The topic of the school competition. Input 24V and make a constant current source for LED! I used the most typical operational amplifier to control the power tube principle to make a constant current
[i=s]This post was last edited by bigbat on 2019-1-8 11:39[/i] I have been using power modules from Jinshengyang and Meanwell for my projects, but they are too expensive. A 2W AC-DC output 5V, input 2
Figure 3 is a waveform diagram of the entire echo, with sinusoidal echoes of different amplitudes at different locations. I want to determine the time of echo at different positions. The current idea
I recently got a TFT, the main control chip is ST7781R, and my screen uses SPI for data transmission.I have to say that this is not done using the SPI module, but by simulating the SPI using the IO po
In 2006, the motor industry was greatly affected by the surge in raw material prices, but many companies minimized losses under pressure and achieved hard-won and gratifying results. Looking forward t
They are freshmen (private college), the kind with very poor college entrance examination scores. Their school gave them Tong Shibai's Analog Electronics. The school is really nonsense. How can they o