CN214205910U

CN214205910U - Programmable power supply device using external resistance module

Info

Publication number: CN214205910U
Application number: CN202023218313.4U
Authority: CN
Inventors: 胡森; 张正刚; 吴印超; 高夫来; 许若鹏
Original assignee: Adpower Technology Wuxi Co ltd
Current assignee: Adpower Technology Wuxi Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-14
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses an use programmable power supply unit of external resistance module, including power conversion module, signal transmission module, MCU module, interface RJ11, outside programming equipment and resistance module, the MCU module is used for accepting external signal and gives the power conversion module with signal transmission through the signal transmission module, the power conversion module includes BUCK controller U1 and BUCK switch tube Q1, the MCU module is connected with BUCK controller U1 through PWM, BUCK controller U1 is connected with BUCK switch tube Q1's grid. The utility model discloses a can effectively solve the quick delivery problem of power and lamps and lanterns to the programming of finished product power and the reprogramming of lamps and lanterns, have with low costs, easy operation uses nimble convenient advantage.

Description

Programmable power supply device using external resistance module

Technical Field

The utility model relates to a LED technical field especially relates to use programmable power supply unit of external resistance module.

Background

Because the LED has the advantages of long service life, less pollution, high electric energy utilization efficiency and the like, the LED market develops rapidly in recent ten years, and more national clear laws prohibit the use of the traditional energy-saving lamp and the incandescent lamp. However, the LED modules are connected in series and parallel flexibly, which results in a large number of specifications and models of the driving power supply, and such diversity is not suitable for rapid delivery of the driving power supply and the lamp finished products.

The problem of rapid delivery of the power supply and the lamp can be effectively solved by programming the finished power supply and reprogramming the lamp. But in the face of intense competition in the lighting market, solutions need to be met with a small increase in cost. Common solutions are:

the method has the advantages that power supply manufacturers can flexibly program and set parameters such as voltage, current, dimming curves and the like, but the method has the defects that cost is high, and the finished lamps are inconvenient to program again, because many lamps are metal shells, NFC signals cannot penetrate through metal; this is a common solution for high-end markets.

Scheme two, a wired programming scheme is used, which is less costly, but the fixture manufacturer cannot reprogram the finished fixture.

And in the third scheme, a power supply manufacturer is internally provided with a plurality of output specifications, and the power supply and lamp manufacturer selects required current by using a sliding switch or a dial switch.

To sum up, in order to solve the existing problem of the existing finished power supply, the utility model provides a programmable power supply device using an external resistance module.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a programmable power supply device using an external resistance module comprises a power conversion module, a signal transmission module, an MCU module, an interface RJ11, external programming equipment and a resistance module, wherein the MCU module is used for receiving external signals and transmitting the signals to the power conversion module through the signal transmission module, the power conversion module comprises a BUCK controller U1 and a BUCK switch tube Q1, the MCU module is connected with the BUCK controller U1 through PWM, the BUCK controller U1 is connected with a grid electrode of a BUCK switch tube Q1, a drain electrode of the BUCK switch tube Q1 is respectively connected with an output filter capacitor C2 through an inductor L1 and a freewheeling diode D1, a source electrode of the BUCK switch tube Q1 is grounded through a resistance R1, an ESD protection device and a TVS protection device are arranged between the MCU module and the interface RJ11, the ESD protection device comprises resistances R2 and R3, and the TVS protection device comprises diodes D2 and D3, a capacitor C3 is further arranged between the MCU module and the interface RJ11, and the MCU module provides power Vcc and GND for external programming equipment through the interface RJ11

Preferably, the MCU module is connected to a voltage module via a shift voltage selector, the voltage module is divided by Vcc voltage, resistors R5, R6 and R7, resistors R5, R6 and R7 are sequentially connected end to end, one end of the resistor R5 is connected to Vcc, and one end of the resistor R7 is grounded.

Preferably, the reset pin of the MCU module is connected with a resistor R4 and a capacitor C4, the other end of the capacitor C4 is grounded, the other end of the resistor R4 is connected to VCC, and the BUCK controller U1 is grounded via a capacitor C1.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an use pluggable terminal as the unified interface of programming and external switch module, power manufacturer uses this interface programming output specification, and the lamps and lanterns factory selects suitable switch module to configure into required output specification, and finished product lamps and lanterns also can be convenient set up the output like this, can effectively solve the quick delivery problem of power and lamps and lanterns through the programming once more to the programming of finished product power and lamps and lanterns, and is with low costs, and easy operation uses nimble convenient advantage.

Drawings

Fig. 1 is a system block diagram of a programmable power supply apparatus using an external resistance module according to the present invention;

FIG. 2 is a diagram of the hardware connections in the programmable power supply using external resistor modules according to the present invention;

FIG. 3 is a connection diagram of a resistor module in a programmable power supply apparatus using an external resistor module according to the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The first embodiment is as follows:

referring to fig. 1-3, the programmable power supply device using the external resistance module includes a power conversion module, a signal transmission module, an MCU module, an interface RJ11, an external programming device, and a resistance module, wherein the MCU module is configured to receive an external signal and transmit the signal to the power conversion module through the signal transmission module, and is connected to the external programming device or the resistance module through the interface RJ 11;

specifically, the interface RJ11 may be connected to an external programming device to implement a programming function, or may be connected to an external resistor module to implement setting of output parameters, such as output current, voltage, etc., and the external resistor module for setting current may be replaceable, or the power supply may be reconfigured by the programming device to change the output parameters corresponding to the resistor module, and the programming interface of the programming device and the interface of the resistor module may share the same interface RJ11 or different interface devices; the power supply device can be externally connected with any number of resistor modules;

in particular, the programming device may program any parameter in the power supply apparatus, including without limitation dimming depth, lamp-off voltage, output current, current value or duty ratio of each output, etc.; the resistance module can set any parameter of the power supply, including but not limited to dimming depth, lamp-off voltage, output current, current value or duty ratio of each output path, and the like, and the communication mode of the scheme can be serial port or I2C to realize communication;

further, the power conversion module comprises a BUCK controller U1 and a BUCK switch tube Q1, the MCU module is connected with a BUCK controller U1 through PWM, the BUCK controller U1 is connected with a grid electrode of a BUCK switch tube Q1, a drain electrode of a BUCK switch tube Q1 is connected with an output filter capacitor C2 through an inductor L1 and a freewheeling diode D1 respectively, a source electrode of a BUCK switch tube Q1 is grounded through a resistor R1, an ESD protection device and a TVS protection device are arranged between the MCU module and an interface RJ11, the ESD protection device comprises resistors R2 and R3, the TVS protection device comprises diodes D2 and D3, a capacitor 3 is further arranged between the MCU module and the interface RJ11, and the MCU module provides power supply Vcc and GND for external programming equipment through an interface 11;

the MCU module is connected with a voltage module through a gear voltage selector, the voltage module is determined by Vcc voltage and the divided voltage of resistors R5, R6 and R7, the resistors R5, R6 and R7 are sequentially connected, one end of a resistor R5 is connected with VCC, and one end of a resistor R7 is grounded; a reset pin of the MCU module is connected with a resistor R4 and a capacitor C4 to provide a reset function for the power supply device, the other end of the capacitor C4 is grounded, and the other end of the resistor R4 is connected with VCC; BUCK controller U1 is coupled to ground via capacitor C1. The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A programmable power supply device using an external resistance module comprises a power conversion module, a signal transmission module, an MCU module, an interface RJ11, external programming equipment and a resistance module, and is characterized in that the MCU module is used for receiving external signals and transmitting the signals to the power conversion module through the signal transmission module, the power conversion module comprises a BUCK controller U1 and a BUCK switch tube Q1, the MCU module is connected with the BUCK controller U1 through PWM, the BUCK controller U1 is connected with a grid electrode of a BUCK switch tube Q1, a drain electrode of the BUCK switch tube Q1 is respectively connected with an output filter capacitor C2 through an inductor L1 and a freewheeling diode D1, a source electrode of the BUCK switch tube Q1 is grounded through a resistance R1, an ESD protection device and a TVS protection device are arranged between the MCU module and the interface RJ11, the ESD protection device comprises resistances R2 and R3, the S protection device comprises diodes TVD 2 and D3, and a capacitor C3 is also arranged between the MCU module and the interface RJ11, and the MCU module provides power Vcc and GND for external programming equipment through the interface RJ 11.

2. The programmable power supply device using the external resistor module as claimed in claim 1, wherein the MCU module is connected to a voltage module through a shift voltage selector, the voltage module is divided by Vcc voltage, resistors R5, R6 and R7, resistors R5, R6 and R7 are connected end to end in sequence, one end of the resistor R5 is connected to Vcc, and one end of the resistor R7 is connected to ground.

3. The programmable power supply device using the external resistance module as claimed in claim 1, wherein a reset pin of the MCU module is connected with a resistor R4 and a capacitor C4, the other end of the capacitor C4 is grounded, the other end of the resistor R4 is connected to VCC, and the BUCK controller U1 is grounded via a capacitor C1.