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Device and method for performance analysis of LED power supply

A technology of LED power supply and analysis device, applied in the field of LED lighting, can solve the problems of high input manpower, inaccurate data and high cost, and achieve the effects of high data authenticity, high cost and low cost

Active Publication Date: 2017-01-18
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a brand-new LED performance analysis device and method for the problems of high cost, large manpower input, long time consumption and inaccurate data in the existing electrical parameter testing method

Method used

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  • Device and method for performance analysis of LED power supply
  • Device and method for performance analysis of LED power supply
  • Device and method for performance analysis of LED power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] refer to figure 2 and Figure 5 , the LED power supply performance analysis device includes a wireless module (2), a serial port module (3), an MCU module (4), a relay driver module (5), a relay module array (6), an SPI isolation module (7), and an electric energy measurement module An array (8), an electric energy metering module (9), a test power socket (10), a power module (11), a power socket (12) and a socket array (13). It is characterized by:

[0070] The wireless module (2), the serial port module (3), the relay drive module (5), the relay module array (6), and the SPI isolation module (7) are all connected to the MCU module (4); the serial port module (3) It is connected with a digital controllable power supply (14) and a digital controllable temperature box (15); the relay drive module (5) is connected with a relay module array (6); the digital controllable power supply (14) is connected with a test power socket ( 10) connection; the test power socket (10)...

Embodiment 2

[0073] This embodiment is basically the same as Embodiment 1, and the special features are as follows: the serial port module (3) includes at least one RS232 serial port (31) and one RS485 serial port (32); the RS232 serial port (31) is connected to a digital controllable power supply (14), the RS485 serial port (32) is connected to the digital controllable temperature box (15), and the power pack (16) to be tested is placed in the digital controllable temperature box (15). The SPI isolation module (7) is an optocoupler isolation or magnetic isolation chip. The electric energy metering module (9) includes an isolated power supply module (210), an electric energy metering chip (230) and an SPI isolation module (220), and the isolated power supply module (210) supplies the electric energy metering chip (230) and the SPI isolation module ( 220) power supply; the SPI isolation module (220) is connected to the electric energy metering chip (230), and the SPI isolation module (220) ...

Embodiment 3

[0075] This LED power supply performance analysis method adopts the above-mentioned device for test analysis, and is characterized in that:

[0076] Set the variable range of input voltage V0-Vn, the variable range of temperature T0-Tn, and the variable range of humidity H0-Hn. Set the voltage step Vs, the temperature step Ts, the humidity step Hs, and the stabilization time Time. The specific analysis steps are as follows:

[0077] Step 1: Fix two variables, change one variable, the range of change is the step value, stabilize the set period of Time, and then measure until the power supply is abnormal and the relay is protected, then stop changing the variable, so as to understand the limit working range of a single variable;

[0078] Step 2: Fix one variable, change two variables, the range of change is the step value, stabilize the set period of Time, and then measure until the power supply is abnormal and the relay is protected, then stop changing the variable, so as to un...

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Abstract

The invention relates to an LED power supply performance analysis device. The LED power supply performance analysis device comprises a wireless module, a serial port module, an MCU module, a relay drive module, a relay module array, an SPI isolation module, an electric energy metering module array, an electric energy metering module, a test power supply socket, a power supply module, a power socket and a socket array. By means of the LED power supply performance analysis device, the input voltage of a power supply to be tested, the temperature of a temperature box and the humidity can be automatically set according to requirements of test programs of an upper computer, switch-on and switch-off experiments can be conducted, and all input parameters like power, voltage, current, harmonic waves and power factor can be recorded in an on-line mode. Alternatively, the LED power supply performance analysis device can be inserted between a power package to be tested and a load, and accordingly the output voltage, current, ripple waves, peak value and the like of the power packet can be measured at the same time. A plurality of LED power supplies can be tested through one LED power supply performance analysis device at the same time in an isolated mode without interfering in each other.

Description

technical field [0001] The invention relates to an LED power supply performance analysis device and method, belonging to the field of LED lighting. Background technique [0002] LED has the advantages of high luminous efficiency, long service life, and good stability, and is widely used in the field of lighting. However, the lack of reliability and stability of the LED driving circuit has always hindered the reduction of the cost of the LED lighting system, and restricted the service life and popularization of the LED lighting system. [0003] At present, it is known from the analysis of failure factors of a large number of failed LED lamps that more than half of them are caused by power failure. How to analyze the performance of the power supply in the design stage is a common concern of everyone. [0004] Usually after the power supply is designed, a large number of performance tests need to be done, such as high and low temperature experiments, high temperature and high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/40G01R31/01
Inventor 栾新源刘廷章
Owner SHANGHAI UNIV
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