I have bought this industrial switching power supply for more than 2 years. The price is 1200+. But strangely, its ripple parameter is higher than the ripple of a similar domestic brand switching powe
ARM has added SysTick to the kernel since Cortex, which provides convenience for system operation. By studying the structures and registers of these three processors, we can see that the structures an
[i=s]This post was last edited by 向阳xl on 2019-11-27 15:24[/i]Origin of the problem: In order to simplify the circuit and reduce costs, it is hoped to realize an active second-order low-pass filter po
RoHS (Reduction of Hazardous Substances) regulations restrict the use of lead, cadmium, mercury and hexavalent chromium compounds in PCB manufacturing and board assembly, forcing circuit board manufac
TI wireless module CC2500 is a RF chip working at 2.4GHZ. Its typical application circuit is as follows:However, developers can buy ready-made CC2500 wireless modules. There are specialized manufactur
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