Jiang Lang only regrets The world is rich and colorful, and I will definitely pass the colorful world to you. I will take you through the changes of the four seasons, and I will take you to read the vast sea of ​​books. And you have not seen my change, you have your standards, I have […]
The concept of reconfigurable antennas was first proposed in the 1983 patent "Frequency Agile, Polariza TIon Diverse Microstrip Antennas and Frequency Scanned Arrays". According to its reconstruction function, it can be mainly divided into frequency reconfigurable an[…]
Traditional street lamps on the streets depend on electricity to illuminate the road. However, Taiwan now has a provincial circuit light that combines solar, LED and intersection monitors. It is not only eye-catching, but also saves 60% of electricity compared to ordinary street lights. According […]
Recently, Apple's retina version of the iPad mini is expected to be postponed again and again. The main reason is the repeated changes in the production plan of the display suppliers. This is due to the fact that there are still many technical problems still existing in various manufac[…]
In recent years, full-color LED displays have gradually occupied the mainstream of the market and become the main source of sales for display manufacturers. With the improvement of the performance of LED products, the brightness, color and white balance of the full-color display achieve ideal result[…]
After the distribution transformer has been operating for a period of time, the transformer oil pressure drop will occur, and even a small amount of water will be released from the oil pillow of some transformers. In severe cases, after the water enters the transformer tank, the insulation[…]
This article refers to the address: http:// 1 power circuit works TCL's IPL32C "two-in-one" power board power supply circuit, as shown in Figure 1. It consists of three parts: one is the PFC power factor correction circuit composed of 1/2 of the STR-E1565; the other is the +12V m[…]