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About Maydori

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  1. Today I want to share a project of making a portable speaker. You all have seen portable speakers becominng popular these days but most of them are quite expensive so I am going to show you how to make you own portable speakers with minimum parts. It will only takes 1 hours to make and test , and it can run on any usual usb charger. SO, lets get started! Step 1: Getting parts and tools Parts required A Amplifier circuit/op amp circuit ( I used a PAM8403 class D 2-channel amplifier circuit, you can buy it here :http://www.kynix.com/Detail/647721/PAM8403.html.) A proje
  2. Hello, Recently I am trying to use TPS7A3001(datasheet) for providing clean and stable +5 and -5 V power for my PCBs. I am aware that the output voltage is adjustable by changing the values of external resistors which is connected between the OUT pin and GND. After reading the datasheet, I have some questions: 1, Basically I know one rule is that the current should be greater than 5 uA. But is there any criteria for selecting proper values of resistors? e.g. I can choose two resistors of 10 K and 20 K or 100 K and 200 K to get the same desired voltage, what is the difference between
  3. 'm using STM32L0 which was from http://www.kynix.com/Detail/1118455/STM32L062K8T6.html. My firmware operates at 2V. These are stepped down from 24V. If I have a short of the 24V for a short period of time this causes a brown out on my 2V the voltage begins to oscillate from my step down. I want to solve this with software. If seen that I don't get this problem without a load ( while(1), all peripherals turned off. ) I added a for-loop at the start of the program, that held for a few seconds, that didn't help. To me this means the program does not actually reset. Its somehow latc
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