Pu Xingyou, an engineer of Zhejiang Lanxi Electric Light Source Co., Ltd., has been engaged in the research and development of energy-saving lamp electronic ballasts and electronic transformers for 10 years. The company is recognized as the “China's main production and export base for ordinary light bulbs and special light bulbsâ€. .
Reporter: What kind of elements do you need to have in order to start the debugging of energy-saving lamps?
Pugong: First of all, you should be familiar with the circuit, especially the performance of each component. In what position, what role should be used, you must have the most basic understanding; secondly, it is best to have some practical experience, at least use the electric iron, will see Meter readings; again, you need to have strong brain and hands-on ability. So even if you are a layman, as long as you are willing to learn, gradually accumulate, there is no bad light.
Reporter: What kind of instruments do you need to use in the debugging process of energy-saving lamps?
Pugong: First, the standard Power Supply can adjust the voltage from 0V to 300V, can switch the frequency between 50HZ and 60HZ, and has short-circuit leakage protection to prevent people from getting electric shock. The second is a multimeter, an electronic ballast integrated tester or an input/output tester to measure voltage, current and other parameter data related to the ballast. The third is a digital or pointer temperature display, used to measure the temperature of the triode and other components. The fourth is an oscilloscope, which is used to test the working waveform of each pole of the triode.
Reporter: What kind of debugging preparations do you need to do during the actual operation of energy-saving lamp debugging?
Pugong: First, under the voltage of 220V, record the input and output parameters of the lamp, which is convenient for comparison at any time. Second, the test light starts, the test method is, first adjust the voltage of the lamp to 0V, then turn on the power of the lamp, start the voltage from 0V, the voltage when the lamp is completely lit is the minimum starting voltage. Third, the test lamp at 170V, 220V, 260V after 5 minutes of operation and the temperature rise of the triode. As the saying goes, good memory is not as bad as a pen. It is worth reminding that you should record the parameters of each test segment on your notebook, or you can design related table records on the computer to facilitate the next time you turn the lights on and read less.
Reporter: Can you talk about the relevant precautions in circuit debugging?
Pugong: In order to better understand the characteristics and matching of each component during circuit debugging, the rules from shallow to deep should be followed. (1) Firstly make a general adjustment, the initial debugging in the general direction, firstly reduce the atmospheric pressure loss, the atmospheric pressure triode temperature. (2) Perform detailed and comprehensive comprehensive debugging, mainly to debug circuit loss of high, low and normal voltage and temperature rise of triode. (3) Finally, make a fine adjustment, adjust the product power to meet the requirements, adjust some parameters of the product that do not meet the requirements of the standard (the standard here refers to the national standard), and some component parameters are appropriately reduced (such as triode chip) Area, inductive copper wire diameter), in order to achieve the purpose of reducing costs.
1. Light up. Confirm that there are no wrong components, and confirm that the light is on. This is the first step of debugging. If the lights are not lit, there will be no way to debug later.
2. Under the premise of the light on, use the voltage regulator to gradually pressurize from 0V to 220V (note that the 220V voltage is not directly connected, because the circuit is in the initial adjustment stage, if the 220V voltage is directly added, the circuit parameters may not match, resulting in Burn out), observe the start of the lamp, and record the start voltage of the lamp.
3. When conducting the second experiment above, keep an eye on the temperature change of the triode. This is the temperature measurement. In the initial adjustment process, the temperature requirement is 220V, and the temperature rise of the triode does not exceed 20 °C.
Reporter: After the initial adjustment, if you said that it is comprehensive debugging, please elaborate?
Pugong: After the initial adjustment, under the standard voltage of 220V, the main parameters such as Qihui and triode temperature rise reach the basic requirements; but this does not mean that it is an ideal parameter. Therefore, it is necessary to combine the high and low pressure start-up conditions, the temperature rise of the triode during high and low voltage operation and the high and low pressure thermal shock conditions for comprehensive commissioning. Pay attention to the following internal links when debugging.
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