9, 10, Pin 11, the IC constant current source (3) is connected to pins 5 and 6 and pins 12 and 13 respectively, each set of constant current drive circuits has an inductance L and a capacitor component, and the two sets of load LEDs (4) are respectively Connected to pins 4 and 5 and pins 11 and 12 of the integrated circuit.

In addition, it should be noted that: based on the principle of the technical solution, there can be various circuit combinations. Those skilled in the art should understand that the technical solution of the present invention can still be modified and equivalently replaced, and none of these can deviate from the technical solution. The spirit and scope of the invention should be included in the protection scope of the claims of the present invention.

Claims (1)

1. a LED electricity-saving lamp integration module comprises an IC constant current voltage stabilizing chip (1), and one adjusts resistance (2), a rectifier diode D ₁(5), one every stream diode D ₂And load LED (4), it is characterized in that: described IC constant current voltage stabilizing chip (1) input and rectifier diode D ₁(5) be electrically connected, the output of this constant current voltage stabilizing chip (1) is connected with load LED (4) positive electrical, described adjustment resistance (2) is adjusted the utmost point with IC constant current voltage stabilizing core (1), load LED (4) positive electrical is connected, IC constant current voltage stabilizing chip (1) with adjust resistance (2) and form IC constant-current source (3), described load LED (4) negative pole with every stream diode D ₂(6) be electrically connected, current strength is determined by IC constant current voltage stabilizing chip and adjustment resistance in the constant-current driving loop, described constant-current driving loop can two groups oppositely connects together, be packaged into 14 pin integrated circuits, directly drive with civil power, respectively there are an inductance L and a capacitance component in periphery, every group of constant-current driving loop, two groups of load LED (4) are connected to integrated circuit the 4th, 5 pin and the 11st, 12 pin, and the city is connected electrically in integration module the 1st, 14 pin and the 7th, 8 pin.

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