CN210578539U

CN210578539U - Circuit based on power line carrier configuration and upgrading power supply

Info

Publication number: CN210578539U
Application number: CN201921573054.1U
Authority: CN
Inventors: 李志科
Original assignee: Shenzhen Watt Zhihui Technology Co Ltd
Current assignee: Shenzhen Watt Zhihui Technology Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-19
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a circuit based on power carrier configuration and upgrading power, including the host computer, PLC module one and LED driver, the host computer is connected with PLC module one, PLC module one is connected with the LED driver, and be connected with electric capacity C2 between PLC module one and the LED driver, wherein, the LED driver includes the Feedback circuit, power control module, inductance L, resistance R, triode Q, diode D, electric capacity C2 and electric capacity Cout, power control module respectively with the Feedback circuit, diode D's positive pole, triode Q's projecting pole, electric capacity C1's one end, electric capacity Cout's one end and PLC module connection. Has the advantages that: the utility model discloses a bias voltage supplies power for the inside demodulation power supply control circuit of power, can realize the effective transmission of signal to support the multimachine configuration simultaneously and upgrade.

Description

Circuit based on power line carrier configuration and upgrading power supply

Technical Field

The utility model relates to a LED power technical field particularly, relates to a circuit based on power line carrier configuration and upgrading power.

Background

With the large consumption of energy resources, the climate deteriorates due to the greenhouse effect. In order to respond to the national green environmental protection requirements such as energy conservation and emission reduction. The LED power supply has high efficiency, long service life, small volume and light weight, meets the requirements of the times and gradually occupies a main position in the market.

The output voltage of a common LED power supply is variable within a certain range, and the current is constant. Due to the fact that lamp beads of different lamp manufacturers are flexible in series-parallel mode structure, the power-off section is adaptive to output voltage, and the output current variation range is relatively large. The related power sections of the common power supply cannot be completely compatible with market requirements, so that the types of power supplies in the same power section are increased. The power supply has various kinds, and the research and development and production investment of production manufacturers is increased. In order to make full use of production resources, the LED power supply which is designed, researched and developed and is compatible with wider width meets the requirement of the era. At present, in order to effectively improve the compatibility of the LED power supply in the market, an adjustable LED power supply with greatly adjustable output voltage and current ranges appears. The following five adjusting techniques are mainly adopted by the adjustable LED power supply, and the related schematic diagram is as follows (MCU is not necessary): as shown in fig. 1, an adjustable LED power supply using a potentiometer (adjustable resistor) to change the output voltage or output current; as shown in fig. 2, an adjustable power supply for changing output voltage or output current by using a dimming line; as shown in fig. 3, an adjustable power supply for changing output voltage or output current of a power supply is configured by adopting an infrared protocol; as in fig. 4, an adjustable LED power supply that changes output voltage or output current using an RFID configuration power supply; referring to fig. 5, the power supply is configured with a power carrier low-voltage 220V input line to change the adjustable LED power supply of the output voltage or the output current. The power supply meets the requirements of greater compatibility, is beneficial to the full utilization of production materials, saves production resources, reduces the investment of developing multiple models, saves energy and the like.

In fig. 1, the voltage at two ends of the resistor is changed by using the change of the resistance value of the adjustable resistor. This voltage can be used directly as the current reference voltage of the feedback circuit (as shown in fig. 6) to change the output current. The voltage can also be sampled by MCUADC, and the current loop reference voltage is provided through the MCUIO port, changing the output current. (in this way cost factors are taken into account). The output voltage can be adjusted by changing the reference voltage of the output voltage ring through the adjustable resistor, so that the output is adjusted. The circuit is relatively simple and has high reliability. The cost is relatively low. The configuration mode is simple, but needs to be configured one by one, the production convenience is relatively poor, the linearity of the configuration parameters is limited by surrounding elements, and the function is single.

Fig. 2 adopts a method of sampling a 0-10V voltage signal (or PWM) on a dimming line through an MCUADC sampling dimming line, and a program is programmed to provide a current loop reference voltage through an MCU IO port to change an output current, and similarly, the voltage, and also to directly configure a full-load output voltage current parameter through a communication line. Due to the fact that the MCU participates in control, complex control algorithms such as light attenuation compensation and linearity compensation can be achieved. But the cost is relatively high, the development period is long, the output needs to be isolated, and the control mode is relatively complex.

Fig. 3 adopts an infrared transmitting and receiving diode, communicates with an MCU through an infrared protocol, programs are programmed to provide a current loop reference voltage through an MCU IO port, output current is changed, voltage is the same, the circuit is relatively simple, and complex control algorithms such as light decay compensation and linearity compensation can be implemented. However, the communication is easily interfered by visible light, configuration parameters can be completed only by inputting power-on operation, and multi-machine configuration is not supported.

Fig. 4 adopts RFID, communicates with MCU through near field, writes programs to provide current loop reference voltage through MCU IO port, changes output current, and voltage can realize complex control algorithms such as optical attenuation compensation, linearity compensation, etc., and is convenient to produce and manufacture, but it is not necessary to input power to configure communication distance to be limited by NFC reader power, and antenna matching has high requirements for developers and high cost.

Fig. 5 adopts an input line power carrier module or chip to communicate with the MCU, and the programming program provides a current loop reference voltage through the MCU IO port, changes the output current, and similarly the voltage, so that a complex control algorithm can be implemented, but the cost is high, the input 220V communication circuit needs various protection measures, the communication is easily affected by the background noise of the power grid, and the circuit is complex.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides a circuit based on power line carrier configuration and upgrading power to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

a circuit for configuring and upgrading a power supply based on power carrier waves comprises an upper computer, a PLC module I and an LED driver, wherein the upper computer is connected with the PLC module I, the PLC module I is connected with the LED driver, and a capacitor C2 is connected between the PLC module I and the LED driver;

the LED driver comprises a Feedback circuit, a power control module, an inductor L, a resistor R, a triode Q, a diode D, a capacitor C2 and a capacitor Cout, wherein the power control module is respectively connected with the Feedback circuit, the anode of the diode D, the emitter of the triode Q, one end of the capacitor C1, one end of the capacitor Cout and the PLC module are connected, the anode of the diode D is grounded, the cathode of the diode D is respectively connected with one end of the resistor R and the base of the triode Q, the collector of the triode Q is respectively connected with the other end of the resistor R, one end of the inductor L, the other end of the capacitor C1 and one end of the capacitor C2, the other end of the inductor L is connected with the other end of the capacitor Cout, and the other end of the capacitor C2 is connected with the PLC module I.

Furthermore, the power control module comprises a MCU and a PLC module II, and the MCU is connected with the PLC module II.

Further, power control module still includes ADJ pin, GND pin and VCC pin, wherein, power control module passes through the ADJ pin with the ADJ pin of Feedback circuit is connected, power control module passes through the GND pin with diode D's anodal is connected and ground connection, power control module passes through the VCC pin with triode Q's projecting pole is connected, power control module still passes through PLC control module two respectively with electric capacity C1's one end electric capacity Cout's one end with PLC module one is connected.

Further, the first PLC module and the second PLC module each include a power carrier hardware circuit, a power carrier IC, and a power carrier SOC.

Further, the host computer the first PLC module the second PLC module and the MCU are all provided with RX pin and TX pin, just the first PLC module with between the host computer the second PLC module with all through USART serial ports connection between the MCU.

Further, the diode D is a zener diode.

Further, the triode Q is an NPN type triode.

The utility model has the advantages that:

1. the utility model discloses a use of multiplexing output line for it can need not alright realization under the condition that other wires used to the configuration of output voltage and electric current.

2. The utility model discloses support the multimachine configuration, production efficiency is high, and transmission distance is far away, and anti-interference effect is good.

3. The utility model discloses can realize complicated control algorithm, support the upgrading of follow-up procedure simultaneously, better satisfy the change of market demand, improve the compatibility greatly for in addition, the utility model discloses make the power develop to compound multi-functional series by function singleness series, be fit for enterprise mass production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art adjustable LED power supply using a potentiometer (adjustable resistor) to change the output voltage or current;

FIG. 2 is a schematic diagram of a prior art adjustable power supply using a communication line or a dimming line to vary output voltage or output current;

FIG. 3 is a schematic diagram of a prior art adjustable power supply employing an IR protocol to configure the power supply to vary output voltage or output current;

FIG. 4 is a schematic diagram of a prior art tunable LED power supply using an RFID configured power supply to vary output voltage or output current;

FIG. 5 is a schematic diagram of a prior art adjustable LED power supply using a power carrier low voltage 220V input line to configure the power supply to vary output voltage or output current;

FIG. 6 is a circuit diagram of a prior art current Feedback circuit;

fig. 7 is a schematic circuit diagram of a power line carrier based configuration and upgrade power supply according to an embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a modulation principle of PLC module signals in a circuit based on power carrier configuration and power upgrade according to an embodiment of the present invention;

fig. 9 is a schematic waveform diagram illustrating a PLC module signal modulation principle in a circuit based on power carrier configuration and power upgrade according to an embodiment of the present invention;

fig. 10 is a schematic diagram illustrating a signal demodulation principle of a PLC module in a circuit based on power carrier configuration and power upgrade according to an embodiment of the present invention;

fig. 11 is a schematic waveform diagram of a PLC module signal demodulation principle in a circuit based on power carrier configuration and an upgraded power supply according to an embodiment of the present invention.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a circuit based on power line carrier configuration and upgrading power.

Referring now to the drawings and the detailed description, as shown in fig. 7-11, according to the embodiment of the present invention, a circuit for configuring and upgrading power supply based on power carrier, which uses bias voltage to supply power to the demodulation power supply control circuit inside the power supply through multiplexing output lines, can realize effective transmission of signals, and support simultaneous configuration and upgrading of multiple machines; in addition, the output line transmits signals in a power carrier mode, and the configuration of a power supply and the upgrading of a control program can be realized. The circuit comprises an upper computer, a PLC module I and an LED driver, wherein the upper computer is connected with the PLC module I, the PLC module I is connected with the LED driver, and a capacitor C2 is connected between the PLC module I and the LED driver;

The power control module comprises an MCU and a PLC module II, and the MCU is connected with the PLC module II.

Specifically, power control module still includes ADJ pin, GND pin and VCC pin, wherein, power control module passes through the ADJ pin with the ADJ pin of Feedback circuit is connected, power control module passes through the GND pin with diode D's positive pole is connected and ground connection, power control module passes through the VCC pin with triode Q's projecting pole is connected, power control module still passes through PLC control module two respectively with electric capacity C1's one end electric capacity Cout's one end with PLC module one is connected.

The first PLC module and the second PLC module respectively comprise a power carrier hardware circuit, a power carrier IC and a power carrier SOC.

The host computer PLC module one PLC module two with all be provided with RX pin and TX pin on the MCU, just PLC module one with between the host computer PLC module two with all through USART serial ports connection between the MCU.

The diode D is a voltage stabilizing diode, and the triode Q is an NPN type triode.

In this implementation, the utility model adopts a power line carrier communication mode to realize the configuration and upgrade of the power supply control program, so that the power supply output parameters are flexible and adjustable, and the functions are more powerful; generally, the output voltage of a general power supply has large variation and even high-voltage output, so that if a control circuit is directly connected with an output line, the output voltage is easily limited when the control circuit outputs normal load, and when the output voltage is high, a pin bears higher voltage stress and even is damaged. And different output voltages, pursuing reliability, sampling parameters needing corresponding change, the power supply being susceptible to the control circuit to influence the precision of the output parameters, easy operability and compatibility are greatly discounted. Therefore, the utility model discloses a power line carrier communication mode, owing to have the inside common mode coil of coupling circuit and electric capacity, output direct current voltage is not influenced with control circuit mutual independence, and control circuit sampling parameter need not to change according to output voltage's difference. The operability and reliability are high, and the precision of the output parameter is not influenced by an control circuit.

As shown in FIG. 7, the utility model discloses an output line power line carrier module or chip and MCU communication compile the procedure and provide current loop reference voltage through MCU IO mouth, change output current, voltage is the same reason. And the output lines are multiplexed, so that complex control algorithms such as light attenuation compensation and linearity compensation can be realized. The off-line configuration parameters or the upgrading program are supported, the multi-machine operation is supported, the production is convenient, and the burning voltage directly utilizes the modulation voltage. The complexity is lower than that of the figure 5, the output does not need to be isolated, and the cost performance is high.

As shown in fig. 8, it is a schematic diagram of a modulation principle of a PLC module signal in a circuit based on power carrier configuration and an upgrade power supply according to an embodiment of the present invention;

as shown in fig. 9, it is a schematic waveform diagram of a PLC module signal modulation principle in a circuit based on power carrier configuration and an upgrade power supply according to an embodiment of the present invention;

as shown in fig. 10, it is a schematic diagram of a principle of demodulating a PLC module signal in a circuit based on power carrier configuration and an upgrade power supply according to an embodiment of the present invention;

as shown in fig. 11, it is a schematic waveform diagram of the PLC module signal demodulation principle in the circuit based on power carrier configuration and upgrade power supply according to the embodiment of the present invention.

In summary, with the aid of the technical solution of the present invention, through the use of the multiplexing output line, the configuration of the output voltage and the output current can be realized without using other wires; furthermore, the utility model discloses support the multimachine configuration, production efficiency is high, and transmission distance is far away, and anti-interference effect is good.

And simultaneously, the utility model discloses can realize complicated control algorithm, support the upgrading of follow-up procedure simultaneously, better satisfy the change of market demand, improve compatibility greatly for in addition, the utility model discloses make the power develop to compound multi-functional series by the single series of function, be fit for enterprise mass production.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit for configuring and upgrading a power supply based on a power carrier is characterized by comprising an upper computer, a PLC module I and an LED driver, wherein the upper computer is connected with the PLC module I, the PLC module I is connected with the LED driver, and a capacitor C2 is connected between the PLC module I and the LED driver;

2. The circuit for configuring and upgrading a power supply based on a power carrier according to claim 1, wherein the power supply control module comprises a second MCU and a second PLC module, and the second MCU is connected with the second PLC module.

3. The circuit according to claim 1, wherein the power control module further includes an ADJ pin, a GND pin, and a VCC pin, wherein the power control module is connected to the ADJ pin of the Feedback circuit through the ADJ pin, the power control module is connected to the anode of the diode D through the GND pin and grounded, the power control module is connected to the emitter of the transistor Q through the VCC pin, and the power control module is further connected to one end of the capacitor C1, one end of the capacitor Cout, and the PLC module i through the PLC control module ii.

4. The power carrier configuration and upgrade power supply based circuit according to claim 2, wherein the first PLC module and the second PLC module each comprise a power carrier hardware circuit, a power carrier IC, and a power carrier SOC.

5. The circuit of claim 2, wherein the upper computer, the first PLC module, the second PLC module and the MCU are provided with RX and TX pins, and the first PLC module and the upper computer, and the second PLC module and the MCU are connected via USART serial ports.

6. A circuit for configuring and upgrading a power supply based on a power carrier according to claim 1, wherein the diode D is a zener diode.

7. The circuit according to claim 1, wherein the transistor Q is an NPN transistor.