Is power supply design difficult? I believe the answer is yes. However, as an essential component of electronic products, many people want to learn it well.
First, let's take a look at the definition
stm32/boards/pllvalues.py: Relax PLLQ constraints on STM32F413 MCUs.
stm32/powerctrl: Support using PLLI2C on STM32F413 as USB clock source.
stm32/powerctrl: Allow a board to configure AHB and APB clo
The battery voltage is pulled down, the BAT battery voltage is 4.21V,
When MCU_CTL is at a low level (short-connected to GND and then released), Q5 and Q1 are turned off, and the BAT_OUT output is alr
4V350W dual-tube forward, the customer requires EMI to pass CLASS B with a margin greater than 6dB, two levels of common mode inductors T20_10_10 are added in front, and now both conduction and radiat
There was a problem with the project recently. After changing the program, the compilation was not correct.It's as if the program has not been modified, so it runs incorrectly.
Can any experts please