Multifunctional power supply control circuit for T tube

Abstract

The utility model relates to the technical field of LED light control, in particular to a multifunctional power supply control circuit for a T tube, which comprises an input protection module, an EMI filtering module, a main control module, a 2.4 G and microwave module, a power supply module and the T tube, the main control module comprises a chip U1 with the model of BP2956, and the power supply module comprises a chip U2 with the model of BP8519C; the input protection module is electrically connected to the input end of the EMI filtering module, the output end of the EMI filtering module is connected with the positive electrode of the T tube, the HV end of the chip U1 and the DRAIN end of the chip U2, the DRAIN end of the chip U1 is connected with the negative electrode of the T tube, and the PWM end of the chip U1 and the CS end of the chip U2 are connected with the input end of the 2.4 G and microwave module. The purpose of the utility model is to provide the multifunctional power supply control circuit used for the T tube, power is supplied to a T tube product through the primary circuit, power is supplied to the 2.4 G and microwave module through the secondary circuit, the multifunctional power supply control circuit can have remote control illumination and induction functions at the same time, and more use requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED light control technical field, concretely relates to a multifunctional power supply control circuit for T tube. BACKGROUND

[0002] At present, the popular degree of T tube in LED lighting market has been quite common, and the T tube in the market is generally non-dimming product mainly, mainly used as lighting product, limited by the structure and volume of T tube. In today's lighting market increasingly intelligent, the demand of user also increases day by day, and the function of pure lighting product has met the use demand. SUMMARY

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims at providing a multifunctional power supply control circuit for T tube, which can supply power to T tube product through primary circuit and 2.4G and microwave module through secondary circuit, can have remote control lighting and sensing function at the same time, and meets more use demand.

[0004] The utility model is realized through the following technical schemes:

[0005] A multifunctional power supply control circuit for T tube, including input protection module, EMI filter module, main control module, 2.4G and microwave module, power module and T tube, the main control module includes the chip U1 of model BP2956, the power module includes the chip U2 of model BP8519C;The input protection module is connected to the input of EMI filter module, and the output of EMI filter module is connected with the positive pole of T tube, the HV end of chip U1 and the DRAIN end of chip U2 respectively, the DRAIN end of chip U1 is connected with the negative pole of T tube, and the PWM end of chip U1 and the CS end of chip U2 are connected with the input of 2.4G and microwave module respectively.

[0006] Among them, the input protection module includes the fuse resistor F1 and the voltage-dependent resistor, the fuse resistor F1 is connected to the input of EMI filter module, and the voltage-dependent resistor is connected in parallel between the input of EMI filter module.

[0007] Among them, the EMI filter module includes the safety capacitor CX1, the rectifier BD1 and the inductor L1, the safety capacitor CX1 is connected in parallel to the input of rectifier BD1, and the inductor L1 is connected between the input of safety capacitor CX1.

[0008] Among them, the main control module further includes the inductor L2 and the resistance R3, the inductor L2 is connected between the DRAIN end of chip U1 and the negative pole of T tube, and the resistance R3 is connected between the PWM end of chip U1 and the input of 2.4G and microwave module.

[0009] The power supply module further comprises a capacitor C3 connected between VCC and GND of the chip U2 and a capacitor C5 connected between VCC of the chip U2 and an input end of the microwave module.

[0010] The utility model discloses the beneficial effects of:

[0011] The utility model discloses a multifunctional power supply control circuit for T pipe, through being provided with input protection module, EMI filter module, main control module, 2.4G and microwave module and power supply module, through the power supply of primary circuit that main control module constitutes to T pipe product and the power supply of secondary circuit that power supply module constitutes to 2.4G and microwave module, can have remote control lighting and response function simultaneously, satisfies more use demand. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model makes further explanation to the utility model with the drawings, but the embodiment in the drawing does not constitute any limitation to the utility model, and for ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other drawings according to the following drawings.

[0013] Figure 1 It is the circuit schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiment of the utility model is described in detail below in conjunction with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0015] At present, the popularization degree of T pipe in the LED lighting market is quite common, and the T pipe is generally a non-dimming product in the market, mainly used as a lighting product, limited by the structure and volume of the T pipe. In today's increasingly intelligent lighting market, user demand is also increasing, and the function of pure lighting products has met the use demand.

[0016] In order to solve the above problems, the embodiment discloses a multifunctional power supply control circuit for T-tube, comprising an input protection module, an EMI filter module, a main control module, a 2.4G and microwave module, a power supply module and a T-tube, the main control module comprises a chip U1 with a model of BP2956, and the power supply module comprises a chip U2 with a model of BP8519C; the input protection module is electrically connected to the input end of the EMI filter module, the output end of the EMI filter module is connected with the positive electrode of the T-tube, the HV end of the chip U1 and the DRAIN end of the chip U2 respectively, the DRAIN end of the chip U1 is connected with the negative electrode of the T-tube, and the PWM end of the chip U1 and the CS end of the chip U2 are connected with the input end of the 2.4G and microwave module respectively.

[0017] Specifically, the multifunctional power supply control circuit for T-tube of the embodiment can have remote control lighting and sensing functions at the same time and meet more use requirements by being provided with the input protection module, the EMI filter module, the main control module, the 2.4G and microwave module and the power supply module, and by the first-stage circuit composed of the main control module supplying power to the T-tube product and the second-stage circuit composed of the power supply module supplying power to the 2.4G and microwave module.

[0018] Further, the input protection module comprises a fuse resistor F1 and a pressure-sensitive resistor, the fuse resistor F1 is connected to the input end of the EMI filter module, and the pressure-sensitive resistor is connected in parallel between the input ends of the EMI filter module. The fuse resistor F1 plays a role of fusing protection of the subsequent circuit when overcurrent occurs; when the circuit is affected by lightning or overvoltage, the pressure-sensitive resistor will break down quickly and present a short-circuit state, thereby limiting the voltage within a safe range.

[0019] Further, the EMI filter module comprises a safety capacitor CX1, a rectifier BD1 and an inductor L1, the safety capacitor CX1 is connected in parallel to the input end of the rectifier BD1, and the inductor L1 is connected between the input ends of the safety capacitor CX1. In the embodiment, the safety capacitor CX1 and the inductor L1 form a half-Π filter circuit, the safety capacitor CX1 suppresses differential mode interference; and the inductor L1 plays an EMI suppression role in the circuit.

[0020] Further, the main control module further comprises an inductor L2 and a resistor R3, the inductor L2 is connected between the DRAIN end of the chip U1 and the negative pole of the T-tube, and the resistor R3 is connected between the PWM end of the chip U1 and the input end of the 2.4G and microwave module. In the embodiment, after the HV end of the chip U1 is powered, the high-voltage starting chip works, the DRAIN end outputs a high-level signal, the internal MOS tube of the chip U1 is driven to work, and the inductor L2 stores energy; when the CS end of the chip U1 detects that the output current exceeds a threshold value, the MOS tube stops, high-frequency switching is realized through the MOS tube, and working voltage is provided for the T-tube product; and the PWM end of the chip is connected to the 2.4G and microwave module after interference signals are filtered through the resistor R3, and port signal intercommunication is realized.

[0021] Further, the power supply module further comprises a capacitor C3 and a capacitor C5, the capacitor C3 is connected between the VCC and the GND of the chip U2, and the capacitor C5 is connected between the VCC of the chip U2 and the input end of the microwave module. In the embodiment, the output end of the rectifier module is connected to the chip U2 after filtering through the capacitor C4, the voltage does not need to be started by the resistor and is directly charged to the capacitor C3 through the Drain end, when the VCC voltage reaches 7V, the chip starts to work; the capacitor C5 is connected between the output V+(5V) / GND end, as a filtering function, reduces the output ripple, and guarantees the speed of the dynamic load response; and the +5V is connected to the 2.4G and microwave module to normally start working.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalent, without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A multifunctional power supply control circuit for a T-tube, characterized by, The input protection module, the EMI filter module, the main control module, the 2.4G and microwave module, the power supply module and the T tube are connected electrically. The input protection module is connected to the input end of the EMI filter module, the output end of the EMI filter module is connected to the positive pole of the T tube, the HV end of the chip U1 and the DRAIN end of the chip U2 respectively, the DRAIN end of the chip U1 is connected to the negative pole of the T tube, the PWM end of the chip U1 and the CS end of the chip U2 are connected to the input end of the 2.4G and microwave module respectively.

2. The multifunctional power supply control circuit for a T-tube according to claim 1, wherein The input protection module includes the fuse resistor F1 and the pressure sensitive resistor, the fuse resistor F1 is connected to the input end of the EMI filter module, and the pressure sensitive resistor is connected in parallel between the input ends of the EMI filter module.

3. The multifunctional power supply control circuit for a T-tube according to claim 1, wherein The EMI filter module includes the safety capacitor CX1, the rectifier BD1 and the inductor L1, the safety capacitor CX1 is connected in parallel to the input end of the rectifier BD1, and the inductor L1 is connected between the input ends of the safety capacitor CX1.

4. The multifunctional power supply control circuit for a T-tube according to claim 1, wherein The main control module further includes the inductor L2 and the resistor R3, the inductor L2 is connected between the DRAIN end of the chip U1 and the negative pole of the T tube, and the resistor R3 is connected between the PWM end of the chip U1 and the input end of the 2.4G and microwave module.

5. The multifunctional power supply control circuit for a T-tube according to claim 1, wherein The power supply module further includes the capacitor C3 and the capacitor C5, the capacitor C3 is connected between the VCC and the GND of the chip U2, and the capacitor C5 is connected between the VCC of the chip U2 and the input end of the microwave module.

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