LED lamp manufacturers can not ignore ESD

ESD (Electro-Static discharge) is the most common way to damage electronic components. LED lamps involve a variety of electronic components, some of which are sensitive to ESD damage. Once damage occurs, LED lamps will be ineffective or even scrapped.

ESD causes a sudden surge or voltage transient in the current, which is caused by the instantaneous release of stored energy. This release of electrical energy can be released in a predictable manner by controlled switching, or can be released in an unpredictable manner by random introduction of external electrical energy. Any sudden change in current or voltage can cause damage to the electronic components of the LED lamp. .

ESD poses a serious threat to electronic circuits. The most common cause of ESD is friction between two different substances, causing charges to build up on their surfaces and accumulate energy. The surface of the human body is often rubbed by different objects such as clothing, and this static charge voltage can often be as high as 15,000 volts. When riding a bicycle, the thigh is often painful. It is ESD discharge. When the voltage reaches several thousand volts, the ESD discharge will be perceived as pain. The lower discharge voltage is often undetected, but it can cause the electronic components of the LED lamp. damage.

The first way to transmit static electricity is to conduct air discharge. The main protective measure for induced air discharge is shielding. The main consideration is the structure of LED lamps. The conduction protection is mainly absorption. We only need to add anti-ESD devices before the ports that need to be protected.

The key to effective ESD protection is to limit the voltage at which ESD occurs, making it within the safe voltage range of the LED lamp. The SPA can avoid the impact of ESD. First, the diode will absorb the instantaneous change, and then the current will be guided. Secondly, the avalanche diode or Zener diode will limit the voltage level. The voltage limiting and current limiting prevent the LED lamp from being damaged due to transient changes exceeding the rated value.

Intelligent control of LED lights requires sensitive user interaction, including fast control and signal feedback, which relies on microchip sets, interfaces and ports, which are very sensitive to ESD and therefore require better anti-static protection.

The easiest way to achieve effective ESD protection is to ground, provide a grounded low-impedance current path, and the buried plate needs to dig deep and apply conductive materials such as salt water. To ensure effective construction of two buried plates, and to implement strict resistance Electrostatic operation procedures.

The electrical capacity of the LED lamp board and the ESD level required by the board need to be paid special attention during the production process. LED lamp companies need to be equipped with a static-free workbench, and the LED lighting after-sales maintenance engineers also need to strengthen this. Aspects of training.